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A kind of preservation method of lotus root with skin

A fresh-keeping method, the technology of lotus root peeling, is applied in the direction of protecting fruits/vegetables with a coating protective layer, which can solve the problems of weight loss, browning of fresh lotus root during storage, and decrease in hardness, and achieves low cost, good fresh-keeping effect, and good fresh-keeping effect of effect

Inactive Publication Date: 2015-08-05
GUANGXI UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a fresh-keeping method for lotus root with skin, which has a good fresh-keeping effect and a fresh-keeping period of more than 5 months, using a composite coating preservative made by various reagents as a fresh-keeping agent for lotus root with skin , which solves the problems of browning, hardness reduction and weight reduction of fresh lotus root during storage

Method used

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  • A kind of preservation method of lotus root with skin

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Embodiment 1

[0021] Embodiment 1: a kind of fresh-keeping method of lotus root with skin comprises the following steps:

[0022] (1) Selection of raw material lotus root: after purchasing the lotus root, choose fresh lotus root with tender and thick meat, no serious mechanical damage, no pests and diseases, and fresh lotus root. Eliminate seriously injured, diseased, too small and too thick lotus roots.

[0023] (2) Cleaning: Wash off the silt and other impurities on the lotus root with water, and clean the lotus root; do not scrub with hard objects (such as straw, woven bags) to prevent scratching the lotus root skin, causing browning and rot.

[0024] (3) Sterilization: Put the lotus root in 100mg / L chlorine dioxide solution, soak for 15 minutes, take it out, rinse the sterilized lotus root slices with water to remove residual ClO2, take it out and drain.

[0025] (4) Preserve color and crispness: add lotus root to calcium chloride solution with a mass concentration of 0.4%, soak for 15...

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Abstract

The invention relates to a preservation method of lotus roots, and particularly relates to a preservation method for preserving fresh cut lotus roots by a compound coating preservative made from multiple reagents. The preservation method comprises the steps of after juicing onions, mixing with substances such as chitosan, sodium alginate and modified nanometer SiOx, and then regulating the pH value of the mixture by citric acid to obtain the compound coating preservative; then soaking the preprocessed lotus roots in the compound coating preservative for preserving the lotus roots; and finally, packaging in vacuum and refrigerating under a proper condition. According to the preservation method, the compound preservative made from the multiple reagents is used for preserving the fresh cut lotus roots, the preservation effect is good, the preservation period can reach above 5 months, and the problems of brown stain, hardness reduction, weigh reduction and the like during the storage of the fresh lotus roots are solved. In addition, the preservation method has the advantages of simple processing flow, low cost, environmental friendliness, convenience and the like.

Description

technical field [0001] The invention relates to a fresh-keeping method of lotus root with skin, in particular to a fresh-keeping method of lotus root with skin which is processed by using a composite coating film preservative made by various reagents. Background technique [0002] Lotus root is an important aquatic vegetable in my country, mainly distributed in the Yangtze River Delta, Pearl River Delta, and Dongting Lake. At present, the planting area of ​​lotus root in my country has reached more than 3 million square kilometers, accounting for 1 / 3 of the planting area of ​​aquatic vegetables. There is a great demand for lotus root in northern my country and the international market, but its sales and export are affected due to the high water content of lotus root, easy browning, and intolerance to storage and transportation. Therefore, the present invention mainly researches the fresh-keeping of lotus root with skin by applying compound antistaling agent to keep the nutr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23B7/16
Inventor 许金蓉周明全孟陆丽熊建文汪超丁佑铭胡中立
Owner GUANGXI UNIVERSITY OF TECHNOLOGY
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