CN103907674B - A kind of composite preservative and preparation method thereof for water chestnut storage - Google Patents
A kind of composite preservative and preparation method thereof for water chestnut storage Download PDFInfo
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- CN103907674B CN103907674B CN201310003474.7A CN201310003474A CN103907674B CN 103907674 B CN103907674 B CN 103907674B CN 201310003474 A CN201310003474 A CN 201310003474A CN 103907674 B CN103907674 B CN 103907674B
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- 239000003755 preservative agent Substances 0.000 title claims abstract description 17
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- 238000003860 storage Methods 0.000 title claims abstract description 16
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- 238000002360 preparation method Methods 0.000 title description 3
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
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- OGBUMNBNEWYMNJ-UHFFFAOYSA-N batilol Chemical class CCCCCCCCCCCCCCCCCCOCC(O)CO OGBUMNBNEWYMNJ-UHFFFAOYSA-N 0.000 claims description 6
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Landscapes
- Storage Of Fruits Or Vegetables (AREA)
Abstract
The invention discloses a kind of composite preservatives for water chestnut storage, including pullulan, 0.2 0.4% lauric monoglyceride and 0.01 0.03% ascorbic acid that mass percent is 1-2%, remaining is water.The present invention also provides a kind of methods for the composite preservative for preparing and being stored for water chestnut.The program effectively extends the storage time of water chestnut.
Description
Technical field
The present invention relates to a kind of agricultural products fresh-keeping technologies, and in particular to it is a kind of for water chestnut storage composite preservative and its
Preparation method.
Technical background
Water chestnut（Chinese water-chestnut）, scientific name Eleocharis tuberosa（Roxb.）Roem.et.
Schult.Alias ground chestnut, horseshoe, black taro, an ancient name for water chestnut, are Cyperaceae（Cyperaceae）Eleocharis can form the cultivation of underground bulb
Kind, it is herbaceos perennial.Water chestnut mouthfeel sweet tea is crisp, full of nutrition, contains protein, fat, crude fibre, carrotene, dimension life
Plain B, vitamin C, iron, calcium, phosphorus and carbohydrate.Can eat it raw, can also be used to cook, can starch processed, can also make Chinese medicine.
Water chestnut is mainly sold in the form of belt leather at present, but fresh water chestnut is rather cumbersome in peeling, has an effect on urban health, this is greatly
Ground constrains the consumption of water chestnut.Peeling water chestnut has the characteristics that convenient, clean and edible rate is high and receives and is consumed
The favor of person.This through over cleaning, peeling（Stoning）, the fresh fruit of vegetables simply processed of cutting, finishing, classification, packaging etc. claims
For lightly processed fruits and vegetables.With people's the accelerating rhythm of life, lightly processed fruits and vegetables are because that can reduce consumer's housework, eat
The advantages that convenient, clean, high-quality fresh, is increasingly favored by numerous families.With the improvement of people ' s living standards and live
The quickening of rhythm, it is desirable to easily eat without skin, fresh water chestnut, i.e. " fresh-cut water chestnut " product.But the product because
It removes the peel and receives serious machinery wound, be easy to happen brown stain and ruin and other issues, decline rapidly so as to cause its quality；
And also increase the infection chance of microorganism.It substantially reduces fresh-cut shelf life and reduces commodity value.
The currently commercially packaging for mostly using aggregation wrapper film such as polyethylene, polyvinyl chloride etc. as lightly processed fruits and vegetables
Material, however these polymer materials have be not easily decomposed in the natural environment, caused by longer-term persistence seriously pollution and portion
It is easy to generate " white pollution " to environment the features such as dividing the toxicity of material, therefore people expect novel biodegradable nothing
The food fresh keeping packaging material of poison.Pullulan is a kind of natural polysaccharide edible film coating antistaling agent, has source rich
Richness, it is biodegradable, it is non-toxic and tasteless, residual toxicity problem is not present, thus researched and developed as food packaging in recent years
Hot spot.The film that pullulan is formed after fruit surface coating creates micro- controlled atmosphere environment for fruit, functions similarly to single fruit gas
It stealthily substitutes the effect of dress, since with certain oxygen barrier and block water vapour and good tensile strength, fruit can be effectively reduced
The respiratory intensity and transpiration of vegetable make respiratory intensity be in optimum range, effectively slow down the gas exchanges of fruit, and reduce
Dehydration reduces the consumption of nutriment, reduces loss of rotting caused by due to infecting for pathogen, adjusts the physiology after fruit is adopted
Metabolism, to keep the freshness of fruits and vegetables, extends the shelf-life of fruits and vegetables.
Invention content
It can effectively inhibit the brown stain of fresh-cut water chestnut the object of the present invention is to provide one kind and extend fresh-cut water chestnut storage time
Composite preservative.
In order to solve the above technical problems, the technical solution adopted by the present invention is：A kind of composite fresh-keeping for water chestnut storage
Agent, including mass percent are 1-2% pullulan, 0.2-0.4% lauric monoglycerides and 0.01-0.03% Vitamin Cs
Acid, remaining is water.
Preferably, the mass percent of the pullulan is 1.5%, the quality percentage of the lauric monoglyceride
Than being 0.3%, the mass percent of the ascorbic acid is 0.02%, remaining is water.
It is provided by the invention to prepare a kind of method of the composite preservative for water chestnut storage, include the following steps：It takes
100-200 g pullulans dissolve by heating in water, are subsequently added into 20-40g lauric monoglycerides, 1-is added after cooling
3 g ascorbic acid add water quantitative to 10kg to get to a kind of composite preservative for water chestnut storage.
Specific implementation mode
Embodiment 1
1. taking 100g pullulans, dissolve by heating in water, is subsequently added into 20g lauric monoglycerides, is added after cooling
1g ascorbic acid adds water quantitative to 10kg.Select size almost the same, not damaged and pest and disease damage water chestnut peels off shell, upper
It states in Multiple preservative solutions and impregnates 3-5 minutes, pull drying out, then fresh-cut water chestnut is fitted into plastic box, is placed in 8-10 °C
At a temperature of store.
Embodiment 2
1. taking 150g pullulans, dissolve by heating in water, is subsequently added into 30g lauric monoglycerides, is added after cooling
2g ascorbic acid adds water quantitative to 10kg.Select size almost the same, not damaged and pest and disease damage water chestnut peels off shell, upper
It states in Multiple preservative solutions and impregnates 3-5 minutes, pull drying out, then fresh-cut water chestnut is fitted into plastic box, is placed in 8-10 °C
At a temperature of store.
Embodiment 3
1. taking 200g pullulans, dissolve by heating in water, is subsequently added into 40g lauric monoglycerides, is added after cooling
3g ascorbic acid adds water quantitative to 10kg.Select size almost the same, not damaged and pest and disease damage water chestnut peels off shell, upper
It states in Multiple preservative solutions and impregnates 3-5 minutes, pull drying out, then fresh-cut water chestnut is fitted into plastic box, is placed in 8-10 °C
At a temperature of store.
The present invention selects the storage effect results of comparison of the storage method in control group storage method and above-described embodiment as follows：
The variation of 1 water chestnut browning index of table
| Processing | 1 day | 2 days | 3 days | 4 days | 5 days |
| A groups | 0.4 | 1.3 | 2.3 | 2.9 | 3.6 |
| B groups | 0.4 | 0.9 | 1.6 | 2.3 | 2.8 |
| C groups | 0.2 | 0.5 | 1.2 | 1.8 | 2.2 |
| D groups | 0.2 | 0.4 | 0.7 | 1.1 | 1.5 |
| E groups | 0.3 | 0.4 | 1.1 | 1.6 | 2.4 |
Wherein：
A groups are the fresh-keeping effect of clear water control；
B groups are in clear water plus the fresh-keeping effect of sodium carboxymethylcellulose film；
C groups are the fresh-keeping effect of embodiment 1；
D groups are the fresh-keeping effect of embodiment 2；
E groups are the fresh-keeping effect of embodiment 3.
Browning degree is divided into 5 grades by the assessment of browning index according to water chestnut surface browned area size：0 grade without brown stain, 1
Grade browned area ＜ 20%, 2 grades of browned areas 20% -35%, 3 grades of browned areas 35% -50%, 4 grades of browned area ＞ 50%.It calculates
Formula：Browning index=Σ（Brown stain rank × the number of levels）/（Check total）.Browning index is more than 2, it is believed that basic
On lose commodity value.
As can be seen from the above table, composite preservative of the invention processing can effectively inhibit the brown stain on water chestnut surface, effect
Fruit is substantially better than control group and only the group of addition pullulan can store 4-5 days under 8-10 °C, and compareing can only store
2-3 days, composite preservative processing extended 2-3 days than control storage time.Therefore, composite preservative of the invention can be effective
The quality of fresh-cut water chestnut is maintained, the shelf-life of fresh-cut water chestnut is extended.
In addition to above preferred embodiment, the present invention also has other embodiments, those skilled in the art can be according to this
Invention makes various changes and modifications, and without departing from the spirit of the present invention, should all belong to appended claims of the present invention and determine
The range of justice.
Claims (3)
1. a kind of composite preservative for water chestnut storage, it is characterised in that：Including mass percent be 1-2% grow sturdily it is mould more
The ascorbic acid of sugar, the lauric monoglyceride of 0.2-0.4% and 0.01-0.03%, remaining is water.
2. a kind of composite preservative for water chestnut storage according to claim 1, it is characterised in that：The pullulan
Mass percent be 1.5%, the mass percent of the lauric monoglyceride is 0.3%, the quality hundred of the ascorbic acid
Divide than being 0.02%, remaining is water.
3. a kind of method preparing a kind of composite preservative for water chestnut storage as described in claim 1, it is characterised in that：
Include the following steps：100-200 g pullulans are taken, dissolves by heating in water, is subsequently added into 20-40g lauric monoglycerides
1-3 g ascorbic acid are added after cooling in ester, add water quantitative to 10kg to get to described a kind of for the compound of water chestnut storage
Antistaling agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310003474.7A CN103907674B (en) | 2013-01-05 | 2013-01-05 | A kind of composite preservative and preparation method thereof for water chestnut storage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310003474.7A CN103907674B (en) | 2013-01-05 | 2013-01-05 | A kind of composite preservative and preparation method thereof for water chestnut storage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103907674A CN103907674A (en) | 2014-07-09 |
| CN103907674B true CN103907674B (en) | 2018-09-18 |
Family
ID=51033946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310003474.7A Active CN103907674B (en) | 2013-01-05 | 2013-01-05 | A kind of composite preservative and preparation method thereof for water chestnut storage |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106035633A (en) * | 2016-05-27 | 2016-10-26 | 浙江大学 | Compound preservative and application thereof in inhibiting formation of carya cathayensis lipofuscin-like pigments |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002034527A (en) * | 2000-07-19 | 2002-02-05 | Saburo Ohara | Edible coating preparation which has fresh food deterioration-controlling function and promotes decrease in weight of container, packaging material or the like and reduction in distribution cost |
| CN101558784A (en) * | 2009-05-21 | 2009-10-21 | 天津科技大学 | Composite biological film-coating antistaling agent |
| CN101755900B (en) * | 2010-03-25 | 2011-08-10 | 山东商业职业技术学院 | Fruit and vegetable coating antistaling agent |
| CN102422868B (en) * | 2011-10-26 | 2013-04-10 | 山东商业职业技术学院 | Chilled meat coating antistaling agent |
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2013
- 2013-01-05 CN CN201310003474.7A patent/CN103907674B/en active Active
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Effective date of registration: 20230411 Address after: Building 20, No. 489 Hongtai 6th Road, Hongkeng Farm, Economic and Technological Development Zone, Xiaoshan District, Hangzhou City, Zhejiang Province, 311215 China (Zhejiang) Free Trade Pilot Zone Patentee after: Jinweike Food Ingredients (Hangzhou) Co.,Ltd. Address before: No. 717 Haitang Road, Xinjie Town, Xiaoshan District, Hangzhou City, Zhejiang Province, 311217 Patentee before: HANGZHOU JINJUNKE BIOLOGICAL PRODUCTS Co.,Ltd. |
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