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Liquid nutritional compositions containing unsaturated fatty acids

a technology of unsaturated fatty acids and nutritional compositions, which is applied in the field of unsaturated fatty acid-containing liquid nutritional compositions, can solve the problems of oxidation of polyunsaturated fatty acids, development of undesirable off-flavors and odors, and eventual degradation of beneficial polyunsaturated fatty acids, so as to improve the overall product performance, improve the oxidative stability, and improve the effect of flavor and aroma

Inactive Publication Date: 2013-03-28
ABBOTT LAB INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0013]The present invention is directed to liquid nutritional compositions comprising fish or other similar oils, and which provide improved oxidative stability, flavor, and aroma. The liquid nutritional compositions comprise (A) a carbohydrate component, (B) a lipid component having from about 0.1% to about 10% of an n-3 polyunsaturated fatty acid, n-6 polyunsaturated fatty acid, or combinations thereof, by weight of the composition, (C) a protein component having from about 15% to about 50% of a whey protein fraction by weight of the total protein in the composition, and (D) and a limonene-containing material.
[0014]It has been found that liquid nutritionals containing relatively high concentrations of fish or other similar oils containing polyunsaturated fatty acids can be formulated to provide improved oxidative stability, flavor, aroma, and overall user acceptability or tolerance. It has been found that by selecting a protein matrix comprising from about 15% to about 50% of a whey protein fraction by weight of the total protein, in combination with a limonene-containing material, that the off-flavor and aroma commonly associated with high concentrations of fish or other similar oils can be effectively minimized or avoided. This has been found to be especially effective when the polyunsaturated fatty acid concentration exceeds about 0.5% by weight of the liquid composition.
[0016]It has also been found that limonene-containing materials can be added to or substituted with one or more of cranberry oil, peppermint oil, rosemary oil, or ginger oil, although it too is not entirely understood as how it interacts and works with the protein matrix as defined herein to provide the requisite product benefits.
[0017]It has also been found that the compositions of the present invention provide improved oxidative stability, flavor, and aroma during prolonged storage, when prepared by aseptic packaging methods. Although the compositions of the present invention can be prepared by more conventional retort sterilization methods, it has been found that aseptic packaging of these formulations results in even better overall product performance.

Problems solved by technology

These polyunsaturated fatty acids, however, tend to be more sensitive to oxidation than many other ingredients commonly found in nutritional formulas.
These free radicals can continue to break down the polyunsaturated fatty acids in an auto-oxidative process, which results in the development of undesirable off-flavors and odors and the eventual degradation of the beneficial polyunsaturated fatty acids.
These polyunsaturated fatty acids are especially susceptible to oxidation when subjected to elevated temperatures during processing or storage.
Oxidative stability has become especially challenging when formulating a nutritional liquid containing the relatively high concentrations of polyunsaturated fatty acids often needed to obtain a therapeutic response.
Allowing even some oxidation in these products often results in a highly objectionable flavor and aroma, the characteristics of which are often described as fishy, eggy, or otherwise having a rancid flavor or smell, depending upon the particular polyunsaturated fatty acid used in the formulation.
Although these methods are often highly effective in reducing much of the undesirable oxidation that would otherwise occur, they are often not as effective when applied to liquid nutritional compositions that contain the relatively high polyunsaturated fatty acid concentrations often needed to achieve a desired therapeutic effect.

Method used

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Examples

Experimental program
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examples

[0059]The following examples illustrate specific embodiments of the nutritional compositions and methods of the present invention, including some suitable techniques to prepare the compositions. The examples are given solely for the purpose of illustration and are not to be construed as limitations of the present invention, as many variations thereof are possible without departing from the spirit and scope of the invention.

[0060]Examples 1-4 illustrate nutritional liquid embodiments of the present invention. The ingredients for each exemplified composition are described in the following tables. All ingredient amounts are listed as kg per 1000 kg batch of product, unless otherwise specified.

example 1

Ingredient Listing—Liquid Nutritional

[0061]

kg perIngredient1000 kgWaterQ.S.Sucrose60.9High oleic safflower oil39.8Milk protein isolate33.4Acid casein9.44Magnesium phosphate dibasic6.74Whey protein concentrate5.28Micronized-tri calcium phosphate4.27Avicel4.00Lemon cream4.00Sodium chloride2.11Soy lecithin1.66Potassium citrate1.63Sodium citrate1.05Lemon oil0.500Carrageenan - Viscarin SD-3890.400Sensient Tumeric Concentrate #32850.200Sodium Hydroxide0.196Liquid Sucralose0.175Ascorbyl palmitate0.0498Acesulfame potassium0.0350Pyridoxine hydrochloride (B6)0.0299Tocopherol-2 antioxidant0.00830Folic Acid0.00500Vitamin D30.00300Cyanocobalamin0.000337Vitamin K0.000214

example 2

Ingredient Listing—Liquid Nutritional

[0062]

kg perIngredient1000 kgIngredient waterQ.S.Borage oil61.1Marine oil53.4Milk protein isolate30.4Sucrose11.7Whey protein concentrate8.41Gum arabic8.00Soy lecithin4.77Cellulose gum4.00Potassium citrate2.64Orange Cream Flavor2.50Ascorbic acid1.13Turmeric powder1.00Sodium citrate0.901Potassium hydroxide 45% solution0.799Orange Oil0.750Natural Vitamin E0.645Micronized tri calcium phosphate0.631Tocopherol-2 antioxidant0.600Taurine0.456Vanilla0.400Liquid Sucralose 25% solution0.375Zinc Sulfate0.251Ascorbyl palmitate0.143Sodium chloride0.143Acesulfame potassium0.0750Cupric sulfate0.0177FD&C Red #30.0150Beta carotene (30%)0.00992Vitamin A palmitate0.00315Sodium molybdate0.000529Sodium selenate0.000441

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Abstract

Disclosed are liquid nutritional compositions comprising: carbohydrate; lipid having from about 0.1% to about 20% of an n-3 polyunsaturated fatty acid, n-6 polyunsaturated fatty acid, or combinations thereof by weight of the composition; a protein matrix having from about 15% to about 50% of a whey protein fraction by weight of the total protein in the composition; and a limonene-containing material, cranberry oil, or combinations thereof. The compositions are preferably aseptically packaged, and provide enhanced oxidative stability, flavor, and aroma, especially when formulated with relative high polyunsaturated fatty acid concentrations.

Description

[0001]This application claims the benefit of U.S. Provisional Application No. 60 / 699,017 filed Jul. 13, 2005[0002]The present invention relates to liquid nutritional compositions containing polyunsaturated fatty acids having improved oxidative stability, flavor and aroma.BACKGROUND OF THE INVENTION[0003]Nutritional formulas today are well known for a variety of nutritional or disease specific applications in infants, children and adults. These formulas most typically contain a balance of proteins, carbohydrates, lipids, vitamins, and minerals tailored to the nutritional needs of the intended user, and include product forms such as ready-to-drink liquids, reconstitutable powders, nutritional bars, and many other forms.[0004]Many nutritional formulas also commonly contain a variety of polyunsaturated fatty acids (PUFA) as part of the lipid component of the overall nutrient system, examples of which include omega-3 (n-3) fatty acids such as alpha-linolenic acid (C18:3n-3), stearidonic ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A23L1/30A23L27/12
CPCA23C11/04A23L1/2225A23L1/3008A23L1/3056A23L2/52A23V2002/00A23V2200/30A23V2250/54252A23V2250/1882A23V2200/16A23L27/13A23L33/12A23L33/19
Inventor DEWILLE, NORMANELLA T.OGILVIE, ALLISONRODGERS, WILLIAM J.WEARLY, DOUGLAS J.
Owner ABBOTT LAB INC
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