EP1713447A4 - Compositions de sterol vegetal particulaire - Google Patents

Compositions de sterol vegetal particulaire

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Publication number
EP1713447A4
EP1713447A4 EP04709929A EP04709929A EP1713447A4 EP 1713447 A4 EP1713447 A4 EP 1713447A4 EP 04709929 A EP04709929 A EP 04709929A EP 04709929 A EP04709929 A EP 04709929A EP 1713447 A4 EP1713447 A4 EP 1713447A4
Authority
EP
European Patent Office
Prior art keywords
composition
peak
plant sterol
microns
particulate plant
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP04709929A
Other languages
German (de)
English (en)
Other versions
EP1713447A1 (fr
Inventor
Michael D Kluetz
Robert L Klein
Stephen K Snyder
Melanie J Goulson
Vincent M Cavallini
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cargill Inc
Original Assignee
Cargill Inc
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 Cargill Inc filed Critical Cargill Inc
Publication of EP1713447A1 publication Critical patent/EP1713447A1/fr
Publication of EP1713447A4 publication Critical patent/EP1713447A4/fr
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/56—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids
    • A61K31/575—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids substituted in position 17 beta by a chain of three or more carbon atoms, e.g. cholane, cholestane, ergosterol, sitosterol
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23D—EDIBLE OILS OR FATS, e.g. MARGARINES, SHORTENINGS, COOKING OILS
    • A23D7/00—Edible oil or fat compositions containing an aqueous phase, e.g. margarines
    • A23D7/005—Edible oil or fat compositions containing an aqueous phase, e.g. margarines characterised by ingredients other than fatty acid triglycerides
    • A23D7/0053—Compositions other than spreads
    • 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
    • A23L33/00—Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof
    • A23L33/10—Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof using additives
    • A23L33/105—Plant extracts, their artificial duplicates or their derivatives
    • A23L33/11—Plant sterols or derivatives thereof, e.g. phytosterols
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K36/00—Medicinal preparations of undetermined constitution containing material from algae, lichens, fungi or plants, or derivatives thereof, e.g. traditional herbal medicines
    • A61K36/18—Magnoliophyta (angiosperms)
    • A61K36/185—Magnoliopsida (dicotyledons)
    • A61K36/75—Rutaceae (Rue family)
    • A61K36/752—Citrus, e.g. lime, orange or lemon
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P3/00—Drugs for disorders of the metabolism
    • A61P3/06—Antihyperlipidemics
    • 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

  • This invention relates to plant sterols, and more particularly to particulate plant sterol compositions having defined particle size distribution (PSD) characteristics, methods for making the same, and food and beverage compositions incorporating the same.
  • PSD particle size distribution
  • Coronary heart disease is a common and serious form of cardiovascular disease that causes a significant number of deaths in the U.S. each year.
  • plant sterols including phytosterols, phytostanols, and esters of the same, can lower total and LDL cholesterol and reduce the risk of CHD.
  • the FDA has authorized the labeling of foods as useful for reducing the risk of CHD when supplemented with plant sterols. Because plant sterols are very hydrophobic compounds, they typically have been incorporated into fat-based foods such as margarines or salad dressings. In other food applications, plant sterols have been mixed with emulsifiers in order to achieve water dispersibility, although often at emulsifier concentrations that can introduce off-flavors and that can significantly dilute the concentration of plant sterols.
  • the invention provides particulate plant sterol compositions and methods for making the same.
  • Particulate plant sterol compositions of the invention are useful for dispersion in aqueous media, including aqueous food and beverage products. When dispersed in aqueous media, such as a juice, the compositions do not impart gritty, chalky, or otherundesirable sensory qualities (i.e. with respect to color, flavor, and mouth feel) to the aqueous media.
  • Methods for preparing the compositions are also provided, including one-pass milling methods that avoid the need for size classification and recycling of undesirably sized particles.
  • the invention provides a composition comprising one or more particulate plant sterols.
  • the composition demonstrates a multi-peak volume-weighted or mass-weighted particle size distribution (PSD) and a multi-peak surface-area-weighted PSD of the one or more particulate plant sterols.
  • PSD volume-weighted particle size distribution
  • PSD surface-area-weighted PSD of the one or more particulate plant sterols.
  • the composition when dispersed in a test juice, has an acceptable mouthfeel in the test juice.
  • a multi-peak volume- or mass-weighted PSD can demonstrate a first peak of particulate plant sterols having a diameter less than 2 microns, with a volume-weighted mean particle diameter of about 0.3 to about 0.5 microns; and a second peak of particulate plant sterols having a diameter in the range from 2 to about 35 microns, with a volume- weighted mean particle diameter of about 8 to about 12 microns.
  • a second peak can represent from about 65% to about 85% of the volume- or mass-weighted PSD, and the first peak can represent from about 15% to about 35% of the volume- or mass-weighted PSD.
  • the volume-percentage of all particulate plant sterols having a diameter greater than 35 microns in a volume- or mass-weighted PSD can be less than about 3%, or less than about 0.5%.
  • a composition provided herein can demonstrate a multi-peak surface area- weighted PSD of the one or more particulate plant sterols.
  • a surface area- weighted PSD can demonstrate a first peak of particulate plant sterols having a diameter less than 2 microns; and a second peak of particulate plant sterols having a diameter in the range from 2 to about 35 microns, where the second peak has a surface-area-weighted mean particle diameter of about 8 to 12 microns.
  • the first peak of particulate plant sterols can represent from about 78% to about 92% of the surface-area weighted PSD.
  • the first peak of particulate plant sterols having a diameter less than 2 microns can have a surface-area weighted mean particle diameter of about 0.5 microns or less.
  • the first peak of particulate plant sterols having a diameter less than 2 microns can have a surface-area weighted mean particle diameter of from about 0.3 microns to about 0.5 microns, or about 0.4 microns.
  • a composition can have a total specific surface area of a multi- peak surface area-weighted PSD of greater than about 2 m /g, from about 2.5 to about 7 m /g, or from about 2.8 to about 6.5 m /g.
  • the invention provides compositions including particulate plant sterols that are dispersible or have been dispersed in an aqueous medium.
  • a composition can be an aqueous composition.
  • a composition is a powdered composition.
  • a composition can be a food or beverage composition.
  • a beverage composition can be selected from the group consisting of a juice, a juice concentrate, coffee, tea, a smoothie, a shake, soy milk, rice milk, a frappe, a milk fluid, a meal replacement beverage, a diet beverage, and a nutritional supplement beverage.
  • a food composition can be selected from the group consisting of a bread, a baked good, candy, ice cream, a confection, an egg, an egg replacement, ice cream, yogurt, a health supplement, a meal replacement food, and a nutritional supplement.
  • a composition that includes a dispersion of one or more particulate plant sterols in an aqueous material can demonstrate no or only a slight detectable chalky mouthfeel.
  • a particulate plant sterol composition can be mixed or dispersed in an aqueous material in order to substantially avoid an undesirable sensory attribute in an aqueous dispersion of particulate plant sterols.
  • An undesirable sensory attribute can be a chalky, gritty, drying, or powdery mouthfeel.
  • the invention provides a process for preparing a particulate plant sterol composition. The process includes cooling a plant sterol starting material; and subjecting the cooled plant sterol starting material to impact or attrition milling.
  • a plant sterol starting material may not include an emulsifier.
  • About 88%-100% (e.g., about 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, or 100% ) by weight of a plant sterol starting material can be 1 or more plant sterols.
  • a plant sterol starting material can include vitamin E and/or tocopherol.
  • a plant sterol starting material can be in the form of pastilles having a diameter of from about 1 mm to about 4 mm, e.g., about 2 mm.
  • a plant sterol starting material can be cooled in the range from about —100 °F to about -275 °F, or from about - 175 to about -250 °F, or to about -225 °F.
  • a plant sterol starting material can be cooled with liquid nitrogen.
  • milling of a plant sterol starting material can be performed in an inert (e.g., N 2 gas) atmosphere.
  • Impact or attrition milling can be performed with a gap mill.
  • a gap mill can have a rotor-stator gap in the range of from about 0.025" to about 0.05", or about 0.03".
  • Impact or attrition milling can be performed in a single pass.
  • a gap mill can have an average tip speed of from about 110 m/s to about 150 m/s, or from about 120 to about 135 m/s.
  • a particulate plant sterol composition can be discharged from a gap mill at a temperature from about -25 to about -275 °F, or at a temperature from about -40 to about -75 °F, or at about -40 to about -50 °F.
  • Impact or attrition milling can be performed in an inert atmosphere.
  • a cooled plant sterol starting material can be subjected to impact or attrition milling in the presence of one or more of the following: a flow agent, a colorant, a flavorant, a vitamin, a mineral, a source of fiber, a protein, and a nutritional additive.
  • the invention provides a process for preparing a particulate plant sterol composition that includes milling a plant sterol starting material in a vortex mill having an inlet air pressure of from about 5 to about 6 bar and an outlet temperature of less than about 100 °F. Milling can be performed at a temperature from about 60 to about 80 °F and can be performed in a single pass and/or in an inert (e.g., N 2 gas) atmosphere.
  • a plant sterol starting material can be as described previously.
  • a plant sterol starting material can be milled in the presence of one or more of the following: a flow agent, a colorant, a flavorant, a vitamin, a mineral, a source of fiber, a protein, and a nutritional additive.
  • the invention provides a method for preparing an aqueous dispersion of a particulate plant sterol composition.
  • the method includes mixing a particulate plant sterol composition with an aqueous material, where the particulate plant sterol composition demonstrates a multi-peak surface area-weighted PSD, as described above.
  • the particulate plant sterol compositions can be dispersed in aqueous media, such as certain food and beverage products, without imparting a gritty or chalky mouthfeel to the product.
  • aqueous media such as certain food and beverage products
  • Methods for preparing particulate plant sterol compositions, including one-pass methods, are also described.
  • Plant Sterol Compounds Particulate compositions provided herein can contain one or more plant sterol compounds.
  • plant sterol includes, without limitation, phytosterols, phytosterol esters, phytostanols, and phytostanol esters.
  • Phytosterols (and phytosterol esters) are typically naturally occurring substances present in the diet as minor components of vegetable oils, while phytostanols (and phytostanol esters) are hydrogenation compounds of the phytosterols.
  • Plant sterols for use herein can include any of various positional isomer and stereoisomeric forms, such as ⁇ -, ⁇ -, or ⁇ - isomers.
  • Typical phytosterol compounds include ⁇ -sitosterol, ⁇ -sitosterol, ⁇ -sitosterol, campesterol, stigmasterol, brassicasterol, spinosterol, taraxasterol, desmosterol, chalinosterol, poriferasterol, clionasterol, ergosterol, ⁇ -5-avenosterol, ⁇ -5-campesterol, clerosterol, ⁇ -5-stigmasterol, ⁇ -7,25- stigmadienol, ⁇ -7-avenosterol, ⁇ -7- ⁇ -sitosterol, and ⁇ -7-brassicasterol.
  • phytosterol esters include, without limitation, ⁇ -sitosterol laurate ester, ⁇ -sitosterol laurate ester, ⁇ -sitosterol laurate ester, campesterol myristearate ester, stigmasterol oleate ester, campesterol stearate ester, ⁇ -sitosterol oleate ester, ⁇ - sitosterol palmitate ester, ⁇ -sitosterol linoleate ester, ⁇ -sitosterol oleate ester, ⁇ -sitosterol myristearate ester, ⁇ -sitosterol ricinoleate ester, campesterol laurate ester, campesterol ricinoleate ester, campesterol oleate ester, campesterol linoleate ester, stigmasterol linoleate ester, stigmasterol laurate ester, campesterol ricinoleate ester, campesterol
  • Useful phytostanol compounds include ⁇ -, ⁇ -, and ⁇ - sitostanol, campestanol, stigmastanol, spinostanol, taraxastanol, brassicastanol, desmostanol, chalinostanol, poriferastanol, clionastanol, and ergostanol.
  • phytostanol esters for inclusion in a composition provided herein include, without limitation, ⁇ -sitostanol laurate ester, campestanol myristearate ester, stigmastanol oleate ester, campestanol stearate ester, ⁇ -sitostanol oleate ester, ⁇ -sitostanol palmitate ester, ⁇ -sitostanol linoleate ester, ⁇ -sitostanol myristearate ester, ⁇ -sitostanol ricinoleate ester, campestanol laurate ester, campestanol ricinoleate ester, campestanol oleate ester, campestanol linoleate ester, stigmastanol linoleate ester, stigmastanol laurate ester, stigmastanol caproate ester, stigmastanol stearate ester, ⁇ -s
  • Plant Sterol Startins Materials Typically, a particulate plant sterol composition is prepared from a plant sterol starting material, e.g., as described in the methods below.
  • Plant sterol starting materials can include one or more plant sterol compounds, as described above.
  • a plant sterol starting material can include multiple plant sterol compounds (e.g., 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 20 or more) in any relative ratio (e.g., 1 :1, 2:1, 3:1, 4:1, 5:1, 6:1, 7:1, 8:1, 9:1, or 10:1).
  • Plant sterol starting materials can be derived from a variety of plant sources, e.g., rice bran oil, com fiber oil, corn germ oil, wheat germ oil, saf ⁇ lower oil, oat oil, olive oil, cotton seed oil, soybean oil, peanut oil, canola oil, tea, sesame seed oil, grapeseed oil, rapeseed oil, linseed oil, tall oil and other oils obtained from wood pulp, and various other brassica crops.
  • plant sterols are typically derived from plants, a plant sterol can also be synthetically prepared, e.g., it need not be derived from a plant source.
  • plant sterol starting materials can be prepared as mixtures of individual purified or synthesized plant sterol compounds or can be co-products resulting from purifications of other products (e.g., from plant sources).
  • a plant sterol starting material can be obtained as a co-product of the manufacture of vitamin E and/or tocopherols from vegetable oil deodorizer distillate.
  • plant sterol starting materials may or may not contain additional ingredients.
  • certain plant sterol starting materials can contain vitamin E and/or one or more tocopherols, e.g., when the starting material is obtained as a co-product of the manufacture of vitamin E.
  • a plant sterol starting material is made up of 1 or more plant sterol compounds.
  • a plant sterol starting material is made up of about 85-90% (e.g., about 85, 86, 87, 88, 89, or 90%) by weight a mixture of ⁇ -sitosterol, campesterol, and stigmasterol.
  • a plant sterol starting material can be made up of about 88%-100% (e.g., about 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, or 100%) by weight a mixture of ⁇ - sitosterol, campesterol, stigmasterol, brassicasterol, campestanol, ⁇ -sitostanol, and ⁇ -5- avenosterol.
  • a plant sterol starting material can be about 89%-91% by weight a mixture of ⁇ -sitosterol, campesterol, stigmasterol, brassicasterol, campestanol, ⁇ - sitostanol, and ⁇ -5-avenosterol.
  • a phytosterol starting material does not include an emulsifier (e.g., lecithin, mono- and/or di-glycerides, soribitan esters, sucrose esters). While not being bound by theory, it is believed that the addition of these ingredients can contribute to unwanted sensory attributes (e.g., with respect to color, flavor, or mouthfeel) of the compositions.
  • a flow agent e.g., sodium aluminosihcate, potassium ferrocyanide
  • a colorant e.g., beta-carotene
  • a vitamin or mineral e.g., vitamins A, C, D, E, and K, and the B vitamins; and the minerals Ca, Fe, Mg, Zn, K, and Se
  • fiber both soluble and insoluble; e.g., barley ⁇ -fiber, oat ⁇ -fiber, mannans, galactomannas, wheat, oat, corn and barley brans
  • a protein e.g., amino acids, soy proteins, milk or egg proteins
  • a nutritional additive e.g., gingko biloba, ginseng, chondroitin, glucosamine, echinacea, chromium picolinate, folic acid, soy isoflavones, citrus flavonoids, saw
  • Plant sterol starting materials can be in any form, e.g., pastilles, waxy crude solids, or powders.
  • plant sterol starting materials can be obtained by crystallization of an impure tocopherol-sterol mixture, which is dried, melted, and formed into pastilles about 1 to about 4 mm (e.g., 1, 2, 3, or 4 mm) in diameter.
  • Plant sterol compounds and plant sterol starting materials can be obtained commercially from, e.g., Cargill, Incorporated (Minneapolis, MN), Loders and Croklaan (Channahon, IL), Cognis Nutrition and Health (La Grange, IL), Forbes Meditech (Nancouver, B.C.
  • plant sterol compounds and starting materials can be synthesized and/or obtained from plant sources (e.g., as described in U.S. Pat. ⁇ os. 6,411,206; 5,502,045; 6,087,353; and 4,897,224).
  • PSD characteristics can be measured with a particle-size analyzer that measures both Mie-scattered and Fraunhofer-diffracted light, e.g., the Horiba Model LA-910 Particle Size Analyzer.
  • particulate plant sterol compositions demonstrate particular volume- or mass-weighted PSD characteristics and particular surface-area-weighted PSD characteristics. Without being bound by theory, it is believed that particulate plant sterol compositions that demonstrate the described PSD characteristics do not impart chalky, gritty, powdery, oily, or other undesirable sensory attributes (i.e., with respect to mouthfeel, flavor, and color) to compositions (e.g., food, beverage, or aqueous compositions) in which they are dispersed.
  • a plant sterol composition can demonstrate a multi-peak volume- or mass-weighted particle size distribution (PSD) of the one or more particulate plant sterols.
  • PSD particle size distribution
  • the term "multi-peak” means that a PSD demonstrates a distribution possessing at least two distinct modes or peak maxima.
  • a multi-peak PSD can be bimodal.
  • a volume- or mass-weighted PSD can demonstrate a first peak of particulate plant sterols having a diameter less than 2 microns, and a volume-weighted mean particle diameter of about 5 microns or less (e.g., about 3 to about 5 microns, or about 0.3, 0.35, 0.4, 0.45, or 0.5 microns).
  • PSD peaks do not imply a time-dependence of appearance or measurement of such peaks nor does it reflect on the magnitude of such peaks.
  • a PSD peak of particulate plant sterols having a diameter less than 2 microns can be referred to herein as a "fines" peak.
  • a first peak in the volume- or mass-weighted PSD can represent from about 15% to about 35% of the total volume- or mass-weighted PSD, or any value therebetween (e.g., about 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, or 34%).
  • a particulate plant sterol composition can demonstrate a volume-or mass-weighted multi-peak PSD having a second peak of particulate plant sterols having a diameter in the range from 2 to about 35 microns.
  • the second peak can have a volume-weighted mean particle diameter of about 8 to about 12 microns, or any value therebetween (e.g., about 8.5, 9, 9.5, 10, 10.5, 11, or 11.5 microns).
  • the second peak can represent from about 65% to about 85% of the total volume- or mass-weighted PSD, or any value therebetween (e.g., about 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, or 84%).
  • the volume-percentage contributed by all particulate plant sterols having a diameter greater than 35 microns in the volume- or mass-weighted PSD is less than about 3% of the total volume- or mass-weighted PSD, e.g., less than about 2.5%, 2%, 1.5%, 1% or 0.5%.
  • Particulate plant sterol compositions described herein also demonstrate a multi- peak surface-area-weighted PSD.
  • a multi-peak surface-area-weighted PSD can be bimodal.
  • a surface-area- weighted PSD can demonstrate a first peak of particulate plant sterols having a diameter less than 2 microns, e.g., a "fines" peak.
  • a first peak of particulate plant sterols having a diameter less than 2 microns (e.g., a "fines" peak) can have a surface-area weighted mean particle diameter of from about 0.3 to about 0.5 microns, e.g., about 0.3, 0.35, 0.4, 0.45, or 0.5 microns.
  • a first peak of particulate plant sterols can represent from about 78% to about 92% of the surface-area weighted PSD.
  • a multi-peak surface- area-weighted PSD can demonstrate a second peak of particulate plant sterols having a diameter in the range from 2 to about 35 microns, with a surface-area weighted mean particle diameter of about 8 to 12 microns (e.g., about 8.5, 9, 9.5, 10, 10.5, 11, or 11.5 microns).
  • the total specific surface area of a PSD can also be a useful parameter for evaluating particulate plant sterol compositions.
  • the total specific surface area of a multi-peak surface area-weighted PSD can be greater than about 2 m /g, e.g., ranging from about 2.5 to about 7 m /g, or from about 2.8 to about 6.5 m 2 /g.
  • Particulate plant sterol compositions can be in a variety of forms, e.g., solid or liquid.
  • a particulate plant sterol composition can be in powdered form, e.g., immediately after preparation or for subsequent dispersion in an aqueous medium.
  • a particulate plant sterol composition can be an aqueous composition having particulate plant sterols dispersed therein.
  • An aqueous composition can be a food or beverage composition that contains water.
  • particulate plant sterol compositions can be dispersed in beverages such as a juice (e.g., a fruit juice such as orange, grape, cranberry, apple, kiwi, mango, peach, pineapple, plum, cherry, banana, guava, papaya, grapefruit, natsudaidai, tangerine, Clementine, mandarin orange, currant, watermelon, honeydew melon, cantaloupe, lemon, lime, pear, blueberry, blackberry, raspberry, or strawberry juice, or a vegetable juice such as tomato, carrot, celery, cucumber, spinach, lettuce, watercress, sprouts, beet, herbs, cabbage, or wheat grass juice , or mixtures of juices), a juice concentrate, coffee, tea, a smoothie, a shake, soy milk, rice milk, a frappe, a milk fluid (e.g., full fat milk, 1% milk, 2% milk, heavy cream, half and half, whipping cream, or light cream), a meal replacement
  • a particulate plant sterol composition can be incorporated in a food composition, e.g., a flour (e.g., a white, wheat, rye, soy, or rice flour), a baked good (e.g., a bread, a donut, a bagel, a muffin, a scone), candy, ice cream, a confection, an egg liquid, a liquid egg replacement, ice cream, yogurt, a health supplement, a meal replacement food, or a nutritional supplement.
  • a particulate plant sterol composition can be first dispersed in a liquid, such as an aqueous composition, and then incorporated into the solid food composition (e.g., breads).
  • the plant sterol composition can be mixed with other solid and/or powdered food compositions (e.g., flours).
  • Processes for Preparing Particulate Plant Sterol Compositions Particulate plant sterol compositions described previously can be prepared using impact- and/or attrition-type milling techniques or jet- or vortex-milling techniques. The described techniques can be performed in a single pass, i.e. without the need for size classification of the mill discharge and recycling of improperly sized material to the mill.
  • a plant sterol starting material, as described above is pre-cooled and then subjected to impact- or attrition-milling.
  • a plant sterol starting material can be cooled in the range from about -100 °F to about -275 °F, or from about - 175 to about -250 °F. In certain embodiments, the plant sterol starting material is cooled to about -225 °F.
  • the plant sterol starting material can be cooled with liquid nitrogen, thereby resulting in an inert (N gas) atmosphere for milling. By pre-cooling the plant sterol starting material, it is believed that the plant sterols become friable and pulverize easily.
  • a pre-cooled plant sterol starting material can be subjected to impact- or attrition- milling in the presence of one or more of the following: a flow agent, a colorant, a flavorant, a vitamin, a mineral, a source of fiber, a protein, or a nutritional additive, as described previously.
  • a pre-cooled plant sterol starting material can be subjected to impact- or attrition-milling in an inert atmosphere, e.g., N 2 gas. Impact- or attrition-milling can be performed with a gap mill.
  • Gap mills typically include a plurality of flat blades arranged around a conical-shaped rotor and a corresponding conical ribbed stator.
  • a rotor-stator gap is in the range of from about 0.025" to about 0.05".
  • the rotor-stator gap is about 0.03".
  • the rotor speed is adjustable so that an average tip speed of from about 110 m s to about 150 m/s is achieved. In certain embodiments, an average tip speed is from about 120 to about 135 m s.
  • Gap mills are available commercially from MicrotecMicrotec (e.g., Microtec- Microtec Gap Mill), Bauerffle (e.g., Bauerffle ASIMA mill), Netzsch, and Hosokawa-Bepex.
  • Impact- and or attrition-type milling techniques do not require the product to pass through a sizing screen.
  • the impact- or attrition-milling e.g., as performed with a gap mill, is performed in a single pass.
  • a particulate plant sterol composition can be discharged, e.g., from a gap mill, at a temperature from about -25 to about -275 °F (e.g., at a temperature from about -40 to about -75 °F, or at a temperature from about -40 to about -50 °F).
  • the composition is discharged at about -75 °F.
  • a plant sterol starting material is milled in a jet- or vortex -mill.
  • the driving force for comminution is derived from the high volumetric flows of high pressure air or other gas, such as N 2 , which will thereby produce an inert atmosphere for milling.
  • Comminution is mainly by particle-particle collisions, and the heat generated in the process is absorbed by the gas cooling upon expansion from, for example, 5 to 6 bar to atmospheric pressure and dissipated by the high gas flow.
  • Particle-particle forces result in fine comminution of the starting material, which does not exit until it has achieved a minimal particle size, according to the design of the chamber and the vortex.
  • Vortex mills are available from SuperFine Ltd., INOX Ltd., and Netzsch, or as described in U.S. Pat. No. 5,855,326.
  • a vortex- or jet-mill can have an inlet air pressure of from about 5 to about 6 bar. Milling can be performed at ambient temperature, e.g., about 60 to about 80 °F.
  • a vortex-mill or jet-mill can have an outlet temperature of less than about 100 °F.
  • milling with a vortex- or jet-mill can be performed in a single pass, and in the presence of one or more of the following: a flow agent, a colorant, a flavorant, a vitamin, a mineral, a source of fiber, a protein, or a nutritional additive, as described previously.
  • Vortex- or jet-milling can be performed in an inert atmosphere. While not being bound by theory, it is believed that the impact/attrition or vortex milling processes described herein do less oxidative degradation damage to the plant sterols in the plant sterol starting material than other methods that employ a melt of the plant sterol starting material and/or allow the starting material to contact air at temperatures from about 300 to 400 °F.
  • the invention also provides a method for preparing an aqueous dispersion of a particulate plant sterol composition.
  • a particulate plant sterol composition is mixed with an aqueous material.
  • the particulate plant sterol composition demonstrates defined multi-peak volume/mass-weighted and surface area-weighted PSDs, as described previously.
  • the dispersion can be heated gently (e.g., to 90 to 212 °F) for a brief period of time (e.g., 1 sec to 1 min), and/or homogenized. See, e.g., US patent publication no. 2003/0232118 Al .
  • the invention provides a method for preparing a dispersion of a particulate plant sterol composition.
  • a particulate plant sterol composition is homogenized with a pulp.
  • a pulp can be any type of pulp, including, without limitation, fruit and vegetable pulps, such as citrus pulp (e.g., orange, lime, lemon, and grapefruit pulp); apple pulp; pear pulp; plum pulp, peach pulp; cherry pulp, mango pulp; guava pulp; papaya pulp; and assorted berry pulps.
  • a pulp can contain about 2-8% pectin, or any value therebetween (e.g., about 2, 3, 4, 5, 6, 7, or 8%). In certain cases, a pulp containing about 5% pectin can be used.
  • Water may be included in the homogenization process to help fluidize the pulp. If water is used, the ratio of water to pulp can be about 1 :1 to about 4:1, or any value therebetween (e.g., about 1.5:1, 2:1, 2.5:1, 3:1, or 3.5:1). In certain cases, a ratio of 3:1 of water to pulp is used.
  • Particulate plant sterols can be included at about 1% to about 10% by total weight of a water/pulp/particulate plant sterol mixture prior to homogenization, or any value therebetween (e.g., about 1.2, 1.5, 1.8, 2, 2.2, 2.5, 2.8, 3, 3.2, 3.5, 3.8, 4, 4.2, 4.5, 4.8, 5, 5.2, 5.5, 5.8, 6, 6.2., 6.5, 6.8, 7, 7.2, 7.5, 7.8, 8, 8.2, 8.5, 8.8, 9, 9.2, 9.5, or 9.8% by weight).
  • particulate plant sterol compositions can be included at about 2- 3% by weight.
  • a pulp, water, and a particulate plant sterol composition can be mixed prior to homogenization.
  • a pulp, water, and a particulate plant sterol composition can be pre-mixed with high shear (e.g., about 10,000 rpm) using a bench top mixer. Premixing can occur until the particulate plant sterol compositions are well dispersed in the pulp/water mixture, e.g., about 1 to 10 minutes, or about 5 minutes.
  • the pulp/water/particulate plant sterol mixture can then be homogenized.
  • the pulp/water/particulate plant sterol mixture can be homogenized in more than one stage.
  • the pulp/water/particulate plant sterol mixture can be homogenized in two stages.
  • the pulp/water/particulate plant sterol mixture is homogenized at about 3000-5000 psi in a first stage, and then homogenized at about 300-800 psi in a second stage.
  • the pulp/water/particulate plant sterol mixture is homogenized at 4500 psi in a first stage and 500 psi in a second stage. Multiple passes can also be used.
  • a homogenized pulp/water/particulate plant sterol mixture can deliver about 0.5 to about 1.5 g, or any value therebetween (e.g., about 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2, 1.3, or 1.4 g) of particulate plant sterols per 10 g of pure pulp (e.g., without added water, wet basis).
  • a homogenized pulp/water/particulate plant sterol composition mixture can be incorporated in a food or beverage composition, as described previously.
  • a homogenized pulp/water/particulate plant sterol mixture can be added to an aqueous medium (as described previously), and mixed to result in an aqueous dispersion of particulate plant sterols.
  • an aqueous medium can be a juice, such as a single strength juice such as orange juice or cranberry juice.
  • an aqueous medium can include water, a homogenized pulp/water/particulate plant sterol mixture, and a fruit or vegetable juice concentrate.
  • An aqueous dispersion can contain about 0.3 g to about 1.8 g (or any value therebetween, e.g., about 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, or 1.7) of particulate plant sterols per serving (typically, 6-12 oz.). While not being bound by any theory, it is believed that pulp, or some component of pulp such as pectins or terpenes, effectively homogenizes particulate plant sterol compositions, resulting in good dispersion, viscosity, and stabilization of the homogenized particulate plant sterol compositions.
  • compositions when incorporated in an aqueous medium, have favorable mouthfeel and sensory characteristics (e.g., they are not chalky, oily, gritty, or astringent; and demonstrate no or minimal ringing, separation, or appearance of white flecked particulates, known as "floaters").
  • Example 1 Preparation of Spray-Prilled Particulate Plant Sterols (SP-1) 5 kg of 2 mm diameter sterol pastilles (Cargill, Incorporated, 90% by weight a mixture of ⁇ -sitosterol, campesterol, stigmasterol, brassicasterol, campestanol, ⁇ - sitostanol, and ⁇ -5-avenosterol) were melted in a Parr reactor and forced under a N 2(g) pressure of 35 psig into a Spraying Systems, Inc.
  • SP-1 Spray-Prilled Particulate Plant Sterols
  • the calculated specific area of the overall material was 1.1 m /g.
  • the product from Example 1 was incorporated at a level of 4.25 g/L into orange juice (see Example 9). Sensory evaluation of the juice proved it to be unacceptably "powdery/chalky" in mouthfeel, giving a drying sensation in the mouth.
  • Example 2 Preparation of Crvo-Milled Particulate Plant Sterols (CG-79.
  • Sterol pastilles (as described above) 2 mm in diameter were cooled in-line to an inlet temperature of about -175 °F before entering a Microtec Model 200 "Gap" Mill with a 0.030" gap.
  • the pre-cooled sterol pastilles were milled in a single pass at a feed rate of about 465 #/hr and a rotor speed of 12,000 rpm.
  • the mill discharge temperature was -45 to -50 °F.
  • the product was analyzed on a Horiba LA-910 Particle Size Analyzer. See Table I.
  • CG-79 was evaluated in the orange juice test described in Examples 1 and 9. The product was evaluated as not acceptable.
  • Example 3 Preparation of Crvo-Milled Particulate Plant Sterols (CG-56 Sterol pastilles (as described above) 2 mm in diameter were cooled in-line to an inlet temperature of about -245 °F before entering a Microtec Model 200 "Gap" Mill with a 0.030" gap.
  • the pre-cooled sterol pastilles were milled in a single pass at a feed rate of about 630 #/hr and a rotor speed of 12,000 rpm.
  • the mill discharge temperature was -75 °F.
  • the product was analyzed on a Horiba LA-910 Particle Size Analyzer (see Example 8). See Table I.
  • Example 4 Preparation of Crvo-Milled Particulate Plant Sterols (CG-522) Sterol pastilles (as described above) 2 mm in diameter were cooled in-line to an inlet temperature of about -225 °F before entering a Microtec Model 200 "Gap" Mill with a 0.030" gap.
  • the pre-cooled sterol pastilles were milled in a single pass at a feed rate of about 500-550 #/hr and a rotor speed of 12,000 ⁇ m. Single pass milling was performed for about 3.5 hr total (1700# of sterol pastilles).
  • the product was analyzed on a Horiba LA-910 Particle Size Analyzer. The mill discharge temperature was -75 °F. See Table I.
  • Example 5 Preparation of Votex -Milled Particulate Plant Sterols (SF-1) Sterol pastilles (as described above) 2 mm in diameter were drawn at a rate of about 4 kg/hr into a 6"D SuperFine, Ltd. Vortex Mill with no cooling of the material.
  • the driving force for the mill was an inlet stream of air at a pressure of about 5.5 bar.
  • the product was analyzed on a Horiba LA-910 Particle Size Analyzer. See Table I.
  • the product from Example 5 was inco ⁇ orated into orange juice, as described in Examples 1 and 9. The material was rated excellent in the test juice application, with no detectable "powdery/chalky" mouthfeel or mouth-drying effect.
  • Example 6 Characterization of Spray-Prilled, Crvo-Milled, and Vortex-Milled Particulate Plant Sterols Samples SP-1, CG-79, CG-56, CG-522, and SF-1 were analyzed on a Horiba LA- 910 Particle Size Analyzer and the distribution of particles plotted as either volume (or mass)-weighted PSD vs. particle diameter or surface area-weighted PSD vs. particle diameter. Each composition's total specific surface area was also calculated from the particle size distribution. Results are set forth in Table I below.
  • Example 7 Sensory Evaluation of Particulate Plant Sterols in Orange Juice
  • the mouthfeel, flavor, and color/appearance of orange juice containing SP-1, CG- 56, and SF-1 particulate plant sterol compositions at a concentration of 1 g 8 oz (240 mL) (see Example 9) were evaluated as blind, coded samples by a panel of 9 sensory judges in a round table discussion. None of the panelists had been trained specifically for this evaluation. The panelists were asked to describe the sensory characteristics of each sample, with special emphasis on mouth feel. SF-1 was determined to be the least chalky and most acceptable in terms of mouthfeel. The results are summarized in Table II.
  • Example 8 Particle Size Analysis Particle size analysis of particulate plant sterol compositions was performed on a Horiba LA-910 Particle Size Analyzer as follows. Powdered particulate plant sterol samples were shaken in a bag to mix thoroughly. A balance was tared with a 15 mL conical tube on it, and 0.05-0.1 grams of sample was added to the 15 mL conical tube. Water was added to the 5 mL mark of the 15 mL conical tube. 6 drops of Triton X-100 (EM Science, CAS 9002-93-1) was added to the 15 mL conical tube using a disposable transfer pipet, and the conical tube was placed in an ultrasonic bath.
  • Triton X-100 EM Science, CAS 9002-93-1
  • the mixture was stirred with a spatula, and resonicated for another 4 minutes.
  • the 15 ml conical tube was shaken 3 times.
  • the contents of the 15 mL conical tube were transferred to a 7 mL tissue grinder.
  • the sample was plunged 3 times using the pestle.
  • a disposable 5 3 / 4 " borosilicate glass Pasteur pipet inserted halfway into the liquid in the tissue grinder, A of a Pasteur pipet full of liquid was removed. All of the liquid in the Pasteur pipet was then dispensed into the instrument sample chamber containing 300 mL of DI water.
  • the sample chamber was sonicated for 1 minute, and the particle size distribution data acquired.
  • Analysis of Standard A prepackaged standard solution (Duke Scientific Co ⁇ . 0.5 ⁇ m Particle Counter Size Standards or Duke Scientific Co ⁇ . 5.0 ⁇ m Particle Counter Size Standards) was added to the instrument sample chamber containing 100 mL of DI water until the %Transmittance was below 95%. The sample chamber was sonicated for 1 minute. The particle size distribution data was then acquired.
  • Example 9 Preparation of Homogenized Pulp and Particulate Plant Sterol Compositions and Dispersion into Test Juices
  • the following process was used to produce orange juice (from concentrate) containing lg particulate plant sterols per 240 mL: Pulp Preparation % by weight Orange pulp 24.30 Water 72.89 Particulate plant sterols (e.g.. CG-522. SF-1) 2.81 Total 100.00
  • the pulp, water, and sterol mixture was premixed with high shear (10,000 ⁇ m) for 5 minutes using a bench top high shear mixer (PowerGen 1800D, Fisher Scientific).
  • the premixed pulp, water, and sterol mixture was then homogenized (bench top homogenizer Model 15, APV Gaulin, Inc.) in two stages at 4500/500 psi.

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Abstract

Compositions de stérol végétal particulaire possédant des caractéristiques granulométriques définies. Des procédés de préparation des compositions et des procédés de dispersion des compositions dans des milieux aqueux sont également décrits.
EP04709929A 2004-02-10 2004-02-10 Compositions de sterol vegetal particulaire Withdrawn EP1713447A4 (fr)

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EP1549159B1 (fr) 2002-06-12 2008-11-12 The Coca-Cola Company Boissons contenant des sterols vegetaux
US7306819B2 (en) 2002-06-12 2007-12-11 The Coca-Cola Company Beverages containing plant sterols
JP4717413B2 (ja) * 2004-10-22 2011-07-06 森永乳業株式会社 脂質代謝改善用組成物
CL2009000409A1 (es) * 2009-02-23 2009-05-04 Rojas Alejandro Markovits Proceso para obtener una dispersión de fitoesteroles sólidos en agua.
US8673382B2 (en) 2009-11-23 2014-03-18 Tropicana Products, Inc. Thick juice beverages
US10334870B2 (en) 2010-10-07 2019-07-02 Tropicana Products, Inc. Processing of whole fruits and vegetables, processing of side-stream ingredients of fruits and vegetables, and use of the processed fruits and vegetables in beverage and food products
CN102630754A (zh) * 2012-04-18 2012-08-15 内蒙古蒙牛乳业（集团）股份有限公司 辅助降血脂功能的复方液态乳制品及其制备方法
WO2014126806A1 (fr) 2013-02-15 2014-08-21 Pepsico, Inc. Préparation et incorporation de coproduits dans des boissons pour en améliorer les propriétés nutritives et organoleptiques

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US4195084A (en) * 1977-01-07 1980-03-25 Eli Lilly And Company Taste-stable aqueous pharmaceutical suspension of tall oil sitosterols and a method for the preparation thereof
WO2000045648A1 (fr) * 1999-02-03 2000-08-10 Forbes Medi-Tech Inc. Procede de preparation de microparticules constituees de phytosterols ou de phytostanols
US6129944A (en) * 1996-09-27 2000-10-10 Suomen Sokeri Oy Product, a method for its production, and its use
EP1142494A1 (fr) * 2000-04-06 2001-10-10 Kraft Foods, Inc. Microbroyage de stéroles de plantes et d'émulsifiants
WO2002028204A1 (fr) * 2000-09-30 2002-04-11 Eugene Science Inc. Procede de dispersion de sterol vegetal pour boisson et boisson a dispersion de sterols vegetaux dont la dimension granulometrique est de l'echelle du nanometre

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US4897224A (en) * 1985-03-05 1990-01-30 Morinaga Milk Industry Co., Ltd. Method for producing ferulyl stanol derivatives

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Publication number Priority date Publication date Assignee Title
US4195084A (en) * 1977-01-07 1980-03-25 Eli Lilly And Company Taste-stable aqueous pharmaceutical suspension of tall oil sitosterols and a method for the preparation thereof
US6129944A (en) * 1996-09-27 2000-10-10 Suomen Sokeri Oy Product, a method for its production, and its use
WO2000045648A1 (fr) * 1999-02-03 2000-08-10 Forbes Medi-Tech Inc. Procede de preparation de microparticules constituees de phytosterols ou de phytostanols
EP1142494A1 (fr) * 2000-04-06 2001-10-10 Kraft Foods, Inc. Microbroyage de stéroles de plantes et d'émulsifiants
WO2002028204A1 (fr) * 2000-09-30 2002-04-11 Eugene Science Inc. Procede de dispersion de sterol vegetal pour boisson et boisson a dispersion de sterols vegetaux dont la dimension granulometrique est de l'echelle du nanometre

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Title
See also references of WO2005087200A1 *

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WO2005087200A1 (fr) 2005-09-22

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