CN108065168A - A kind of steamed bean curd roll composite antistaling agent and its preparation and application based on microcapsules technology - Google Patents

A kind of steamed bean curd roll composite antistaling agent and its preparation and application based on microcapsules technology Download PDF

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CN108065168A
CN108065168A CN201711376481.6A CN201711376481A CN108065168A CN 108065168 A CN108065168 A CN 108065168A CN 201711376481 A CN201711376481 A CN 201711376481A CN 108065168 A CN108065168 A CN 108065168A
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antistaling agent
bean curd
curd roll
microcapsules
steamed bean
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CN108065168B (en
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金兴仓
熊丹
徐永苗
金锋
陆庆方
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Suzhou Jinji Foods Co Ltd
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Suzhou Jinji Foods Co 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
    • 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
    • A23L3/3481Organic compounds containing oxygen
    • A23L3/3508Organic compounds containing oxygen containing carboxyl groups
    • 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
    • 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
    • A23L3/3472Compounds of undetermined constitution obtained from animals or plants
    • 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
    • A23L3/3481Organic compounds containing oxygen
    • A23L3/3508Organic compounds containing oxygen containing carboxyl groups
    • A23L3/3517Carboxylic acid esters
    • 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
    • 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
    • A23L3/358Inorganic compounds
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23PSHAPING OR WORKING OF FOODSTUFFS, NOT FULLY COVERED BY A SINGLE OTHER SUBCLASS
    • A23P10/00Shaping or working of foodstuffs characterised by the products
    • A23P10/30Encapsulation of particles, e.g. foodstuff additives
    • 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
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/90Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation

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Abstract

The present invention provides a kind of steamed bean curd roll composite antistaling agent and its preparation and application, preparation method based on microcapsules technology:Nano liposomes are formed after the soft phosphatide of soybean is mixed with cholesterol, add in the chloroformic solution containing clove oil and firewood grass extract, for ultrasound while chitosan solution is added dropwise, rotary evaporation obtains the antistaling agent containing microcapsules on one side;After lactic acid is added to the water, sodium Diacetate, alum, ε polylysine hydrochlorides are sequentially added, is mixed up to the antistaling agent containing lactic acid;The two forms the steamed bean curd roll composite antistaling agent based on microcapsules technology.Then the antistaling agent containing microcapsules and the antistaling agent containing lactic acid respectively pre-process steamed bean curd roll core and skin, steamed bean curd roll post-processes after preparing completion through the antistaling agent containing lactic acid, obtains finished product.The inside and outside of steamed bean curd roll prepared by the present invention all contains antistaling agent, can both prevent from being encroached on be subject to microorganism in environment, can also slowly discharge antimicrobial component during transporting and preserving, further improve the fresh-keeping timeliness of steamed bean curd roll.

Description

A kind of steamed bean curd roll composite antistaling agent and its preparation and application based on microcapsules technology
Technical field
The invention belongs to steamed bean curd roll antistaling agent field of material technology, and in particular to a kind of steamed bean curd roll compounding based on microcapsules technology Antistaling agent and its preparation and application.
Background technology
Bean product are non-fermented type packaging bean products, are using soybean as raw material, pass through instant food made of certain technique Product mainly have the kinds such as soft beancurd, dry bean curd, steamed bean curd roll, plain chop, the old dry, vegetarian ham of oil, and soybean-source is extensive, contains in soybean Abundant protein, oil quality is excellent, and unrighted acid accounts for more than 80%, and linoleic acid average content reaches necessary to human body 50.8%, and soybean is easily absorbed by the body, and digestibility is up to 9.75%, and having prevents cholesterol from depositing, preventing in the blood vessel The only effect of arteriosclerosis.Therefore, bean product are wide in variety with its, convenient, features good taste, and nutritive value is high, becomes People house, the indispensable food of tourism, it is very popular.
But the processing technology of bean product is simple at present, mostly based on the production of homecraft workshop, not only yield is few, but also Processing environment is simple and crude, and sanitary condition is poor, and bean product is caused easily to be polluted be subject to microorganism, and Keep the quality and freshness is into main problem. Enterprise is mostly to improve the storage period of bean product by adding chemical preservative at present, fresh-keeping even with excessive non-edible-type Agent or high-temperature sterilization, radiation, refrigeration, sterilization processing by way of, these preservation methods are not only difficult to keep bean product Original flavor, and bargain price is expensive, adds cost or even the health of harmful to human.Chinese patent CN 1315406C A kind of disclosed bean product preservation technology and fresh-keeping coagulator, the preservation method are citric acid, lactic acid, the winestone with chitosan Acid, malic acid, the acid solution of acetic acid and phosphoric acid replace some or all of traditional coagulator, in acid coagulant δ-Portugal It is bean curd solidification under the action of grape saccharic acid lactones, is homogeneously added into preservative material chitosan during bean curd solidifies Into bean curd, the effective shelf-life for extending bean curd and shelf life.Chinese patent CN 101756341B are disclosed non-for tradition The antistaling agent and preservation method of fermented bean products, the antistaling agent for preparing of the present invention include antistaling agent A and antistaling agent B, in antistaling agent A Including nisin, potassium sorbate, vitamin C and water, antistaling agent B is that lactic acid/citric acid/acetic acid of chitosan-containing is water-soluble Liquid, application method are that after antistaling agent A and antistaling agent B are boiled cooling respectively, antistaling agent A first is sufficiently impregnated bean product or spray It drenches on the surface of bean product, drains, antistaling agent B is then sufficiently impregnated bean product or spray in the surface of bean product, drip again It is dry.The antistaling agent is using synergistic principle and film-forming principle, utilizes the sterilization antibacterial of natural active matter, anti-oxidant Property and film forming, realize it is synergistic, have complementary advantages, realize that bean curd insures 8 days, guarantees the quality 10 days.Chinese patent CN A kind of biological preservative and application disclosed in 102406217B and bean product antiseptic fresh-keeping technology, the biological preservative include Honeysuckle, folium artemisiae argyi, Asiatic plantain, the water extract of rabdosia lophanthide and dandelion Chinese herbal medicine, after middle medicinal herbs water extract is diluted, by beans Product impregnates boil in the solution, further takes out drying, obtains finished product.From the above-mentioned prior art, in order to find both green peaces Complete and effective bean product preservative, natural green antibacterial material become the research hotspot of bean product preservative, but at present Antistaling agent is in the majority both for all bean product or for the research in terms of beancurd fresh keeping, for the antistaling agent side of steamed bean curd roll The research in face is actually rare, and steamed bean curd roll is different from bean curd, is using the skin of soya-bean milk as major ingredient, and moisture is low, and quality is close, will not be as beans It is rotten broken like that, therefore easily it is subject to larger load-bearing and extruding in transportational process, Conservation environment also has very big difference, It is more prone to be polluted be subject to microorganism, therefore specific steamed bean curd roll antistaling agent also seems very necessary.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of steamed bean curd roll composite antistaling agents and its system based on microcapsules technology Standby and application method with nano liposomes and is shell, and clove oil and firewood grass extract are core preparation containing the fresh-keeping of microcapsules Agent pre-processes steamed bean curd roll core, with lactic acid, sodium Diacetate, alum, epsilon-polylysine hydrochloride prepare containing the fresh-keeping of lactic acid Agent pre-processes steamed bean curd roll skin;Steamed bean curd roll post-processes after preparing completion through the antistaling agent containing lactic acid, obtains finished product.Present invention system The inside and outside of standby steamed bean curd roll all contains antistaling agent, can both prevent from being encroached on be subject to microorganism in environment, can also transport Antimicrobial component is slowly discharged during defeated and preservation, further improves the fresh-keeping timeliness of steamed bean curd roll.
In order to solve the above technical problems, the technical scheme is that:
A kind of steamed bean curd roll composite antistaling agent based on microcapsules technology, which is characterized in that the element based on microcapsules technology Chicken composite antistaling agent include the antistaling agent containing microcapsules and the antistaling agent containing lactic acid, the antistaling agent containing lactic acid include lactic acid, Sodium Diacetate, alum and epsilon-polylysine hydrochloride, in the antistaling agent containing microcapsules the shell of microcapsules for chitosan and Nano liposomes, sandwich layer are clove oil and firewood grass extract.
As the preferred of above-mentioned technical proposal, the component in the antistaling agent containing lactic acid, by weight percentage, water 82%-89%, lactic acid 10%-15%, sodium Diacetate 1%-2%, alum 0.5%-1%, epsilon-polylysine hydrochloride 0.1%- 0.5%.
The present invention also provides a kind of preparation methods of the steamed bean curd roll composite antistaling agent based on microcapsules technology, it is characterised in that: Comprise the following steps:
(1) the soft phosphatide of soybean and cholesterol are formed into nano liposomes after mixing, added in containing clove oil and firewood grass The chloroformic solution of extract after mixing, is ultrasonically treated while chitosan solution is added dropwise, rotary evaporation of solvent obtains Antistaling agent containing microcapsules;
(2) lactic acid is added to the water after mixing, sequentially adds sodium Diacetate, alum, epsilon-polylysine hydrochloride, fill Divide mixing to get the antistaling agent containing lactic acid;
(3) antistaling agent containing microcapsules prepared by step (1) is mixed with the antistaling agent containing lactic acid prepared by step (2) The steamed bean curd roll composite antistaling agent based on microcapsules technology is obtained after even.
As the preferred of above-mentioned technical proposal, in the step (1), the mass ratio 5 of the soft phosphatide of soybean and cholesterol:1.
As the preferred of above-mentioned technical proposal, in the step (1), the chloroformic solution containing clove oil and firewood grass extract The volume ratio of middle clove oil and firewood grass extract is 1:0.5-0.8.
As the preferred of above-mentioned technical proposal, in the step (1), the mass ratio of nano liposomes and chitosan is 1:1.
As the preferred of above-mentioned technical proposal, in the step (1), the wall thickness of microcapsules is in the antistaling agent containing microcapsules 5-100 μm, the sum of weight of clove oil and firewood grass extract accounts for the 20-35% of microcapsules total weight in microcapsules.
As the preferred of above-mentioned technical proposal, in the step (2), the component in the antistaling agent containing lactic acid, by weight hundred Divide than meter, water 82%-89%, lactic acid 10%-15%, sodium Diacetate 1%-2%, alum 0.5%-1%, epsilon-polylysine hydrochloric acid Salt 0.1%-0.5%.
The present invention also provides a kind of application methods of the steamed bean curd roll composite antistaling agent based on microcapsules technology, it is characterised in that: Comprise the following steps:
(1) skin of soya-bean milk that thickness is 2-3mm is cut into long 10-15cm, the rectangle of wide 8-10cm, sprinkling or dipping contain The antistaling agent of microcapsules, drains, the steamed bean curd roll core pre-processed;
(2) skin of soya-bean milk that thickness is 2-3mm is cut into the square of long 15-20cm, the guarantor of sprinkling or dipping containing lactic acid It fresh dose, drains, the steamed bean curd roll skin pre-processed;
(3) the steamed bean curd roll skin for the pretreatment for preparing step (1) impregnates in soup, pretreatment prepared by step (2) Steamed bean curd roll wicking surface smears sauce, and after fully penetrated, by treated, steamed bean curd roll core is rolled into the steamed bean curd roll suitcase after cylinder soaks soup It wraps up in, then is tightened with cloth, bound with cotton rope, boiled in soup, taken the dish out of the pot, cooled down, then immerse 5-10s in the antistaling agent containing lactic acid, It takes out, dries, be placed in freezer or room temperature and store.
As the preferred of above-mentioned technical proposal, in the step (2), the content of microcapsules is in the steamed bean curd roll core of pretreatment 0.5-1.5wt%.
Compared with prior art, the invention has the advantages that:
(1) the steamed bean curd roll composite antistaling agent based on microcapsules technology prepared by the present invention includes the antistaling agent containing microcapsules and contains The antistaling agent of lactic acid, wherein the shell of microcapsules is chitosan and nano liposomes in the antistaling agent containing microcapsules, sandwich layer is fourth Essential oil and firewood grass extract, chitosan are food-grade fruit glaze agents, and chitosan not only has good film forming, also with antibacterial Antibacterial effect, nano liposomes are artificial cell membrane, have biocompatibility, therefore may be used to protect embedding in food Active material, clove oil and firewood grass extract are all Chinese herbal medicine extract, and broad-spectrum sterilization effect is good, and firewood grass has steady Qualitative and coagulability can promote the steamed bean curd roll of the loosely organized breakage in transportational process to carry out secondary solidification, ensure the product of steamed bean curd roll Matter and flavor, therefore the present invention pre-processes the antistaling agent containing microcapsules and steamed bean curd roll core, is embedded in inside steamed bean curd roll, from inside Antibiotic property and stability are provided for a long term, prevents the invasion of microorganism, the fresh-keeping duration of steamed bean curd roll is remarkably improved, is also possible to prevent It is loosely organized in transportational process, influence the taste and flavor of steamed bean curd roll, the comprehensive quality for ensureing steamed bean curd roll.
(2) the steamed bean curd roll composite antistaling agent based on microcapsules technology prepared by the present invention includes the antistaling agent containing microcapsules and contains The antistaling agent of lactic acid, wherein the antistaling agent containing lactic acid includes lactic acid, sodium Diacetate, alum and epsilon-polylysine hydrochloride, lactic acid There is good inhibitory action to gram-positive bacteria, and can be absorbed by the body as nutriment, it is secondary without any poison Effect, and common sodium Diacetate, sodium Diacetate, alum and epsilon-polylysine hydrochloride chemical-biological preservative collective effect, Synergistic effect is apparent, and the Antimicrobial preservative performance being remarkably improved outside steamed bean curd roll prevents the invasion of microorganism in environment.
(3) antistaling agent prepared by the present invention carries out steamed bean curd roll integrated protection from the inside and outside of steamed bean curd roll, and in view of element Situation about occurring in the process is being transported and preserved to chicken, and microcapsules technology is introduced wherein, can slowly be discharged for a long time from inside anti- Bacterium ingredient prevents the decline of the antibiotic property caused by the loss of antistaling agent during the transport and preservation, influences fresh-keeping duration, and this The preparation method of antistaling agent prepared by invention is simple, and controllability is strong.
Specific embodiment
Below in conjunction with specific embodiment, the present invention will be described in detail, herein illustrative examples and explanation of the invention For explaining the present invention, but it is not as a limitation of the invention.
Embodiment 1:
(1) by the soft phosphatide of soybean and cholesterol according to mass ratio 5:Nano liposomes are formed after 1 mixing, are added in containing volume ratio For 1:0.5 clove oil and the chloroformic solution of firewood grass extract, after mixing, according to the matter of nano liposomes and chitosan Amount is than being 1:1, it is ultrasonically treated while chitosan solution is added dropwise, rotary evaporation of solvent obtains the antistaling agent containing microcapsules, In, the wall thickness of microcapsules is 5- μm in the antistaling agent containing microcapsules, total matter of clove oil and firewood grass extract in microcapsules It is 20% to measure fraction.
(2) after lactic acid being added to the water mixing, sodium Diacetate, alum, epsilon-polylysine hydrochloride are sequentially added, it is fully mixed It closes to get the antistaling agent containing lactic acid, wherein, the component in the antistaling agent containing lactic acid, in percentage terms, lactic acid 10%%, double second Sour sodium 1%%, alum 0.5%%, epsilon-polylysine hydrochloride 0.1%, surplus are water.
(3) skin of soya-bean milk that thickness is 2mm being cut into long 10cm, the rectangle of wide 8cm sprays the antistaling agent containing microcapsules, Wherein, the content of microcapsules is 0.5wt% in the steamed bean curd roll core of pretreatment, is drained, thickness is by the steamed bean curd roll core pre-processed The skin of soya-bean milk of 2mm is cut into the square of long 15cm, sprays the antistaling agent containing lactic acid, drains, the steamed bean curd roll skin pre-processed.
(4) the steamed bean curd roll skin of pretreatment in soup is impregnated, the steamed bean curd roll wicking surface of pretreatment is smeared into sauce, treats fully to ooze After thoroughly, by treated, steamed bean curd roll core is rolled into primitive axis shape, and with treated, steamed bean curd roll suitcase is wrapped up in, then is tightened with cloth, is bound with cotton rope, Boil, take the dish out of the pot in soup, it is cold go after, then immerse 5s in the antistaling agent containing lactic acid, take out, dry, be placed in freezer or room temperature Storage.
Embodiment 2:
(1) by the soft phosphatide of soybean and cholesterol according to mass ratio 5:Nano liposomes are formed after 1 mixing, are added in containing volume ratio For 1:0.8 clove oil and the chloroformic solution of firewood grass extract, after mixing, according to the matter of nano liposomes and chitosan Amount is than being 1:1, it is ultrasonically treated while chitosan solution is added dropwise, rotary evaporation of solvent obtains the antistaling agent containing microcapsules, In, the wall thickness of microcapsules is 100 μm in the antistaling agent containing microcapsules, total matter of clove oil and firewood grass extract in microcapsules It is 35% to measure fraction.
(2) after lactic acid being added to the water mixing, sodium Diacetate, alum, epsilon-polylysine hydrochloride are sequentially added, it is fully mixed It closes to get the antistaling agent containing lactic acid, wherein, the component in the antistaling agent containing lactic acid, in percentage terms, lactic acid 15%, diacetic acid Sodium 2%, alum 1%, epsilon-polylysine hydrochloride 0.5%, surplus are water.
(3) skin of soya-bean milk that thickness is 3mm being cut into long 15cm, the rectangle of wide 10cm impregnates the antistaling agent containing microcapsules, Wherein, the content of microcapsules is 1.5wt% in the steamed bean curd roll core of pretreatment, is drained, thickness is by the steamed bean curd roll core pre-processed The skin of soya-bean milk of 3mm is cut into the square of long 20cm, impregnates the antistaling agent containing lactic acid, drains, the steamed bean curd roll skin pre-processed.
(4) the steamed bean curd roll skin of pretreatment in soup is impregnated, the steamed bean curd roll wicking surface of pretreatment is smeared into sauce, treats fully to ooze After thoroughly, by treated, steamed bean curd roll core is rolled into primitive axis shape, and with treated, steamed bean curd roll suitcase is wrapped up in, then is tightened with cloth, is bound with cotton rope, Boil, take the dish out of the pot in soup, it is cold go after, then immerse 10s in the antistaling agent containing lactic acid, take out, dry, be placed in freezer or room temperature Storage.
Embodiment 3:
(1) by the soft phosphatide of soybean and cholesterol according to mass ratio 5:Nano liposomes are formed after 1 mixing, are added in containing volume ratio For 1:0.6 clove oil and the chloroformic solution of firewood grass extract, after mixing, according to the matter of nano liposomes and chitosan Amount is than being 1:1, it is ultrasonically treated while chitosan solution is added dropwise, rotary evaporation of solvent obtains the antistaling agent containing microcapsules, In, the wall thickness of microcapsules is 50 μm in the antistaling agent containing microcapsules, total matter of clove oil and firewood grass extract in microcapsules It is 25% to measure fraction.
(2) after lactic acid being added to the water mixing, sodium Diacetate, alum, epsilon-polylysine hydrochloride are sequentially added, it is fully mixed It closes to get the antistaling agent containing lactic acid, wherein, the component in the antistaling agent containing lactic acid, in percentage terms, lactic acid 13%, diacetic acid Sodium 1.5%, alum 0.8%, epsilon-polylysine hydrochloride 0.4%, surplus are water.
(3) skin of soya-bean milk that thickness is 2.5mm is cut into long 12cm, the rectangle of wide 8cm is impregnated containing the fresh-keeping of microcapsules Agent, wherein, the content of microcapsules is 1wt% in the steamed bean curd roll core of pretreatment, is drained, thickness is by the steamed bean curd roll core pre-processed The skin of soya-bean milk of 2.5mm is cut into the square of long 16cm, sprays the antistaling agent containing lactic acid, drains, the steamed bean curd roll skin pre-processed.
(4) the steamed bean curd roll skin of pretreatment in soup is impregnated, the steamed bean curd roll wicking surface of pretreatment is smeared into sauce, treats fully to ooze After thoroughly, by treated, steamed bean curd roll core is rolled into primitive axis shape, and with treated, steamed bean curd roll suitcase is wrapped up in, then is tightened with cloth, is bound with cotton rope, Boil, take the dish out of the pot in soup, it is cold go after, then immerse 7s in the antistaling agent containing lactic acid, take out, dry, be placed in freezer or room temperature Storage.
Embodiment 4:
(1) by the soft phosphatide of soybean and cholesterol according to mass ratio 5:Nano liposomes are formed after 1 mixing, are added in containing volume ratio For 1:0.7 clove oil and the chloroformic solution of firewood grass extract, after mixing, according to the matter of nano liposomes and chitosan Amount is than being 1:1, it is ultrasonically treated while chitosan solution is added dropwise, rotary evaporation of solvent obtains the antistaling agent containing microcapsules, In, the wall thickness of microcapsules is 25 μm in the antistaling agent containing microcapsules, total matter of clove oil and firewood grass extract in microcapsules It is 25% to measure fraction.
(2) after lactic acid being added to the water mixing, sodium Diacetate, alum, epsilon-polylysine hydrochloride are sequentially added, it is fully mixed It closes to get the antistaling agent containing lactic acid, wherein, the component in the antistaling agent containing lactic acid, in percentage terms, lactic acid 13%, diacetic acid Sodium 1.5%, alum 0.7%, epsilon-polylysine hydrochloride 0.3%, surplus are water.
(3) skin of soya-bean milk that thickness is 3mm being cut into long 15cm, the rectangle of wide 8cm sprays the antistaling agent containing microcapsules, Wherein, the content of microcapsules is 1.2wt% in the steamed bean curd roll core of pretreatment, is drained, thickness is by the steamed bean curd roll core pre-processed The skin of soya-bean milk of 2.7mm is cut into the square of long 18cm, impregnates the antistaling agent containing lactic acid, drains, the steamed bean curd roll skin pre-processed.
(4) the steamed bean curd roll skin of pretreatment in soup is impregnated, the steamed bean curd roll wicking surface of pretreatment is smeared into sauce, treats fully to ooze After thoroughly, by treated, steamed bean curd roll core is rolled into primitive axis shape, and with treated, steamed bean curd roll suitcase is wrapped up in, then is tightened with cloth, is bound with cotton rope, Boil, take the dish out of the pot in soup, it is cold go after, then immerse 8s in the antistaling agent containing lactic acid, take out, dry, be placed in freezer or room temperature Storage.
Embodiment 5:
(1) by the soft phosphatide of soybean and cholesterol according to mass ratio 5:Nano liposomes are formed after 1 mixing, are added in containing volume ratio For 1:0.5 clove oil and the chloroformic solution of firewood grass extract, after mixing, according to the matter of nano liposomes and chitosan Amount is than being 1:1, it is ultrasonically treated while chitosan solution is added dropwise, rotary evaporation of solvent obtains the antistaling agent containing microcapsules, In, the wall thickness of microcapsules is 100 μm in the antistaling agent containing microcapsules, total matter of clove oil and firewood grass extract in microcapsules It is 20% to measure fraction.
(2) after lactic acid being added to the water mixing, sodium Diacetate, alum, epsilon-polylysine hydrochloride are sequentially added, it is fully mixed It closes to get the antistaling agent containing lactic acid, wherein, the component in the antistaling agent containing lactic acid, in percentage terms, lactic acid 15%, diacetic acid Sodium 1%, alum 1%, epsilon-polylysine hydrochloride 0.1%, surplus are water.
(3) skin of soya-bean milk that thickness is 3mm being cut into long 10cm, the rectangle of wide 10cm sprays the antistaling agent containing microcapsules, Wherein, the content of microcapsules is 1.5wt% in the steamed bean curd roll core of pretreatment, is drained, thickness is by the steamed bean curd roll core pre-processed The skin of soya-bean milk of 2mm is cut into the square of long 20cm, sprays the antistaling agent containing lactic acid, drains, the steamed bean curd roll skin pre-processed.
(4) the steamed bean curd roll skin of pretreatment in soup is impregnated, the steamed bean curd roll wicking surface of pretreatment is smeared into sauce, treats fully to ooze After thoroughly, by treated, steamed bean curd roll core is rolled into primitive axis shape, and with treated, steamed bean curd roll suitcase is wrapped up in, then is tightened with cloth, is bound with cotton rope, Boil, take the dish out of the pot in soup, it is cold go after, then immerse 10s in the antistaling agent containing lactic acid, take out, dry, be placed in freezer or room temperature Storage.
Embodiment 6:
(1) by the soft phosphatide of soybean and cholesterol according to mass ratio 5:Nano liposomes are formed after 1 mixing, are added in containing volume ratio For 1:.8 clove oil and the chloroformic solution of firewood grass extract, after mixing, according to the matter of nano liposomes and chitosan Amount is than being 1:1, it is ultrasonically treated while chitosan solution is added dropwise, rotary evaporation of solvent obtains the antistaling agent containing microcapsules, In, the wall thickness of microcapsules is 50 μm in the antistaling agent containing microcapsules, total matter of clove oil and firewood grass extract in microcapsules It is 35% to measure fraction.
(2) after lactic acid being added to the water mixing, sodium Diacetate, alum, epsilon-polylysine hydrochloride are sequentially added, it is fully mixed It closes to get the antistaling agent containing lactic acid, wherein, the component in the antistaling agent containing lactic acid, in percentage terms, lactic acid 10%, diacetic acid Sodium 2%, alum 0.5%, epsilon-polylysine hydrochloride 0.5%, surplus are water.
(3) skin of soya-bean milk that thickness is 2mm being cut into long 15cm, the rectangle of wide 8cm impregnates the antistaling agent containing microcapsules, Wherein, the content of microcapsules is 1wt% in the steamed bean curd roll core of pretreatment, is drained, the steamed bean curd roll core pre-processed, is 3mm by thickness The skin of soya-bean milk be cut into the square of long 15cm, impregnate the antistaling agent containing lactic acid, drain, the steamed bean curd roll skin pre-processed.
(4) the steamed bean curd roll skin of pretreatment in soup is impregnated, the steamed bean curd roll wicking surface of pretreatment is smeared into sauce, treats fully to ooze After thoroughly, by treated, steamed bean curd roll core is rolled into primitive axis shape, and with treated, steamed bean curd roll suitcase is wrapped up in, then is tightened with cloth, is bound with cotton rope, Boil, take the dish out of the pot in soup, it is cold go after, then immerse 5s in the antistaling agent containing lactic acid, take out, dry, be placed in freezer or room temperature Storage.
After testing, the steamed bean curd roll and the anti-microbial property and the result of shelf-life of the steamed bean curd roll of the prior art that prepared by embodiment 1-6 are such as Shown in lower:
As seen from the above table, anti-microbial property of the steamed bean curd roll that prepared by the present invention in the environment of standing and compression is all very excellent, The freshness date of steamed bean curd roll is significantly improved, and the damage during transport and preservation of being fearless.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe Know the personage of this technology all can carry out modifications and changes under the spirit and scope without prejudice to the present invention to above-described embodiment.Cause This, those of ordinary skill in the art is complete without departing from disclosed spirit and institute under technological thought such as Into all equivalent modifications or change, should by the present invention claim be covered.

Claims (10)

  1. A kind of 1. steamed bean curd roll composite antistaling agent based on microcapsules technology, which is characterized in that the steamed bean curd roll based on microcapsules technology Composite antistaling agent includes the antistaling agent containing microcapsules and the antistaling agent containing lactic acid, and the antistaling agent containing lactic acid includes lactic acid, double Sodium acetate, alum and epsilon-polylysine hydrochloride, the shell of microcapsules for chitosan and is received in the antistaling agent containing microcapsules Mizhi plastid, sandwich layer are clove oil and firewood grass extract.
  2. 2. a kind of steamed bean curd roll composite antistaling agent based on microcapsules technology according to claim 1, which is characterized in that described to contain Component in the antistaling agent of lactic acid, by weight percentage, water 82%-89%, lactic acid 10%-15%, sodium Diacetate 1%- 2%, alum 0.5%-1%, epsilon-polylysine hydrochloride 0.1%-0.5%.
  3. 3. a kind of preparation method of the steamed bean curd roll composite antistaling agent based on microcapsules technology, it is characterised in that:Comprise the following steps:
    (1) the soft phosphatide of soybean and cholesterol are formed into nano liposomes after mixing, added in containing clove oil and firewood grass extraction The chloroformic solution of object after mixing, is ultrasonically treated while chitosan solution is added dropwise, rotary evaporation of solvent is obtained containing micro- The antistaling agent of capsule;
    (2) lactic acid is added to the water after mixing, sequentially adds sodium Diacetate, alum, epsilon-polylysine hydrochloride, it is fully mixed It closes to get the antistaling agent containing lactic acid;
    (3) antistaling agent containing lactic acid for preparing antistaling agent containing microcapsules prepared by step (1) with step (2) is after mixing Obtain the steamed bean curd roll composite antistaling agent based on microcapsules technology.
  4. 4. a kind of preparation method of steamed bean curd roll composite antistaling agent based on microcapsules technology according to claim 3, feature It is:In the step (1), the mass ratio 5 of the soft phosphatide of soybean and cholesterol:1.
  5. 5. a kind of preparation method of steamed bean curd roll composite antistaling agent based on microcapsules technology according to claim 3, feature It is:In the step (1), the body of clove oil and firewood grass extract in the chloroformic solution containing clove oil and firewood grass extract Product is than being 1:0.5-0.8.
  6. 6. a kind of preparation method of steamed bean curd roll composite antistaling agent based on microcapsules technology according to claim 3, feature It is:In the step (1), the mass ratio of nano liposomes and chitosan is 1:1.
  7. 7. a kind of preparation method of steamed bean curd roll composite antistaling agent based on microcapsules technology according to claim 3, feature It is:In the step (1), the wall thickness of microcapsules is 5-100 μm in the antistaling agent containing microcapsules, in microcapsules clove oil and The sum of weight of firewood grass extract accounts for the 20-35% of microcapsules total weight.
  8. 8. a kind of preparation method of steamed bean curd roll composite antistaling agent based on microcapsules technology according to claim 3, feature It is:In the step (2), the component in the antistaling agent containing lactic acid, by weight percentage, and water 82%-89%, lactic acid 10%-15%, sodium Diacetate 1%-2%, alum 0.5%-1%, epsilon-polylysine hydrochloride 0.1%-0.5%.
  9. 9. a kind of user of steamed bean curd roll composite antistaling agent based on microcapsules technology according to any one of claims 1 to 8 Method, it is characterised in that:Comprise the following steps:
    (1) skin of soya-bean milk that thickness is 2-3mm is cut into long 10-15cm, the rectangle of wide 8-10cm, sprinkling or dipping are containing micro- glue The antistaling agent of capsule, drains, the steamed bean curd roll core pre-processed;
    (2) skin of soya-bean milk that thickness is 2-3mm is cut into the square of long 15-20cm, sprays or impregnate the antistaling agent containing lactic acid, It drains, the steamed bean curd roll skin pre-processed;
    (3) the steamed bean curd roll skin for the pretreatment for preparing step (1) impregnates in soup, the steamed bean curd roll of pretreatment prepared by step (2) Wicking surface smears sauce, after fully penetrated, by treated steamed bean curd roll core is rolled into it is cylindrical wrapped up in soaking the steamed bean curd roll suitcase after soup, then It is tightened with cloth, is bound with cotton rope, boiled in soup, taken the dish out of the pot, cooled down, then immerse 5-10s in the antistaling agent containing lactic acid, taken out, It dries, is placed in freezer or room temperature and stores.
  10. 10. a kind of preparation method of steamed bean curd roll composite antistaling agent based on microcapsules technology according to claim 9, feature It is:In the step (2), the content of microcapsules is 0.5-1.5wt% in the steamed bean curd roll core of pretreatment.
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