WO2014102234A1 - Process of stabilising the interface between two phases - Google Patents
Process of stabilising the interface between two phases Download PDFInfo
- Publication number
- WO2014102234A1 WO2014102234A1 PCT/EP2013/077886 EP2013077886W WO2014102234A1 WO 2014102234 A1 WO2014102234 A1 WO 2014102234A1 EP 2013077886 W EP2013077886 W EP 2013077886W WO 2014102234 A1 WO2014102234 A1 WO 2014102234A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- product
- plant material
- interface
- stabilizing agent
- stabilizing
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 26
- 230000003019 stabilising effect Effects 0.000 title abstract description 4
- 230000008569 process Effects 0.000 title description 6
- 239000003381 stabilizer Substances 0.000 claims abstract description 45
- 239000000463 material Substances 0.000 claims abstract description 44
- 239000012071 phase Substances 0.000 claims abstract description 31
- 239000002245 particle Substances 0.000 claims abstract description 30
- 239000008346 aqueous phase Substances 0.000 claims abstract description 24
- 235000013361 beverage Nutrition 0.000 claims abstract description 23
- 239000000203 mixture Substances 0.000 claims abstract description 18
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 16
- 235000013365 dairy product Nutrition 0.000 claims abstract description 11
- 238000002156 mixing Methods 0.000 claims abstract description 8
- 235000015243 ice cream Nutrition 0.000 claims abstract description 6
- 238000010419 pet care Methods 0.000 claims abstract description 5
- 239000006260 foam Substances 0.000 claims description 44
- 241000196324 Embryophyta Species 0.000 claims description 42
- 241000723377 Coffea Species 0.000 claims description 36
- 150000002632 lipids Chemical class 0.000 claims description 15
- 238000009826 distribution Methods 0.000 claims description 6
- 244000299461 Theobroma cacao Species 0.000 claims description 4
- 235000009470 Theobroma cacao Nutrition 0.000 claims description 3
- 235000013305 food Nutrition 0.000 abstract description 13
- 235000016213 coffee Nutrition 0.000 description 33
- 235000013353 coffee beverage Nutrition 0.000 description 33
- 239000004615 ingredient Substances 0.000 description 19
- 239000007789 gas Substances 0.000 description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- 239000000126 substance Substances 0.000 description 10
- 150000001875 compounds Chemical class 0.000 description 9
- 235000015114 espresso Nutrition 0.000 description 9
- 150000004676 glycans Chemical class 0.000 description 8
- 229920001282 polysaccharide Polymers 0.000 description 8
- 239000005017 polysaccharide Substances 0.000 description 8
- 238000000605 extraction Methods 0.000 description 7
- 230000006641 stabilisation Effects 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 235000013824 polyphenols Nutrition 0.000 description 6
- 235000021539 instant coffee Nutrition 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- 238000011105 stabilization Methods 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 4
- 150000008442 polyphenolic compounds Chemical class 0.000 description 4
- 239000004094 surface-active agent Substances 0.000 description 4
- 241000233866 Fungi Species 0.000 description 3
- 241001465754 Metazoa Species 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000000796 flavoring agent Substances 0.000 description 3
- 235000019634 flavors Nutrition 0.000 description 3
- 239000004872 foam stabilizing agent Substances 0.000 description 3
- 230000000813 microbial effect Effects 0.000 description 3
- 235000013336 milk Nutrition 0.000 description 3
- 239000008267 milk Substances 0.000 description 3
- 210000004080 milk Anatomy 0.000 description 3
- -1 nitrogenous compounds Chemical class 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 235000013311 vegetables Nutrition 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 102000014171 Milk Proteins Human genes 0.000 description 2
- 108010011756 Milk Proteins Proteins 0.000 description 2
- 244000046052 Phaseolus vulgaris Species 0.000 description 2
- 235000010627 Phaseolus vulgaris Nutrition 0.000 description 2
- 235000008453 RTD coffee Nutrition 0.000 description 2
- 238000000149 argon plasma sintering Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000007853 buffer solution Substances 0.000 description 2
- 235000015116 cappuccino Nutrition 0.000 description 2
- 235000009508 confectionery Nutrition 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 235000012171 hot beverage Nutrition 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 235000021239 milk protein Nutrition 0.000 description 2
- 230000008447 perception Effects 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000011179 visual inspection Methods 0.000 description 2
- OMDQUFIYNPYJFM-XKDAHURESA-N (2r,3r,4s,5r,6s)-2-(hydroxymethyl)-6-[[(2r,3s,4r,5s,6r)-4,5,6-trihydroxy-3-[(2s,3s,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-2-yl]methoxy]oxane-3,4,5-triol Chemical compound O[C@@H]1[C@@H](O)[C@@H](O)[C@@H](CO)O[C@@H]1OC[C@@H]1[C@@H](O[C@H]2[C@H]([C@@H](O)[C@H](O)[C@@H](CO)O2)O)[C@H](O)[C@H](O)[C@H](O)O1 OMDQUFIYNPYJFM-XKDAHURESA-N 0.000 description 1
- GUBGYTABKSRVRQ-XLOQQCSPSA-N Alpha-Lactose Chemical compound O[C@@H]1[C@@H](O)[C@@H](O)[C@@H](CO)O[C@H]1O[C@@H]1[C@@H](CO)O[C@H](O)[C@H](O)[C@H]1O GUBGYTABKSRVRQ-XLOQQCSPSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 229920000926 Galactomannan Polymers 0.000 description 1
- GUBGYTABKSRVRQ-QKKXKWKRSA-N Lactose Natural products OC[C@H]1O[C@@H](O[C@H]2[C@H](O)[C@@H](O)C(O)O[C@@H]2CO)[C@H](O)[C@@H](O)[C@H]1O GUBGYTABKSRVRQ-QKKXKWKRSA-N 0.000 description 1
- 229920000057 Mannan Polymers 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 244000269722 Thea sinensis Species 0.000 description 1
- 239000005862 Whey Substances 0.000 description 1
- 102000007544 Whey Proteins Human genes 0.000 description 1
- 108010046377 Whey Proteins Proteins 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000003190 augmentative effect Effects 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 235000019577 caloric intake Nutrition 0.000 description 1
- 150000001720 carbohydrates Chemical group 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000005018 casein Substances 0.000 description 1
- BECPQYXYKAMYBN-UHFFFAOYSA-N casein, tech. Chemical compound NCCCCC(C(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(CC(C)C)N=C(O)C(CCC(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(C(C)O)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(COP(O)(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(N)CC1=CC=CC=C1 BECPQYXYKAMYBN-UHFFFAOYSA-N 0.000 description 1
- 235000021240 caseins Nutrition 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007385 chemical modification Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 235000019219 chocolate Nutrition 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 150000002016 disaccharides Chemical class 0.000 description 1
- BNIILDVGGAEEIG-UHFFFAOYSA-L disodium hydrogen phosphate Chemical compound [Na+].[Na+].OP([O-])([O-])=O BNIILDVGGAEEIG-UHFFFAOYSA-L 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 235000021554 flavoured beverage Nutrition 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 235000012041 food component Nutrition 0.000 description 1
- 239000005417 food ingredient Substances 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 239000008101 lactose Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 235000020166 milkshake Nutrition 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000001788 mono and diglycerides of fatty acids Substances 0.000 description 1
- 235000010935 mono and diglycerides of fatty acids Nutrition 0.000 description 1
- 229910000402 monopotassium phosphate Inorganic materials 0.000 description 1
- 235000019796 monopotassium phosphate Nutrition 0.000 description 1
- 150000002772 monosaccharides Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 235000021485 packed food Nutrition 0.000 description 1
- PJNZPQUBCPKICU-UHFFFAOYSA-N phosphoric acid;potassium Chemical compound [K].OP(O)(O)=O PJNZPQUBCPKICU-UHFFFAOYSA-N 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000003389 potentiating effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 235000015067 sauces Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 235000014347 soups Nutrition 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23G—COCOA; COCOA PRODUCTS, e.g. CHOCOLATE; SUBSTITUTES FOR COCOA OR COCOA PRODUCTS; CONFECTIONERY; CHEWING GUM; ICE-CREAM; PREPARATION THEREOF
- A23G9/00—Frozen sweets, e.g. ice confectionery, ice-cream; Mixtures therefor
- A23G9/32—Frozen sweets, e.g. ice confectionery, ice-cream; Mixtures therefor characterised by the composition containing organic or inorganic compounds
- A23G9/42—Frozen sweets, e.g. ice confectionery, ice-cream; Mixtures therefor characterised by the composition containing organic or inorganic compounds containing plants or parts thereof, e.g. fruits, seeds, extracts
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23F—COFFEE; TEA; THEIR SUBSTITUTES; MANUFACTURE, PREPARATION, OR INFUSION THEREOF
- A23F5/00—Coffee; Coffee substitutes; Preparations thereof
- A23F5/02—Treating green coffee; Preparations produced thereby
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23F—COFFEE; TEA; THEIR SUBSTITUTES; MANUFACTURE, PREPARATION, OR INFUSION THEREOF
- A23F5/00—Coffee; Coffee substitutes; Preparations thereof
- A23F5/10—Treating roasted coffee; Preparations produced thereby
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L2/00—Non-alcoholic beverages; Dry compositions or concentrates therefor; Their preparation
- A23L2/52—Adding ingredients
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23P—SHAPING OR WORKING OF FOODSTUFFS, NOT FULLY COVERED BY A SINGLE OTHER SUBCLASS
- A23P30/00—Shaping or working of foodstuffs characterised by the process or apparatus
- A23P30/40—Foaming or whipping
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23C—DAIRY PRODUCTS, e.g. MILK, BUTTER OR CHEESE; MILK OR CHEESE SUBSTITUTES; MAKING THEREOF
- A23C2210/00—Physical treatment of dairy products
- A23C2210/30—Whipping, foaming, frothing or aerating dairy products
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
- A23V2002/00—Food compositions, function of food ingredients or processes for food or foodstuffs
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
- A23V2200/00—Function of food ingredients
Definitions
- the present invention relates to a process of stabilizing the interface between two phases.
- the present invention relates to a stabilizing agent and to the use of said stabilizing agent for stabilizing the interface between a gas phase and an aqueous phase of a product.
- Foams can be used to create an exciting and pleasurable food experience by altering the perception of colour, texture and flavour.
- one of the chief challenges associated with foams is to generate edible products that either maintain their structure over the desired shelf-life or can conveniently produce the foam at the targeted point-of-consumption.
- Foam stability is governed by a range of mechanisms, including the
- the most traditionally used approach for stabilizing the foam interface involve the use of either low or high molecular weight surfactants (sometimes referred to as emulsifiers) or a combination of the two.
- low or high molecular weight surfactants sometimes referred to as emulsifiers
- examples include mono- and diglycerides of fatty acids for low molecular weight surfactants and milk proteins for high molecular weight surfactants.
- surfactants can be molecularly dissolved in liquids although they may locally associate to form mesophases for certain concentration ranges.
- an object of the present invention relates to the provision of a stabilizing agent and the use of such stabilizing agent for stabilizing the interface between a gas phase and an aqueous phase.
- a further object of the present invention relates to the provision of a method for the preparation of a product having improved stability between at least two phases of the product.
- one aspect of the invention relates to a method for stabilizing the interface between at least two phases of a product, the method comprising the steps of:
- a stabilizing agent comprising particles of a plant material
- Another aspect of the present invention relates to a product obtainable by the above method.
- Yet another aspect of the present invention relates to a stabilizing agent comprising micronized particles of a plant material, wherein the particles of the plant material have a particle distribution size in the range from 1-100 Mm.
- Still another aspect of the present invention relates to the use of said stabilizing agent for stabilizing the interface between a gas phase and an aqueous phase of a product.
- Figure 1 shows the particle distribution size of the foam stabilizers described in Table 1.
- MRC represents micronized roasted coffee
- EMRC represents exhausted micronized roasted coffee
- DMRC represents defatted micronized roasted coffee
- DEMRC defatted exhausted micronized roasted coffee.
- crema refers to the foam or froth covering the surface of a high quality cup of espresso the colour of which varies from reddish brown to beige. Crema is very important in making a good espresso. The presence of crema is the main difference between drip coffee and espresso. Crema releases potent coffee aroma and flavour compounds remaining in the mouth and throat long after drinking the espresso.
- polyphenols refers to a structural class of organic chemicals characterized by the presence of large multiples of phenol units.
- Polysaccharides are polymeric carbohydrate structures, formed of repeating units (either mono- or disaccharides) joined by glycosidic bonds.
- the structure of polysaccharides is often linear, but may also display various degrees of branching .
- Polysaccharides are often quite heterogeneous, containing slight modifications of the repeating unit.
- polysaccharide molecules refers to mannan and galactomannan
- nitrogenous compounds refers to a structural class of natural organic chemicals characterized by the presence of large amounts of nitrogen atoms within their structure. Dry weight
- the dry weight refers to the measurement of the mass of matter when completely dried and all fluids are completely removed from the matter.
- the dry weight % of a substance refers to the relative amount of said substance in the total dry weight matter. In the description of the present invention dry weight % is termed "w/w %".
- a beverage product refers to a liquid prepared for human consumption.
- a powdered beverage product refers to a dry matter product (such as an instant powder) which may be reconstituted into a beverage by the addition of a liquid such as water.
- a beverage may be served hot or cold.
- the term hot beverage product refers to a beverage which is served heated.
- a hot beverage product may be obtained by the addition of a heated liquid (for example in the form of water or milk) or by heating the beverage as such.
- an increase in foam stability may be obtained by adding a stabilizing agent comprising particles of a plant material to a composition comprising at least one gas phase and at least one aqueous phase.
- an aspect of the present invention relates to a method for stabilizing the interface between at least two phases of a product and the product obtained by said process.
- the present invention relates to a method for stabilizing the interface between at least two phases of a product, the method comprising the steps of:
- composition comprising : (a) at least one gas phase;
- a stabilizing agent comprising particles of a plant material; (ii) mixing the composition in order to stabilize the interface between the at least one gas phase and at least one aqueous phase of a product.
- a foam stabilizer comprising particles of a plant material may be seen as a food source ingredient, in particular as a plant source ingredient. Accordingly such a stabilizer creates a competitive advantage as it meets the need of the modern consumer who demands food comprising natural and sustainable food ingredients (such as stabilizers).
- Stabilizers may be added to many types of food products to increase foam stability. Foam stability may decrease over time thus it may also be advantageous to preserve the initial foam stability. From an industry perspective it may be advantageous to replace synthetic stabilizers with a "food source ingredient".
- synthetic stabilizers relates to ingredients produced using non-food source ingredients.
- Food source ingredient stabilizer on the other hand is to be understood as vegetable source ingredients, animal source ingredients, microbial source ingredients and/or fungi source ingredients. These vegetable source ingredients, animal source ingredients, microbial source ingredients and fungi source ingredients may be derived from a vegetable source, an animal source, a microbial source and/or a fungi source, respectively, primarily through physical processing, e.g. separation, filtration centrifugation, ion exchange, and/or sometimes facilitated by simple chemical reactions such as acidification, basification, hydrolysis, or salt formation.
- the gas phase may comprise nitrogen, oxygen, air, carbon dioxide and any combination thereof. From a cost perspective it may be preferred that the gas- aqueous interface is an air-water interface.
- the aqueous phase may be any kind of liquid comprising water. It may be preferred that the aqueous phase is a dairy based aqueous product or a beverage product.
- dairy based aqueous product is to be understood as a product comprising ingredients which are fully or partly of dairy origin.
- the dairy based aqueous product may be selected from the group consisting of ice cream base, cream, milk, or milk fractions, such as whey, lactose, casein and/or milk proteins, and any combination hereof.
- the at least one aqueous phase such as the at least one dairy based aqueous product
- the at least one gas phase in order to provide a light textured and/or creamy product.
- the product comprises fewer calories compared to a similar product of the same volume comprising no or merely a limited amount of gas.
- the mixing in step (ii) may involve shaking with low or high energy input and/or stirring with high or low energy input, whipping with high or low energy input, gas sparging, decompression of a compressed mixture of a gas phase and a aqueous phase, de-solubilisation of a soluble gas phase inside a aqueous phase.
- step (ii) a product comprising an improved stability between at least two phases is obtained.
- the present invention also pertains to such a product which is obtainable by the method of the present invention.
- the pH of the composition is adjusted to a pH value above 4, e.g. a pH value above 5, such as a pH value above 6, such as a pH value above 7, e.g. a pH value of pH 8 or above, such as in the range from pH 4-8, e.g. in the range from pH 5-7, such as in the range from pH 6-8, preferably in the range from pH 7-8 either before mixing, during mixing or following mixing of the composition.
- the product or at least part of the product obtained is a foam.
- the foam may be crema if the product obtained is a coffee based product, such as espresso.
- the product or the foam of the product comprises particles of a plant material.
- pH of the product or the aqueous phase of the foam of the product has a pH value above 6, e.g . a pH value above 7, such as a pH value of pH 8 or above, e.g. between pH 6-8, preferably between pH 7-8.
- Lipid(s) are generally known to reduce foam stability. Thus, it may be preferred that the product or the foam of the product comprises substantially no lipid(s). In a particular preferred embodiment the product or the foam of the product comprises no lipid(s) originating from the micronized plant material. In the present context the term "lipid(s)" is to be understood as a compound comprising at least 3 fatty acids.
- An additional advantage of providing a product and/or a foam of a product comprising no lipid(s) is that the calorie intake per serving of such a product may be decreased.
- the product may be selected from the group consisting of a chilled dairy product, an ambient diary product, an ice cream product, a confectionery product pet-care product and a beverage product
- the beverage product may be a coffee based product (such as but not limited to espresso, cappuccino, iced coffee or ice blended coffee, instant coffee, instant espresso coffee, and coffee mixes, coffee mixtures, mixes of roast and ground coffee and instant coffee, and ready-to-drink coffee beverages).
- Another aspect of the present invention pertains to a stabilizing agent and the use of such a stabilizing agent for stabilizing the interface between a gas phase and an aqueous phase.
- the stabilizing agent comprising micronized particles of a plant material. It may be preferred that at least 75%, such as at least 85%, e.g. at least 95% of the particles of the plant material in the stabilizing agent have a particle size in the range from 1 - 100 Mm (percent by volume).
- the stabilising agent has a pH value above 4, e.g . a pH value above 5, such as a pH value above 6, such as a pH value above 7, e.g . a pH value of pH 8 or above, such as in the range from pH 4-8, e.g. in the range from pH 5-7, such as in the range from pH 6-8, preferably in the range from pH 7-8. Due to the negative effects of lipid(s) on the foam stability it may be desired that the stabilizing agent is defatted or substantially defatted . In particular it may be preferred that the stabilizing agent is defatted or substantially defatted before being added to a composition.
- the stabilizing agent comprises substantially no lipids(s).
- the stabilizing agent comprises no lipid(s) originating from the micronized plant material.
- the term "defatted” is to be understood as a stabilizing agent comprising less that 5 w/w% lipids, such as less than 1 w/w% lipids, e.g . in the range of 0.01-5, such as in the range of 0.1-3, e.g. in the range of 0.5-2, e.g. in the range of 0.75-1.
- the stabilizing agent of the present invention may be used for stabilizing the interface between a gas phase and an aqueous phase of a product.
- the product may be selected from the group consisting of a chilled dairy product, an ambient diary product, an ice cream product, a confectionery product pet-care product and a beverage product.
- the beverage product may be ice tea, chocolate drinks, fruit beverages, sport beverages, energy beverages, healthy drinks, dairy beverages, soups, sauces, alcohol containing beverages and milkshakes, ice coffee, coffee flavoured beverages, other coffee based products (such as but not limited to espresso, cappuccino, iced coffee or ice blended coffee, instant coffee, instant espresso coffee and coffee mixes, coffee mixtures, mixes of roast and ground coffee and instant coffee, and ready-to-drink coffee beverages).
- the plant material of the stabilizing agent such as but not limited to espresso, cappuccino, iced coffee or ice blended coffee, instant coffee, instant espresso coffee and coffee mixes, coffee mixtures, mixes of roast and ground coffee and instant coffee, and ready-to-drink coffee beverages.
- the plant material is derived from a seed- or bean bearing plant.
- the seed or bean comprises at least 0.1 w/w% oil, such as at least 1 w/w% oil, e.g. at least 5 w/w% oil, e.g. in the range from 0.1-5 w/w %.
- the plant material comprises an acceptable taste which does not negatively affect the taste of a product comprising the stabilizer.
- the plant material may be selected from the group consisting of Coffea and
- Stabilizers comprising plant materials may be seen as food source ingredients thus, fulfilling the needs of the consumer and thus the food industry.
- the particles of a plant material may be a micronized plant material.
- micronized plant material MPM
- untreated plant material is to be understood as the plant material has not been subjected to physico-chemical modification such as but not limited to extraction, fractionation or concentration prior to being micronized.
- the plant material may however be subjected to a heat treatment (e.g. roasted) prior to being micronized.
- the MPM comprises substantially the same compounds as the plant material from which they are derived.
- Such compounds may for example be nitrogenous compounds, polyphenols and polysaccharide molecules.
- the MPM may be water insoluble or at least partially water insoluble due to their substantially intact composition.
- the plant material comprises components that are water- insoluble, or water soluble compounds such as but not limited to nitrogenous compounds, polyphenols and/or polysaccharide molecules.
- the water-insoluble compounds may be fibrous material from the plant material.
- MPM may be provided by subjecting a plant material to a process selected from the group consisting of milling, grinding and pulverization.
- the MPM may comprise a volume average particle size (PDS) in the range from 1 - 100 Mm. It may be further preferred that at least 75%, such as at least 85%, e.g. at least 95% of the particles of the MPM have a particle size in the range from 1 - 100 Mm (percent by volume).
- the particle distribution size may be determined by a standard analytical method, e.g. using light scattering such as by using a Malvern light scattering instrument. This method is commonly used by people skilled in the art.
- the particles of the plant material may be subjected to an extraction which may be a high degree of extraction prior being added to a composition.
- extraction is to be understood as a separation process comprising the separation of a substance from a matrix using an aqueous phase where the substance to be separated is soluble (e.g. separation of water soluble compounds from a plant material).
- high degree of extraction is to be understood as a substantially exhausted separation of a substance from a matrix using a liquid phase where the substance to be separated is soluble.
- the particles of the plant material are not subjected to a high degree of extraction or extraction of water soluble compounds prior to being added to the composition.
- water soluble compounds may be polyphenol compounds, nitrogenous compounds and polysaccharide molecules.
- Foams were generated using the following additional materials:
- Samples 1 - 4 (5mg and 50mg) were dissolved in MilliQ water (3.5ml) and the pH of the solutions was adjusted to pH 2, 4 and 6 using hydrochloric acid and pH 8 using sodium hydroxide. The volume was completed to 5ml_ yielding two solutions of 0.1 weight percent (wt %) and 1 wt% respectively. Foams at 0.1 wt% of coffee extract were also formed at pH 7 using buffer solution.
- the foams were prepared in 15 ml polypropylene Falcon tubes (BD Biosciences). The samples were placed in glass test tubes and vigorously shaken by hand for approximately 5 seconds. They were then placed vertically in a test tube stand . The foaming performance was evaluated by visual inspection of the foam height and recorded by digital photography. Results and Discussion
- Foams were prepared by vigorously shaking aqueous solutions of samples 1 - 4 at pH 2 - 8. The foams formed by the coffee samples were compared through visual inspection. The result showed an increasing foam height and increasing foam stability with increasing pH for sample 3 (i.e. the defatted MRC). The same trend was noted for samples 1, 2 and 4.
Abstract
The present invention relates to a method for stabilizing the interface between at least two phases of a product, the method comprising the steps of (i) providing a composition comprising (a) at least one gas phase, (b) at least one aqueous phase, (c) a stabilizing agent comprising particles of a plant material and (ii) mixing the composition in order to stabilize the interface between the at least one gas phase and at least one aqueous phase of a product. The invention relates also to products, such as food and beverage products, obtainable from the method, and to the use of a related stabilising agent for stabilising the interface between a gas phase and an aqueous phase of a dairy product, an ice cream product, a pet-care product or a beverage product.
Description
PROCESS OF STABILISING THE INTERFACE BETWEEN TWO PHASES
Field of the invention
The present invention relates to a process of stabilizing the interface between two phases. In particular, the present invention relates to a stabilizing agent and to the use of said stabilizing agent for stabilizing the interface between a gas phase and an aqueous phase of a product.
Background of the invention
Foams can be used to create an exciting and pleasurable food experience by altering the perception of colour, texture and flavour. In packaged food, one of the chief challenges associated with foams is to generate edible products that either maintain their structure over the desired shelf-life or can conveniently produce the foam at the targeted point-of-consumption.
Foam stability is governed by a range of mechanisms, including the
microstructural geometry of the dispersed gas phase, the viscoelastic properties of the continuous liquid phase and the physico-chemical properties of the interfacial layer.
The most traditionally used approach for stabilizing the foam interface involve the use of either low or high molecular weight surfactants (sometimes referred to as emulsifiers) or a combination of the two. Examples include mono- and diglycerides of fatty acids for low molecular weight surfactants and milk proteins for high molecular weight surfactants. Surfactants can be molecularly dissolved in liquids although they may locally associate to form mesophases for certain concentration ranges.
Hence, there is a need in the industry for a new and/or an alternative way for stabilising the foam of food products. This stabilisation also needs to result in a food product having a pleasurable food experience in respect of perception of colour, texture and flavour.
Summary of the invention
Thus, an object of the present invention relates to the provision of a stabilizing agent and the use of such stabilizing agent for stabilizing the interface between a gas phase and an aqueous phase.
A further object of the present invention relates to the provision of a method for the preparation of a product having improved stability between at least two phases of the product. Thus, one aspect of the invention relates to a method for stabilizing the interface between at least two phases of a product, the method comprising the steps of:
(i) providing a composition comprising :
(a) at least one gas phase,
(b) at least one aqueous phase,
(c) a stabilizing agent comprising particles of a plant material and
(ii) mixing the composition in order to stabilize the interface between the at least gas phase and at least one aqueous phase of a product.
Another aspect of the present invention relates to a product obtainable by the above method.
Yet another aspect of the present invention relates to a stabilizing agent comprising micronized particles of a plant material, wherein the particles of the plant material have a particle distribution size in the range from 1-100 Mm.
Still another aspect of the present invention relates to the use of said stabilizing agent for stabilizing the interface between a gas phase and an aqueous phase of a product. The present invention will now be described in more detail in the following. Description of the drawing
Figure 1 shows the particle distribution size of the foam stabilizers described in Table 1. MRC represents micronized roasted coffee; EMRC represents exhausted
micronized roasted coffee; DMRC represents defatted micronized roasted coffee; and DEMRC represents defatted exhausted micronized roasted coffee.
Detailed description of the invention
Definitions
Prior to discussing the present invention in further details, the following terms and conventions will be defined :
Crema
The term "crema" refers to the foam or froth covering the surface of a high quality cup of espresso the colour of which varies from reddish brown to beige. Crema is very important in making a good espresso. The presence of crema is the main difference between drip coffee and espresso. Crema releases potent coffee aroma and flavour compounds remaining in the mouth and throat long after drinking the espresso.
Polyphenols
In the context of the present invention "polyphenols" refers to a structural class of organic chemicals characterized by the presence of large multiples of phenol units.
Polysaccharide molecules
Polysaccharides are polymeric carbohydrate structures, formed of repeating units (either mono- or disaccharides) joined by glycosidic bonds. The structure of polysaccharides is often linear, but may also display various degrees of branching . Polysaccharides are often quite heterogeneous, containing slight modifications of the repeating unit. In an embodiment of the present invention the term
"polysaccharide molecules" refers to mannan and galactomannan
Nitrogenous compounds
In the context of the present invention, "nitrogenous compounds" refers to a structural class of natural organic chemicals characterized by the presence of large amounts of nitrogen atoms within their structure.
Dry weight
The dry weight refers to the measurement of the mass of matter when completely dried and all fluids are completely removed from the matter. The dry weight % of a substance refers to the relative amount of said substance in the total dry weight matter. In the description of the present invention dry weight % is termed "w/w %".
Beverage product
In the context of the present invention, a beverage product refers to a liquid prepared for human consumption. A powdered beverage product refers to a dry matter product (such as an instant powder) which may be reconstituted into a beverage by the addition of a liquid such as water. A beverage may be served hot or cold. The term hot beverage product refers to a beverage which is served heated. A hot beverage product may be obtained by the addition of a heated liquid (for example in the form of water or milk) or by heating the beverage as such.
Other definitions and/or explanations are present in the detailed description below.
Stabilizing process
It has surprisingly been found by the present inventor that an increase in foam stability (or preservation of foam stability) may be obtained by adding a stabilizing agent comprising particles of a plant material to a composition comprising at least one gas phase and at least one aqueous phase.
As mentioned above an aspect of the present invention relates to a method for stabilizing the interface between at least two phases of a product and the product obtained by said process.
Thus, in one embodiment the present invention relates to a method for stabilizing the interface between at least two phases of a product, the method comprising the steps of:
(i) providing a composition comprising :
(a) at least one gas phase;
(b) at least one aqueous phase;
(c) a stabilizing agent comprising particles of a plant material; (ii) mixing the composition in order to stabilize the interface between the at least one gas phase and at least one aqueous phase of a product.
A foam stabilizer comprising particles of a plant material may be seen as a food source ingredient, in particular as a plant source ingredient. Accordingly such a stabilizer creates a competitive advantage as it meets the need of the modern consumer who demands food comprising natural and sustainable food ingredients (such as stabilizers).
Stabilizers may be added to many types of food products to increase foam stability. Foam stability may decrease over time thus it may also be advantageous to preserve the initial foam stability. From an industry perspective it may be advantageous to replace synthetic stabilizers with a "food source ingredient". In the present context the term "synthetic stabilizers" relates to ingredients produced using non-food source ingredients. "Food source ingredient" stabilizer on the other hand is to be understood as vegetable source ingredients, animal source ingredients, microbial source ingredients and/or fungi source ingredients. These vegetable source ingredients, animal source ingredients, microbial source ingredients and fungi source ingredients may be derived from a vegetable source, an animal source, a microbial source and/or a fungi source, respectively, primarily through physical processing, e.g. separation, filtration centrifugation, ion exchange, and/or sometimes facilitated by simple chemical reactions such as acidification, basification, hydrolysis, or salt formation.
The gas phase may comprise nitrogen, oxygen, air, carbon dioxide and any combination thereof. From a cost perspective it may be preferred that the gas- aqueous interface is an air-water interface.
The aqueous phase may be any kind of liquid comprising water. It may be preferred that the aqueous phase is a dairy based aqueous product or a beverage product.
In the present context the term dairy based aqueous product is to be understood as a product comprising ingredients which are fully or partly of dairy origin. The dairy based aqueous product may be selected from the group consisting of ice cream base, cream, milk, or milk fractions, such as whey, lactose, casein and/or milk proteins, and any combination hereof.
It may be advantageous to increase the stability between the at least one aqueous phase, such as the at least one dairy based aqueous product, and the at least one gas phase in order to provide a light textured and/or creamy product. As part of the total volume of such a light textured product is gas, the product comprises fewer calories compared to a similar product of the same volume comprising no or merely a limited amount of gas. Such a product meets the needs of the modern consumer who demands products which simultaneously are low in calories and comprises a light textured product having a great mouth feel.
In an embodiment of the present invention the mixing in step (ii) may involve shaking with low or high energy input and/or stirring with high or low energy input, whipping with high or low energy input, gas sparging, decompression of a compressed mixture of a gas phase and a aqueous phase, de-solubilisation of a soluble gas phase inside a aqueous phase.
Following step (ii) a product comprising an improved stability between at least two phases is obtained. Obviously, the present invention also pertains to such a product which is obtainable by the method of the present invention.
As the product obtained is intended for human consumption the taste is of outmost importance. Thus, it may be preferred that the pH of the composition is adjusted to a pH value above 4, e.g. a pH value above 5, such as a pH value above 6, such as a pH value above 7, e.g. a pH value of pH 8 or above, such as in the range from pH 4-8, e.g. in the range from pH 5-7, such as in the range from pH 6-8, preferably in the range from pH 7-8 either before mixing, during mixing or following mixing of the composition.
In one embodiment the product or at least part of the product obtained is a foam. The foam may be crema if the product obtained is a coffee based product, such as espresso. In one embodiment the product or the foam of the product comprises particles of a plant material. As taste is one of the key attributes driving consumer preference, it may be contemplated that pH of the product or the aqueous phase of the foam of the product has a pH value above 6, e.g . a pH value above 7, such as a pH value of pH 8 or above, e.g. between pH 6-8, preferably between pH 7-8.
Lipid(s) are generally known to reduce foam stability. Thus, it may be preferred that the product or the foam of the product comprises substantially no lipid(s). In a particular preferred embodiment the product or the foam of the product comprises no lipid(s) originating from the micronized plant material. In the present context the term "lipid(s)" is to be understood as a compound comprising at least 3 fatty acids. An additional advantage of providing a product and/or a foam of a product comprising no lipid(s) is that the calorie intake per serving of such a product may be decreased.
In an embodiment of the present invention the product may be selected from the group consisting of a chilled dairy product, an ambient diary product, an ice cream product, a confectionery product pet-care product and a beverage product The beverage product may be a coffee based product (such as but not limited to espresso, cappuccino, iced coffee or ice blended coffee, instant coffee, instant espresso coffee, and coffee mixes, coffee mixtures, mixes of roast and ground coffee and instant coffee, and ready-to-drink coffee beverages).
Stabilizing agent
Another aspect of the present invention pertains to a stabilizing agent and the use of such a stabilizing agent for stabilizing the interface between a gas phase and an aqueous phase.
In an embodiment of the present invention the stabilizing agent comprising micronized particles of a plant material. It may be preferred that at least 75%, such as at least 85%, e.g. at least 95% of the particles of the plant material in the
stabilizing agent have a particle size in the range from 1 - 100 Mm (percent by volume).
As the stabilizing agent is intended for human consumption it may be preferred that the stabilising agent has a pH value above 4, e.g . a pH value above 5, such as a pH value above 6, such as a pH value above 7, e.g . a pH value of pH 8 or above, such as in the range from pH 4-8, e.g. in the range from pH 5-7, such as in the range from pH 6-8, preferably in the range from pH 7-8. Due to the negative effects of lipid(s) on the foam stability it may be desired that the stabilizing agent is defatted or substantially defatted . In particular it may be preferred that the stabilizing agent is defatted or substantially defatted before being added to a composition. Thus, in a preferred embodiment the stabilizing agent comprises substantially no lipids(s). In an even more preferred embodiment the stabilizing agent comprises no lipid(s) originating from the micronized plant material. In the present context the term "defatted" is to be understood as a stabilizing agent comprising less that 5 w/w% lipids, such as less than 1 w/w% lipids, e.g . in the range of 0.01-5, such as in the range of 0.1-3, e.g. in the range of 0.5-2, e.g. in the range of 0.75-1.
The stabilizing agent of the present invention may be used for stabilizing the interface between a gas phase and an aqueous phase of a product. In a preferred embodiment the product may be selected from the group consisting of a chilled dairy product, an ambient diary product, an ice cream product, a confectionery product pet-care product and a beverage product. The beverage product may be ice tea, chocolate drinks, fruit beverages, sport beverages, energy beverages, healthy drinks, dairy beverages, soups, sauces, alcohol containing beverages and milkshakes, ice coffee, coffee flavoured beverages, other coffee based products (such as but not limited to espresso, cappuccino, iced coffee or ice blended coffee, instant coffee, instant espresso coffee and coffee mixes, coffee mixtures, mixes of roast and ground coffee and instant coffee, and ready-to-drink coffee beverages).
The plant material of the stabilizing agent
It may be contemplated that the plant material is derived from a seed- or bean bearing plant. Preferably, the seed or bean comprises at least 0.1 w/w% oil, such as at least 1 w/w% oil, e.g. at least 5 w/w% oil, e.g. in the range from 0.1-5 w/w %. As the stabilizer is intended for human consumption it may be preferred that the plant material comprises an acceptable taste which does not negatively affect the taste of a product comprising the stabilizer. Thus, a preferred embodiment the plant material may be selected from the group consisting of Coffea and
Theobroma cacao. Stabilizers comprising plant materials may be seen as food source ingredients thus, fulfilling the needs of the consumer and thus the food industry.
In an embodiment the particles of a plant material may be a micronized plant material. In the present context the term "micronized plant material" (MPM) is to be understood as particles of an untreated plant material. In the present context the term "untreated plant material" is to be understood as the plant material has not been subjected to physico-chemical modification such as but not limited to extraction, fractionation or concentration prior to being micronized. The plant material may however be subjected to a heat treatment (e.g. roasted) prior to being micronized.
Thus, in an embodiment of the present invention the MPM comprises substantially the same compounds as the plant material from which they are derived. Such compounds may for example be nitrogenous compounds, polyphenols and polysaccharide molecules. Thus, the MPM may be water insoluble or at least partially water insoluble due to their substantially intact composition.
In an embodiment the plant material comprises components that are water- insoluble, or water soluble compounds such as but not limited to nitrogenous compounds, polyphenols and/or polysaccharide molecules. The water-insoluble compounds may be fibrous material from the plant material.
MPM may be provided by subjecting a plant material to a process selected from the group consisting of milling, grinding and pulverization.
As the overall texture of the product comprising the stabilizer may be affected by the size of the MPM it may be preferred that the MPM may comprise a volume average particle size (PDS) in the range from 1 - 100 Mm. It may be further preferred that at least 75%, such as at least 85%, e.g. at least 95% of the particles of the MPM have a particle size in the range from 1 - 100 Mm (percent by volume).
The particle distribution size may be determined by a standard analytical method, e.g. using light scattering such as by using a Malvern light scattering instrument. This method is commonly used by people skilled in the art.
The particles of the plant material may be subjected to an extraction which may be a high degree of extraction prior being added to a composition. In the present context the term "extraction" is to be understood as a separation process comprising the separation of a substance from a matrix using an aqueous phase where the substance to be separated is soluble (e.g. separation of water soluble compounds from a plant material). The term "high degree of extraction" is to be understood as a substantially exhausted separation of a substance from a matrix using a liquid phase where the substance to be separated is soluble.
In a preferred embodiment of the present invention the particles of the plant material are not subjected to a high degree of extraction or extraction of water soluble compounds prior to being added to the composition. Examples of such water soluble compounds may be polyphenol compounds, nitrogenous compounds and polysaccharide molecules.
It should be noted that embodiments and features described in the context of one of the aspects of the present invention also apply to the other aspects of the invention.
All patent and non-patent references cited in the present application, are hereby incorporated by reference in their entirety.
The invention will now be described in further details in the following non-limiting examples.
Examples
Materials and Methods
Foams were generated as described below. Coffee Ingredients
Four ingredients from coffee were tested as foam stabilizers and prepared as described in Table 1 below. The particle size distributions of the foam stabilizers described in Table 1 are shown in figure 1. Additional Materials
Foams were generated using the following additional materials:
• MilliQ water,
• Hydrochloric acid (Merck) (for making aqueous solutions at pH 2, 4, 6),
• Sodium hydroxide (Merck) (for making aqueous solutions at pH 8),
· Disodium hydrogen phosphate/potassium dihydrogen phosphate pH 7
buffer solution (Merck).
Experiments were performed to test the ability of coffee ingredients to stabilize interfaces.
Table 1
Foam Stability Experiments
Samples 1 - 4 (5mg and 50mg) were dissolved in MilliQ water (3.5ml) and the pH of the solutions was adjusted to pH 2, 4 and 6 using hydrochloric acid and pH 8 using sodium hydroxide. The volume was completed to 5ml_ yielding two solutions of 0.1 weight percent (wt %) and 1 wt% respectively. Foams at 0.1 wt% of coffee extract were also formed at pH 7 using buffer solution. The foams were prepared in 15 ml polypropylene Falcon tubes (BD Biosciences). The samples were placed in glass test tubes and vigorously shaken by hand for approximately 5 seconds. They were then placed vertically in a test tube stand . The foaming performance was evaluated by visual inspection of the foam height and recorded by digital photography. Results and Discussion
Foams were prepared by vigorously shaking aqueous solutions of samples 1 - 4 at pH 2 - 8. The foams formed by the coffee samples were compared through visual inspection. The result showed an increasing foam height and increasing foam stability with increasing pH for sample 3 (i.e. the defatted MRC). The same trend was noted for samples 1, 2 and 4.
A comparison between foams formed at pH 7 for samples 1-4 was also conducted. The results showed that the defatted micronized coffee (samples 3 and 4) stabilized air-water interfaces better than samples still containing lipids (samples 1 and 2). Also the exhausted micronized coffee (samples 2 and 4) did not provide the same foam stabilization as non-exhausted micronized coffee (samples 1 and 3) even though some stabilization was provided.
The proposed explanation for the above foam stability observations are as follows: the absence of lipids confers a higher stability to the foam as lipids are generally known to reduce foam stability. Secondly, contrarily to samples 2 and 4 which are exhausted (i.e. extracted to a high degree), sample 3 still contains more soluble
coffee solids including surface active melanoidines. Surface active melanoidines lead to a decreased surface tension. Since they also contain complex phenolic moieties, a pH change will lead to the physico-chemical changes that favour foam stabilization. Additionally foaming properties of micronized coffee could also be augmented by stabilization due to small particles (Pickering stabilization).
Conclusion
In simple air-water foam experiments all samples created greater foam heights and improved stabilisation of the foam at natural and mildly basic conditions (pH 7-8) compared to acidic conditions (pH 2-4). The de-fatted micronized roasted coffee was the most efficient at stabilizing foams.
Claims
1. A method for stabilizing the interface between at least two phases of a product, the method comprising the steps of:
(i) providing a composition comprising :
(a) at least one gas phase;
(b) at least one aqueous phase;
(c) a stabilizing agent comprising particles of a plant material; (ii) mixing the composition in order to stabilize the interface between the at least one gas phase and at least one aqueous phase of a product.
2. The method according to claim 1, wherein the interface is a gas-aqueous interface.
3. The method according to any one of claims 1-2, wherein the particles of the plant material are a micronized plant material.
4. The method according to any one of claims 1-3, wherein the micronized plant material has a particle distribution size in the range from 1 - 100 Mm.
5. The method according to any one of claims 1-4, wherein the plant material is selected from the group consisting of Coffea and Theobroma cacao.
6. A product obtainable by the method according the any one of claims 1-5.
7. The product according to claim 6, wherein the product or at least part of the product obtained is a foam.
8. The product according to claim 7, wherein the product or the foam of the product comprises particles of a plant material.
9. The product according to any one of claims 6-8, wherein the product is a dairy product, an ice-cream product, a pet-care product or a beverage product.
10. A stabilizing agent comprising particles of a plant material, wherein the particles of the plant material has a particle distribution size in the range from 1 - 100 Mm.
11. The stabilizing agent according to claim 10, wherein the stabilizing agent comprises substantially no lipids(s) originating from the micronized plant material.
12. The stabilizing agent according to any one of claims 10-11, wherein the stabilizing agent comprises substantially no lipid(s).
13. The stabilizing agent according to any one of claims 10-12, wherein the plant material is selected from the group consisting of Coffea and Theobroma cacao.
14. Use of a stabilizing agent according to any one of claims 10-13, for stabilizing the interface between a gas phase and a aqueous phase of a product.
15. Use of a stabilizing agent according to any one of claims 10-14, for stabilizing the interface between a gas phase and a aqueous phase of a dairy product, an ice-cream product, a pet-care product or a beverage product.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP12199588 | 2012-12-28 | ||
EP12199588.0 | 2012-12-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014102234A1 true WO2014102234A1 (en) | 2014-07-03 |
Family
ID=47504734
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2013/077886 WO2014102234A1 (en) | 2012-12-28 | 2013-12-23 | Process of stabilising the interface between two phases |
Country Status (1)
Country | Link |
---|---|
WO (1) | WO2014102234A1 (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4855156A (en) * | 1988-01-26 | 1989-08-08 | The Nutrasweet Company | Frozen dessert |
US20100310746A1 (en) * | 2006-08-17 | 2010-12-09 | Nestec S.A. | Aqueous foams, food products and a method of producing same |
-
2013
- 2013-12-23 WO PCT/EP2013/077886 patent/WO2014102234A1/en active Application Filing
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4855156A (en) * | 1988-01-26 | 1989-08-08 | The Nutrasweet Company | Frozen dessert |
US20100310746A1 (en) * | 2006-08-17 | 2010-12-09 | Nestec S.A. | Aqueous foams, food products and a method of producing same |
Non-Patent Citations (3)
Title |
---|
ERNESTO ILLY ET AL: "Neglected Food Bubbles: The Espresso Coffee Foam", FOOD BIOPHYSICS, vol. 6, no. 3, 30 March 2011 (2011-03-30), pages 335 - 348, XP055064224, ISSN: 1557-1858, DOI: 10.1007/s11483-011-9220-5 * |
HARSHADRAI M. RAWEL ET AL: "Effect of structural changes on foaming properties of soy proteins", FOOD HYDROCOLLOIDS, vol. 8, no. 3-4, August 1994 (1994-08-01), pages 287 - 298, XP055061693, ISSN: 0268-005X, DOI: 10.1016/S0268-005X(09)80341-X * |
MURRAY B S ET AL: "Foam stability: proteins and nanoparticles", CURRENT OPINION IN COLLOID AND INTERFACE SCIENCE, LONDON, GB, vol. 9, no. 5, December 2004 (2004-12-01), pages 314 - 320, XP004668052, ISSN: 1359-0294, DOI: 10.1016/J.COCIS.2004.09.004 * |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
RU2685864C2 (en) | Whitener compositions and use thereof | |
EP1985213B1 (en) | Method for preparation of a creamy milk based beverage from a capsule and kit for such preparation | |
US20240065280A1 (en) | Creamer composition | |
JP2010503388A (en) | Beverage creamer | |
CN106998721B (en) | Plant seed based compositions and uses thereof | |
EP3687298B1 (en) | Vegan potato emulsion | |
CN106163292B (en) | Tea creamer composition and use thereof | |
JP2018500908A (en) | Coffee composition and use thereof | |
CN111601511A (en) | Cream composition optimized for foaming systems | |
WO2014102234A1 (en) | Process of stabilising the interface between two phases | |
US20230147949A1 (en) | Methods of making self-foaming non-dairy creamer compositions | |
JP6841966B1 (en) | Vegetable oil composition and packaged beverage containing it | |
JP6784857B1 (en) | Vegetable oil composition and packaged beverage containing it | |
WO2015030253A1 (en) | Milk-containing coffee beverage with little coffee lipid content | |
JP2015065918A (en) | Coffee drink including coffee lipid | |
WO2016102311A1 (en) | Cocoa compositions and uses thereof | |
TH75937A (en) | A foamy, soluble / dispersible powder composition in cold water. | |
TH68637B (en) | A foamy, soluble / dispersible powder composition in cold water. |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 13811984 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 13811984 Country of ref document: EP Kind code of ref document: A1 |