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Special preservative and preservation method for lotus mist fruit

A fresh-keeping method and technology of a fresh-keeping agent, which are applied in the directions of fruit and vegetable fresh-keeping, application, food preservation, etc., can solve the problems of inability to effectively prevent the flocculent softness of lotus mist fruit, unclear mechanism and regulation mechanism, and influence on fruit quality and flavor, etc. Achieve the effect of delaying the decline of VC content and soluble solid content, easy to popularize and use, and retaining nutrients

Inactive Publication Date: 2019-12-06
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 CN 103493880 A 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 preservative and preservation method for lotus mist fruit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (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;

[0025] (2) Put the fruit in a 30 L vacuum desiccator, use a pure nitrogen cylinder to pass nitrogen gas (99.9%) into the desiccator for 20 minutes to discharge the oxygen in the desiccator, take 450 μL of NO gas, and inject it 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;

[0026] (3) Put the NO gas-treated fruit into the container, and inject the prepared preservative solution into it. The concentration of the preservative is: naphthaleneacetic acid (NAA) 15 μmol L -1 , gibberellin (GA 3 ) 100 μmol L -1 , N-(2-chloro-4-pyridyl)-N’-phenylurea (CPPU) 50 μmol L -1 ;

[0027] (4) After immersing the fruit in the preservative solution for 8 minutes, put it in the air to ventilate and d...

Embodiment 2

[0033] (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;

[0034] (2) Put the fruit in a 30 L vacuum desiccator, pass nitrogen gas (99.9%) into the desiccator with a pure nitrogen cylinder for 5 minutes to discharge the oxygen in the desiccator, and take it from the nitric oxide (NO) gas cylinder. Inject 3000 μL of NO gas with a purity of 99.9% 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;

[0035] (3) Put the NO gas-treated fruit into the container, and inject the prepared preservative solution into it. The concentration of the preservative is: naphthaleneacetic acid (NAA) 30 μmol L -1 , gibberellin (GA 3 ) 30 μmol L -1 , N-(2-chloro-4-pyridyl)-N’-phenylurea (CPPU) 150 μmol L -1 ;

[0036](4) The fruit must be immersed in the preservative ...

Embodiment 3

[0041] (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;

[0042] (2) Put the fruit in a 30 L vacuum desiccator, use a pure nitrogen cylinder to blow nitrogen (99.9%) into the desiccator for 35 minutes to discharge the oxygen in the desiccator, and take it from the nitric oxide (NO) gas cylinder. Inject 60 μL of NO gas with a purity of 99.9% 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;

[0043] (3) Put the NO gas-treated fruit into the container, and inject the prepared preservative solution into it. The concentration of the preservative is: naphthaleneacetic acid (NAA) 0.5 μmol L -1 , gibberellin (GA 3 ) 300 μmol L -1 , N-(2-chloro-4-pyridyl)-N’-phenylurea (CPPU) 10 μmol L -1 ;

[0044] (4) The fruit must be immersed in the preservative so...

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Abstract

The invention belongs to the technical field of fruit preservation, in particular relates to a preservative special for syzygium samarangense fruits and a preservation method. The preservative is prepared from the following components of 0.5 to 30 mu mol.L<-1> of naphthylacetic acid, 30 to 300 mu mol.L<-1> of gibberellin and 10 to 150 mu mol.L<-1> of N-(2-chlorine-4-pyridyl)-N(minute)-phenylurea. The preservation method for preserving the syzygium samarangense fruits by utilizing the preservative comprises the following steps of (1) treating harvested syzygium samarangense fruits by adopting NO gas; (2) soaking the syzygium samarangense fruits by using the preservative. According to the preservation method provided by the invention, the harvested syzygium samarangense fruits can be effectively prevented from being floccular and soft, the hardness of the fruits is kept, the fruits are prevented from decaying, the fresh stage for eating of the syzygium samarangense fruits is prolonged, and the commercial value of the syzygium samarangense fruits is increased; the operation steps are simple, and popularization and application are easy.

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] wax apple( Syzygium samarangense Merr. et Perry) is also known as foreign apple, sweet mist, Java apple, etc. 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 Patents(China)
IPC IPC(8): A23B7/154A23B7/04
CPCA23B7/04A23B7/154
Inventor 陈发河吴光斌
Owner JIMEI UNIV
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