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Special fresh keeping agent and fresh keeping method for syzygium samarangense fruits

A fresh-keeping method and preservative technology, applied in the fields of fruit and vegetable fresh-keeping, application, food preservation, etc., can solve the problems of being unable to effectively prevent the flocculent softness of lotus fruit, unclear mechanism and regulation mechanism, affecting fruit quality and flavor, etc. Achieve the effects of delaying the decline of VC content and soluble solids content, being easy to popularize and use, and retaining nutrients

Inactive Publication Date: 2016-05-18
JIMEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Postharvest physiological problems such as respiratory metabolism type, physiological characteristics of maturity and aging, tolerance to cold storage temperature and other postharvest physiological problems of Lianwu fruit have not been reported. , cannot effectively prevent the flocculent and soft phenomenon of the lotus mist fruit after harvest
[0005] The Chinese patent application with the publication number CN103493880A provides a fresh-keeping method for lotus mist. The formula of the fresh-keeping agent is: chitosan 16%, γ-aminobutyric acid 0.3%, calcium lactate 1.5%, food grade glycerin 4%, Distilled water 78.2%; however, the lotus mist preservative needs to be used in combination with heat stress, which requires strict temperature conditions and complicated operation steps
The pulp structure of Lianwu fruit is loose, and the quality and flavor of the fruit will be affected after heat shock treatment

Method used

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  • Special fresh keeping agent and fresh keeping method for syzygium samarangense fruits

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] (1) Select 12kg of lotus mist fruit with uniform size, consistent color and maturity, and no mechanical damage and infection by diseases and insect pests;

[0024] (2) Put the fruit in a 30L vacuum desiccator, pass nitrogen (99.9%) into the desiccator with a pure nitrogen cylinder for 20 minutes to discharge the oxygen in the desiccator, and take the purity from the nitrogen monoxide (NO) gas cylinder. Inject 450 μL of 99.9% NO gas into the vacuum desiccator so that the concentration of NO gas in the vacuum desiccator is 15 μL·L -1 , sealed for 60 minutes, then open the dryer to ventilate for 20 minutes;

[0025] (3) Put the NO gas-treated fruit in a container, and inject the prepared preservative solution into it. The concentration of the preservative is: indole acetic acid (IAA) 15 μmol L -1 ; Gibberellin (GA 3 )80μmol·L -1 ; 6-benzyladenine (6-BA) 30 μmol L -1 ;

[0026] (4) The fruit must be immersed in the preservative solution for 8 minutes, and then placed i...

Embodiment 2

[0032] (1) Select 12kg of lotus mist fruit with uniform size, consistent color and maturity, and no mechanical damage and infection by diseases and insect pests;

[0033] (2) Put the fruit in a 30L vacuum desiccator, use a pure nitrogen cylinder to pass nitrogen (99.9%) into the desiccator for 5 minutes to discharge the oxygen in the desiccator, and take the purity from the nitrogen monoxide (NO) gas cylinder. Inject 3000 μL of 99.9% NO gas into the vacuum desiccator so that the concentration of NO gas in the vacuum desiccator is 100 μL·L -1 , sealed for 30 minutes, then open the dryer to ventilate for 60 minutes;

[0034] (3) Put the NO gas-treated fruit into the container, and inject the prepared preservative solution into it. The concentration of the preservative is: indole acetic acid (IAA) 20 μmol L -1 ; Gibberellin (GA 3 )50μmol·L -1 ; 6-benzyladenine (6-BA) 100 μmol L -1 ;

[0035] (4) The fruit must be immersed in the preservative solution for 3 minutes, and then ...

Embodiment 3

[0040] (1) Select 12kg of lotus mist fruit with uniform size, consistent color and maturity, and no mechanical damage and infection by diseases and insect pests;

[0041] (2) Put the fruit in a 30L vacuum desiccator, use a pure nitrogen cylinder to pass nitrogen (99.9%) into the desiccator for 35 minutes to discharge the oxygen in the desiccator, and take the purity from the nitrogen monoxide (NO) gas cylinder. Inject 60 μL of 99.9% NO gas into the vacuum desiccator so that the concentration of NO gas in the vacuum desiccator is 2 μL·L -1 , sealed for 180 minutes, then open the dryer to ventilate for 10 minutes;

[0042] (3) Put the NO gas-treated fruit into the container, and inject the prepared preservative solution into it. The concentration of the preservative is: indole acetic acid (IAA) 0.5 μmol L -1 ; Gibberellin (GA 3 ) 250μmol·L -1 ; 6-benzyladenine (6-BA) 5 μmol L -1 ;

[0043] (4) The fruit must be immersed in the preservative solution for 20 minutes, and then ...

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Abstract

The invention belongs to the technical field of fresh keeping of fruits, and particularly relates to a special fresh keeping agent and fresh keeping method for syzygium samarangense fruits. The fresh keeping agent is prepared from the following ingredients of 0.5-20 [mu] mol.L<-1> heteroauxing, 50-250 [mu] mol.L<-1> gibberellin and 5-100 [mu] mol.L<-1> 6-benzyladenine. The fresh keeping method for the syzygium samarangense fruits by utilizing the fresh keeping agent comprises the following steps of (1) treating picked syzygium samarangense fruits with NO gas; and (2) soaking the syzygium samarangense fruits with the fresh keeping agent disclosed by the invention. The fresh keeping method disclosed by the invention can effectively prevent the picked syzygium samarangense fruits from being flocculent and soft, maintain the hardness of the fruits, prevent the fruits from rotting, prolong the fresh-eating period of the syzygium samarangense, and increase the commodity value of the syzygium samarangense fruits ; in addition, the operation steps are simple, and the fresh keeping agent and the fresh keeping method are easy to popularize and apply.

Description

technical field [0001] The invention belongs to the technical field of fruit preservation, and in particular relates to a special fresh-keeping agent and fresh-keeping method for lotus mist fruit. Background technique [0002] Lotus mist (Syzygium samarangenseMerr. et Perry) is also known as Yang apple, sweet mist, Java apple and so on. It is native to the Malay Peninsula, Indonesia and the Andaman Islands, and is widely cultivated in Malaysia, Indonesia and the Philippines. It is one of the important and rare fruit trees newly developed in tropical and subtropical regions in recent years. Lotus mist was introduced to Taiwan in the 17th century, and it was only cultivated sporadically in the early days. In the 1970s and 1980s, due to the improvement of varieties and cultivation techniques, the cultivation area increased significantly, and it became an important economic fruit tree in Taiwan. Taiwan's lotus mist cultivation area reached 10,502 hectares at the time (Taiwan A...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B7/154A23B7/148A23B7/04
CPCA23B7/04A23B7/148A23B7/154
Inventor 陈发河吴光斌
Owner JIMEI UNIV
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