Fresh-keeping method of phyllostachys pracecox shoots

A fresh-keeping method and bamboo shoot technology are applied in the directions of fruit and vegetable fresh-keeping, food preservation, and protection of fruits/vegetables with a protective coating, which can solve the problems of backward storage and transportation capacity of fruits and vegetables.

Inactive Publication Date: 2012-12-12
NANCHANG UNIV
View PDF4 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In 2010, the total output of fruits and vegetables in my country reached 100 million tons and 600 million tons respectively. However, due to the serious backwardness of our country's fruit and v

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] The invention will be further illustrated by the following examples.

[0019] Example.

[0020] 1. On-site cooling of thunder bamboo shoots.

[0021] 20 minutes after harvesting, immerse the bamboo shoots in 8 times the volume of ice-water mixture, stir slowly for 3 minutes, and the temperature of the bamboo shoots will be reduced to about 3°C ​​within half an hour. In order to kill surface bacteria, 0.15% sodium hypochlorite was mixed in ice water in advance.

[0022] 2. Coating film of thunder bamboo shoots.

[0023] 25g chitosan sugar was dissolved in 1 liter of 2% citric acid solution to prepare chitosan coating agent. Submerge the bamboo shoots in the coating agent for 20 seconds, gently shake off the residual liquid, and let it dry to form a film. All operations are carried out at 3°C, and the coating agent is also used after pre-cooling.

[0024] 3. Controlled atmosphere storage and packaging.

[0025] According to the ratio of oxygen:carbon dioxide 2.5:7.5...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a fresh-keeping method of phyllostachys pracecox shoots, which comprises the following steps of: (1) immersing the phyllostachys pracecox shoots into 5-10 times volume of an ice and water mixture within 30min after harvesting the phyllostachys pracecox shoots, stirring for 1-5min to cool the phyllostachys pracecox shoots to 3 DEG C; (2) dissolving 10-45g of chitosan sugar into 1 liter of 2% citric acid solution to obtain a film coating agent, immersing the phyllostachys pracecox shoots in step (1) into the film coating agent for 10-25 seconds, throwing away the residual solution, standing and drying to form a film; (3) preparing mixed gas of oxygen and carbon dioxide according to a volume ratio of the oxygen to the carbon dioxide being 1.5:8.5-2.0:3.0, then doping with 5-30% (volume) of nitrogen to prepare the mixed gas for air-conditioned storage of the phyllostachys pracecox shoots; packaging the phyllostachys pracecox shoots in the mixed gas of the oxygen, the carbon dioxide and the nitrogen by a food-grade aluminum foil bag, and storing at 3 DEG C in a refrigerator. The method provided by the invention realizes medium and long-term freshness preservation of the phyllostachys pracecox shoots, still keeps faint scent and crisp characteristic after 90-day storage, and achieves high quality levels in sensory evaluation, weight loss rate, protein content, total sugar content and crude fiber content.

Description

technical field [0001] The invention belongs to the field of storage and processing of agricultural products, and relates to a fresh-keeping technology for agricultural products of fruits and vegetables, in particular to fresh-keeping of bamboo shoots and other bamboo shoots. Background technique [0002] Phyllostachys praecox is an excellent cultivated edible bamboo species unique to China. It was originally mainly distributed in the hilly plains in northwest Zhejiang. Thunder bamboo has the characteristics of early shoots, high yield, delicious shoots, annual shoots, high benefits, and strong adaptability. Since the 1990s, it has been grown in Jiangxi, Jiangsu, Anhui, Fujian, Hubei, Yunnan and Guizhou provinces. Some counties (cities) and most counties (cities) in Zhejiang are widely introduced and cultivated. [0003] Like other bamboo shoots, the harvesting time of thunder bamboo shoots is relatively concentrated, the harvesting period is short, the vitality is strong a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): A23B7/04A23B7/16A23B7/148
Inventor 吴志华陈红兵杨安树李欣佟平潜怡
Owner NANCHANG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap