Chitosan oligosaccharide compounded preparation and application in prolonging shelf life of fruits

A technology of chitosan oligosaccharide and preparation is applied in the field of storage and preservation of agricultural products to achieve the effects of reducing chemical residues, using less amount and prolonging the shelf life of fruits

Inactive Publication Date: 2015-05-27
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After retrieval, it was found that the fruit preservative with oligochitosan as the main active ingredient has been reported in patent 2008101192145, but compared with it, the compound preparation in the present invent

Method used

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  • Chitosan oligosaccharide compounded preparation and application in prolonging shelf life of fruits
  • Chitosan oligosaccharide compounded preparation and application in prolonging shelf life of fruits
  • Chitosan oligosaccharide compounded preparation and application in prolonging shelf life of fruits

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0018] The preparation of the low-concentration compound preparation commonly used in Example 1

[0019] The active ingredients of this compound preparation are chitosan oligosaccharides, organic acids and growth inhibitors, wherein the organic acids include tartaric acid, oxalic acid, acetic acid, lactic acid, malic acid, citric acid, citric acid, ascorbic acid, benzoic acid, salicylic acid, Caffeic acid, phytic acid, amino acids, etc.; the growth inhibitors include gibberellin, 2,4-D, carotene, penicillin, methyl tallow acetate, brassinolide, naphthalene acetic acid, jasmonic acid and its methyl esters Ester, aminoethoxyvinylglycine (AVG), aminocaproic acid (AOA), sodium benzoate, ortho-nitrophenol (PNP), polyamine, 1-methylcyclopropene (1-MCP), etc.; adding well-known Solvents and auxiliary agents are formulated into water, emulsifiable concentrate, soluble liquid, water emulsion, microemulsion and suspension. The present embodiment has introduced a kind of commonly used w...

Example Embodiment

[0022] Example 2 The shelf life of cherry tomatoes can be prolonged by using this compound preparation

[0023] The test was carried out in 2012, and two treatments were designed: treatment 1, control, no treatment; treatment 2, soaked cherry tomatoes after picking with the compound preparation of Example 1 for 3 minutes, air-dried and stored. After 7 days, the weight loss rate, total acid content, total sugar content and vitamin C (Vc) content were counted. The specific results are shown in Table 1.

[0024] Table 1. The effect of using this compound preparation on the weight loss rate, total acid, total sugar and Vc content of cherry tomatoes stored for 7 days

[0025] deal with

Example Embodiment

[0026] Example 3 The shelf life of star fruit can be extended by using this compound preparation

[0027] The test was carried out in 2012, and two treatments were designed: treatment 1, control, no treatment; treatment 2, soaking the picked star fruit with the compound preparation of Example 1 for 3 minutes, air-dried and stored. After 12 days, the weight loss rate, total sugar content and Vc content were counted. The specific results are shown in Table 2.

[0028] Table 2. The effect of using this compound preparation on the weight loss rate, total sugar and Vc content of carambola stored for 12 days

[0029] deal with

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Abstract

A chitosan oligosaccharide compounded preparation for prolonging shelf life of fruits contains 0.3-5% of chitosan oligosaccharide with a fresh-keeping function, 0.1-2% of organic acid and 0.03-0.5% of a growth inhibitor. The compounded preparation is applied to fruits. By introducing chitosan oligosaccharide with the fresh-keeping function into a fruit preservative, the chitosan oligosaccharide compounded preparation has a double effect of sterilization and preservation. In addition, a medicament with chitosan oligosaccharide and organic acid as main components has advantages of safety, nontoxicity, low cost and low dosage, and is environmentally friendly.

Description

technical field [0001] The invention belongs to the field of storage and fresh-keeping of agricultural products, in particular to the application of a compound preparation with chitosan oligosaccharide, organic acid and growth inhibitor as main active substances in extending the shelf life of fruits. Background technique [0002] With the improvement of living standards, people's consumption of fruits is also increasing. However, due to the high water content of the fruit, the skin is relatively fragile, which makes it easy to spoil and deteriorate during storage. Therefore, with the development of production, the problem of storage, transportation and preservation of fruits has become increasingly prominent. Due to its low cost, simple and convenient application, quick and obvious effect, chemical preservation has become the preferred method for post-harvest preservation of fruits by farmers and herdsmen, and is currently the most widely used preservation method in the dom...

Claims

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Application Information

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IPC IPC(8): A23B7/154
Inventor 尹恒张运红杜昱光赵小明王文霞
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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