CN105054218A - Preparation method for food desiccant - Google Patents
Preparation method for food desiccant Download PDFInfo
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- CN105054218A CN105054218A CN201510539380.0A CN201510539380A CN105054218A CN 105054218 A CN105054218 A CN 105054218A CN 201510539380 A CN201510539380 A CN 201510539380A CN 105054218 A CN105054218 A CN 105054218A
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- preparation
- culture medium
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- bamboo
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- 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
- A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
- A23L3/34—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals
- A23L3/3454—Preservation 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
- A23L3/3463—Organic compounds; Microorganisms; Enzymes
- A23L3/3472—Compounds of undetermined constitution obtained from animals or plants
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- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Botany (AREA)
- Nutrition Science (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
- Coloring Foods And Improving Nutritive Qualities (AREA)
- Preparation Of Fruits And Vegetables (AREA)
Abstract
The present invention discloses a preparation method for a food desiccant. The preparation method comprises the following steps: conducting bamboo leaf extraction to prepare culture medium, conducting microbial fermentation to prepare compound bacterial cellulose, conducting lipase-catalyzed modification, drying, etc. The prepared food desiccant is strong in moisture absorption capacity, water holding capacity and antioxidant capacity so that there is no need to painstakingly package food in bags containing inactive gases. The preparation method is simple and has broad market prospects.
Description
Technical field
The invention belongs to drier field, particularly relate to a kind of preparation method of food drier.
Background technology
Food desiccant is at the important protective agent of packaging for foodstuff process; especially to the food with the moisture absorption; the food desiccant of current use with silica gel, montmorillonite and quick lime for raw material be prepared from the majority, have environment unfriendly, eat by mistake and produce the problems such as dangerous.For solving this kind of problem, have the drier of some edible naturals to be developed, as the drier etc. of starch based, but there is the inadequate problem of short texture, moisture pick-up properties and water retention property in these.In addition, food can go bad because of oxidation in storage, and usually need to be filled with inert gas protection in packaging, not only cost is high, and inconvenient operation.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of preparation method of food drier is provided.
For achieving the above object, the preparation method of the wholefood drier that the present invention relates to, comprises the following steps:
(1) aseptic culture medium is prepared: the leaf of bamboo is after clean dry, be crushed to 100 orders, according to the leaf of bamboo: after the leaf of bamboo mixes with water by the mass ratio of water=1:10-100, heating lixiviate, then filter, in filtrate, add 2-8wt% glucose, 1-4wt% edible alcohol, 1-3wt% dusty yeast, pectin 0.01-0.05wt%, 0.1-0.4wt% active carbon nanoparticles be made into culture medium, add bead, through pasteurize, for subsequent use after ultrasonic disperse;
(2) concussion fermentation: in culture medium, access metabolism can produce the acetobacter xylinum of bacteria cellulose, and 25-30 DEG C of concussion cultivation and fermentation 4-8 days, obtains bacterial cellulose microsphere, take out microballoon, then with deionized water rinsing to neutral, drain surface moisture;
(3) enzymatic: immerse in ethyl acetate by the bacterial cellulose microsphere draining surface moisture, then adds microspheres quality 0.1wt% lipase, in 40-60 DEG C of catalysis 2-4h;
(4) dry: to take out the bacterial cellulose microsphere after enzymatic, repeatedly clean with edible alcohol and water and remain to without ethyl acetate, after dry, sealed storage obtains granule state food drier.
Wherein, the temperature of described heating lixiviate is 60-80 DEG C, time 2-4h.
The bead of described bead usable diameter 0.1-0.3cm, addition is often liter of zymotic fluid 10-50.
The concussion speed that described concussion is cultivated is 100-300rpm.
Described drying is the one in vacuum freeze drying, microwave drying.
The present invention take the leaf of bamboo as raw material, prepares food drier by fermentable, and this drier has extremely strong moisture pick-up properties, and water absorbing capacity can reach more than 5 times of own wt.The present invention adds a certain amount of pectin in the fermentation medium, the structure of the bacteria cellulose that adjustment fermentation produces, the active component in active carbon nanoparticles and the leaf of bamboo is made to be wrapped in the nano aperture of bacteria cellulose, the drier prepared possesses outstanding water holding capacity and oxidation resistance, in the packaging bag that food need not be deliberately packaged in containing inert gas.The present invention utilizes lipase to carry out the hydrophobically modified of trace to the surface of bacteria cellulose, improves water holding capacity further.
Preparation method of the present invention is absorption carrier with bacteria cellulose, has renewable and degradability, can not cause burden to environment, belongs to environmentally friendly product., reuse after this drier is renewable, regenerative process also there will not be the phenomenon of cracking meanwhile, and product is stablized.
Detailed description of the invention
Below in conjunction with instantiation, technical scheme of the present invention is described further.
Embodiment 1:
(1) aseptic culture medium is prepared: the leaf of bamboo is after clean dry, be crushed to 100 orders, according to the leaf of bamboo: after the leaf of bamboo mixes with water by the mass ratio of water=1:10,60 DEG C of lixiviate 4h, then filter, add 2wt% glucose in filtrate, 1wt% edible alcohol, 1wt% dusty yeast, pectin 0.01wt%, 0.1wt% active carbon nanoparticles be made into culture medium, often liter of culture medium adds the bead of 50 diameter 0.1cm, through pasteurize, for subsequent use after ultrasonic disperse;
(2) concussion fermentation: in culture medium, access metabolism can produce the acetobacter xylinum of bacteria cellulose, in 25 DEG C, 100rpm shakes cultivation and fermentation 8 days, obtain bacterial cellulose microsphere, take out microballoon, then with deionized water rinsing to neutral, drain surface moisture;
(3) enzymatic: immerse in natural acetic acid ethyl ester by the bacterial cellulose microsphere draining surface moisture, then adds microspheres quality 0.1wt% lipase Novozyme435, in 40 DEG C of catalysis 4h;
(4) dry: to take out the bacterial cellulose microsphere after enzymatic, repeatedly clean with edible alcohol and water and remain to without ethyl acetate, after vacuum freeze drying, sealed storage obtains graininess shape food desiccant.
Embodiment 2:
(1) aseptic culture medium is prepared: the leaf of bamboo is after clean dry, be crushed to 100 orders, according to the leaf of bamboo: after the leaf of bamboo mixes with water by the mass ratio of water=1:100,80 DEG C of lixiviate 2h, then filter, add 8wt% glucose in filtrate, 4wt% edible alcohol, 3wt% dusty yeast, pectin 0.05wt%, 0.4wt% active carbon nanoparticles be made into culture medium, often liter of culture medium adds the bead of 10 diameter 0.3cm, through pasteurize, for subsequent use after ultrasonic disperse;
(2) concussion fermentation: in culture medium, access metabolism can produce the acetobacter xylinum of bacteria cellulose, in 30 DEG C, 300rpm shakes cultivation and fermentation 4 days, obtain bacterial cellulose microsphere, take out microballoon, then with deionized water rinsing to neutral, drain surface moisture;
(3) enzymatic: immerse in natural acetic acid ethyl ester by the bacterial cellulose microsphere draining surface moisture, then adds microspheres quality 0.1wt% lipase lipozymeRMIM, in 60 DEG C of catalysis 2h;
(4) dry: to take out the bacterial cellulose microsphere after enzymatic, repeatedly clean with edible alcohol and water and remain to without ethyl acetate, after microwave drying, sealed storage obtains graininess shape food desiccant.
Embodiment 3:
(1) aseptic culture medium is prepared: the leaf of bamboo is after clean dry, be crushed to 100 orders, according to the leaf of bamboo: after the leaf of bamboo mixes with water by the mass ratio of water=1:50,70 DEG C of lixiviate 3h, then filter, add 6wt% glucose in filtrate, 3wt% edible alcohol, 2wt% dusty yeast, pectin 0.03wt%, 0.2wt% active carbon nanoparticles be made into culture medium, often liter of culture medium adds the bead of 30 diameter 0.2cm, through pasteurize, for subsequent use after ultrasonic disperse;
(2) concussion fermentation: in culture medium, access metabolism can produce the acetobacter xylinum of bacteria cellulose, in 28 DEG C, 200rpm shakes cultivation and fermentation 6 days, obtain bacterial cellulose microsphere, take out microballoon, then with deionized water rinsing to neutral, drain surface moisture;
(3) enzymatic: immerse in natural acetic acid ethyl ester by the bacterial cellulose microsphere draining surface moisture, then adds microspheres quality 0.1wt% lipase Novozyme435, in 50 DEG C of catalysis 3h;
(4) dry: to take out the bacterial cellulose microsphere after enzymatic, repeatedly clean with edible alcohol and water and remain to without ethyl acetate, after vacuum freeze drying, sealed storage obtains graininess shape food desiccant.
Claims (5)
1. a preparation method for food desiccant, is characterized in that comprising the following steps:
(1) aseptic culture medium is prepared: the leaf of bamboo is after clean dry, be crushed to 100 orders, according to the leaf of bamboo: after the leaf of bamboo mixes with water by the mass ratio of water=1:10-100, heating lixiviate, then filter, in filtrate, add 2-8wt% glucose, 1-4wt% edible alcohol, 1-3wt% dusty yeast, pectin 0.01-0.05wt%, 0.1-0.4wt% active carbon nanoparticles be made into culture medium, add bead, through pasteurize, for subsequent use after ultrasonic disperse;
(2) concussion fermentation: in culture medium, access metabolism can produce the acetobacter xylinum of bacteria cellulose, and 25-30 DEG C of concussion cultivation and fermentation 4-8 days, obtains bacterial cellulose microsphere, take out microballoon, then with deionized water rinsing to neutral, drain surface moisture;
(3) enzymatic: immerse in ethyl acetate by the bacterial cellulose microsphere draining surface moisture, then adds microspheres quality 0.1wt% lipase, in 40-60 DEG C of catalysis 2-4h;
(4) dry: to take out the bacterial cellulose microsphere after enzymatic, repeatedly clean with edible alcohol and water and remain to without ethyl acetate, after dry, sealed storage obtains granule state food drier.
2. the preparation method of wholefood drier according to claim 1, is characterized in that the temperature of described heating lixiviate is 60-80 DEG C, time 2-4h.
3. the preparation method of wholefood drier according to claim 1, is characterized in that the bead of described bead usable diameter 0.1-0.3cm, and addition is often liter of zymotic fluid 10-50.
4. the preparation method of wholefood drier according to claim 1, is characterized in that the concussion speed that described concussion is cultivated is 100-300rpm.
5. the preparation method of wholefood drier according to claim 1, is characterized in that described drying is the one in vacuum freeze drying, microwave drying.
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| CN201510539380.0A CN105054218B (en) | 2015-08-30 | 2015-08-30 | A kind of preparation method of food drier |
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| CN201510539380.0A CN105054218B (en) | 2015-08-30 | 2015-08-30 | A kind of preparation method of food drier |
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| CN105054218B CN105054218B (en) | 2018-11-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109745960A (en) * | 2019-03-13 | 2019-05-14 | 盱眙博图凹土股份有限公司 | A kind of container desiccant and preparation method thereof |
Citations (7)
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| GB1199843A (en) * | 1968-02-14 | 1970-07-22 | Monsanto Chemicals | Resin Compositions |
| CN101669668A (en) * | 2008-09-11 | 2010-03-17 | 上海市长宁区少年科技指导站 | Food desiccant |
| CN102246998A (en) * | 2010-06-02 | 2011-11-23 | 程坷伟 | Safe food desiccant composition |
| CN102766373A (en) * | 2012-08-13 | 2012-11-07 | 天津美莲达油墨助剂有限公司 | Environment-friendly anti-dryer and preparation method thereof |
| CN103340819A (en) * | 2013-07-23 | 2013-10-09 | 海南光宇生物科技有限公司 | Preparation method of bacterial cellulose facial mask with anti-radiation effect |
| CN103357060A (en) * | 2013-07-23 | 2013-10-23 | 海南光宇生物科技有限公司 | Method for preparing bacterial cellulose composite fish collagen wound dressing |
| CN103734864A (en) * | 2013-12-23 | 2014-04-23 | 广西弘耀祥科技有限公司 | Deoxidizing and drying agent for food and feed and preparation method thereof |
-
2015
- 2015-08-30 CN CN201510539380.0A patent/CN105054218B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1199843A (en) * | 1968-02-14 | 1970-07-22 | Monsanto Chemicals | Resin Compositions |
| CN101669668A (en) * | 2008-09-11 | 2010-03-17 | 上海市长宁区少年科技指导站 | Food desiccant |
| CN102246998A (en) * | 2010-06-02 | 2011-11-23 | 程坷伟 | Safe food desiccant composition |
| CN102766373A (en) * | 2012-08-13 | 2012-11-07 | 天津美莲达油墨助剂有限公司 | Environment-friendly anti-dryer and preparation method thereof |
| CN103340819A (en) * | 2013-07-23 | 2013-10-09 | 海南光宇生物科技有限公司 | Preparation method of bacterial cellulose facial mask with anti-radiation effect |
| CN103357060A (en) * | 2013-07-23 | 2013-10-23 | 海南光宇生物科技有限公司 | Method for preparing bacterial cellulose composite fish collagen wound dressing |
| CN103734864A (en) * | 2013-12-23 | 2014-04-23 | 广西弘耀祥科技有限公司 | Deoxidizing and drying agent for food and feed and preparation method thereof |
Non-Patent Citations (1)
| Title |
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| 张文标等: "竹炭负载氯化钙复合干燥剂的研究", 《林产工业》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109745960A (en) * | 2019-03-13 | 2019-05-14 | 盱眙博图凹土股份有限公司 | A kind of container desiccant and preparation method thereof |
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| CN105054218B (en) | 2018-11-06 |
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Effective date of registration: 20180904 Address after: 237000 Lu'an three economic development zone, Anhui, Zhengyang 2 North 304 District 2 North Block 304 Applicant after: Chen Lin Address before: 246000 room 506, unit 1, North building, Da Nan men West Lane, Yingjiang District, Anqing, Anhui. Applicant before: Chen Aimei |
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