CN108713718B - Jelly and production method thereof - Google Patents

Jelly and production method thereof Download PDF

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CN108713718B
CN108713718B CN201810580462.3A CN201810580462A CN108713718B CN 108713718 B CN108713718 B CN 108713718B CN 201810580462 A CN201810580462 A CN 201810580462A CN 108713718 B CN108713718 B CN 108713718B
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parts
jelly
pectin
weight
carrageenan
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CN108713718A (en
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陈旭
叶梓
刘新宇
胡展嘉
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Gu Chuangxin Biotechnology Xiamen Co ltd
Yijia Yuanpin Industrial Xiamen Co ltd
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Yijia Yuanpin Industrial Xiamen Co ltd
Thomson Biotech Xiamen Pte Ltd
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    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, 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
    • A23L21/00Marmalades, jams, jellies or the like; Products from apiculture; Preparation or treatment thereof
    • A23L21/10Marmalades; Jams; Jellies; Other similar fruit or vegetable compositions; Simulated fruit products
    • A23L21/12Marmalades; Jams; Jellies; Other similar fruit or vegetable compositions; Simulated fruit products derived from fruit or vegetable solids
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, 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
    • A23L21/00Marmalades, jams, jellies or the like; Products from apiculture; Preparation or treatment thereof
    • A23L21/20Products from apiculture, e.g. royal jelly or pollen; Substitutes therefor
    • A23L21/25Honey; Honey substitutes
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, 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
    • A23L29/00Foods or foodstuffs containing additives; Preparation or treatment thereof
    • A23L29/20Foods or foodstuffs containing additives; Preparation or treatment thereof containing gelling or thickening agents
    • A23L29/206Foods or foodstuffs containing additives; Preparation or treatment thereof containing gelling or thickening agents of vegetable origin
    • A23L29/231Pectin; Derivatives thereof
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, 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
    • A23L29/00Foods or foodstuffs containing additives; Preparation or treatment thereof
    • A23L29/20Foods or foodstuffs containing additives; Preparation or treatment thereof containing gelling or thickening agents
    • A23L29/206Foods or foodstuffs containing additives; Preparation or treatment thereof containing gelling or thickening agents of vegetable origin
    • A23L29/256Foods or foodstuffs containing additives; Preparation or treatment thereof containing gelling or thickening agents of vegetable origin from seaweeds, e.g. alginates, agar or carrageenan
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/34Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals
    • A23L3/3454Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of liquids or solids
    • A23L3/3463Organic compounds; Microorganisms; Enzymes
    • A23L3/3562Sugars; Derivatives thereof
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, 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
    • A23L33/00Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof
    • A23L33/10Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof using additives
    • A23L33/125Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof using additives containing carbohydrate syrups; containing sugars; containing sugar alcohols; containing starch hydrolysates
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, 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
    • A23L33/00Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof
    • A23L33/20Reducing nutritive value; Dietetic products with reduced nutritive value
    • A23L33/21Addition of substantially indigestible substances, e.g. dietary fibres
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23VINDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
    • A23V2002/00Food compositions, function of food ingredients or processes for food or foodstuffs

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  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Food Science & Technology (AREA)
  • Nutrition Science (AREA)
  • Engineering & Computer Science (AREA)
  • Polymers & Plastics (AREA)
  • Dispersion Chemistry (AREA)
  • Mycology (AREA)
  • Microbiology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Molecular Biology (AREA)
  • Jellies, Jams, And Syrups (AREA)

Abstract

The invention relates to jelly and a production method thereof. Specifically, the invention provides a jelly, which comprises: 2-5 parts of konjac flour, 0.3-3 parts of a gel material, 4-8 parts of honey, 1-5 parts of L-arabinose, 0.5-5 parts of xylan, 1-5 parts of galacto-oligosaccharide, 0.5-4 parts of resistant dextrin and 70-90 parts of water, wherein the gel material comprises pectin and carrageenan, and the weight ratio of the pectin to the carrageenan is 0.8-1.2: 0.3-0.5. The jelly is stable, healthy, delicious and long in shelf life.

Description

Jelly and production method thereof
Technical Field
The invention relates to the field of foods, in particular to jelly and a production method thereof.
Background
The jelly is a jelly food which is processed by taking edible gum, sugar and the like as main raw materials, and is popular with people because of crystal and transparent appearance, bright and various colors, soft, smooth and crisp mouthfeel and fresh, sweet and moist flavor. With the continuous improvement of living standard, consumers pay more and more attention to the nutrition of foods, and the future mainstream of jelly products tends to be natural and functional. The jelly produced in the market at present is mainly fruit-type jelly, namely fruit juice or pulp, such as peach, apple, pineapple, pear or orange and the like, is added in the process of producing the jelly, but most of the sold jellies in the market are added with sugar and artificially synthesized sour agents. The sugar in the jelly is mainly sucrose, and people know that the blood sugar level in human bodies is increased due to excessive intake of sucrose, and the sugar is converted into fat deposition in the human bodies, so diseases such as hyperglycemia, hyperlipidemia and the like are caused. In the jelly, the artificially synthesized sour agent is mainly citric acid, and although the citric acid can increase the taste and flavor of the jelly, due to the existence of an acidity regulator such as the citric acid, gel substances in the jelly under the action of gel are easy to hydrolyze under acidic conditions during the storage process of the jelly, so that the properties of pectin such as elasticity, toughness and chewing strength are reduced, and the quality of the pectin is reduced.
Therefore, there is a need in the art to develop a stable, healthy, tasty and long shelf life jelly.
Disclosure of Invention
The invention aims to provide stable, healthy, delicious and long-shelf-life jelly.
In a first aspect, the present invention provides a jelly, comprising: 2-5 parts of konjac flour, 0.3-3 parts of a gel material, 4-8 parts of honey, 1-5 parts of L-arabinose, 0.5-5 parts of xylan, 1-5 parts of galacto-oligosaccharide, 0.5-4 parts of resistant dextrin and 70-90 parts of water, wherein the gel material comprises pectin and carrageenan, and the weight ratio of the pectin to the carrageenan is 0.8-1.2: 0.3-0.5.
Preferably, the pectin is high methoxyl pectin or low methoxyl pectin.
Preferably, in the high methoxyl pectin, the substitution degree of methoxyl is 60-90%.
Preferably, in the low methoxyl pectin, the substitution degree of methoxyl is 8-20%.
In a second aspect of the invention, there is provided a method for preparing the jelly of the first aspect of the invention, the method comprising the steps of:
(1) mixing the gel material with water, and swelling;
(2) after swelling, adding konjac flour, L-arabinose, xylan, galacto-oligosaccharide and resistant dextrin, stirring and mixing at 50-80 ℃, adding honey, stirring and mixing to obtain a glue solution;
(3) and filling the glue solution into a jelly cup, sterilizing and cooling to obtain a jelly product.
In another preferred example, in the step (3), the sterilization temperature is 90-110 ℃, and the sterilization time is 0.5-2 min.
It is to be understood that within the scope of the present invention, the above-described features of the present invention and those specifically described below (e.g., in the examples) may be combined with each other to form new or preferred embodiments.
Detailed Description
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
In the present invention, the terms "comprising", "including" and "containing" are used interchangeably and refer not only to the closed definition but also to the open definition.
The invention provides a jelly, which comprises: 2-5 parts of konjac flour, 0.3-3 parts of a gel material, 4-8 parts of honey, 1-5 parts of L-arabinose, 0.5-5 parts of xylan, 1-5 parts of galacto-oligosaccharide, 0.5-4 parts of resistant dextrin and 70-90 parts of water, wherein the gel material comprises pectin and carrageenan, and the weight ratio of the pectin to the carrageenan is 0.8-1.2: 0.3-0.5.
In the present invention, "Xylan (Xylan)" is a non-starch polysaccharide produced second to cellulose in nature, and has a main sugar unit of xylose, polymerized from ten or more sugar units, and has an average molecular weight of more than 10000. (plant cell wall polysaccharide is the basic source of human dietary fiber and comprises two major parts of cellulose and hemicellulose, wherein the hemicellulose takes xylan as a main component and is tightly wrapped on the surface of cellulose fiber fibers and accounts for about 30 percent of the dry weight of the cell wall), and the CAS: 9014-63-5.
In the present invention, "L-arabinose" refers to an aldopentose, often in combination with other monosaccharides, present in the form of heteropolysaccharides in plant pulp, colloids, hemicelluloses, pectic acids, heartwood of trees of the family Pinaceae, bacterial polysaccharides, and certain glycosides, CAS: 5328-37-0.
In the present invention, "Galactooligosaccharides (GOS)" is a functional oligosaccharide having natural properties, and the molecular structure thereof is generally that 1 to 7 galactosyl groups, i.e., Gal- (Gal) n-Glc/Gal (n is 0 to 6), are linked to a galactose or glucose molecule. In nature, the milk of animals contains trace GOS, while the human breast milk contains more GOS, so that the establishment of Bifidobacterium flora in infants depends on the GOS component in the breast milk to a great extent.
In the invention, the 'resistant dextrin' is low-calorie glucan processed by starch and belongs to low-molecular water-soluble dietary fiber.
In the present invention, "Pectin" (Pectin) "is a group of polygalacturonic acids having CAS numbers 9000-69-5, which can be classified into high methoxyl Pectin (substitution degree is usually more than 50%) and low methoxyl Pectin (substitution degree is less than 50%) according to the methoxyl substitution degree in Pectin.
In the invention, the carrageenan is formed by connecting sulfated or non-sulfated galactose and 3, 6-anhydrogalactose alternately through alpha-1, 3-glycosidic bond and beta-1, 4-glycosidic bond, the content of total sulfate groups in a polysaccharide chain is 15 to 40 percent, and the sulfate groups enlarge the molecular radius, enhance the rotation resistance and enhance the interaction among molecules, thereby improving the viscosity and the gel strength. The carrageenan has strong stability, the dry powder is not easy to degrade after being placed for a long time, but in an acid solution, the carrageenan is easy to undergo acid hydrolysis, the gel strength and the viscosity are reduced, and the CAS number of the carrageenan is 11114-20-8.
In the invention, the honey is brewed by honey in a honeycomb from flower honey collected by bees from flowers of flowering plants, the honey is a food rich in nutrition, fructose and glucose in the honey are easily absorbed by a human body, and the CAS number of the honey is 8028-66-8. The honey contains mainly monosaccharides such as glucose and fructose, and in addition to glucose and fructose, it also contains more than 20 saccharides such as maltose, isomaltose, kojibiose, melezitose, etc., wherein the content of sucrose is very low, so that the honey has sweet taste, but the contained sugars are beneficial to human health. In addition, Mel has skin caring, antibacterial, antiinflammatory, tissue regeneration promoting, digestion promoting, immunity enhancing, life prolonging, sleep improving, liver protecting, fatigue relieving, children growth promoting, cardiovascular protecting, lung moistening, and cough relieving effects
The invention also provides a preparation method of pectin, which comprises the following steps:
(1) mixing the gel material with water, and swelling;
(2) after swelling, adding konjac flour, L-arabinose, xylan, galacto-oligosaccharide and resistant dextrin, stirring and mixing at 50-80 ℃, adding honey, stirring and mixing to obtain a glue solution;
(3) and filling the glue solution into a jelly cup, sterilizing and cooling to obtain a jelly product.
In another preferred example, in the step (3), the sterilization temperature is 90-110 ℃, and the sterilization time is 0.5-2 min.
The excellent technical effects of the invention comprise:
the invention develops the jelly with excellent taste, flavor and tissue form and long storage life. In the jelly, the adopted L-arabinose, xylan, galacto-oligosaccharide and resistant dextrin can overcome the defect that high-concentration sugar (cane sugar) and an acid regulator and other auxiliary additives need to be added when the jelly is prepared by taking pectin as a main gel, thereby avoiding the adverse effects caused by the addition of high sugar and the acid regulator. In addition, the jelly does not contain sucrose, so that adverse health effects caused by excessive use of sucrose are avoided.
Examples and comparative examples
For comparison, in the examples and comparative examples, the amounts of raw materials and auxiliary materials used in the preparation of jelly are expressed in parts by weight or weight ratio. Wherein the xylan is produced by Guilin fiber biotechnology, Inc., the resistant dextrin is produced by Shandong Jurong bioengineering, Inc., the galactooligosaccharide is produced by Shanghai Ling chemical engineering, Inc., the high methoxyl pectin (degree of substitution is 80%, Anhui Yuning pectin, Inc.), the low methoxyl pectin (degree of substitution is 14.5%, Xinjiang Fufeng biotechnology, Inc)
Example 1
Preparation of jelly
(1) Mixing 1 weight part of high methoxyl pectin, 0.4 weight part of carrageenan and 80 weight parts of water, standing for 6h, and fully swelling.
(2) After swelling, adding 3 parts by weight of konjac flour, 2 parts by weight of L-arabinose, 2 parts by weight of xylan, 2 parts by weight of galacto-oligosaccharide and 1.5 parts by weight of resistant dextrin, stirring at 60 ℃ for 4 hours, adding 5 parts by weight of honey, and stirring and mixing for 1 hour to obtain a glue solution;
(3) filling the glue solution into a jelly cup, sterilizing at 100 ℃ for 1min, and cooling to obtain a jelly product.
Example 2
Preparation of jelly
(1) Mixing 0.8 weight part of high methoxyl pectin, 0.3 weight part of carrageenan and 70 weight parts of water, standing for 6h, and fully swelling.
(2) After swelling, adding 2 parts by weight of konjac flour, 3 parts by weight of L-arabinose, 1 part by weight of xylan, 3 parts by weight of galacto-oligosaccharide and 3 parts by weight of resistant dextrin, stirring at 60 ℃ for 4 hours, adding 4 parts by weight of honey, and stirring and mixing for 1 hour to obtain a glue solution.
(3) Filling the glue solution into a jelly cup, sterilizing at 100 ℃ for 1min, and cooling to obtain a jelly product.
Example 3
Preparation of jelly
(1) Mixing 1.2 weight parts of high methoxyl pectin, 0.4 weight parts of carrageenan and 90 weight parts of water, standing for 6h, and fully swelling.
(2) After swelling, adding 4 parts by weight of konjac flour, 4 parts by weight of L-arabinose, 3 parts by weight of xylan, 4 parts by weight of galacto-oligosaccharide and 3 parts by weight of resistant dextrin, stirring at 60 ℃ for 4 hours, adding 7 parts by weight of honey, and stirring and mixing for 1 hour to obtain a glue solution.
(3) Filling the glue solution into a jelly cup, sterilizing at 100 ℃ for 1min, and cooling to obtain a jelly product.
Example 4
Preparation of jelly
(1) Mixing 1 weight part of low methoxyl pectin, 0.4 weight part of carrageenan and 80 weight parts of water, standing for 6h, and fully swelling.
(2) After swelling, 3 parts by weight of konjac flour, 2 parts by weight of L-arabinose, 2 parts by weight of xylan, 2 parts by weight of galacto-oligosaccharide and 1.5 parts by weight of resistant dextrin were added, stirred at 60 ℃ for 4 hours, 5 parts by weight of honey was added, and stirred and mixed for 1 hour to obtain a gum solution.
(3) Filling the glue solution into a jelly cup, sterilizing at 100 ℃ for 1min, and cooling to obtain a jelly product.
Comparative example 1
Preparation of jelly
(1) Mixing 1 weight part of high methoxyl pectin, 0.4 weight part of carrageenan and 80 weight parts of water, standing for 6h, and fully swelling.
(2) And after swelling, adding 3 parts by weight of konjac flour, stirring at 60 ℃ for 4 hours, adding 5 parts by weight of honey, and stirring and mixing for 1 hour to obtain a glue solution.
(3) Filling the glue solution into a jelly cup, sterilizing at 100 ℃ for 1min, and cooling to obtain a jelly product.
Comparative example 2
Preparation of jelly
(1) Mixing 1 weight part of high methoxyl pectin, 0.4 weight part of carrageenan and 80 weight parts of water, standing for 6h, and fully swelling.
(2) After swelling, 3 parts by weight of konjac flour, 2 parts by weight of xylan and 1.5 parts by weight of resistant dextrin were added, stirred at 60 ℃ for 4 hours, 5 parts by weight of honey was added, and stirred and mixed for 1 hour to obtain a gum solution.
(3) Filling the glue solution into a jelly cup, sterilizing at 100 ℃ for 1min, and cooling to obtain a jelly product.
Comparative example 3
Preparation of jelly
(1) Mixing 1 weight part of high methoxyl pectin, 0.4 weight part of carrageenan and 80 weight parts of water, standing for 6h, and fully swelling.
(2) After swelling, 3 parts by weight of konjac flour, 0.5 part by weight of L-arabinose, 6 parts by weight of xylan, 2 parts by weight of galacto-oligosaccharide and 6 parts by weight of resistant dextrin were added, stirred at 60 ℃ for 4 hours, 5 parts by weight of honey was added, and stirred and mixed for 1 hour to obtain a gum solution.
(3) Filling the glue solution into a jelly cup, sterilizing at 100 ℃ for 1min, and cooling to obtain a jelly product.
Comparative example 4
Preparation of jelly
(1) Mixing 1 weight part of high methoxyl pectin, 0.4 weight part of carrageenan and 80 weight parts of water, standing for 6h, and fully swelling.
(2) And after swelling, adding 3 parts by weight of konjac flour, 75 parts by weight of white granulated sugar and 1.2 parts by weight of citric acid, stirring at 60 ℃ for 4 hours, adding 5 parts by weight of honey, and stirring and mixing for 1 hour to obtain a glue solution.
(3) Filling the glue solution into a jelly cup, sterilizing at 100 ℃ for 1min, and cooling to obtain a jelly product.
Evaluation index
The jelly taste panel consisted of 10 trained and experienced persons, and evaluated the jelly for color, flavor and taste at a uniform time, and after the jelly was left for 3 months, the jelly was evaluated, and the results are shown in table 1,
table 1 evaluation of jelly of examples and comparative examples
Figure BDA0001688366630000061
Results and discussion
From the comparison of the results of examples and comparative examples, it can be seen that the components and processes have a great influence on the quality of jelly, particularly the amount and ratio of L-arabinose, xylan, galactooligosaccharide and resistant dextrin, such as the case of comparative example 1 without L-arabinose, xylan, galactooligosaccharide and resistant dextrin, the case of comparative example 2 without arabinose and galactooligosaccharide and the case of comparative example 3 without appropriate ratio of L-arabinose, xylan, galactooligosaccharide and resistant dextrin, the jelly prepared by adding sucrose and citric acid in comparative example 4 does not meet the quality requirement, although the pectin prepared by adding sucrose and citric acid in comparative example 4 meets the quality requirement at 0 day (except for the sweetness over-sweet), the pectin and carrageenan are continuously degraded during the 3-month storage period due to the citric acid modifier, thereby causing the gel property to be reduced, the pectin has loose structure, uneven texture, reduced elasticity, rough taste, and reduced chewing strength.
Pectin can form elastic gel, the mechanism of forming gel by pectin with different esterification degrees (namely methoxyl substitution degrees) is different, high methoxyl pectin can form gel only in low pH value and high sugar (sucrose) concentration, and the sucrose concentration is generally required to be more than or equal to 35 percent and the pH value is 2.8-4.5. Because the carboxyl can be prevented from dissociating when the pH value is 2.8-4.5, the high hydration and charged carboxyl are converted into uncharged molecules, so that the repulsion among the molecules is reduced, the hydration of the molecules is reduced, and the intermolecular combination and the formation of a three-dimensional network structure are facilitated; the high-concentration sucrose can compete for water molecules, so that the solvation degree of neutral pectin molecules is greatly reduced, and the formation of molecular hydrogen bonds and gel is facilitated. While low methoxyl pectin can form gel only in the presence of divalent metal ions. In the jelly prepared by taking high methoxyl pectin as a main gel material, high-concentration cane sugar and an acidity regulator are often added (as in comparative example 4), but the sweetness of the jelly is excessively sweet due to the addition of the high-concentration sugar, other mouthfeel and flavor of the jelly are covered (as in comparative example 4, the mouthfeel and flavor of konjak are covered due to excessive sweet), and the mouthfeel, the flavor and the tissue morphology of the jelly are poor due to the fact that the pectin and carrageenan are continuously degraded in the storage process due to the addition of the acidity regulator (such as citric acid).
In the embodiment, the fruit jelly with excellent quality can be prepared by adopting the L-arabinose, the xylan, the galacto-oligosaccharide and the resistant dextrin according to certain proportion and dosage in the absence of high-concentration sucrose and an acid regulator. The molecular chains of pectin and carrageenan used for preparing jelly contain a plurality of different groups, L-arabinose, xylan, galactooligosaccharide and resistant dextrin are formed by multi-molecular monosaccharides and also contain a plurality of groups, and the L-arabinose, xylan, galactooligosaccharide and resistant dextrin are used in a combined manner, so that the interaction between the groups of L-arabinose, xylan, galactooligosaccharide and resistant dextrin and the groups of pectin and carrageenan molecular chains can be exerted, the synergistic effect is exerted, the affinity is enhanced, and in the process of preparing jelly, the L-arabinose, xylan, galactooligosaccharide and resistant dextrin can be easily wrapped on the surfaces of charged ions dissociated by pectin to neutralize the charged ions, so that the repulsive force among molecules is inhibited; and the L-arabinose, xylan, galacto-oligosaccharide and resistant dextrin wrap the surfaces of the pectin and the carrageenan, strive for water molecules, reduce the solvation degree of molecular chains of the pectin and the carrageenan, promote the formation of hydrogen bonds between the pectin and the pectin, the carrageenan and the carrageenan, and are favorable for the formation of gel. In comparative examples 2 to 3, improper use of L-arabinose, xylan, galactooligosaccharide and resistant dextrin resulted in weakened bonding with groups on the molecular chains of pectin and carrageenan, and decreased ability to neutralize dotted ions and compete for water molecules, thereby resulting in decreased quality of the prepared jelly.
In addition, during the preparation process of the jelly, the L-arabinose, xylan, galacto-oligosaccharide and resistant dextrin can avoid the use of an acid regulator, and during the storage process, the jelly can not be hydrolyzed due to the absence of acid conditions, so that the stability of the jelly during the storage process is improved.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. It need not be, and cannot be exhaustive of, all embodiments. And obvious variations or modifications derived therefrom are within the scope of the invention.

Claims (3)

1. A jelly, characterized in that it comprises: 2-5 parts of konjac flour, 0.3-3 parts of a gel material, 4-8 parts of honey, 1-5 parts of L-arabinose, 0.5-5 parts of xylan, 1-5 parts of galacto-oligosaccharide, 0.5-4 parts of resistant dextrin and 70-90 parts of water, wherein the gel material comprises pectin and carrageenan, and the weight ratio of the pectin to the carrageenan is 0.8-1.2: 0.3-0.5;
the pectin is high methoxyl pectin;
in the high methoxyl pectin, the substitution degree of methoxyl is 60-90%.
2. A method of preparing the jelly of claim 1, comprising the steps of:
(1) mixing the gel material with water, and swelling;
(2) after swelling, adding konjac flour, L-arabinose, xylan, galacto-oligosaccharide and resistant dextrin, stirring and mixing at 50-80 ℃, adding honey, stirring and mixing to obtain a glue solution;
(3) and filling the glue solution into a jelly cup, sterilizing and cooling to obtain a jelly product.
3. The method of claim 2, wherein in the step (3), the sterilization temperature is 90-110 ℃ and the sterilization time is 0.5-2 min.
CN201810580462.3A 2018-06-07 2018-06-07 Jelly and production method thereof Active CN108713718B (en)

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