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Selenium-rich antistaling agent for fruits and vegetables and antistaling solution prepared therefrom

The technology of a preservative and a biological preservative, which is applied in the directions of fruit and vegetable preservation, food preservation, food science, etc., can solve the problems of complex production methods, low utilization rate of selenium, and high production costs, achieve high social and economic benefits, and improve Selenium levels, effects on reducing the incidence of diseases associated with insufficient selenium intake

Inactive Publication Date: 2008-11-12
SICHUAN NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In view of the deficiencies in the prior art, the object of the present invention is to provide a fruit and vegetable preservative with selenium-enriched function, which can improve the selenium content of fruits and vegetables by utilizing the self-respiration of fruits and vegetables in the process of fruit and vegetable storage and preservation, so as to solve the problems of the prior art. The selenium content level of the food chain exists, either by the limitation of the selenium content level of the soil in the area, or the selenium utilization rate is low, the production method is complicated, the operability is poor, and the production cost is high. Fruits and vegetables can supplement the selenium intake of the human body and reduce the occurrence of diseases related to insufficient selenium intake

Method used

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  • Selenium-rich antistaling agent for fruits and vegetables and antistaling solution prepared therefrom
  • Selenium-rich antistaling agent for fruits and vegetables and antistaling solution prepared therefrom
  • Selenium-rich antistaling agent for fruits and vegetables and antistaling solution prepared therefrom

Examples

Experimental program
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Effect test

Embodiment 1

[0033] Take 5 parts by mass of biological antistaling agent chitosan powder and 1 part by mass of sodium selenite powder to prepare a selenium-enriched functional antistaling agent for fruits and vegetables, and add water to prepare a solution with a mass concentration of 0.8% of the functional antistaling agent during use. Chitosan is soaked in hydrochloric acid with a mass concentration of 10 by the shrimp shell to remove inorganic salts in the shell for about 24 hours, and then boiled with a 40% sodium hydroxide solution for about 0.5 hour to remove the shell protein, and then The acetyl group is removed with 70% alkali for about 4 hours, and the chitosan is prepared through separation, drying and crushing.

Embodiment 2

[0035] Take 25 parts by mass of biological antistaling agent chitosan powder and 1 part by mass of sodium selenite powder to prepare a selenium-enriched functional antistaling agent for fruits and vegetables, and add water to prepare a solution with a mass concentration of 0.8% of the functional antistaling agent during use. Chitosan is soaked in hydrochloric acid with a mass concentration of 15% by the crab shell for about 20 hours to remove inorganic salts in the shell, and then boiled with a 30% sodium hydroxide solution for about 0.7 hours to remove the shell protein , and then use 75% alkali to remove the acetyl group for about 3.5 hours, and then prepare chitosan through separation, drying and crushing.

Embodiment 3

[0037] Take 1 mass part of biological antistaling agent chitosan powder and 1 mass part of selenoprotein powder to prepare a selenium-enriched functional antistaling agent for fruits and vegetables, and add water to prepare a solution with a mass concentration of 0.8% of the functional antistaling agent during use. Chitosan is soaked in hydrochloric acid of 20% by mass concentration to remove the inorganic salt in the shell by crab shell, and then boiled with mass concentration of 35% sodium hydroxide solution for about 0.5 hour to remove the shell protein, Then use 75% alkali to remove the acetyl group for about 3.4 hours, and then prepare chitosan through separation, drying and crushing.

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Abstract

The present invention provides a preservative of garden stuff with Se-enriched function, which comprises a biological preservative and selenium compounds, has no harm to the health in production and using, and does not have forbidden carcinogen and other pollutant. The preservative of the invention endows the garden stuff with functions of health care, has the advantages of enhancing the absorbance of Se, easy control of Se-enriching content and low price.

Description

technical field [0001] The present invention relates to the fresh-keeping technology of fruits and vegetables, more specifically, relates to a selenium-enriched functional fresh-keeping agent for storing and keeping fresh of fruits and vegetables after picking. Background technique [0002] Fruits and vegetables are rich in nutrition and are popular snack foods. Research by medical experts has shown that people who eat more fruits and vegetables are less likely to suffer from heart disease, cancer, stroke and diabetes. However, because fruits and vegetables are restricted by natural conditions, especially fruits, which have obvious seasonal and regional characteristics, this has formed a contradiction with people's consumption demand for fruits throughout the year. Moreover, the fruit suffers serious losses due to the influence of factors such as physics, physiology and pathology after picking. According to investigations, the current loss rate of fruit in China is about 20...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B7/153A23B7/154A23B7/157
Inventor 刘兴艳张跃朱晓帆朱静平
Owner SICHUAN NORMAL UNIVERSITY
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