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Lotus root coating preservation method

A technology of film preservation and film preservation agent, which is applied in the direction of protecting fruits/vegetables with a coating protective layer, can solve the problems of low economic income of farmers, short time, limited sales range and sales time, etc., and increase sales , Expand the scope of sales, increase the effect of farmers' income

Inactive Publication Date: 2016-04-06
YANGZHOU HUAGUI FOODS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But it can only achieve a shelf life of 1 month. Due to the short time, the sales scope and sales time are limited, so that the economic income of farmers is not high.

Method used

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Examples

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Embodiment Construction

[0013] A kind of lotus root coating fresh-keeping method, its specific method is as follows:

[0014] (1) Wash, remove knots and sort lotus roots first;

[0015] (2) Use a compound coating film preservative of 2.5% chitosan, 2.0% soybean protein isolate, and 1.5% plant higher fatty acid lipids to brush, and brush the whole body of lotus root evenly; Soak it in the preservative and take it out immediately;

[0016] (3) Inner packaging with fresh-keeping plastic film and outer carton packaging;

[0017] (4) Store in a cold room with a temperature of -1-4°C and a humidity of 80%.

[0018] Among them, chitosan effectively improves the moisture content of the epidermis, maintains the moisture content of the epidermis at 25%-30%, and prolongs the fresh-keeping period; the protein content of soybean protein isolate is more than 90%, and there are nearly 20 kinds of amino acids. Amino acid increases the protein content and strengthens vitamins. Due to its strong functionality, the ...

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Abstract

The invention relates to the technical field of lotus root preservation methods, in particular to a lotus root coating preservation method. The specific method consists of: (1) firstly subjecting lotus roots to cleaning, node removal and sorting; (2) employing a compound coating antistaling agent composed of 2.5% of chitosan, 2.0% of soybean protein isolate, and 1.5% of plant high fatty acid to conduct brush coating or dip-coating on the lotus roots; (3) conducting inner packing with a preservative plastic film, and performing carton packing externally; and (4) carrying out storage in a cold storage with a temperature ranging from -1 to 4 DEG C and a humidity of 80%. The method provided by the invention can improve the lotus root preservation time and prolong the shelf life, prolongs the preservation period from the original one month to more than 2-3 months, expands the lotus root sales range, increases sales, promotes the development of the lotus root industry, and increases the income of farmers.

Description

technical field [0001] The invention relates to the technical field of lotus root fresh-keeping methods, in particular to a lotus root fresh-keeping method coated with film. Background technique [0002] The original lotus root preservation is to adopt the water conservation vacuum packaging technology. The specific process is: 1. Clean the fresh lotus root first, remove the joints and put it in 0.1% citric acid aqueous solution; 2. Manually sort and remove defective products such as mechanical injuries, ground maggots, hemp tendons, and rough skin; 3. Use plastic bags Put in 30% packaging liquid for vacuum packaging; 4. Inspect and pack into cartons and put them in a cold storage at 1-5°C for delivery. But it can only achieve a shelf life of 1 month. Due to the short time, the sales scope and sales time are limited, and the economic income of farmers is not high. Contents of the invention [0003] In order to overcome the deficiencies in the prior art, the invention pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B7/16
Inventor 尹兆祥
Owner YANGZHOU HUAGUI FOODS CO LTD
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