Waxberry coating preservative and preparation method thereof

A film-coating preservative and preservative technology, which is applied to the preservation of fruits and vegetables, the protection of fruits/vegetables with a coating protective layer, and the preservation of food, etc. General and other problems, to achieve the effect of prolonging the preservation time, enhancing the preservation effect, and enhancing the water solubility

Inactive Publication Date: 2017-07-25
农玉金
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chitosan has good biological activity and antibacterial ability, and can be used as a coating preservative, but the preservation time is short and the effect is average, and its antibacterial effect and gas exchange performance need to be further enhanced

Method used

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  • Waxberry coating preservative and preparation method thereof
  • Waxberry coating preservative and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The red bayberry coating preservative of this embodiment is mainly made of the following raw materials in parts by weight: 0.1 part of modified chitosan, 0.6 part of ginger essential oil, 0.8 part of linseed gum, 1.3 part of lysozyme, 0.5 part of propolis, and 0.3 part of vitamin E 0.7 parts of tea polyphenols, 0.5 parts of sucrose esters and 90 parts of water.

[0033] The preparation method of the present embodiment red bayberry coating preservative comprises the following steps:

[0034] (1) take each raw material by above-mentioned parts by weight;

[0035] (2) Preparation of modified chitosan: adding chitosan to 20 times by weight of chitosan and soaking in an ethanol solution of 80% by volume for 1 hour, heating to 30° C., adding to the heated material Adding the concentration of 5 times by weight of the chitosan is a 30% sodium hydroxide solution and stirring for 30 minutes, leaving it to stand for 12 hours, filtering off the supernatant to obtain alkalized chit...

Embodiment 2

[0041] The red bayberry coating antistaling agent of this embodiment is mainly made of the following raw materials in parts by weight: 0.7 part of modified chitosan, 0.3 part of ginger essential oil, 0.6 part of garlic essential oil, 1.5 part of linseed gum, 1.8 part of lysozyme, 0.7 part of propolis 0.7 parts of vitamin E, 0.9 parts of tea polyphenols, 1 part of sucrose ester and 100 parts of water.

[0042] The preparation method of the present embodiment red bayberry coating preservative comprises the following steps:

[0043] (1) take each raw material by above-mentioned parts by weight;

[0044] (2) Preparation of modified chitosan: adding chitosan to 30 times by weight of chitosan and soaking in 90% ethanol solution for 2 hours, heating to 40°C, adding to the heated material Adding the concentration of 10 times by weight of the chitosan is a 50% sodium hydroxide solution and stirring for 40 minutes, leaving it to stand for 24 hours, filtering off the supernatant to obta...

Embodiment 3

[0050] The red bayberry coating antistaling agent of this embodiment is mainly made of the following raw materials in parts by weight: 0.5 part of modified chitosan, 0.2 part of ginger essential oil, 0.2 part of garlic essential oil, 0.4 part of cnidium essential oil, 1 part of linseed gum, bacteriolysis 1.5 parts of enzyme, 0.6 part of propolis, 0.4 part of vitamin E, 0.8 part of tea polyphenol, 0.9 part of sucrose ester and 95 parts of water.

[0051] The preparation method of the present embodiment red bayberry coating preservative comprises the following steps:

[0052] (1) take each raw material by above-mentioned parts by weight;

[0053] (2) Preparation of modified chitosan: adding chitosan to 25 times by weight of chitosan and soaking in an ethanol solution of 85% in volume concentration for 1.5 hours, heating to 35° C., adding to the heated material Adding the concentration of 8 weight times of the chitosan is a 40% sodium hydroxide solution and stirs for 35 minutes,...

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Abstract

The invention discloses a waxberry coating preservative and a preparation method thereof and relates to the technical field of waxberry preservation. The preservative is prepared from the following raw materials: modified chitosan, plant essential oil, flaxseed gum, lysozyme, propolis, vitamin E, tea polyphenol, sucrose ester and water. According to the invention, the modified chitosan and various preservatives with anti-bacteria and insecticidal effects are combined for preparing the waxberry coating preservative; after the chitosan is chemically modified, the anti-bacteria property, permeability and water solubility are enhanced; the preservation effect is enhanced, the preservation time is prolonged and the preservative is nontoxic and residue-free; after the preservative disclosed by the invention is used for preserving waxberry, the refrigeration freshness period is 13-15 days and the shelf life under normal temperature is 6-7 days.

Description

[0001] 【Technical field】 [0002] The invention relates to the technical field of red bayberry fresh-keeping, in particular to a red bayberry coated fresh-keeping agent and a preparation method thereof. [0003] 【Background technique】 [0004] Waxberry is a berry fruit, soft and juicy, rich in nutrition, and loved by the public. However, the freshly picked red bayberry breathes vigorously and is very easy to deteriorate. In addition, the water content is high, the tissue is delicate, and it is extremely susceptible to deterioration caused by mechanical damage and microbial infection. It is difficult to store and keep fresh in the previous period. According to statistics, the loss caused by rot and deterioration of red bayberry accounts for more than 30% of the total weight every year, and the economic loss is very large. [0005] The current preservation methods of red bayberry mainly include radiation storage, quick-freezing storage and controlled atmosphere storage, etc., bu...

Claims

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Application Information

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IPC IPC(8): A23B7/16A23B7/155A23B7/154
CPCA23B7/154A23B7/155A23B7/16A23V2002/00A23V2200/10A23V2250/511A23V2250/21A23V2250/712
Inventor 农玉金
Owner 农玉金
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