WO2006104387A1 - Beverages and foodstuffs resistant to light induced flavour changes, processes for making the same, and compositions for imparting such resistance - Google Patents
Beverages and foodstuffs resistant to light induced flavour changes, processes for making the same, and compositions for imparting such resistance Download PDFInfo
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- WO2006104387A1 WO2006104387A1 PCT/NL2006/050064 NL2006050064W WO2006104387A1 WO 2006104387 A1 WO2006104387 A1 WO 2006104387A1 NL 2006050064 W NL2006050064 W NL 2006050064W WO 2006104387 A1 WO2006104387 A1 WO 2006104387A1
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- 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
- A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
- A23L3/34—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals
- A23L3/3454—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of liquids or solids
- A23L3/3463—Organic compounds; Microorganisms; Enzymes
- A23L3/3526—Organic compounds containing nitrogen
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- 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
- A23L2/58—Colouring agents
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- 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
- A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
- A23L3/34—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals
- A23L3/3454—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of liquids or solids
- A23L3/3463—Organic compounds; Microorganisms; Enzymes
- A23L3/3544—Organic compounds containing hetero rings
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- 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
- A23L5/00—Preparation or treatment of foods or foodstuffs, in general; Food or foodstuffs obtained thereby; Materials therefor
- A23L5/40—Colouring or decolouring of foods
- A23L5/41—Retaining or modifying natural colour by use of additives, e.g. optical brighteners
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12C—BEER; PREPARATION OF BEER BY FERMENTATION; PREPARATION OF MALT FOR MAKING BEER; PREPARATION OF HOPS FOR MAKING BEER
- C12C5/00—Other raw materials for the preparation of beer
- C12C5/02—Additives for beer
Definitions
- the present invention relates to beverages and foodstuffs having heightened resistance to light induced flavour changes and to compositions that can be used advantageously as an additive in beverages or foodstuffs to prevent or reduce light induced flavour changes.
- the present light stabilising composition is particularly suitable for use in beverages or foodstuffs that are prone to developing an off- flavour as a result of exposure to light, and especially in such beverages or foodstuffs that are not adequately protected from the detrimental impact of light by their packaging.
- the present invention also includes processes for the manufacture of such compositions, and processes for making the improved beverages and foodstuffs, using the compositions according of the invention.
- Light sensitive flavour changes in beverages and foodstuffs may be inhibited effectively by packaging these beverages or foodstuffs in a material that will not transmit light frequencies that promote off-flavour generating reactions.
- a packaging material that does not exhibit this light shielding quality.
- the composition of the beverage or foodstuff will need to be optimised to achieve sufficient stability against light induced flavour changes. Where this cannot be achieved with the usual constituents of such beverages or foodstuffs, special light stabilising additives may be used.
- additives for the stabilisation of beverages and food products against light induced off-flavour formation. Many of these additives derive their effectiveness from their capability to inhibit off-flavour generating reactions, e.g. by scavenging of one or more of the reactants and/or key intermediates. In addition, additives have been proposed that scavenge the off-flavour causing reaction products (e.g. by forming a non-volatile complex) or that promote degradation of these reaction products to less flavour active products.
- US 5,948,458 describes a method for the prevention of spoilage, rancidity or off-color in a liquid food product containing unsaturated lipids and fats caused by exposure of the liquid food product to ultraviolet light comprising the step of adding to said food product an ultraviolet absorbing effective amount of tricalcium phosphate.
- US 4,389,421 teaches the addition of organic compounds containing 1,8-epoxy groups, such as 1,8-cineole, to prevent or significantly reduce light struck flavour in malt beverages. It is hypothesised therein that the addition of 1,8-epoxy compounds to malt beverages prevents the formation of methyl butenyl mercaptan by preventing cleavage of a five carbon fragment (iso-pentenyl chain) from the iso-hexenoyl side chain of iso- ⁇ -acids, which fragments would otherwise react with the sulfhydryl group forming the iso-pentenyl mercaptan (methyl butenyl mercaptan).
- 1,8-epoxy compounds to malt beverages prevents the formation of methyl butenyl mercaptan by preventing cleavage of a five carbon fragment (iso-pentenyl chain) from the iso-hexenoyl side chain of iso- ⁇ -acids, which fragments would otherwise react
- 1,8-epoxy compounds may prevent formation of methyl butenyl mercaptan by reacting with the iso-pentenyl fragment or by protecting the iso-hexenoyl side chain from fragmenting or by blocking the sulfhydryl group from reacting with the iso-pentenyl fragment.
- compositions containing significant levels of Maillard reaction products can be used advantageously as additives in beverages and foodstuffs to protect these against light induced flavour changes, especially if these compositions have been decoloured before being employed as additives.
- the present invention provides a composition that contains substantial levels of Maillard reaction products, including substituted pyrroles and substituted pyranones (e.g. maltol), which composition is further characterised in that it combines a high absorption of UV-radiation (at 280 nm) with a low absorption of visible light at 560 nm.
- the Maillard reaction also called non-enzymatic browning, is a complex cascade of reactions involving carbonyl and amino compounds, such as reducing sugars and amino acids.
- the reaction between sugars and amino groups was first described in 1908 by two Englishmen, Ling & Malting, who considered colour formation in beer.
- 1912 Louis-Camille Maillard described a browning reaction between reducing sugars and amino groups.
- Maillard was the first to realise the significance of the reaction in areas as diverse as plant pathology, geology and medicine.
- the Maillard reaction plays a central role in the development of colour, aroma, flavour, texture and nutritional value of cooked and processed foods.
- compositions containing significant amounts of Maillard reaction products are well-known in the art, particularly in the field of flavourings. These known compositions typically exhibit an intense brown colour due to the presence of so called melanoidins, i.e. brown nitrogenous polymers and copolymers that are end products of the Maillard reaction. Furthermore, these known compositions typically exhibit an absorption ratio A280/560 well below 100. It is an essential aspect of the light stabilising composition of the present invention that the level of melanoidins in said composition has been substantially reduced whilst retaining the low molecular Maillard reaction products that are believed to prevent light induced flavour changes. Thus, the present composition typically has an absorption ratio A280/560 of at least 100.
- the Maillard reaction products contained in the present composition are capable of absorbing UV-radiation.
- Maltol for instance has an UV absorption maximum at 274 nm and 3,5-dihyroxy-6-methyl-2,3-dihydropyranone at 296 nm.
- 2-Acetylpyrrol has an UV absorption maximum at 290 nm and both pyrrole-2-aldehyde and 5- hydroxymethyl-l-(3-methyl-butyl)-lH-pyrrole-2-carbaldehyde have an UV-absorption maximum at 293 nm.
- one aspect of the present invention is concerned with a composition containing
- R 1 represents an optionally oxygenated hydrocarbyl comprising 1-6 carbon atoms
- R 2 represents hydrogen or an optionally oxygenated hydrocarbyl comprising 1-6 carbon atoms
- R 3 represents hydrogen or a linear or branched Ci -C 5 alkyl residue
- the formation of the Maillard reactions products B is dependent on the reaction conditions employed. It is feasible to manipulate the reaction conditions in such a way that large quantities of maltol are formed, but only minute amounts of DDMP and vice versa. Both compositions containing significant levels of maltol and compositions containing significant levels of DDMP can advantageously be employed in accordance with the invention.
- An important characteristic of the light stabilising composition according to the invention is its relatively high absorption of UV light in the range of 250-400 nm and especially in the range of 250-350 nm.
- the absorbance at 280 nm i.e. A 2 so, is a good measure for this particular quality.
- the present composition exhibits an A 2 so that exceeds 0.05, preferably exceeds 0.1 and most preferably exceeds 0.3.
- the A 2 so is determined relative to %solids as described herein below under "Colour intensity", except that the absorbance is measured at 280 nm instead of 610 nm.
- the light stabilising composition combines a relatively high absorption of UV light, particularly at wavelengths in the range of 250 to 400 nm, with a relatively low absorption of visible light, as demonstrated by a ratio of the light absorption at wavelengths 280 nm and 560 nm (A 2 so/56o) of at least 100, preferably of at least 200.
- the present composition has an absorption ratio A 2 so/56o of at least
- wavelength refers to a wavelength of light, unless indicated otherwise. Whenever reference is made in here to "absorption”, unless indicated otherwise, this refers to absorption of light.
- the present composition is particularly effective in imparting light stabilising properties if it contains substituted pyrroles in a concentration of at least 50 ⁇ g/kg, more preferably at least 250 ⁇ g/kg, and most preferably at least 1000 ⁇ g/kg.
- concentration of maltol and/or DDMP in the present composition advantageously is 100 mg/kg, preferably at least 200 mg/kg, more preferably at least 500 mg/kg and most preferably at least 2,000 mg/kg.
- Other Maillard reaction product that may be found in significant amount in the present composition include substituted furans represented by the following formula:
- R 4 represents an optionally oxygenated hydrocarbyl comprising 1-6 carbon atoms and R 5 represents hydrogen.
- concentration of said substituted furans in the present composition is at least 100 mg/kg, preferably at least 150 mg/kg and most preferably at least 250 mg/kg.
- the substituted furan represents 5 -hydroxymethyl- furfural.
- the substituted pyrroles are represented by the above formula I, wherein R 1 represents an oxygenated hydrocarbyl comprising 1-6, preferably 1-4 carbon atoms. Even more preferably, R 1 represents an oxo-substituted hydrocarbyl residue comprising 1-3, preferably 1-2 carbon atoms. According to a yet more preferred embodiment, R 1 represents -(CO)CH 3 or -CHO. According to another preferred embodiment, R 2 in formula I represents hydrogen,
- Ci -C 2 alkyl or an oxygenated hydrocarbyl comprising 1-2 carbon atoms More preferably, R 2 represents hydrogen, methyl, CH 2 OH or CHO. Even more preferably, R 2 represents hydrogen, methyl or CH 2 OH. According to one particularly preferred embodiment, R 2 represents hydrogen. According to another particularly preferred embodiemtn, R" represents CH 2 OH.
- R 3 preferably represents hydrogen, methyl or -CH 2 CH 2 CH(CH 3 )CH 3 According to one particularly preferred embodiment, R 3 represents hydrogen. According to another particularly preferred embodiment, R 3 represents -CH 2 CH 2 CH(CH 3 )CH 3 . According to yet another preferred embodiment, R 3 represents methyl.
- the substituted pyrrole is selected from the group consisting of 2-acetylpyrrole, pyrrole-2-carboxaldehyde, methyl-pyrrole-2-carboxaldehyde, 5-hydroxymethyl- 1 -(3 -methyl-butyl)- lH-pyrrole-2- carbaldehyde and combinations thereof.
- the substituted pyrrole is 2-acetylpyrrole.
- the substituted pyrrole is 5-hydroxymethyl- l-(3-methyl-butyl)-lH-pyrrole-2- carbaldehyde.
- the present composition contains at least
- DDMP 2,3-dihydro- 3,5-dihydroxy-6-methyl-4H-pyran-4-one
- the light-stabilising composition contains at least 100 mg, preferably at least 500 mg, more preferably at least 1,000 mg and most preferably at least 2,000 mg of maltol per kg of dry matter.
- the amount of 5-hydroxymethyl- l-(3-methyl-butyl)-lH-pyrrole-2-carbaldehyde contained in the present light stabilising composition preferably is at least 1 ⁇ g, more preferably at least 3 ⁇ g, even more preferably at least 6 ⁇ g and most preferably at least 10 ⁇ g per kg of dry matter.
- the inventors have observed that 5-hydroxymethyl-l-(3- methyl-butyl)-lH-pyrrole-2-carbaldehyde is particularly effective in inhibiting the formation of sunstruck off- flavour.
- the light stabilising properties of the present composition are particularly appreciated in case the composition comprises both the substituted furans and maltol/DDMP in the indicated amounts.
- the present light stabilising composition is suitably prepared starting from a reaction mixture that contains reducing sugar. Since normally some of the reducing sugar will remain unreacted, the present composition typically contains at least 0.1% of reducing sugars by weight of dry matter. Preferably, the present composition contains at least 0.5%, more preferably at least 1% and most preferably at least 3% of reducing sugars by weight of dry matter.
- the present composition usually also contains a certain amount of 1 -amino- 1- deoxy-2-ketoses (Amadori rearrangement products). These substances are formed during the initial stages of the Maillard reaction. Typically, the present composition contains at least 10 ⁇ g per kg of dry matter of 1 -amino- l-deoxy-2-ketoses. Most preferably, the compositions contains at least 100 ⁇ g per kg of dry matter of ketoses
- the present composition is suitable for stabilising a wide variety of beverages and food products against light induced flavour changes. Best results, however, are obtained in water containing food products, particularly water-continuous food products.
- the present stabilising composition is essentially completely water soluble.
- the present composition is essentially completely water soluble up to a dry solids content of at least 0.01 wt.%, more preferably up to a dry solids content of at least 0.05 wt.%, most preferably up to 0.1 wt.%.
- the present light stabilising composition preferably contains not more than minor amounts of the melanoidins.
- Melanoidins are relatively large molecules that can suitably be removed after completion of the Maillard reaction by means of filtration or another separation technique that enables separation on the basis of molecular weight, size, hydrophobicity or charge.
- the resulting composition typically contains less than 30%, preferably less than 20%, more preferably less than 15%, even more preferably less than 10% and most preferably less than 5%, by weight of dry matter, of components having a molecular weight in excess of 30 kDa.
- the aforementioned amounts relate to the components having a molecular weight in excess of 10 kDa, even more particularly in excess of 5 kDa and most particularly in excess of 1 kDa.
- the amount of components with a molecular weight in excess of 30 kDa contained in the present composition is determined by passing an aqueous solution of said composition over a Millipore® YM30 filter. Millipore® YMlO and YMl filters may be used to determine contents of components with a molecular weight in excess of 10 kDa and 1 kDa respectively. It is noted that different techniques for determining the content of high molecular components may yield different results.
- the present light stabilising composition has a colour intensity at 610 nm that does not exceed 0.024, preferably does not exceed 0.01 as calculated herein. Even more preferably, said colour intensity does not exceed 0.003 as calculated herein.
- a suitable method for determining the colour intensity at 610 nm is described below.
- the present composition is advantageously provided in a relatively concentrated form, e.g. with a solids content of at least 10 wt.%. More preferably, the solids content is at least 20 wt.%, most preferably at least 30 wt.%.
- the present composition may take the form of a liquid, a syrup, a paste, a powder, granules or tablets.
- the present composition contains less than 80 wt.%, more preferably less than 70 wt.% water.
- the light stabilising composition according to the invention may suitably include additives such as anti-oxidants, emulsifiers and carrier materials.
- the present composition does not contain any ingredients that are not considered “natural”, i.e. that need to be labelled as “artificial", “synthetic” or “chemical”.
- the present composition preferably contains less than 10%, more preferably less than 5% caramel or decoloured caramel, by weight of dry matter.
- the present composition preferably contains less than 0.3%, more preferably less than 0.1% by weight of dry matter of a fructosazine selected from the group consisting of 2,5-deoxyfructosazine, 2,6-deoxyfructosazine, 2,5-fructosazine, 2,6- fructosazine and combinations thereof.
- a fructosazine selected from the group consisting of 2,5-deoxyfructosazine, 2,6-deoxyfructosazine, 2,5-fructosazine, 2,6- fructosazine and combinations thereof.
- the present light stabilising composition contains at least 30%, preferably at least 50% cereal derived matter by weight of dry matter.
- the cereal derived material is derived from a cereal selected from the group of barley, wheat, rice, rye, maize, sorghum and combinations thereof. Even more preferably the material is derived from cereal selected from the group of barley, wheat, rye and combinations thereof, barley being most preferred.
- the present composition is introduced into the beverage or foodstuff in an amount of at least 0.01 wt.%, preferably of at least 0.02 wt.% and more preferably of at least 0.03 wt.%, calculated on the basis of the amount of dry matter introduced.
- the amount introduced will not exceed 1 wt.%, preferably it will not exceed 0.5 wt.%, more preferably it will not exceed 0.3 wt.%, again calculated on the basis of the amount of dry matter introduced.
- the present light stabilising composition is added to beer, preferably before fermentation.
- the composition may be added prior to, during or after wort boiling.
- the composition is added during or after wort boiling.
- the present composition is particularly suitable for preventing light induced flavour changes in beverages and foodstuffs that contain significant quantities of riboflavin, which substance can act as a photo-initiator.
- the composition is particularly advantageously used in beverages and foodstuffs that contain at least 10 ⁇ g/kg (ppb) riboflavin, more preferably at least 50 ⁇ g/kg riboflavin and most preferably at least 100 ⁇ g/kg riboflavin.
- the benefits of the present light stabilising composition are particularly pronounced if said composition is used to stabilise bottled beverages.
- bottled beverage encompasses beverages in glass containers (e.g. bottles, jars etc.) as well as beverages in light-transparent plastics, such as plastics based on polyethylene (e.g. polyethylene (PE), polyethylene teraphthalate (PET) and/or polyethylene naphthalate PEN)); polycarbonate; PVC; and/or polypropylene.
- the present light stabilising composition is used as an additive, particularly a light stabilising additive, in beverages bottled in green, clear (e.g. flint) or blue glass. Most preferably, it is used as an additive in beverages bottled in green or clear glass.
- the present invention encompasses the use of the light stabilising composition in a wide variety of beverages, including beer, soft drinks, liquor, juices, dairy drinks etc.
- the composition is used to prevent or reduce light induced flavour changes in malt beverages, such as beer, ale, malt liquor, porter, shandy, and others which are made from or contain fermented extracts of malt.
- the present light stabilising composition is particularly advantageously employed to improve light stability of beer, more preferably of relatively pale beer, e.g. beer with an EBC colour value of less than 25, more preferably of less than 15, most preferably of less than 12. A suitable method for determining the EBC colour value is described below.
- sunstruck formation in beer is promoted particularly strongly by light with a wavelength of 250-550 nm. In general it can be said, the shorter the wavelength the higher the rate at which sunstruck flavour is formed.
- volatile sulphur-containing compounds are responsible for the sunstruck flavour. These sulphur-containing compounds are thought to be formed at least in part by reaction of other sulphur-containing compounds with photochemically degraded hop components in the beverage. Extremely small quantities of these sulphur compounds are sufficient to impart a sunstruck flavour to a beverage and to render it less acceptable for the consumer (cf. for example Kirk-Othmer, Encyclopedia of Chemical Technology, 4 th Ed., Vol. 4, pages 22 - 63, 1992 and US Patent Application No. 2002/0106422).
- Riboflavin can act as a photo initiator in a beverage and is present in beer in significant quantities. Riboflavin in beer emanates mainly from the malt used therein. To a lesser extent also hops and the action of yeast during the fermentation can contribute to the riboflavin content of beer (cf. for example "Kinetics of Riboflavin Production by Brewers Yeast" by Tamer et al, pages 754-756 Enzyme Microb. Technology, 1988, Vol. 10, December).
- the present light stabilising composition is particularly effective in preventing the development of sunstruck flavour in beer, especially in beer that is stored in a container that is transparent to light, particularly a container that is transparent to light with a wavelength in the range of 330-360 nm, more particularly a container that is transparent to a wider spectrum of light within the range of 320-400 nm.
- 3-MBT 3-methyl-2-butene-l -thiol
- the sensory threshold value for this substance in water is only a few ng/kg (ppt).
- 3-MBT is believed to be formed by the reaction between light excited riboflavin (largely originating from the malt component) and the bittering principles in beer, the iso- ⁇ -acids, which originate mainly from hop.
- the use of the present light stabilising composition in an effective amount to inhibit light induced flavour changes is evident by a reduction in the rate of 3-MBT formation by at least 30%, preferably by at least 50%, more preferably at least 60%, even more preferably at least 70% and most preferably by at least 80%.
- the present invention also provide a method of manufacturing a beverage or a foodstuff that is resistant to light induced flavour changes, which method comprises introducing the light stabilising composition as described above.
- the aforementioned method comprises introducing into the beverage or foodstuff the light stabilising composition in an amount of between 0.01 and 5 wt.%, preferably of between 0.02 and 3 wt.%, calculated on the basis of the amount of dry matter introduced.
- the present invention encompasses a beverage or foodstuff that is resistant to light induced flavour changes and that has been obtained by such a method.
- Another aspect of the invention relates to a hop containing beverage exhibiting an
- Stability against light induced flavour changes is particularly effectively realised if the hop containing beverage contains at least 1 ⁇ g/1, more preferably at least 5 ⁇ g/1 and most preferably at least 20 ⁇ g/1 of substituted pyrroles.
- the said beverage preferably contains at least 1 mg/1, more preferably at least 3 mg/1 and most preferably at least 6 mg/1 maltol and/or DDMP.
- the present hop containing beverage comprises at least 5 mg/1, preferably at least 10 mg/1, more preferably at least 20 mg/1 of maltol.
- the hop containing beverage comprises at least 40 mg/1, preferably at least 60 mg/1 of 2,3-dihydro-3,5-dihydroxy-6- methyl-4H-pyran-4-one.
- the hop containing beverage comprises at least 5 ng/1, preferably at least 10 ng/1, more preferably at least 25 ng/1 of 5-hydroxymethyl- 1 -(3 -methyl-butyl)- lH-pyrrole-2-carbaldehyde.
- concentrations of maltol, 2,3-dihydro-3,5-dihydroxy-6-methyl-4H-pyran-4- one and/or 5-hydroxymethyl- l-(3-methyl-butyl)-l//-pyrrole-2-carbaldehyde in the beverages and compositions according to the present invention may suitably be determined by means of the analytical methods described below under the heading "Methods”.
- the hop containing beverage is a fermented cereal based beverage. More preferably, the hop containing beverage is beer, malt liquor, porter, shandy, or another beverage made from or containing extracts of hop. Even more preferably, the beverage is beer, most preferably lager beer. In a particularly preferred embodiment, the hop containing beverage has a yellow or yellowish colour, i.e. it does not have a brownish colour associated with the use of significant amounts of colouring caramel.
- the benefits of the present light stabilising composition will be particularly apparent in light sensitive products that have been packaged in containers that are transparent to light with a wavelength of less than 500 nm, especially less than 400 nm, e.g. green, clear and blue glass. Consequently, in a preferred embodiment, the present hop containing beverages is bottled in green, clear or blue glass, especially in clear or green glass.
- Yet another aspect of the present invention relates to a process for the manufacture of a composition that may suitably be used as an additive to improve the stability of beverages or foodstuffs against light induced flavour changes, said process comprising: • providing a Maillard reaction mixture containing: c 0.3-35 wt.
- the Maillard reaction mixture contains at least 50% by weight of dry matter of brewing adjuncts, including at least 30% by weight of dry matter, preferably at least 50% by weight of dry matter of cereal selected from the group of barley, wheat, rice, rye, maize, sorghum and combinations thereof.
- the combination of amino compounds and carbohydrates constitutes at least 60 wt.% of the dry matter contained in the Maillard reaction mixture.
- both the amino compounds and carbohydrates are cereal derived.
- the heating conditions employed to incite Maillard reactions preferably meet the following requirement: 4,000 ⁇ P x 1.5 ( ⁇ - 70)/10) ⁇ 2,000,000; P being expressed in seconds and T in 0 C. It is an essential aspect of the present process that the heat-induced Maillard reactions results in a significant browning of the reaction product.
- the reaction product obtained after heat treatment when dissolved in water at a dry solids content of 0.1 wt.% exhibits an absorption at 560 nm of at least 0.3, more preferably of at least 1.0..
- the reaction product obtained after heat treatment is decolourised to increase its absorption ratio A 28 o/56o by at least 300%.
- the present process will usually produce a considerable yield in the form of the present light stabilising composition.
- the yield of the present process is in the range of 5-90%, especially in the range of 10-80%.
- the present process yields a light stabilising composition in accordance with the present invention in a yield of at least 20%.
- the solids content of a material is determined by drying a sample upon a carrier composed of pure quartz sand that passes a No. 40 but not a No. 60 sieve and has been prepared by digestion with hydrochloric acid, washed acid-free, dried and ignited.
- Colour Intensity of a certain material is defined as the absorbance of an 0.1% (w/v) solution of solids in water in a 1 cm quartz cell at 610 nm. If necessary, pH of the solution is adjusted to between 4 and 7.
- Absorbance Ratio of a material is defined as the absorbance of an 0.1% (w/v) solution of solids in water at 280 nm divided by the absorbance of the same solution at 560 nm. If necessary, pH of the solution is adjusted to between 4 and 7. Procedure
- a suitable spectrophotometer is one equipped with a monochromator to provide a bandwidth of 2 nm or less and of such quality that the stray-light characteristic is 0.5% or less.
- EBC EBC recommended method (European Brewery Convention, Anafytica, 1987), whereby absorbance of light is measured at 430 nm in a 1 cm quartz cuvette, against water as the reference. The absorbance value measured is multiplied by an empirically derived factor of 25, to give a colour value in terms of EBC colour units.
- EBC A430 x 25.
- Chromatographic conditions - Gradient: 90% A, O'-17'; 40% A, 25'-30'; 90% A 35'-45'.
- the twister is then desorbed in a Gerstel TDU (Thermo Desorption Unit), programmed at 40 0 C initial temperature (0.50minutes), then at 240°C/min to 260 0 C.
- the CIS Cooled Injection System
- the CIS was set at -20 0 C, and on injection heated to 280° C at 127sec.
- the GC system consists of an Agilent 6890A GC, equipped with a Chrompack capillary column CP-SiI 8 CB Low Bleed/MS, 50m, 0.25mmID and 0.25 ⁇ m film thickness.
- the oven is operated at 50 0 C for 2 minutes, and then raised at 10°C/min to 300 0 C.
- Helium is used as carrier gas, at 1.5 mL/min, constant flow.
- An Agilent 5973 Mass Selective Detector is used for detection, operated at EI 7OeV, scanning from 33 to 300 m/z. Maltol, eluting at 11.5 min, is quantified comparing its signal at 126 m/z with an earlier recorded calibration curve.
- Example 1 Light stabilizing compositions according to the present invention were prepared from a range of crystal barley malts. These crystal barley malts were prepared on a pilot scale, applying the heating and roasting conditions recited in Table 1.
- light stabilizing compositions were prepared from chocolate rye, caramel rye and caramel wheat malts that were provided by Weyermann specialty malting company (Bamberg, Germany).
- the aforementioned malts as well as a conventional production malt were further prepared by grinding 100 g of the malt sample with 300 ml water.
- the light malt was employed as a reference sample.
- the resulting suspensions were centrifuged and paper filtered.
- the supernatants were acidified to pH 4.2 (0.3M HCl).
- the resulting filtrates were ultrafiltered using a Millipore Amicon® series 8000 (model 8400, 400 mL) stirred cell, equipped with a Millipore® YMlO regenerated cellulose ultrafiltration membrane (1,000 nominal molecular weight limit, diameter: 76 mm, cat. no. 13642).
- the ultrafiltrates so obtained were concentrated by rotary evaporation (typically 15 mbar pressure, 40 0 C) to a solution containing 5 to 32% dry wt. solids.
- Example 2 The light stabilising properties of the treated malts described in example 1 were compared to the ultra-filtered reference malt by adding the treated malts and the reference to Heineken® pilsner (the Netherlands) in dosage of 20 g/L (dry weight). The composition was added to freshly brewed beer, which was subsequently bottled in a 300 mL green glass bottle (Heineken® export, BSN or Rexam bottle 35.5 EB-5 GR). Bottling was performed in such a way that entrapment of atmospheric oxygen in the beer and headspace was minimised.
- the bottles containing the light stabilising composition in the indicated amounts as well as a bottle with a control sample were exposed to simulated sunlight by a Xenon lamp (Atlas Material Testing Technology).
- the light dose was 2700 KJ/m 2 during 60 minutes.
- the concentration of MBT in the samples can suitably be determined by means of the method described by Hughes et al. (Hughes P. S., Burke S. and Meacham A. E. (1997) "Aspects of the lightstruck character of beer”. Institute of Brewing, Proceedings of the 6th Central and South Africa Section, pp. 123-128). Analyses of the aforementioned samples showed that the MBT concentration in the samples containing the light stabilising composition was significantly lower than the MBT concentration found in the reference sample as shown in Table 4. Table 4
- Example 3 The extracts (5ml) obtained in Example 3 were applied to 37ml Heineken export, and illuminated for 12 minutes, in clear glass vials. MBT-concentrations were determined and checked against a 37ml Heineken+5ml water reference. In addition, LAB colour measurements were conducted. The results of these analyses are depicted in Table 6.
- Rexam bottle 35.5 EB-5 GR Bottling was performed in such a way that entrapment of atmospheric oxygen in the beer and headspace was minimised.
- the bottles containing the light stabilising composition in the indicated amounts as well as a bottle with a control sample were exposed to simulated sunlight by a Xenon lamp (Atlas Material Testing Technology). The light dose was 2700 KJ/m 2 during 12 minutes.
- the concentration of MBT in the samples was determined by means of the method described by Hughes et al. (Hughes P. S., Burke S. and Meacham A. E. (1997) "Aspects of the lightstruck character of beer". Institute of Brewing, Proceedings of the 6th Central and South Africa Section, pp. 123-128).
- the levels of MBT found in the test samples were compared with the MBT levels found in the control sample. The results are depicted in Table 7.
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PL06716697T PL1865796T3 (en) | 2005-03-29 | 2006-03-28 | Beverages and foodstuffs resistant to light induced flavour changes, processes for making the same, and compositions for imparting such resistance |
AU2006229547A AU2006229547B2 (en) | 2005-03-29 | 2006-03-28 | Beverages and foodstuffs resistant to light induced flavour changes, processes for making the same, and compositions for imparting such resistance |
MX2007012028A MX2007012028A (en) | 2005-03-29 | 2006-03-28 | Beverages and foodstuffs resistant to light induced flavour changes, processes for making the same, and compositions for imparting such resistance. |
US11/910,101 US9554592B2 (en) | 2005-03-29 | 2006-03-28 | Beverages and foodstuffs resistant to light induced flavour changes, processes for making the same, and compositions for imparting such resistance |
JP2008503979A JP5069217B2 (en) | 2005-03-29 | 2006-03-28 | Beverages or foods that are resistant to light-induced flavor changes, methods for their production, and compositions that impart resistance |
CA2602082A CA2602082C (en) | 2005-03-29 | 2006-03-28 | Beverages and foodstuffs resistant to light induced flavour changes, processes for making the same, and compositions for imparting such resistance |
DK06716697.5T DK1865796T3 (en) | 2005-03-29 | 2006-03-28 | DRINKS AND FOODS RESISTANT TO LIGHT-INDUCED TASTING CHANGES, PROCEDURES FOR PRODUCING THE SAME, AND COMPOSITIONS TO PROVIDE SUCH RESISTANCE |
KR1020077024877A KR101334292B1 (en) | 2005-03-29 | 2006-03-28 | Beverages and foodstuffs resistant to light induced flavour changes, processes for making the same, and compositions for imparting such resistance |
AP2007004201A AP2442A (en) | 2005-03-29 | 2006-03-28 | Beverages and foodstuffs resistant to light induced flavour changes, processes for making the same, and compositions for imparting such resistance |
NZ561926A NZ561926A (en) | 2005-03-29 | 2006-03-28 | Beverages and foodstuffs resistant to light induced flavour changes, processes for making the same, and compositions for imparting such resistance |
EP06716697A EP1865796B1 (en) | 2005-03-29 | 2006-03-28 | Beverages and foodstuffs resistant to light induced flavour changes, processes for making the same, and compositions for imparting such resistance |
BRPI0609782-0A BRPI0609782B1 (en) | 2005-03-29 | 2006-03-28 | Composition, use thereof, brewing method, beer, hop-containing beverage, and process for preparing a composition |
EA200702099A EA011517B1 (en) | 2005-03-29 | 2006-03-28 | Beverages and foodstuffs resistant to light induced flavour changes, processes for making the same, and compositions for imparting such changes |
ES06716697T ES2387399T3 (en) | 2005-03-29 | 2006-03-28 | Beverages and food products resistant to changes in flavor induced by light, processes for the manufacture of these and compositions for imparting said resistance |
CN2006800187613A CN101184405B (en) | 2005-03-29 | 2006-03-28 | Beverages and foodstuffs resistant to light induced flavour changes, processes for making the same, and compositions for imparting such resistance |
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EGNA2007001023 EG24404A (en) | 2005-03-29 | 2007-09-27 | Beverages and foodstuffs resistant to light induced flavour changes, processes for making the same and compositions for imparting such resistance |
NO20074917A NO334454B1 (en) | 2005-03-29 | 2007-09-27 | Beverages and foodstuffs that are resistant to light-induced taste changes, processes for producing the same, and materials for effecting such resistance |
HK08104213.5A HK1109839A1 (en) | 2005-03-29 | 2008-04-15 | Beverages and foodstuffs resistant to light induced flavour changes, processes for making the same, and compositions for imparting such resistance |
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EP (1) | EP1865796B1 (en) |
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EP2143719A1 (en) * | 2007-03-30 | 2010-01-13 | Suntory Holdings Limited | Pharmaceutical composition, food or beverage capable of enhancing sympathetic nerve activity |
WO2011054838A2 (en) | 2009-11-03 | 2011-05-12 | Carlsberg Breweries A/S | Eliminating the generation of mbt in a hops based beverage |
WO2011054839A2 (en) | 2009-11-03 | 2011-05-12 | Carlsberg Breweries A/S | Preventing the generation of mbt in a hops based beverage |
WO2016038216A1 (en) * | 2014-09-12 | 2016-03-17 | Ifast Nv | Method for producing beers stored, offered, served or consumed in uv-vis-transmittant bottles with reduced sensitivity, in particular no sensitivity, to skunky thiol flavor degradation upon exposure to sunlight or other sources of uv and/or vis light, and beers stored, offered, served or consumed in uv-vis-transmittant bottles with reduced sensitivity, in particular no sensitivity, to skunky thiol flavor degradation upon exposure to sunlight or other sources of uv and/or vis light |
WO2017134260A1 (en) * | 2016-02-05 | 2017-08-10 | Heineken Supply Chain B.V. | Light-stable hop extract |
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JP2019062784A (en) * | 2017-09-29 | 2019-04-25 | 株式会社 伊藤園 | Container packed beverage, manufacturing method therefor and nasty smell generation inhibition method thereof |
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2006
- 2006-03-28 PT PT06716697T patent/PT1865796E/en unknown
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