Preservative for longan and preparation method and preservation method thereof

The technology of a preservative and longan is applied in the field of longan preservative and its preparation and preservation, and can solve the problems of poor fruit browning control effect and difficulty in long-term storage of longan, and achieve the effects of good preservation, low degree of rot and reasonable formula.

Inactive Publication Date: 2015-09-23
AGRI PROD PROCESSING INST GUANGXI ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Several other storage and preservation methods are still difficult to store

Method used

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  • Preservative for longan and preparation method and preservation method thereof
  • Preservative for longan and preparation method and preservation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Percentage by weight: 1% Forsythia, 3% Houttuynia cordata, 2% mulberry leaves, 0.5% cloves, 0.2% hundred steps, 0.5% lotus leaves, 1% mugwort leaves, 0.2% ginkgo leaf extract, 1.5% tea tree oil, 0.6% eugenol, 1% chitosan, 0.06% sec-butanol, 0.05% sucrose fatty acid ester, and the rest is water.

[0019] The specific process steps are as follows:

[0020] 1. Preparation of traditional Chinese medicine component antistaling agent

[0021] 1), dry the mulberry leaves, lotus leaves, mugwort leaves, and ginkgo leaves matched in proportion, crush them, mix them with 30-40 times deionized water, heat and condense and reflux for 2 hours, and collect the extract; then add the same volume of deionized water , heating and condensing to reflux for 1.5h, combining the two extracts, filtering, and concentrating to an extract with a concentration of 1g / ml to obtain the Chinese medicine compound extract concentrate solution A;

[0022] 2) Grind Forsythia, Houttuynia cordata, and Baib...

Embodiment 2

[0030] Percentage by weight: 4% Forsythia, 2% Houttuynia cordata, 1% mulberry leaf, 0.1% clove, 0.8% hundred steps, 1.5% lotus leaf, 4% mugwort leaf, 0.8% ginkgo leaf extract, 0.5% tea tree oil, 0.2% eugenol, 1.5% chitosan, 0.5% sec-butanol, 0.1% sucrose fatty acid ester, and the rest is water.

[0031] Concrete processing steps of the present invention are as follows:

[0032] 1. Preparation of traditional Chinese medicine component antistaling agent

[0033] 1), dry the mulberry leaves, lotus leaves, mugwort leaves, and ginkgo leaves matched in proportion, crush them, mix them with 30-40 times deionized water, heat and condense and reflux for 2 hours, and collect the extract; then add the same volume of deionized water , heating and condensing to reflux for 1.5h, combining the two extracts, filtering, and concentrating to an extract with a concentration of 1g / ml to obtain the Chinese medicine compound extract concentrate solution A;

[0034] 2) Grind Forsythia, Houttuynia ...

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Abstract

The invention provides preservative for longan and a preparation method and a preservation method thereof. The preservative for longan comprises, by weight percentage, 1-4% of fructus forsythia, 2-3% of herba houttuyniae, 1-2% of folium mori, 0.1-0.5% of clove, 0.2-0.8% of stemonae, 0.5-1.5% of lotus leaves, 1-4% of folium artemisiae argyi, 0.2-0.8% of ginkgo biloba extract, 0.5-1.5% of tea tree oil, 0.2-0.6% of eugenol, 1-1.5% of chitosan, and 0.02-0.2% of sec-butyl alcohol, 0.05-0.1% of emulgator, and the rest is water. According to the preservative for longan and the preparation method and the preservation method thereof, the formula is reasonable, the rotten degree is low, the respiratory rate is inhibited obviously, and nutritional ingredient such as VC, organic acid and soluble solid sugar can be preserved properly.

Description

technical field [0001] The invention relates to the field of fruit fresh-keeping, in particular to a longan fresh-keeping agent and a preparation and fresh-keeping method thereof. Background technique [0002] Longan (longan) is a common tropical fruit that is loved for its sweet taste. However, longan is not resistant to storage and will deteriorate quickly at room temperature. The existing longan fresh-keeping technologies at home and abroad mainly include the following types: traditional folk fresh-keeping methods at room temperature, low-temperature preservation methods, controlled atmosphere storage and preservation methods, and sulfur dioxide treatment and preservation methods. Well, the storage period is longer, but there is a problem of sulfur dioxide residue, which is harmful to the human body and needs further improvement. Several other storage and preservation methods are still difficult to store longan for a long time, and the control effect on fruit browning i...

Claims

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Application Information

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IPC IPC(8): A23B7/154A23B7/16
Inventor 李丽李昌宝孙健盛金凤何雪梅郑凤锦廖芬李杰民刘国明零东宁
Owner AGRI PROD PROCESSING INST GUANGXI ACADEMY OF AGRI SCI
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