CN1106999A - Preparation of chitosan derivate fruit and vegetable antistaling agent - Google Patents
Preparation of chitosan derivate fruit and vegetable antistaling agent Download PDFInfo
- Publication number
- CN1106999A CN1106999A CN 94101978 CN94101978A CN1106999A CN 1106999 A CN1106999 A CN 1106999A CN 94101978 CN94101978 CN 94101978 CN 94101978 A CN94101978 A CN 94101978A CN 1106999 A CN1106999 A CN 1106999A
- Authority
- CN
- China
- Prior art keywords
- fruit
- antistaling agent
- chitosan
- shitosan
- vegetable
- 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.)
- Pending
Links
Landscapes
- Agricultural Chemicals And Associated Chemicals (AREA)
- Medicines Containing Plant Substances (AREA)
- Storage Of Fruits Or Vegetables (AREA)
Abstract
The raw material of the invented anti-staling agent is the chitosan which is obtained from the chitin extracted from natural shrimp shell and crab shell and passing through deacetoxylation. The alkali chitosan is obtained after alkali treatment, then the chloracetic acid is added and mixed thoroughly, after reaction they are filtered with alcohol and washed several times with alcohol, then the carboxymethyl chitosan is obtained after stoving. The chitosan and carboxymethyl chitosan are added in activator and other aids and mixed thoroughly and the anti-staling agent is obtained.
Description
The invention belongs to the natural biological goods.
The seasonality of fruit, vegetable growth is very strong, and different seasons its price variance very big.According to investigations, producing the busy season, the rotting rate of fruits and vegetables reaches 25%-40%, and therefore, the research of antistaling agent still becomes focus at home and abroad.At present, Chang Yong antistaling agent has " capital 2B " at home, is the film forming anticorrisive agent, belongs to synthetic organic high molecular compound.Both are all toxic.International more famous " gloomy Charles Bell " antistaling agent is natural coating antistaling agent, and its film forming matter mainly is a sodium carboxymethylcellulose, but not satisfactory through trial effect, and the storage life of fruits and vegetables is short, the rotting rate height, and cost an arm and a leg about 1000 yuan/kg; User's economy is difficult to accept.
For seeking a kind of natural, nontoxic effective novel antistaling agent that easily can have been born by the user, the present invention utilizes the coastal shitosan that has abundant crab shrimp shell to extract of China to be raw material, add acid and activating agent and other auxiliary agent of appropriateness, prepare a kind of novel coating antistaling agent.And can adopt different prescriptions according to different fresh-keeping objects, make it seriation.Its method is easy, and production equipment is uncomplicated, and cost is low, and use face is wider, effective advantage.
The object of the present invention is achieved like this: with shitosan is raw material, after the organic solvent swelling, handle with alkali again and draw alkali crust glycan, adding monoxone stirs evenly after reaction finishes, add the adequate amount of ethanol suction filtration, to filter thing again and draw CMC, be hybridly prepared into antistaling agent with other auxiliary agent again with ethanol washing back oven dry for several times.
Second kind the preparation antistaling agent method be to be raw material with the shitosan, make sour solvent with tartaric acid, ratio was advisable with 3: 1 to 4: 1, add the water obtain solution after pH between 3 to 6.
Embodiment:
The preparation of the thing system of filming: with the shitosans of 500 grams with ethanol swellings fully after, at normal temperatures, after soaking 24 hours with the 50% dense alkali that crosses, draw the alkali shitosan, the monoxone that adds 700 grams again stirs evenly to having reacted and than then adds 95% ethanol suction filtration, with of ethanol washing 3-4 the back oven dry of filter thing, can become the CMC of faint yellow or white solid with 95% concentration.
The preparation of antistaling agent: the SE-9(sucrose ester that adds 5Kg with the CMC 20Kg of above gained) and the CMC(carboxymethyl cellulose of 5Kg), the 5KgGAP(gum arabic), abundant stirring and evenly mixing, grind, cross 60 mesh sieves, can become the chitosan derivatives antistaling agent.
During use, 1 kilogram antistaling agent can be added becomes fresh-keeping liquid after 50 kilograms water fully stirs evenly, 20,000 kilograms the fruits and vegetables of can filming.When filming fruits and vegetables are immersed in the fresh-keeping liquid pull out for 30 seconds airing or air-dry after, put into 8 ℃--store in 10 ℃ the storehouse, fresh-keeping more than 6 months.Good fruits and vegetables rate is about 98%.This antistaling agent through animal experiment have no side effect, safe and reliable.Some compositions in the prescription also are nutriments necessary in the human body.
Claims (3)
1, chitosan derivate fruit and vegetable antistaling agent is that raw material is characterized in that with the shitosan: shitosan or shitosan are transformed into CMC and add auxiliary agent mix.
2, according to the described chitosan derivate fruit and vegetable antistaling agent of claim 1, it is characterized in that: can be made into the antistaling agent of different proportion according to different fruit and vegetable varieties, make it seriation.
3, according to claim 1 or 2 described chitosan derivate fruit and vegetable antistaling agents, it is characterized in that: selecting auxiliary agent tartaric acid is lysate, and its shitosan and tartaric ratio are 3: 1, and obtain solution PH4.5 is advisable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94101978 CN1106999A (en) | 1994-02-21 | 1994-02-21 | Preparation of chitosan derivate fruit and vegetable antistaling agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94101978 CN1106999A (en) | 1994-02-21 | 1994-02-21 | Preparation of chitosan derivate fruit and vegetable antistaling agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1106999A true CN1106999A (en) | 1995-08-23 |
Family
ID=5030459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94101978 Pending CN1106999A (en) | 1994-02-21 | 1994-02-21 | Preparation of chitosan derivate fruit and vegetable antistaling agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1106999A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100426973C (en) * | 2005-04-25 | 2008-10-22 | 清华大学 | Preservation of carved or processed fresh vegetables and fruits and special antistaling agent therefor |
| CN101792541A (en) * | 2010-03-26 | 2010-08-04 | 武汉大学 | Soft film bag material for fruits and using method thereof |
| CN101700058B (en) * | 2009-11-13 | 2012-01-11 | 昆明理工大学 | Russula mycelium anti-staling agent and preparing method thereof |
| US8318913B2 (en) | 2008-03-19 | 2012-11-27 | Agratech International, Inc. | Chitosan manufacturing process |
| CN106973987A (en) * | 2017-04-28 | 2017-07-25 | 农玉金 | A kind of red bayberry coating antistaling agent and preparation method thereof |
| CN108135187A (en) * | 2015-10-02 | 2018-06-08 | 大日精化工业株式会社 | The inhibitor that plant is inhibited to change colour as caused by physical/chemical irritation |
-
1994
- 1994-02-21 CN CN 94101978 patent/CN1106999A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100426973C (en) * | 2005-04-25 | 2008-10-22 | 清华大学 | Preservation of carved or processed fresh vegetables and fruits and special antistaling agent therefor |
| US8318913B2 (en) | 2008-03-19 | 2012-11-27 | Agratech International, Inc. | Chitosan manufacturing process |
| CN101700058B (en) * | 2009-11-13 | 2012-01-11 | 昆明理工大学 | Russula mycelium anti-staling agent and preparing method thereof |
| CN101792541A (en) * | 2010-03-26 | 2010-08-04 | 武汉大学 | Soft film bag material for fruits and using method thereof |
| CN108135187A (en) * | 2015-10-02 | 2018-06-08 | 大日精化工业株式会社 | The inhibitor that plant is inhibited to change colour as caused by physical/chemical irritation |
| CN106973987A (en) * | 2017-04-28 | 2017-07-25 | 农玉金 | A kind of red bayberry coating antistaling agent and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7413881B2 (en) | Chitosan and method of preparing chitosan | |
| JP3292481B2 (en) | Mannose-containing feed and production method thereof | |
| CN101999517A (en) | Preparation method and application of low-molecular weight seaweed polysaccharide trace element chelate | |
| CN101810271B (en) | Method for preparing highland barley green | |
| CN101225126B (en) | Method for extracting chitin and chitin thereof | |
| CN1106999A (en) | Preparation of chitosan derivate fruit and vegetable antistaling agent | |
| CN101768226A (en) | High-bulk density low-heavy metal content chitosan and preparation method thereof | |
| CN109362438A (en) | A kind of chitosan degradable biological fruit bagging film spray liquid and preparation method thereof | |
| CN109504722A (en) | A kind of method that amylorrhexis prepares chitosan oligosaccharide chelated selenium | |
| CN109006179A (en) | A kind of production method of mushroom cultivation substrate | |
| CN112931510A (en) | Chitosan and preparation method thereof | |
| CN1015617B (en) | Method with producing active carbon from waste slag of citric acid fermented with dry sweet potato | |
| CN101024802B (en) | Pine-juice beer and its brewing method | |
| KR0173429B1 (en) | Process for preparation of pearl solution with physical, chemical and biochemical method | |
| CN1035512C (en) | Preparation for natural pigment sorghum red | |
| KR100876921B1 (en) | Method for tenderizing shell of crustacean or animal horny substance | |
| CN111743058A (en) | Kelp functional beverage with effect of reducing high blood pressure, high blood sugar and high blood lipid | |
| KR100871667B1 (en) | The method for manufacturing granulated salicomia herbaceal | |
| CN114246275B (en) | Breeding feed for improving resistance of red-chelating crayfish | |
| CN1091355C (en) | Natural marine fruit vegetable coating fresh-keeping agent | |
| CN115301209B (en) | High-efficiency fluorine-reducing agent and preparation and application thereof | |
| CN108976005A (en) | A kind of cotton long-acting special slow-release compound fertilizer | |
| CN115652625B (en) | Non-woven fabric with nano copper and shikonin and preparation method thereof | |
| US20230287150A1 (en) | Method of industrial extraction of alginates from brown seaweed of the family sargassaceae of the order fucales | |
| CN110256231B (en) | Preparation method of nano calcium citrate by taking shells as raw materials |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |