WO2009019088A1 - Natural stabiliser system for frozen dessert - Google Patents

Natural stabiliser system for frozen dessert Download PDF

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Publication number
WO2009019088A1
WO2009019088A1 PCT/EP2008/058560 EP2008058560W WO2009019088A1 WO 2009019088 A1 WO2009019088 A1 WO 2009019088A1 EP 2008058560 W EP2008058560 W EP 2008058560W WO 2009019088 A1 WO2009019088 A1 WO 2009019088A1
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WO
WIPO (PCT)
Prior art keywords
frozen confectionery
fibres
frozen
rice starch
stabiliser system
Prior art date
Application number
PCT/EP2008/058560
Other languages
French (fr)
Inventor
Maylis Quessette
Wilhelm Karl Silberzahn
Original Assignee
Nestec S.A.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Priority to JP2010518589A priority Critical patent/JP2010535018A/en
Priority to AU2008285827A priority patent/AU2008285827A1/en
Priority to RU2010107614/13A priority patent/RU2483564C2/en
Priority to CA2691433A priority patent/CA2691433C/en
Priority to BRPI0815010-9A2A priority patent/BRPI0815010A2/en
Application filed by Nestec S.A. filed Critical Nestec S.A.
Priority to US12/671,412 priority patent/US8956680B2/en
Priority to NZ582946A priority patent/NZ582946A/en
Priority to CN200880101051A priority patent/CN101765374A/en
Priority to EP08774687.1A priority patent/EP2185003B1/en
Priority to ES08774687.1T priority patent/ES2608977T3/en
Publication of WO2009019088A1 publication Critical patent/WO2009019088A1/en
Priority to IL202525A priority patent/IL202525A/en
Priority to ZA2010/01520A priority patent/ZA201001520B/en

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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
    • 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
    • A23G9/34—Frozen sweets, e.g. ice confectionery, ice-cream; Mixtures therefor characterised by the composition containing organic or inorganic compounds characterised by carbohydrates used, e.g. polysaccharides
    • 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
    • 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

Definitions

  • the present invention relates to stabiliser systems which may be used in the manufacture of frozen dessert which comprise native rice starch and fibres from vegetables, fruits or mixtures thereof. It also relates to a method for manufacturing a frozen confectionery using a stabiliser system that contains only natural ingredients. The invention, in another aspect, also concerns the frozen confectionery products thus produced.
  • stabilisers are generally used for functional purposes such as improvement of smoothness, prevention of ice crystal formation in storage, improvement of handling properties, while the use of emulsifiers results in smaller air cells which are evenly distributed in the product.
  • WO2005/115163 describes the use of vegetable fibres which are more effective to maintain the compactness and structural resistance of similar products that use stabilisers like guar, carob, alginates, carrageenan and others .
  • EP 1180330 Al proposes to replace the traditional use of expensive stabilising agents without compromising the organoleptic properties of frozen confectionery.
  • a frozen confectionery comprising fat, a sweetening agent, milk solids non fat, water, starch such that the total amount of starch and milk solids non fat is between 2.5 and 18% and that the weight ratio of starch to milk solids non fat is between 0.03 and 1.5.
  • Starch in particular rice starch and/or oat starch, is also present in the composition of WO92/13465 as a fat substitute in frozen desserts.
  • the desserts are said to have an excellent texture, smoothness and mouth feel.
  • CN1403008 also discloses the use of rice starch as fat substitute
  • JP3209714 discloses the preparation of a liquid base for ice cream also comprising rice starch.
  • EP 1400176 Al also describes frozen aerated products which have no additional stabilisers or emulsifiers and have an overrun of 10-250%, a pH, when melted, of 3.5 to 5.2, and which comprise 0-20% fat, 0.25 to 20% milk solids not fat, 0.05 to 1.5% soluble dietary fibre and 0.1 to 5% insoluble dietary fibres.
  • WO 9115517 relates to low-cost crude pectin-containing vegetable product prepared from agricultural waste products which can be useful as a stabilizer for frozen desserts.
  • the raw material may be used directly as it is obtained from the fruit or vegetable processing plants.
  • citrus fruit peel, apple pomace and sugar beet pulp are citrus fruit peel, apple pomace and sugar beet pulp.
  • Stabiliser systems are widely available on the market. These generally include gums, esters of mono-, diglycerides, etc. and are thus mostly not considered as fully natural products.
  • GB 2359727 also describes an emulsifier composition which can be used in ice creams and which comprises an emulsifier which encapsulates a disintegration improver, such as a fibre or a hydrocolloid.
  • the present invention provides a stabiliser system for use in frozen confectionery, characterised in that it comprises native rice starch, egg yolk as a natural emulsifier and fibres from vegetables, fruits or mixtures thereof.
  • a stabiliser system for use in frozen confectionery, characterised in that it comprises native rice starch, egg yolk as a natural emulsifier and fibres from vegetables, fruits or mixtures thereof.
  • a method for the manufacture of a frozen confectionery comprising the steps of: a. Blending frozen confectionery ingredients with a stabiliser system comprising native rice starch, egg yolk as a natural emulsifier and fibres from vegetables, fruits or mixtures thereof, b. Pasteurising and homogenising the mix, c. Freezing the mix as well as a product obtainable by said method are provided by the present invention.
  • the homogenising stage is performed in at least one stage at a pressure of 150-250bars, preferably 180-250bars, more preferably 200-230bars.
  • a frozen confectionery product characterised in that it comprises rice starch, egg yolk as a natural emulsifier and expanded fibres from vegetables, fruits or mixtures thereof is also encompassed by the present invention.
  • stabiliser system for use in frozen confectionery.
  • stabiliser system is to be understood a mixture of ingredients, which contributes to the stability of the frozen product with respect to ice P35100EP Nestec S.A. /NO 8422/WO
  • the stabiliser system may comprise any ingredients which are of structural importance to the frozen confectionery.
  • This stabiliser system may thus comprise ingredients which render the texture creamier, or emulsifying ingredients, which overall contribute to the advantageous textural, structural, organoleptic properties of the product.
  • ingredients of natural origin include ingredients which come directly from the field, the animals etc. They may also include ingredients which are the result of a physical or microbiological/enzymatic process (e.g. extraction, fermentation etc.) . However, they do not include ingredients which are the result of a chemical modification process.
  • the stabiliser system is characterised in that it comprises native rice starch, egg yolk as a natural emulsifier and fibres from vegetables, fruits or a mixture thereof.
  • fruit fibres is to be understood fibres obtainable by any fruit or mixtures of fruits. They may be provided in the form of pieces of the fruit itself, fruit extracts, fruit juice, fruit puree, fruit concentrate etc. Suitable fruits include apple, lemon, banana, blackberry, blackcurrant, blueberry, cherry, pomegranate, pumpkin, cranberry, gooseberry, grapes, guava, kiwi, mango, orange, papaya, passion fruit, peach, pear, pineapple, plums, raspberry, redcurrant, strawberry, tomato, etc. P35100EP Nestec S.A. /NO 8422/WO
  • fibres obtainable by any plant source other than a fruit. These may include beans, Brussels sprouts, carrot, cauliflower, celery, onions, sugar beet, potato, cabbage, bamboo etc.
  • the fibres used in the present invention are citrus fibres.
  • native rice starch rice starch which has not undergone any chemical or physical modifications.
  • native rice starch has been shown to give better results than other starches (e.g. tapioca starch or maize starch) in terms of global texture and creaminess.
  • the stabiliser system presents the advantage that it does not contain any artificial or unnatural components .
  • the stabiliser system further comprises egg yolk as a natural emulsifier.
  • emulsifiers compounds which confer to the finished product a smoother texture and stiffer body, which reduce the whipping time.
  • the presence of emulsifiers results in air cells that are smaller and more P35100EP Nestec S.A. /NO 8422/WO
  • the stabiliser system comprises native rice starch, citrus fibres and egg yolk only.
  • the stabiliser system of the invention may be used in the manufacture of frozen confectionery.
  • it may be used in the same way as traditional stabiliser/emulsifier systems in the manufacture of ice cream, mellorine etc. It presents not only the advantage of being particularly effective, but also the advantage that it contains only natural ingredients and can be used in green label, all natural frozen confectionery.
  • the invention further relates to a method for the manufacture of a frozen confectionery comprising, in a first stage, the step of blending frozen confectionery ingredients with a stabiliser system comprising native rice starch, egg yolk as a natural emulsifier and fibres from vegetables, fruits or mixtures thereof.
  • a stabiliser system comprising native rice starch, egg yolk as a natural emulsifier and fibres from vegetables, fruits or mixtures thereof.
  • the fibres in the stabiliser system are citrus fibres.
  • Frozen confectionery ingredients are typical ingredients such as any of fat, sugars, milk solids non-fat and combinations thereof.
  • fat is present in an amount of 5-20%, preferably 8-15%, more preferably 10- 13%.
  • homogenisation is carried out in at least one stage at a pressure of 150-250bars, preferably 180-250bars, more preferably 200-230bars.
  • the homogenisation is carried out in two stages, the first stage being at the pressures described above. The second stage is then carried out at pressures between 10-80bars.
  • the high pressure homogenisation allows activating the fibres to have them in an expanded form.
  • Expanded fibres are fibres which have undergone an "activation" step, for example by high energy processing of the fibres in a solvent.
  • high energy processing may be high pressure homogenisation and/or high shear mixing.
  • the three-dimensional structure of the fibres is modified in that the surface area of the fibres is increased.
  • fibres are activated at an earlier stage, e.g. in water, and homogenisation can be carried out in standard conditions, namely at a pressure of between 40 and 200 bars, preferably between 100 and 150 bars, more preferably between 120 and 140 bars.
  • the mix is frozen.
  • the freezing step preferably is done in two steps: firstly, 10-60 minutes in a blast freezer at -35°C and then at least 2-3 hours at - 16°C.
  • the mix may be aged under standard conditions and packaged into containers of desired dimensions and hardened.
  • flavourings, colourings, sauces, inclusions etc. may be carried out prior to the ageing step. If flavourings, colourings, sauces, inclusions etc. are added, these are selected from natural ingredients only.
  • the frozen confectionery is aerated to an overrun of 20-140%, preferably 20-80% and most preferably 30-60%.
  • the method of the invention thus lends itself to the manufacture of frozen confectionery which is all natural and does not contain any artificial ingredients, "E- numbers” etc. Furthermore, it is surprising that the high pressure homogenisation used in one embodiment of the present method to activate the fibres is compatible with the presence of native rice starch and, also optionally, the presence of high amounts of fat (up to 15%) . Under standard manufacturing conditions, it would not be contemplated to combine high amounts of fat with the high homogenisation pressure. Furthermore, starch is normally sensitive to high pressures. However, the present invention has found that the present manufacturing conditions surprisingly produce stable products and products which have good creaminess properties.
  • a further aspect of the invention relates to frozen confectionery comprising rice starch, egg yolk as a natural emulsifier and expanded fibres from vegetables, fruits or mixtures thereof.
  • Expanded fibres i.e. fibres with higher surface area provide improved functionality and confer better thickening properties, freeze-thaw, heat and/or foam stability etc. to the compositions in which they are present.
  • the expanded fibres present in the frozen confectionery are expanded citrus fibres.
  • the frozen confectionery may be an ice cream or a frozen dessert and have an overrun of 20 to 140%, preferably 20 to 80%, more preferably 30 to 60%.
  • the fat content of the present frozen confectionery is 5-20%, preferably 8-15%, more preferably 10-13%, while in another embodiment, the fat content may be lower than 5%.
  • the rice starch is preferably present in an amount of 0.1- 3%, preferably 0.2-2% of the frozen confectionery.
  • the fibres in the frozen confectionery may be present in an amount of 0.05-2%, preferably 0.1-0.8% of the frozen confectionery.
  • the frozen confectionery of the invention further comprises natural emulsifiers, in particular egg yolk.
  • natural emulsifiers in particular egg yolk.
  • yolk is preferably present in an amount comprised between 1.5% and 6% of the frozen confectionery.
  • the present confectionery are characterised in that they comprise only natural ingredients.
  • the present invention proposes a new way in which an "all natural" frozen confectionery which is stable and organoleptically acceptable by the consumer may be manufactured without resorting to artificial ingredients.
  • Standard stabiliser/emulsifier systems which comprise R enumbers" or chemically synthesised compounds are dispensed with, which provides a more appealable product to the consumer.
  • organoleptic aspects such as creaminess are not compromised despite the high energy processing conditions, not normally used in frozen confectionery manufacture.
  • Example 1 An ice cream of the invention was manufactured under the following conditions:

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Botany (AREA)
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Abstract

The present invention relates to stabiliser systems which may be used in the manufacture of frozen dessert which comprise native rice starch, egg yolk as a natural emulsifier and fibres from vegetables, fruits or mixtures thereof. It also relates to a method for manufacturing a frozen confectionery using a stabiliser system that contains only natural ingredients. The invention, in another aspect, also concerns the frozen confectionery products thus produced.

Description

P35100EP Nestec S.A. /NO 8422/WO
Natural stabiliser system for frozen dessert
Field of the invention
The present invention relates to stabiliser systems which may be used in the manufacture of frozen dessert which comprise native rice starch and fibres from vegetables, fruits or mixtures thereof. It also relates to a method for manufacturing a frozen confectionery using a stabiliser system that contains only natural ingredients. The invention, in another aspect, also concerns the frozen confectionery products thus produced.
Background of the invention
In the manufacture of frozen confectionery, stabilisers are generally used for functional purposes such as improvement of smoothness, prevention of ice crystal formation in storage, improvement of handling properties, while the use of emulsifiers results in smaller air cells which are evenly distributed in the product.
These ingredients are indispensable to the manufacture of commercially acceptable products. Efficient stabiliser/emulsifier systems already exist, but these are often chemically modified products. There is thus a need for providing systems which are more natural and efficient. There have been some efforts in this field.
For instance WO2005/115163 describes the use of vegetable fibres which are more effective to maintain the compactness and structural resistance of similar products that use stabilisers like guar, carob, alginates, carrageenan and others . P35100EP Nestec S.A. /NO 8422/WO
EP 1180330 Al proposes to replace the traditional use of expensive stabilising agents without compromising the organoleptic properties of frozen confectionery. To this end, it is proposed a frozen confectionery comprising fat, a sweetening agent, milk solids non fat, water, starch such that the total amount of starch and milk solids non fat is between 2.5 and 18% and that the weight ratio of starch to milk solids non fat is between 0.03 and 1.5.
Starch, in particular rice starch and/or oat starch, is also present in the composition of WO92/13465 as a fat substitute in frozen desserts. The desserts are said to have an excellent texture, smoothness and mouth feel. Similarly, CN1403008 also discloses the use of rice starch as fat substitute and JP3209714 discloses the preparation of a liquid base for ice cream also comprising rice starch.
EP 1400176 Al also describes frozen aerated products which have no additional stabilisers or emulsifiers and have an overrun of 10-250%, a pH, when melted, of 3.5 to 5.2, and which comprise 0-20% fat, 0.25 to 20% milk solids not fat, 0.05 to 1.5% soluble dietary fibre and 0.1 to 5% insoluble dietary fibres.
WO 9115517 relates to low-cost crude pectin-containing vegetable product prepared from agricultural waste products which can be useful as a stabilizer for frozen desserts. The raw material may be used directly as it is obtained from the fruit or vegetable processing plants. Especially preferred sources of raw materials for the P35100EP Nestec S.A. /NO 8422/WO
product are citrus fruit peel, apple pomace and sugar beet pulp.
Stabiliser systems are widely available on the market. These generally include gums, esters of mono-, diglycerides, etc. and are thus mostly not considered as fully natural products.
GB 2359727 also describes an emulsifier composition which can be used in ice creams and which comprises an emulsifier which encapsulates a disintegration improver, such as a fibre or a hydrocolloid.
Object of the invention There thus still remains a need to provide a stabiliser system which can be used in the manufacture of all natural frozen confectionery products. There is also a need for efficient stabiliser systems.
Summary of the invention
Accordingly, the present object is achieved by means of the features of the independent claims. The dependent claims develop further the central idea of the invention.
Accordingly, in a first aspect, the present invention provides a stabiliser system for use in frozen confectionery, characterised in that it comprises native rice starch, egg yolk as a natural emulsifier and fibres from vegetables, fruits or mixtures thereof. P35100EP Nestec S.A. /NO 8422/WO
The use of a stabiliser system according to any of claims 1 to 2 in the manufacture of frozen confectionery also forms part of the invention.
In a further aspect, a method for the manufacture of a frozen confectionery comprising the steps of: a. Blending frozen confectionery ingredients with a stabiliser system comprising native rice starch, egg yolk as a natural emulsifier and fibres from vegetables, fruits or mixtures thereof, b. Pasteurising and homogenising the mix, c. Freezing the mix as well as a product obtainable by said method are provided by the present invention.
In case fibres have not been expanded at an earlier stage, the homogenising stage is performed in at least one stage at a pressure of 150-250bars, preferably 180-250bars, more preferably 200-230bars.
Finally, a frozen confectionery product characterised in that it comprises rice starch, egg yolk as a natural emulsifier and expanded fibres from vegetables, fruits or mixtures thereof is also encompassed by the present invention.
Detailed description of the invention
The present invention concerns a stabiliser system for use in frozen confectionery. By "stabiliser system" is to be understood a mixture of ingredients, which contributes to the stability of the frozen product with respect to ice P35100EP Nestec S.A. /NO 8422/WO
crystal formation, heat shock resistance, overall texture properties etc. Thus the stabiliser system may comprise any ingredients which are of structural importance to the frozen confectionery. This stabiliser system may thus comprise ingredients which render the texture creamier, or emulsifying ingredients, which overall contribute to the advantageous textural, structural, organoleptic properties of the product.
In the present description, by "natural ingredients" is meant ingredients of natural origin. These include ingredients which come directly from the field, the animals etc. They may also include ingredients which are the result of a physical or microbiological/enzymatic process (e.g. extraction, fermentation etc.) . However, they do not include ingredients which are the result of a chemical modification process.
In the present invention, the stabiliser system is characterised in that it comprises native rice starch, egg yolk as a natural emulsifier and fibres from vegetables, fruits or a mixture thereof.
By fruit fibres is to be understood fibres obtainable by any fruit or mixtures of fruits. They may be provided in the form of pieces of the fruit itself, fruit extracts, fruit juice, fruit puree, fruit concentrate etc. Suitable fruits include apple, lemon, banana, blackberry, blackcurrant, blueberry, cherry, pomegranate, pumpkin, cranberry, gooseberry, grapes, guava, kiwi, mango, orange, papaya, passion fruit, peach, pear, pineapple, plums, raspberry, redcurrant, strawberry, tomato, etc. P35100EP Nestec S.A. /NO 8422/WO
By vegetable fibres is to be understood fibres obtainable by any plant source other than a fruit. These may include beans, Brussels sprouts, carrot, cauliflower, celery, onions, sugar beet, potato, cabbage, bamboo etc.
Preferably, the fibres used in the present invention are citrus fibres.
By native rice starch is meant rice starch which has not undergone any chemical or physical modifications.
Without wishing to be bound by theory, it is suspected that the combination of fibres from vegetables, fruits, or mixtures thereof and native rice starch is particularly effective as a stabiliser.
Additionally, native rice starch has been shown to give better results than other starches (e.g. tapioca starch or maize starch) in terms of global texture and creaminess.
Furthermore, the stabiliser system presents the advantage that it does not contain any artificial or unnatural components .
The stabiliser system further comprises egg yolk as a natural emulsifier.
By emulsifiers is meant compounds which confer to the finished product a smoother texture and stiffer body, which reduce the whipping time. The presence of emulsifiers results in air cells that are smaller and more P35100EP Nestec S.A. /NO 8422/WO
evenly distributed throughout the internal structure of the ice cream.
In a preferred embodiment, the stabiliser system comprises native rice starch, citrus fibres and egg yolk only.
The stabiliser system of the invention may be used in the manufacture of frozen confectionery. For example, it may be used in the same way as traditional stabiliser/emulsifier systems in the manufacture of ice cream, mellorine etc. It presents not only the advantage of being particularly effective, but also the advantage that it contains only natural ingredients and can be used in green label, all natural frozen confectionery.
The invention further relates to a method for the manufacture of a frozen confectionery comprising, in a first stage, the step of blending frozen confectionery ingredients with a stabiliser system comprising native rice starch, egg yolk as a natural emulsifier and fibres from vegetables, fruits or mixtures thereof. In a preferred embodiment, the fibres in the stabiliser system are citrus fibres. Frozen confectionery ingredients are typical ingredients such as any of fat, sugars, milk solids non-fat and combinations thereof. In an embodiment, fat is present in an amount of 5-20%, preferably 8-15%, more preferably 10- 13%.
Once the above ingredients are mixed, the mix is pasteurised under standard conditions. Pasteurisation is followed or preceded by homogenisation . P35100EP Nestec S.A. /NO 8422/WO
According to one embodiment, homogenisation is carried out in at least one stage at a pressure of 150-250bars, preferably 180-250bars, more preferably 200-230bars. Preferably, the homogenisation is carried out in two stages, the first stage being at the pressures described above. The second stage is then carried out at pressures between 10-80bars. The high pressure homogenisation allows activating the fibres to have them in an expanded form.
Expanded fibres are fibres which have undergone an "activation" step, for example by high energy processing of the fibres in a solvent. Such high energy processing may be high pressure homogenisation and/or high shear mixing. Thus, the three-dimensional structure of the fibres is modified in that the surface area of the fibres is increased.
In another embodiment, fibres are activated at an earlier stage, e.g. in water, and homogenisation can be carried out in standard conditions, namely at a pressure of between 40 and 200 bars, preferably between 100 and 150 bars, more preferably between 120 and 140 bars.
In a final step, the mix is frozen. The freezing step preferably is done in two steps: firstly, 10-60 minutes in a blast freezer at -35°C and then at least 2-3 hours at - 16°C.
Preferably, prior to freezing, the mix may be aged under standard conditions and packaged into containers of desired dimensions and hardened. P35100EP Nestec S.A. /NO 8422/WO
Optionally, the addition of flavourings, colourings, sauces, inclusions etc. may be carried out prior to the ageing step. If flavourings, colourings, sauces, inclusions etc. are added, these are selected from natural ingredients only.
In a preferred embodiment, the frozen confectionery is aerated to an overrun of 20-140%, preferably 20-80% and most preferably 30-60%.
The method of the invention thus lends itself to the manufacture of frozen confectionery which is all natural and does not contain any artificial ingredients, "E- numbers" etc. Furthermore, it is surprising that the high pressure homogenisation used in one embodiment of the present method to activate the fibres is compatible with the presence of native rice starch and, also optionally, the presence of high amounts of fat (up to 15%) . Under standard manufacturing conditions, it would not be contemplated to combine high amounts of fat with the high homogenisation pressure. Furthermore, starch is normally sensitive to high pressures. However, the present invention has found that the present manufacturing conditions surprisingly produce stable products and products which have good creaminess properties.
The products obtainable by the present method also form part of the invention. P35100EP Nestec S.A. /NO 8422/WO
A further aspect of the invention relates to frozen confectionery comprising rice starch, egg yolk as a natural emulsifier and expanded fibres from vegetables, fruits or mixtures thereof.
Expanded fibres, i.e. fibres with higher surface area provide improved functionality and confer better thickening properties, freeze-thaw, heat and/or foam stability etc. to the compositions in which they are present.
Preferably, the expanded fibres present in the frozen confectionery are expanded citrus fibres.
The frozen confectionery may be an ice cream or a frozen dessert and have an overrun of 20 to 140%, preferably 20 to 80%, more preferably 30 to 60%.
In an embodiment, the fat content of the present frozen confectionery is 5-20%, preferably 8-15%, more preferably 10-13%, while in another embodiment, the fat content may be lower than 5%.
The rice starch is preferably present in an amount of 0.1- 3%, preferably 0.2-2% of the frozen confectionery.
The fibres in the frozen confectionery may be present in an amount of 0.05-2%, preferably 0.1-0.8% of the frozen confectionery.
The frozen confectionery of the invention further comprises natural emulsifiers, in particular egg yolk. Egg P35100EP Nestec S.A. /NO 8422/WO
yolk is preferably present in an amount comprised between 1.5% and 6% of the frozen confectionery.
The present confectionery are characterised in that they comprise only natural ingredients.
The present invention proposes a new way in which an "all natural" frozen confectionery which is stable and organoleptically acceptable by the consumer may be manufactured without resorting to artificial ingredients. Standard stabiliser/emulsifier systems which comprise Renumbers" or chemically synthesised compounds are dispensed with, which provides a more appealable product to the consumer. Furthermore, organoleptic aspects such as creaminess are not compromised despite the high energy processing conditions, not normally used in frozen confectionery manufacture.
The present invention is illustrated further herein by the following non-limiting examples.
Examples
Example 1 An ice cream of the invention was manufactured under the following conditions:
Sugar, milk fat, Milk Solid Non Fat (MSNF) , native rice starch, egg yolk and citrus fibres were blended with water using a high speed blender. The mix was then pasteurised under continuous pasteurisation using a High Temperature Short Time (HTST) heat exchanger in a large, insulated P35100EP
Nestec S.A. /NO 8422/WO
feed tank, with preheating to 30-400C. Pasteurisation was carried out, followed by homogenisation in two stages, firstly at above 180 bars and, in the second stage, at 50 bars. Flavours, colourings, inclusions, sauces could be added to the mix. The mix was then aged for 6 hours at 30C before being packed in boxes. The ice cream was then hardened at -35°C, followed by -16°C and then stored at - 18°C.
Example 2
An ice cream recipe having an overrun between 20-80% according to the present invention is given below:
Figure imgf000013_0001

Claims

P35100EP Nestec S.A. /NO 8422/WOProposed claims
1. Stabiliser system for use in frozen confectionery characterised in that it comprises native rice starch, egg yolk as a natural emulsifier and fibres from vegetables, fruits or mixtures thereof.
2. Stabiliser system according to claim 1, wherein the fibres are citrus fibres.
3. Use of a stabiliser system according to any of claims 1 to 2 in the manufacture of frozen confectionery.
4. Method for the manufacture of a frozen confectionery comprising the steps of:
a. Blending frozen confectionery ingredients with a stabiliser system comprising native rice starch, egg yolk as a natural emulsifier and expanded fibres from vegetables, fruits or mixtures thereof, b. Pasteurising and homogenising the mix, c. Freezing the mix.
5. Method for the manufacture of a frozen confectionery comprising the steps of:
a. Blending frozen confectionery ingredients with a stabiliser system comprising native rice starch, egg yolk as a natural emulsifier and fibres from vegetables, fruits or mixtures thereof, P35100EP Nestec S.A. /NO 8422/WO
b. Pasteurising and homogenising the mix, wherein homogenising is performed in at least one stage at a pressure of 150-250bars, preferably 180- 250bars, more preferably 200-230bars, to expand the fibres, c. Freezing the mix.
6. Method for the manufacture of a frozen confectionery according to claim 5, wherein homogenising is carried out in a first stage at a pressure of 150-250bars, more preferably 200-230bars and in a second stage at a pressures between 10 and 80 bars.
7. Method according to any of claims 4 or 6, wherein the fibres are citrus fibres.
8. Method according to any of claims 4 or 7, wherein the frozen confectionery ingredients include any of fat, sugars, milk-solids non-fat and combinations thereof.
9. Method according to claim 8, wherein the fat is present in an amount of 5-20%, preferably 8-15%, more preferably 10-13%.
10. Method according to any of claims 4 to 9, which comprises an additional ageing step and a packaging step prior to freezing the mix.
11. Frozen confectionery obtainable by the method of claims 4 to 10. P35100EP Nestec S.A. /NO 8422/WO
12. Frozen confectionery product characterised in that it comprises rice starch, egg yolk as a natural emulsifier and expanded fibres from vegetables, fruits or mixtures thereof.
13. Frozen confectionery product according to claim 12, wherein the fibres are citrus fibres.
14. Frozen confectionery product according to any of claims 12 to 13, which is an ice cream.
15. Frozen confectionery product according to any of claims 12 to 14, which has an overrun of 20 to 140%, preferably 20 to 80%, more preferably 30 to 60%.
16. Frozen confectionery product according to any of claims 12 to 15, which has a fat content of 5-20%, preferably 8-15%, more preferably 10-13%.
17. Frozen confectionery product according to any of claims 12 to 15, which has a fat content lower than 5%.
18. Frozen confectionery product according to any of claims 12 to 17, which comprises rice starch in an amount of 0.2-2%, egg yolk in an amount of 1.5-6% and vegetable expanded fibres in an amount of 0.1-0.8% of the frozen product. P35100EP Nestec S.A. /NO 8422/WO
19. Frozen confectionery product according to any of claims 12 to 18, which comprises only natural ingredients .
PCT/EP2008/058560 2007-08-03 2008-07-03 Natural stabiliser system for frozen dessert WO2009019088A1 (en)

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ES08774687.1T ES2608977T3 (en) 2007-08-03 2008-07-03 Natural stabilizer system for frozen desserts
NZ582946A NZ582946A (en) 2007-08-03 2008-07-03 Natural stabiliser system for frozen dessert
RU2010107614/13A RU2483564C2 (en) 2007-08-03 2008-07-03 Natural stabilising system for frozen desert
CA2691433A CA2691433C (en) 2007-08-03 2008-07-03 Natural stabiliser system for frozen dessert
BRPI0815010-9A2A BRPI0815010A2 (en) 2007-08-03 2008-07-03 NATURAL STABILIZED SYSTEM FOR FROZEN DESSERT
JP2010518589A JP2010535018A (en) 2007-08-03 2008-07-03 Natural stabilizer system for frozen desserts
US12/671,412 US8956680B2 (en) 2007-08-03 2008-07-03 Natural stabiliser system for frozen dessert
AU2008285827A AU2008285827A1 (en) 2007-08-03 2008-07-03 Natural stabiliser system for frozen dessert
CN200880101051A CN101765374A (en) 2007-08-03 2008-07-03 Natural stabiliser system for frozen dessert
EP08774687.1A EP2185003B1 (en) 2007-08-03 2008-07-03 Natural stabiliser system for frozen dessert
IL202525A IL202525A (en) 2007-08-03 2009-12-06 Stabilizer system of natural ingredients for use in frozen confectionery
ZA2010/01520A ZA201001520B (en) 2007-08-03 2010-03-02 Natural stabiliser system for frozen dessert

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EP07113805.1A EP2025240B1 (en) 2007-08-03 2007-08-03 Natural stabiliser system for frozen dessert
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ZA201001520B (en) 2011-05-25
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MY162356A (en) 2017-06-15
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NZ582946A (en) 2011-09-30
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HK1126355A1 (en) 2009-09-04
CN106071031A (en) 2016-11-09
EP2185003B1 (en) 2016-10-12
CN101765374A (en) 2010-06-30
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PL391170A1 (en) 2010-12-06
AU2008285827A1 (en) 2009-02-12
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US8956680B2 (en) 2015-02-17
TW200930306A (en) 2009-07-16
BRPI0815010A2 (en) 2014-10-07
ES2608977T3 (en) 2017-04-17
RU2483564C2 (en) 2013-06-10
EP2025240A1 (en) 2009-02-18
JP2010535018A (en) 2010-11-18
US20100203202A1 (en) 2010-08-12

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