WO2017081305A1 - Boisson lactée mousseuse - Google Patents

Boisson lactée mousseuse Download PDF

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Publication number
WO2017081305A1
WO2017081305A1 PCT/EP2016/077510 EP2016077510W WO2017081305A1 WO 2017081305 A1 WO2017081305 A1 WO 2017081305A1 EP 2016077510 W EP2016077510 W EP 2016077510W WO 2017081305 A1 WO2017081305 A1 WO 2017081305A1
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WO
WIPO (PCT)
Prior art keywords
composition
weight
liquid
liquid dairy
foamed
Prior art date
Application number
PCT/EP2016/077510
Other languages
English (en)
Inventor
Aurore Celine CHETIOUI
Cécile Gehin-Delval
Jan Engmann
Roelco KLEIJN
Eric Stanislas KOLODZIEJCZYK
André Noth
Gabriela Savin
Theodora PANAGIOTOU
Emmanuelle FLORENTIN
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
Application filed by Nestec S.A. filed Critical Nestec S.A.
Publication of WO2017081305A1 publication Critical patent/WO2017081305A1/fr

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Classifications

    • 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
    • A23C9/00—Milk preparations; Milk powder or milk powder preparations
    • A23C9/12—Fermented milk preparations; Treatment using microorganisms or enzymes
    • A23C9/13—Fermented milk preparations; Treatment using microorganisms or enzymes using additives
    • A23C9/1307—Milk products or derivatives; Fruit or vegetable juices; Sugars, sugar alcohols, sweeteners; Oligosaccharides; Organic acids or salts thereof or acidifying agents; Flavours, dyes or pigments; Inert or aerosol gases; Carbonation methods
    • 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
    • A23C9/00—Milk preparations; Milk powder or milk powder preparations
    • A23C9/12—Fermented milk preparations; Treatment using microorganisms or enzymes
    • A23C9/13—Fermented milk preparations; Treatment using microorganisms or enzymes using additives
    • A23C9/133—Fruit or vegetables
    • 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
    • A23C9/00—Milk preparations; Milk powder or milk powder preparations
    • A23C9/12—Fermented milk preparations; Treatment using microorganisms or enzymes
    • A23C9/13—Fermented milk preparations; Treatment using microorganisms or enzymes using additives
    • A23C9/137—Thickening substances
    • 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
    • A23L29/00—Foods or foodstuffs containing additives; Preparation or treatment thereof
    • A23L29/20—Foods or foodstuffs containing additives; Preparation or treatment thereof containing gelling or thickening agents
    • A23L29/206—Foods or foodstuffs containing additives; Preparation or treatment thereof containing gelling or thickening agents of vegetable origin
    • A23L29/231—Pectin; Derivatives thereof

Definitions

  • the invention relates in general to a dairy composition suitable for making a foamed dairy beverage, to its manufacture process, and to a process for preparing a foamed dairy beverage.
  • Yoghurt is a common dairy product consumed globally. Its organoleptic properties have a large effect on consumer acceptability. Whipped yoghurts (also called yoghurt mousses) evolved as a new category of dairy products due to their ability to provide new and unique textures, mouth-feels and product appearances.
  • Dairy beverages include smoothies, milkshakes and liquid yogurts.
  • dairy beverages comprise a dairy component, such as yogurt, fromage blanc or milk, and a large portion of fruit mixed with the dairy component.
  • whole fruit or fruit pulp are used and blended in a mixer with the dairy component, to provide a smooth drink.
  • the beverage is also mixed with crushed ice, sweeteners, plant milks, nuts, or chocolate. Smoothies usually contain more fruit than milkshakes.
  • smoothies do not contain air.
  • Whipping or foaming consists in dispersing and stabilizing a gas phase (usually nitrogen or air) in the form of tiny bubbles into the continuous yoghurt matrix.
  • Foaming processes can be performed batchwise or continuously.
  • foaming may be performed by batch with standard kitchen mixers, such as a HOBART or a KITCHENAID mixer.
  • Continuous foaming is generally performed on an industrial scale, for instance using equipment described in WO 2013/068426 Al.
  • the properties of the foamed yoghurt depend on the foaming operation, gas fraction (expressed as the overrun), the bubble size distribution, as well as on the distribution of the ingredients between the bulk and the gas-yoghurt interface.
  • the manufacture of commercial yoghurt mousses is based on a continuous process.
  • the foams are characterized by an overrun of about 100% which remains stable for 1 month under refrigerated storage conditions.
  • Patent application WO 2010/122033 A2 discloses fermented dairy products with reduced caloric values, in particular low-fat milkshakes and smoothies having reduced amounts in sugar.
  • the dairy product contains gelatine. It also contains live probiotic bacteria.
  • the compositions which contain an emulsifier exhibit a foaming rate of less than 50%, lower than the compositions which do not contain the emulsifier.
  • Patent application WO 2010/122376 Al relates to a similar product. This document also discloses a composition which contains alive probiotics.
  • Patent application WO 2011/084570 Al discloses a whippable composition suitable for making a topping.
  • the composition comprises yogurt and a whip topping emulsion.
  • the yoghurt and the whip topping emulsion are prepared separately, and then combined at low temperature (3 to 15°C).
  • the composition is manufactured in a manner that preserves the microflora of the yogurt. It has a shelf life of up to one year when frozen.
  • the whippable composition must be thawed for at least 12 hours in a refrigerator (4 to 7°C) before whipping in a mixer.
  • the finished whipped product may be stored for up to 5 days in a refrigerator.
  • Patent application US 2003/068406 Al discloses a chilled whipped yogurt product and its method of preparation.
  • a hydrated pasteurized emulsifier blend is added after fermentation of the yogurt product, before aeration.
  • the hydrated emulsifier blend contains a wetting agent such as polysorbates or sodium stearyl lactylate, and an emulsifier blend of lactylated mono- and di-glycerides.
  • the yogurt product also contains gelatine. A gas in injected into the product, and then it is whipped with a standard continuous whipping equipment. The whipped product is stored, distributed and sold under refrigerated conditions.
  • Patent application US 2011/020512 Al discloses a method to enhance the foam retention property of a beverage.
  • Enhanced foam retention properties in a beverage are achieved with a fermentation-derived cellulose complexed with a high-molecular substance such as xanthan gum, guar gum, and carboxymethylcellulose.
  • JP 2007 006738 A discloses a method for producing a fermented milk beverage having a good storage stability.
  • Whey ingredients are known ingredients in the dairy industry. They can provide nutritional and functional benefits to yogurts and yogurt beverages ("U.S. Whey Ingredients in Yogurt and Yogurt Beverages, Alan Hugunin, U.S. Dairy Export Council, 2009).
  • Patent application US 2012/0052160 Al discloses a foamable composition that comprises calcium-depleted casein and whey protein. This composition has foaming and heat-set characteristics similar to that of egg white.
  • Patent US 5,308,628 relates to a method of preparing frozen dairy desserts. Specifically, a method of preparing thickener-free ice cream from a mixture of fermented milk constituents and sugars, is disclosed.
  • foaming agents are used in industrial processes.
  • the foaming agents are emulsifiers such as mono- and di-glycerides and their derivatives, which are not always well perceived by consumers.
  • Gelatine is a common stabilizer in commercial products. Gelatine is produced by partial hydrolysis of collagen extracted from animal tissues, such as cattle or pig. Gelatine replacement represents a major consumer requirement in the recent years, as well as for the vegetarian, halal and kosher markets.
  • hydrocolloids such as xanthan gum, guar gum, or cellulose derivatives are not always well perceived by consumers.
  • a first embodiment of the invention proposes a liquid dairy composition suitable for making a foamed dairy beverage, wherein said liquid dairy composition is shelf-stable under ambient storage conditions, has a pH between 3.0 and 4.5, and comprises fermented milk, 50 to 80% by weight of fruit based on the weight of the total composition, up to 2% by weight of whey protein concentrate based on the weight of the total composition, optionally up to 0.5% by weight of high methylester pectin based on the weight of the total composition; and wherein the liquid dairy composition has a whey protein / casein ratio ranging from 1 to 2, a dairy protein content ranging from 0.5 to 3% by weight based on the weight of the total composition.
  • the foamed dairy beverage is a foamed smoothie product or a foamed liquid yogurt.
  • the liquid dairy composition is a foamable liquid dairy composition. It is suitable for making a foamed dairy beverage having an overrun of 30% to 80%.
  • the liquid dairy composition comprises from 0.05% up to 1.5% by weight of fat based on the weight of the total composition. In an embodiment, the liquid dairy composition comprises from 0.5 to 1.5% by weight of whey protein concentrate based on the weight of the total composition.
  • the liquid dairy composition has a total solid content from 10 to 20% based on the weight of the total composition, preferably from 10 to 15%.
  • the liquid dairy composition comprises from 20 to 50% by weight of fermented milk based on the weight of the total composition.
  • liquid dairy composition is packed in a single-portion container.
  • compositions may be used in the preparation of a foamed dairy beverage, for instance a foamed smoothie product or a foamed liquid yogurt, in less than 5 minutes, starting from the liquid composition at an ambient temperature.
  • the inventors it was quite surprising for the inventors to achieve the preparation of a cooled, single portion of a foamed dairy beverage, with a pleasant mouthfeel, without fat- based emulsifier, while starting from a non-foamed low-fat acid fermented dairy composition, all in less than 5 minutes. In this timespan, the foamed dairy composition may reach an overrun of 30% to 80%.
  • a second embodiment of the invention proposes a pack comprising at least two containers, preferably single-portion containers, wherein at least one of said containers contains a liquid dairy composition according to the first embodiment of the invention, and wherein each of the remaining containers contains a liquid composition selected from the group comprising: a liquid dairy composition according to the first embodiment of the invention, a liquid composition which is shelf-stable under ambient storage conditions and is suitable for making a frozen confection, and a liquid composition which is shelf-stable under ambient storage conditions and is suitable for making a foamed yogurt-type product.
  • a third embodiment of the invention proposes a process of manufacturing a liquid dairy composition suitable for making a foamed dairy beverage, comprising the steps of:
  • step e) adding up to 1% by weight of high methylester pectin based on the weight of the total composition, to the milk blend or to the fermented milk composition,
  • liquid dairy composition has a whey protein / casein ratio ranging from 1 to 2, a dairy protein content ranging from 0.5 to 3% by weight based on the weight of the total composition.
  • the whey protein concentrate is added to the liquid milk blend.
  • the high methylester pectin is added to the fermented milk composition before homogenising and heat-treating the fermented milk composition.
  • the fermented milk composition has a fat content ranging from 0.5 to 3.5% by weight.
  • the liquid dairy composition comprises 20 to 50% by weight of fermented milk composition and 50 to 80% by weight of fruit preparation.
  • the pH of the fruit preparation is comprised from 3.0 to 4.0 prior to addition into the fermented milk composition.
  • the liquid dairy composition is packed into a single-portion container.
  • the liquid dairy composition is packed aseptically.
  • a fourth embodiment of the invention proposes a process of preparing a foamed dairy beverage, comprising the steps of: a) providing a liquid dairy composition according to the first embodiment of the invention, at ambient temperature, preferably at a temperature between 10°C and 25°C
  • liquid dairy composition b) cooling the liquid dairy composition to a temperature between 1°C and 8°C for a period below 10 minutes, preferably below 5 minutes, even more preferably below 3 minutes, under mild agitation, and then,
  • liquid dairy composition aerating the liquid dairy composition to an overrun in the range from 30% to 80% by stirring the composition with a stirring member.
  • the foamed dairy beverage is a foamed smoothie product or a foamed liquid yogurt-type product.
  • the liquid dairy composition is dispensed from a single- portion container into a process container before step b).
  • said stirring member has a planetary movement with an angular velocity ⁇ 2 between 100 and 200 rpm and a rotation about an axis with an angular velocity ⁇ of 0 to 350 rpm during the cooling step b).
  • the aeration step c) lasts up to 120 seconds, preferably from 20 to 90 seconds.
  • the liquid dairy composition is further cooled down to or maintained at a temperature between 1°C and 5°C during the aeration step c).
  • said stirring member has a planetary movement with an angular velocity ⁇ 2 between 150 and 350 rpm and a rotation about an axis with an angular velocity ⁇ of 300 to 600 rpm during the aeration step c).
  • the angular velocity ⁇ has an opposite direction to the angular velocity ⁇ 2 during the cooling step, during the aerating step or during both the cooling and aerating steps.
  • the angular velocity ⁇ has an opposite direction to the angular velocity ⁇ 2 at least during the aerating step.
  • pre-conversion archive The figures are provided as black-and-white pdf documents after conversion from a coloured pre-conversion document.
  • the pre-conversion document is filed together with this patent application as the "pre-conversion archive”.
  • Figure 1 is a diagram showing embodiments of the process of manufacturing a liquid dairy composition.
  • Figure 2 shows the air bubble size distribution in the whipped product using either the KA (blue line) or the SP (red line) device, as in Example 1.
  • Figure 3 are confocal microscopy pictures showing simultaneously the distribution of fat (in red in the pre-conversion figure) and proteins (in green in the pre- conversion figure), in foamed recipes Rl and RC3 of Example 1.
  • total composition refers to the liquid dairy composition.
  • the invention relates to a liquid dairy composition suitable for making a foamed dairy beverage.
  • the liquid dairy composition is shelf- stable under ambient storage conditions.
  • ambient refers to an ambient temperature, for instance between 15°C and 25°C.
  • shelf-stable under ambient storage conditions means that the connposition does not undergo spoilage, and maintains its organoleptic properties, in particular its foaming capacity, for up to 6 months, preferably up to 9 months, when stored at a temperature of up to 20°C, and preferably up to 25°C.
  • the liquid dairy composition is shelf stable for up to 9 months at 25°C.
  • the liquid dairy composition is heat-treated.
  • the liquid dairy composition is heat-treated at a temperature lower than 100°C as it has a pH lower than 4.6.
  • the pasteurisation temperature could range from 75°C to 95°C for 2 to 180 sec depending on the composition.
  • the ferments in the liquid dairy composition are inactivated.
  • the invention relates in part to a liquid dairy composition which is shelf-stable at storage temperatures ranging from 15°C to 25°C, for up to 6 months, and even up to 9 months.
  • the liquid dairy composition comprises fermented milk, where ferments are inactivated.
  • inactivation of the ferments is performed by heat treatment, such as pasteurisation.
  • liquid dairy composition During storage, the liquid dairy composition is non-foamed. Nevertheless, the liquid dairy composition remains foamable upon appropriate aeration, as will be explained below.
  • the liquid dairy composition has a pH between 3.0 and 4.5, preferably between 3.5 and 4.0, and more preferably between 3.6 and 3.8.
  • the pH of the composition results from fermentation of milk by a starter culture, during manufacture of the composition, as will be explained below and is illustrated on Figure 1, and addition of the fruit preparation.
  • An acidic pH is a usual component in the flavour of a yogurt-type product.
  • the liquid dairy composition comprises a liquid fermented dairy composition, such as a liquid yogurt-type composition.
  • the liquid fermented dairy composition is a heat-treated liquid fermented dairy composition, such that the ferments are inactivated.
  • the fermented milk composition may have a fat content ranging from 0.5 to 3.5% by weight, preferably from 1.5 to 3% by weight.
  • the liquid dairy composition comprises a fruit preparation, such as 50 to 80% by weight of fruit based on the weight of the total composition.
  • a fruit preparation such as 50 to 80% by weight of fruit based on the weight of the total composition.
  • smoothie-like products must be stored under chilled conditions. They contain foaming agents, stabilisers, and gelling agents, all of which do not derive from milk.
  • the liquid dairy composition does not contain gelatine.
  • the liquid dairy composition does not contain foaming agents that do not derive from milk.
  • the liquid dairy composition is non-foamed.
  • the liquid dairy composition is shelf-stable under ambient storage conditions, and it can be used to prepare a foamed dairy beverage, preferably a foamed smoothie product or a foamed liquid yogurt-type product, in less than 5 minutes. This is quite an exceptional achievement.
  • the liquid dairy composition contains fermented milk. While bovine milk is preferred, other milks can be used instead of, or in addition to bovine milk. Examples of alternative milk include camel, goat, sheep and equine milk. Alternatively, milk can comprise vegetable milk, such as soy milk. Various milk ingredients can be used, including skim milk, semi-skim milk, full-fat milk, in a liquid or powder form, condensed milk, as well as milk fractions. Preferably, milk is inoculated with standard yogurt ferments, namely Lactobacillus bulgaricus and Streptococcus thermophilus.
  • milk can also be inoculated with and fermented by other ferments, such as bacteria from a genus selected from Lactobacillus, Leuconostoc, Streptococcus, Lactococcus, Bifidobacterium, Enterococcus, and Pediococcus.
  • the ferment may be selected from Lactobacillus acidophilus, L. plantarum, L. casei, L. lactis, L. helveticus, L. paracasei, L.
  • the liquid dairy composition comprises from 60% to 97% by weight of fermented milk based on the weight of the total composition, preferably from 75% to 97% by weight of fermented milk based on the weight of the total composition.
  • the fermented milk is prepared from bovine milk.
  • the liquid dairy composition comprises up to 2% by weight of whey protein concentrate based on the weight of the total composition.
  • the liquid dairy composition comprises at least 0.5% by weight of whey protein concentrate based on the weight of the total composition.
  • the liquid dairy composition comprises from 0.5% up to 2% by weight of whey protein concentrate based on the weight of the total composition, more preferably from 0.7% up to 1.5%, and even more preferably from 0.8% up to 1.2% by weight of whey protein concentrate based on the weight of the total composition.
  • Whey protein concentrates are used to increase the foaming capacity of the liquid dairy composition.
  • whey protein concentrates have a better taste profile than whey protein hydrolysates.
  • Whey protein concentrate can be found from various suppliers. For instance, WPC can be obtained from Fonterra, such as WPC515. Whey proteins are natural components of milk. Hence, in the liquid dairy composition, whey proteins may come from the fermented milk, and from whey protein concentrate. Unless indicated otherwise, "whey protein content" includes whey protein from the fermented milk and whey protein from the whey protein concentrate.
  • the whey protein / casein ratio in the liquid dairy composition ranges from 1 to 2.
  • the whey protein / casein ratio ranges from 1.2 to 1.6, more preferably from 1.2 to 1.5.
  • the liquid dairy composition is heat-treated. For instance it is pasteurised.
  • An objective of the heat-treatment is to inactivate the ferments in the fermented milk composition.
  • Appropriate heat-treatments are known to the person of ordinary skill in the art. Proteins, in particular whey proteins, must be protected against the heat-treatment, so that they retain their foaming properties after heat-treatment. This is achieved by the addition of high methylester (HM) pectin based during manufacture of the liquid dairy composition.
  • HM pectin have a degree of methyl esterification (DE) higher than 50.
  • the liquid dairy composition comprises up to 1% by weight of high methylester pectin based on the weight of the total composition.
  • HM pectin examples include Pectin Genu Type HM-115-H from CP Kelco, Grindsted Pectin AMD Series from Dupont dansico.
  • CMC carboxymethylcellulose
  • Examples of CMC include Cekol HVD from CP Kelco, Grindsted AMD 258 from Dupont Danisco, Walocle CRT 1000 from Dow.
  • the liquid dairy composition also contains up to up to 1.5% by weight of fat based on the weight of the total composition.
  • the liquid dairy composition contains less than 1.4%, or less than 1% by weight of fat based on the weight of the total composition.
  • mouthfeel and foam structure are achieved thanks to a relatively high fat content, for instance above 6% by weight, especially in fermented milk products. Indeed, the low pH of such products is detrimental to foaming, and this is counterbalanced by the high fat content or the presence of gelatine.
  • the liquid dairy composition has a low fat content, even as low as 0.05% of fat based on the weight of the total composition.
  • the liquid dairy composition can be used in the preparation of a foamed dairy beverage, such as a foamed smoothie product or a foamed liquid yogurt-type product an overrun of 30% to 80% which provides a pleasant mouthfeel despite the low fat content of the dairy beverage.
  • a foamed dairy beverage such as a foamed smoothie product or a foamed liquid yogurt-type product an overrun of 30% to 80% which provides a pleasant mouthfeel despite the low fat content of the dairy beverage.
  • the liquid dairy composition comprises from 0.05% up to 1% by weight of fat based on the weight of the total composition.
  • the liquid dairy composition comprises from 0.1% up to 0.9% by weight of fat based on the weight of the total composition.
  • the fat is milk fat, although vegetable fat could also be considered, especially to improve the fat profile of the liquid dairy composition, from a nutritional perspective.
  • the content in mono-or poly-unsaturated triglycerides could be adjusted to provide a better balanced fat profile.
  • Milk fat can be added from various ingredients, such as cream, or whole milk.
  • Non-milk fat can be added from various vegetable oils, such as coconut oil, palm oil, sunflower, rapeseed oil. Mixes of milk fat ingredients and vegetable oils are also useful.
  • the liquid dairy composition can further include sweeteners, such as nutritive carbohydrate sweetening agents. Examples of nutritive carbohydrate sweetening agents include sucrose, high fructose corn syrup, various DE corn syrups, beet sugar, cane sugar, malt extract, honey, or maple syrup.
  • the liquid dairy composition can contain further ingredients such as minerals and vitamins, flavours and aromas, such as fruit or herbal extract, fruit juice, fruit syrup, fruit puree, fruit flavour, cereal ingredients, cereal flavour, vanilla, chocolate, coffee, or caramel.
  • fruit components include for instance, but are not limited to apricot, banana, strawberry, maracuja, grape, grapefruit, raspberry, or mango.
  • the liquid dairy composition may contain up to 80% by weight of a fruit preparation, preferably a fruit preparation which contains fruit syrup, fruit zest and/or fruit puree.
  • the liquid dairy composition contains from 50 to 80% of a fruit preparation.
  • the liquid dairy composition is essentially or completely free of any artificial or non-natural emulsifier or stabilizer.
  • artificial and non-natural ingredients which are avoided in a particular embodiment of the invention include for example the following emulsifiers: mono- and diglyceride of fatty acids, acid esters of mono- and diglycerides of fatty acids such as acetic, lactic, citric, tartaric, mono- and diacetyl tartaric acid esters of mono- and diglycerides of fatty acids, mixed acetic and tartaric acid esters of mono- and diglycerides of fatty acid, sucrose esters of fatty acids, polyglycerol esters if fatty acids, polyglycerol polyricinoleate, polyethylene sorbitan mono-oleate, polysorbate 80 and, chemically extracted lecithins.
  • Chemically modified starches which are used in the art as stabilizers are also preferably avoided. These include for example modified starch, monostarch phosphate, distarch phosphate, phosphate or acetylated distarch phosphate, acetylated starch, acetylated distarch adipate, hydroxyl propyl starch, hydroxypropyl distarch phosphate, acetylated modified starch.
  • Hydrocolloids such as xanthan gum, guar gum, carboxymethylcellulose or other cellulose derivatives, are also preferably avoided. Usually, these hydrocolloids are used in the art as texture agents.
  • the products of the present invention are preferably essentially free of the preceding synthetic esters, modified starches, and hydrocolloids.
  • essentially free means that these material are not intentionally added for their conventional property imparting abilities, e.g. stabilizing, although there could be unintended minor amounts present without detracting from the performance of the products.
  • the products of the invention will not contain any non-natural materials.
  • the liquid dairy composition is essentially free of xanthan gum, or guar gum, or carboxymethylcellulose, or other cellulose derivatives, or synthetic esters, or modified starches, or their mixtures.
  • liquid dairy composition may comprise starches which are not chemically modified, such as native starch or physically-modified starch.
  • the liquid dairy composition has a total solid content from 10 to 20% based on the weight of the total composition, preferably from 10 to 15%, and most preferably from 11 to 13%. Too high a total solid content may impact negatively the foamability of the liquid dairy composition. In addition, if the solids content is too high, the foamed dairy product obtained after whipping is too thick and cannot be considered as a beverage. On the other hand, if the total solid content is too low, this may impact the mouthfeel of the foamed dairy beverage, resulting in a product that feels too thin or watery.
  • the liquid dairy composition may be packed in a container, preferably a single- portion container.
  • packing of the liquid dairy composition is done aseptically, to avoid any contamination with environmental bacteria, spores, or moulds, and prevent spoilage during storage.
  • the single-portion container can be used, as will be explained below, in the preparation of a foamed dairy product.
  • “single-portion container” encompasses any container suitable for being disposed after being used for the preparation of the single-portion of foamed dairy beverage. Thereby, the containers are preferably at least partially recyclable.
  • Single-portion also means that the container contains the amount of liquid dairy composition sufficient to prepare one portion of foamed dairy beverage.
  • one portion of foamed dairy beverage represents any amount of product from lOOg to 250g, such as HOg, 120g, 130, 140g, 150g, 160g, 170g, 180g, 190g, 200g, 210g, 220g, 230g or 240g of product.
  • one portion can represent any volume between lOOmL and 250mL of liquid dairy composition, such as lOOmL, llOmL, 120mL, 130, 140mL, 150mL, 160mL, 170mL, 180mL, 190mL, 200mL, 210mL, 220mL, 230mL or 240mL of liquid dairy composition.
  • the container may also be designed for being used as process container, i.e. a container in which the foamed dairy beverage is prepared, as well as serving container, i.e. a container from which the consumer may directly consume the resulting foamed dairy beverage.
  • the packaging container comprises an identification means containing a recipe code related to the type of foamed dairy beverage to be prepared.
  • the identification means comprises at least one barcode.
  • the container is a pouch from which the liquid dairy composition may be dispensed into a separate process container.
  • the liquid dairy composition can be used in the preparation of a foamed dairy beverage, such as a foamed smoothie product or a foamed liquid yogurt-type product. Preparation of the foamed dairy beverage can be executed in less than 5 minutes, preferably in about 3 minutes. As the liquid dairy composition is shelf-stable under ambient storage conditions, it does not need to be stored at refrigerated temperatures, contrary to current foamed or whipped dairy products. For instance, it may be stored at ambient temperatures in warehouses or in shops. In addition, the foamed dairy beverage can be prepared easily and directly from an ambient temperature liquid composition, as a single portion, which reduces losses which typically occur in standard whipping devices.
  • the foamed product has a low fat content, which is very interesting from a nutritional standpoint. Possibly, the foamed product does not contain gelatine. Because whipping can be performed at the moment of consumption, instead of several days or weeks before with standard whipped yogurts, it becomes possible to overcome issues associated with transport, the cold chain or the fragile structure of whipped products. For instance, the product does not show structure/texture changes, such as sedimentation or phase separation. In fact, it becomes possible to offer a foamed dairy beverage, with consistent and high quality, to be prepared at home for instance.
  • the invention relates to a pack comprising at least two containers, preferably single-portion containers, wherein at least one of said containers contains a liquid dairy composition as described above.
  • the remaining containers contain a liquid composition selected from: a similar liquid dairy composition, a liquid composition which is shelf-stable under ambient storage conditions and is suitable for making a frozen confection, and a liquid composition which is shelf-stable under ambient storage conditions and is suitable for making a foamed yogurt-type product.
  • the pack comprises one or several categories of containers, preferably single-portion containers.
  • Said frozen confection could be selected from a smoothie, a frappuccino, a sorbet, or an ice-cream.
  • liquid compositions suitable for making a frozen confection are described in copending International patent applications PCT/EP2015/060000 and PCT/EP2015/060002 filed on May 6, 2015.
  • Said chilled beverage such as a chilled dairy beverage, could be selected from cafe latte, tea latte, cereal-based dairy beverage, milk-shake type beverages, including milk-shake flavoured with fruit, cocoa, coffee, caramel, vanilla, malt, or tea.
  • the containers or only some of them contain a liquid dairy composition as described above, which are suitable for making a foamed dairy beverage, such as a foamed smoothie product or a foamed liquid yogurt-type product.
  • the liquid dairy composition in each container may be flavoured differently from one another, or may all have the same flavour, or may have other combinations of flavours.
  • the remaining containers are any combination of containers containing a liquid composition suitable for making a frozen confection, and a liquid composition suitable for making a chilled beverage containing a dairy component and a sweet flavour component.
  • the pack comprises only single-portion containers.
  • the pack comprises only containers which contain a liquid dairy composition suitable for making a foamed dairy beverage, such as a foamed yogurt-type product.
  • the pack is for on-shelf disposal.
  • the pack preferably comprises a single category of containers, for instance from 10 to 50 containers.
  • the pack may be to be bought by consumers.
  • the pack may comprise a mix of containers, for instance from 2 to 20 containers.
  • the process for manufacturing the liquid dairy composition begins with preparing or providing a liquid milk blend. Preferred or alternative milk sources, and fat contents are described above. Sweeteners can be added in the liquid milk blend at this stage. Sweeteners can be added in the dry blend, when relevant, or as an aqueous solution into the liquid milk blend. The ingredients are mixed to form a homogeneous liquid blend. The blend can be stored overnight for complete hydration, especially when using milk powder. The milk blend is then heated from the typical milk storage temperature of 4-5°C, to about 70°C prior to homogenization in a conventional homogeniser, for instance at a pressure of 250 bar. Homogenisation further disperses the fat component and other ingredients.
  • the milk blend is pasteurised typically at 92°C-94°C for 6 minutes. Alternative heat-treatments are known to the person of ordinary skill in the art. Then the homogenised and pasteurised milk blend is cooled to the fermentation temperature.
  • the fermentation temperature depends on the ferment. Typically, it varies between 37°C and 45°C.
  • a ferment is added to the milk blend, for instance as a freeze-dried culture.
  • the starting conditions pH, water content, inoculation ratio
  • the fermentation condition temperature, duration
  • Fermentation of the milk blend is performed until a pH between 3.8 and 4.6 is reached.
  • the target pH is from 4.1 to 4.3, and even more preferably, about 4.2.
  • the fermented dairy product - "the curd" - is broken, smoothed, and cooled to about 20°C.
  • high methylester pectin may be added to the composition.
  • the high methylester pectin could also be added into the liquid milk blend, prior to pasteurisation and homogenisation.
  • the pectin is added as an aqueous solution.
  • a sweetener can be added in the fermented dairy product at this stage also, preferably as an aqueous solution.
  • the composition is let to rest for sufficient time, such as 15 to 30 minutes, before a heat treatment is performed to inactivate the ferments.
  • the composition is pre-heated to about 70°C, then it is homogenised for instance at a pressure of 150 bar, pasteurised typically at 94°C for 3 minutes, then cooled down to about 20°C for final storage in aseptic conditions.
  • the fruit preparation is added to the composition during aseptic storage.
  • the fruit preparation must also be aseptically treated.
  • the pH of the fruit preparation is comprised from 3.0 to 4.0 prior to addition into the fermented milk composition.
  • the fermented milk composition and the fruit preparation are blended so that the liquid dairy composition comprises 20 to 50% by weight of fermented milk composition and 50 to 80% by weight of fruit preparation.
  • the pasteurised fermented dairy composition is then filled aseptically into a container, preferably a single-portion container, before storage in ambient conditions.
  • a container preferably a single-portion container
  • the liquid dairy composition is not foamed before storage. In other words the liquid dairy composition is non-foamed.
  • the whey protein concentrate may be added at several steps during the manufacture of the liquid dairy composition.
  • the whey protein concentrate is added in the liquid milk blend, at the very beginning of the process.
  • whey protein concentrate can be added during storage, just before the final pasteurisation, for instance together with the pectin ingredient.
  • aseptically treated whey protein concentrate may be added in the aseptic storage. In that case, it is preferred that the whey protein concentrate be added as a blend in liquid milk.
  • Another embodiment of the invention is a process of preparing a foamed dairy beverage, comprising the steps of
  • liquid dairy composition b) cooling the liquid dairy composition to a temperature between 1°C and 8°C for a period below 10 minutes, preferably below 5 minutes, even more preferably about below 3 minutes, under mild agitation , and then,
  • liquid dairy composition is non-foamed at the beginning of the process.
  • the foamed dairy beverage is a foamed smoothie product or a foamed yogurt.
  • the liquid dairy composition is aerated to an overrun from 40% to 80%, more preferably from 40% to 60%.
  • the overrun is defined in the examples below.
  • the foamed dairy beverage flows easily from the processing container. For instance, it can be drunk directly from the processing container for consumption, as a standard smoothie or liquid yogurt beverage.
  • the foamed dairy beverage has a micro-foam structure with very small bubbles distributed throughout the product. For instance, the bubbles have a size between 30 and 70 microns. This imparts a very light and smooth texture to the foamed dairy beverage.
  • the foamed dairy beverage is prepared in its container.
  • the foamed dairy beverage is prepared in its container from the non-foamed liquid dairy composition.
  • a container is having a heat exchange contact surface through which the liquid dairy composition is cooled may conveniently be used. This allows for a quick cooling of the liquid dairy composition when the container is brought into contact with cooling means during the aeration.
  • the liquid dairy composition is dispensed from a single-portion container into a process container before step b).
  • the liquid dairy composition is a non- foamed liquid dairy composition.
  • the duration of the cooling step depends mainly on the initial temperature of the liquid dairy composition. For instance, the cooling step may last from 5 to 100 seconds.
  • the stirring member imparts a mild agitation to the liquid dairy composition.
  • the liquid dairy composition is non-foamed before the agitation and aeration steps.
  • the objective of the mild agitation is to ensure a homogeneous temperature distribution throughout the liquid dairy composition without incorporating air, or with marginal incorporation of air. Indeed, air slows down heat transfers. Once the liquid dairy composition contains air bubbles, it becomes more difficult to cool it down to the target temperature. In addition, the mild agitation prevents freezing of the liquid dairy composition onto the internal walls of the processing container.
  • the stirring member has a planetary movement with an angular velocity ⁇ 2 between 100 and 200 rpm, preferably 130 to 180 rpm, and a rotation about an axis with an angular velocity ⁇ of 0 to 350 rpm, preferably 50 to 330 rpm.
  • the angular velocity ⁇ has an opposite direction to the angular velocity ⁇ 2.
  • the ratio ⁇ 1 / ⁇ 2 is negative.
  • the ratio ranges ⁇ / ⁇ 2 from -2.2 to 0.
  • the angular velocities ⁇ and ⁇ 2 of the stirring member may be varied during the cooling step.
  • the aeration step c) may begin.
  • the objective of the aeration step is to incorporate air bubbles into the liquid dairy composition and to reach an overrun between about 30% and 80%.
  • the target temperature ranges from 1°C to 8°C, preferably from 1°C to 5°C.
  • the aeration step lasts up to 120 seconds, preferably from 20 to 90 seconds, more preferably from 20 to 70 seconds.
  • the liquid dairy composition is further cooled down to or maintained at a temperature between 1°C and 5°C during the aeration step.
  • the stirring member has a planetary movement with an angular velocity ⁇ 2 between 150 and 350 rpm, preferably 200 to 300 rpm, and a rotation about an axis with an angular velocity ⁇ of 300 to 600 rpm, preferably 350 to 500 rpm, during the aeration step c).
  • the angular velocity ⁇ has an opposite direction to the angular velocity ⁇ 2 at least during the aerating step. While one runs clockwise, the other runs counter-clockwise. In other words, the ratio ⁇ / ⁇ 2 is negative.
  • the angular velocities ⁇ and ⁇ 2 of the stirring member may be varied during the aeration step.
  • the process mentioned above may be performed in a single- portion whipping and cooling device as described co-pending application PCT/EP2013/072692 filed on 30 October 2013 and published as WO 2014/067987, or in co-pending application PCT/EP2015/059930 filed on 6 May 2015.
  • This machine comprises:
  • a receiving seat for accommodating a container, comprising a heat exchange element having a heat exchange contact surface arranged to be in contact with an outer surface of a side wall of the container when the container is placed in the machine,
  • a stirring unit connectable to a stirring member and arranged for driving the stirring member in at least one rotational movement
  • control unit for automatically setting output parameters according to input parameters received by the control unit and compared to threshold values stored in the unit;
  • the output parameters comprises: at least one rotational velocity of the stirring member and the cooling power of the cooling unit
  • the input parameters comprises any one or a combination of: the measured product temperature and the stirring time.
  • the machine preferably has a stirring unit being arranged for driving the stirring member according to a combination of movements, wherein the combination of movement comprises a first rotational movement of the stirring member about its longitudinal axis which is arranged offset to a central longitudinal axis of the receiving seat and/or of the container and wherein the second rotational movement comprises an orbital or planetary rotational movement about the central longitudinal axis of the container or seat and wherein the output parameters comprise the first velocity ( ⁇ ) of the first rotational movement and the second velocity ( ⁇ 2) of the second rotational movement of the stirring member.
  • An advantage of such a device is that it does not require injection of a gas under pressure to reach a desired overrun, and it can process a single-portion.
  • Recipes 1-2 differ by the quantity of whey protein concentrate (WPC), sugar content, and presence of fruits introduced in the composition during its manufacture.
  • WPC whey protein concentrate
  • Recipe Rl and R2 were prepared first by mixing the milk ingredients. After fermentation, an aqueous HM pectin solution (5% pectin by weight) and an aqueous sugar solution was added to the fermented during storage, before the post- fermentation pasteurisation, as shown on Figure 1. Fruits were added aseptically in the finished product, as shown on Figure 1.
  • Comparative recipe RC3 was prepared using a process as shown on Figure 1, but without addition of WPC. Also, RC3 contains an emulsifier to ensure better foaming of the comparative recipe RC3.
  • liquid dairy compositions are shelf-stable under ambient storage conditions. They are non-foamed. They can be used to produce a foamed dairy product using a Kitchen Aid device or a device described in co-pending application PCT/EP2013/072692 filed on 30 October 2013, or in co-pending European patent application EP 14 167344 filed on 7 May 2014.
  • “Overrun” refers to the increase in volume of a product due to whipping or foaming. It is also referred to as "foaming capacity”. The overrun is measured according to the following equation: (volume of the product after aeration - volume of the product before aeration) / (volume of the product before aeration). In other words, the overrun corresponds to the ratio between the volume of gas and the volume of product before aeration. It is reported as a percentage value.
  • Whipping of the compositions mentioned in Table 1 was performed with a KITCHENAID Artsan K45 (stainless steel bowl of 4.2L, 250W, voltage: 220/240V) (KA) or with a single-portion whipping and cooling device (SP).
  • KITCHENAID Artsan K45 stainless steel bowl of 4.2L, 250W, voltage: 220/240V
  • SP single-portion whipping and cooling device
  • the KA device does not have a cooling function, it was necessary to cool down the composition to 4°C in the refrigerator before whipping. In addition, a minimum of 500 g of composition must be poured into the bowl. Whipping was done at speed 5, using the metal whisk during the time mentioned in Table 2 below. If the room temperature was too high, ice packs were placed on the outside wall of the bowl to keep it cool during whipping.
  • a volume of 100 mL of the composition was poured in a single-portion container, inserted into the device.
  • An 8-wire metal whisk was used for whipping (planetary speed of the whisk oo2: +200 rpm, axial speed of the whisk col: -500 rpm).
  • the temperature of the composition was reduced from ambient temperature (15°C to 20°C) to a temperature of 1°C to 5°C in 3 minutes.
  • the overrun was measured immediately after whipping.
  • compositions Rl and R2 can reach an overrun above 40% in about 2 minutes. With each of these compositions, the single-portion whipping and cooling device provides a greater overrun than the KA device after a 3-minute whipping.
  • Recipe RC3 which does not contain whey protein concentrate, but an emulsifier instead, yields an overrun of 120% after 5 minutes of whipping with KA device.
  • the resulting product is not a beverage anymore, even with a short whipping of only 5 nninutes.
  • compositions which contain whey protein concentrate can be whipped to an overrun of more than 40% in less than 3 minutes (about 2 minutes) and cooled to a chilled temperature of less than 5°C.
  • a foamed liquid dairy product with a very interesting texture and mouthfeel, can be produced, using the single-portion whipping and cooling device, for immediate consumption and enjoyment.
  • Example 3 Foam assessment
  • a foamed yogurt-type product was prepared under the following conditions with the compositions mentioned in Example 1 and the equipment mentioned in Example 2:
  • Air bubbles dispersion are prepared as follows:
  • Disperse and dilute the foam in a dispersion medium using from 0.2 to 4 g of product in 20 g dispersion medium).
  • the dispersion medium is made with 5% of solution A (3 parts pure acetone + 1 part glacial acetic acid) in solution B (glycerol 87%).
  • Fats are stained with Nile red (Sigma # Sigma N3013), 5 mg/100 ml absolute ethanol. Proteins are stained with Fast green FCF (Serva electrophoresis # SVA2129502) 1% in ethanol. An aliquot of the stained whipped product is placed in a 5 mm deep observation chamber and covered with a cover slide. Confocal imaging is done as follows:
  • SP device imparts a different fat and protein distribution than commercial whipping equipment such as a KA device.
  • SP device is leading to a separated location of proteins and fat in the whipped structure which can be identified by confocal microscopy.

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  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Microbiology (AREA)
  • Dispersion Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Nutrition Science (AREA)
  • Dairy Products (AREA)

Abstract

L'invention concerne une composition lactée liquide qui permet de fabriquer une boisson lactée mousseuse, de type smoothie mousseux ou produit de type yaourt liquide mousseux, et son procédé de fabrication.
PCT/EP2016/077510 2015-11-12 2016-11-11 Boisson lactée mousseuse WO2017081305A1 (fr)

Applications Claiming Priority (2)

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EP15194389 2015-11-12

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Cited By (1)

* Cited by examiner, † Cited by third party
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US11191289B2 (en) 2018-04-30 2021-12-07 Kraft Foods Group Brands Llc Spoonable smoothie and methods of production thereof

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JP2007006738A (ja) 2005-06-29 2007-01-18 Calpis Co Ltd 発酵乳飲料の製造法
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US11191289B2 (en) 2018-04-30 2021-12-07 Kraft Foods Group Brands Llc Spoonable smoothie and methods of production thereof

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