Nitrous Oxide-Ozone Combined Application in Modified Atmosphere Preservation of Fresh Cornus officinalis

A nitrous oxide and modified atmosphere fresh-keeping technology, which is applied in the fields of application, food preservation, food science, etc., can solve the problems of slowing down the respiration of dogwood, prolonging the storage time of fresh dogwood, reducing the intensity of microbial activity, etc., to slow down enzymatic browning Change and mildew decay rate, reduce the probability of product deterioration, and inhibit the effect of mildew and decay

Inactive Publication Date: 2017-12-29
HENAN UNIV OF SCI & TECH
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Hypoxic and low-temperature storage is another method to prolong the storage time of Cornus officinalis. This method slows down the respiration of Cornus officinalis and reduces the microbial growth rate by adjusting the nitrogen, oxygen and carbon dioxide content of the storage environment and performing low-temperature storage at 2-4°C. Activity intensity, compared with the conventional low-temperature storage method, can prolong the storage period by 6-8 days, but in terms of the storage process, the number of microorganisms has not decreased, and the enzyme activity has not been inhibited, so this method has no effect on prolonging the storage time of fresh dogwood. limited effect

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Nitrous Oxide-Ozone Combined Application in Modified Atmosphere Preservation of Fresh Cornus officinalis

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Put the picked fresh dogwood into a 10L polyethylene fresh-keeping box, pass nitrous oxide into the fresh-keeping box through the trachea, adjust the volume concentration (volume fraction) of nitrous oxide to 20%, and the corresponding oxygen The volume concentration (i.e. the volume fraction) is about 16%, and it is maintained for 30 minutes; then the ozone gas is passed into the fresh-keeping box at a ventilation rate of 0.1L / min, and the gas is stopped after 3 minutes, and maintained for 3 minutes; after the pretreatment, Infuse nitrogen and appropriate amount of conventional air into the crisper at a rate of 2L / min until the concentration of nitrous oxide in the crisper is reduced to 1%, and the oxygen concentration is about 3%; seal the crisper with a fresh-keeping plastic bag, Put it in a 4°C refrigerator for low-temperature storage. Take out the fresh-keeping box every 5 days, and inject an appropriate amount of nitrogen and a small amount of nitrous oxide into th...

Embodiment 2

[0024] Put the picked fresh dogwood into a 10L polyethylene fresh-keeping box, pass nitrous oxide into the fresh-keeping box through the trachea, adjust the nitrous oxide concentration to 40%, and the corresponding oxygen concentration to about 12%, and maintain it for 90 minutes Then feed ozone gas into the fresh-keeping box with a ventilation rate of 0.1L / min, stop the air intake after passing through for 3min, and maintain it for 6min; after the pretreatment finishes, feed nitrogen gas and Appropriate amount of conventional air until the concentration of nitrous oxide is reduced to 1%, and the concentration of oxygen is about 2%; seal the fresh-keeping plastic bag on the jacket of the crisper, and put it in a 4°C refrigerator for low-temperature storage. Take out the fresh-keeping box, and inject an appropriate amount of nitrogen and a small amount of nitrous oxide to maintain the oxygen concentration in the fresh-keeping box at about 2% and the nitrous oxide concentration a...

Embodiment 3

[0027]The method of low-temperature controlled-atmosphere storage of fresh cornus officinalis combined with ozone gas in this embodiment is to place the picked fresh cornus officinalis in a 10L polyethylene crisper, and pass the nitrous oxide into the crisper through the trachea , adjust the concentration of nitrous oxide to 60%, and the corresponding oxygen concentration to about 8%, and maintain it for 70 minutes; then pass in ozone gas at a ventilation rate of 0.1L / min, stop the gas flow after 3 minutes, and maintain it for 5 minutes; After the treatment, nitrogen and an appropriate amount of conventional air are introduced into the fresh-keeping box at a rate of 2L / min until the concentration of nitrous oxide is reduced to 1%, and the oxygen concentration is about 4%; seal the fresh-keeping box with a fresh-keeping plastic bag , put it in a 4°C refrigerator for low-temperature storage, take out the fresh-keeping box every 5 days, and inject an appropriate amount of nitrogen...

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

A modified atmosphere fresh-keeping method for combined use of nitrous oxide-ozone on fresh dogwood belongs to the technical field of fresh-keeping and storage of agricultural products. First, nitrous oxide gas is used to inactivate the enzymes of fresh dogwood, and then ozone is used for sterilization treatment, and then the fresh Cornus officinalis can be refrigerated and kept fresh in a controlled atmosphere environment with a volume fraction of nitrous oxide of 1% and an oxygen volume fraction of 2% to 4%. In the present invention, nitrous oxide and ozone are combined to be used in the modified atmosphere fresh-keeping storage of fresh dogwood, so that the fresh-keeping storage time of fresh dogwood is extended from 5 to 7 days in conventional refrigeration to 25 to 30 days, and the effective protection of fresh dogwood is also effectively protected. Composition and product appearance.

Description

technical field [0001] The invention belongs to the technical field of fresh-keeping and storage of agricultural products, and in particular relates to a modified-atmosphere fresh-keeping and storage method in which nitrous oxide and ozone are jointly applied to fresh dogwood. Background technique [0002] Cornus officinalis is the mature pulp of Cornus officinalis, which has the effect of nourishing the liver and kidney, astringent meridian and solidifying. It is used for dizziness, tinnitus, soreness of waist and knees, impotence, nocturnal emission, enuresis, frequent urination, metrorrhagia, profuse sweating, prostration, internal heat and quenching thirst It is a commonly used Chinese herbal medicine. The main active ingredients of Cornus officinalis are loganin, ursolic acid, oleanolic acid, morroniside, etc. Among them, loganin is one of the water-soluble active ingredients in Cornus officinalis, and the "Chinese Pharmacopoeia" stipulates that the content of loganin ...

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
Patent Type & Authority Patents(China)
IPC IPC(8): A23L3/3409A23L3/3418A23L3/36
Inventor 刘云宏王乐颜李晓芳朱文学罗磊孙悦苗帅
Owner HENAN UNIV OF SCI & TECH
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