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Fruit and vegetable preservative containing vine tea extract

The technology of a fruit and vegetable preservative and vine tea extract is applied in the processing and application fields of agricultural chemicals, which can solve the problems of human harm, high price, environmental pollution by chemical preservatives, etc., and achieve the effects of easy acquisition, wide sources and low cost.

Inactive Publication Date: 2015-03-04
TIANE COUNTY PINGCHANG ECOLOGICAL AGRI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a kind of vine tea extract which is friendly to the environment, non-toxic and harmless to the human body and does not affect the taste of fruits and vegetables in view of the disadvantages of chemical preservatives that pollute the environment, are harmful to the human body, affect the taste of fruits and vegetables, and have high prices. preservative

Method used

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  • Fruit and vegetable preservative containing vine tea extract
  • Fruit and vegetable preservative containing vine tea extract

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Example 1 : Indoor toxicity test of rattan tea extracts on 8 common agricultural plant pathogenic fungi

[0022] (1) According to 5kg of vine tea powder and 50kg of ethanol, then place it in a water bath at 55°C to extract 3 times, extract for 1 hour each time, filter, and combine the filtrates to obtain the crude extract of vine tea; then rotary evaporate the obtained vine tea crude extract , to obtain the vine tea extract.

[0023] (2) 1000, 500, 250, 125, 62.5μg·L -1 Mix 1 mL of rattan tea extract with 9 mL of melted PDA medium, pour it into a sterile petri dish while it is hot to make a medium plate with medicine. After the culture medium is solidified, put 1 bacteria cake (diameter: 4mm) on each medium plane, make the side with mycelium stick on the surface of the medium, use sterile water as a control, and repeat each treatment 3 times . After culturing for 72-96 hours, measure the colony growth diameter of the test bacteria with the cross method according to...

Embodiment 2

[0030] Get 10 parts of the vine tea extract obtained in Example 1, 1 part of ethanol, 0.5 parts of Tween-800, and 80 parts of water, mix and stir evenly to obtain a translucent preservative solution. Take 2kg of bananas and put them into the solution to soak for 5 minutes, take them out and drain them, and store them at 4°C. After 20 days, the good fruit rate is >95%, and the weight loss rate is <0.3%.

Embodiment 3

[0032] Take 20 parts of the vine tea extract obtained in Example 1, 4 parts of butanol, 1.0 parts of Tween-60, and 80 parts of water, and stir evenly to obtain a translucent preservative solution. Take 5 kg of longan and put it into the solution to soak for 5 minutes, take it out and drain it, and store it at 4°C. After 20 days, the good fruit rate is >94%, and the weight loss rate is <0.6%.

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Abstract

The invention discloses a fruit and vegetable preservative containing vine tea extract. The fruit and vegetable preservative is prepared from the following raw materials in parts by weight: 1-10 parts of vine tea extract, 1-5 parts of a solvent, 0.1-0.5 part of an auxiliary agent and 20-80 parts of water. The fruit and vegetable preservative disclosed by the invention can be used for preserving fruits, has the inhibition effect on a plurality of types of fruit bacteria, and especially has the remarkable effect on the preservation of litchis, longan and bananas. The fruit and vegetable preservative containing the vine tea extract provided by the invention has the advantages of high efficiency, low toxicity, and environmental friendliness and the bacteria do not easily have the resistance; and the fruit and vegetable preservative can be used as an ideal fruit preservative and can be used for prolonging the shelf life of the fruits and preventing diseases after the fruits are picked.

Description

technical field [0001] The invention belongs to the technical field of processing and application of agricultural chemicals, in particular to a fruit and vegetable fresh-keeping agent containing rattan tea extract. Background technique [0002] Vine tea, whose scientific name is Ampelopsis grossedentata (Hand-Mazz) W.T.Wang, is a wild woody deciduous vine of the family Vitaceae Michx (Ampelopsis), which belongs to a typical tea-like plant. , commonly known as mountain sweet tea, white tea, nectar tea, white haired monkey, white tea, etc., are mainly distributed in Hunan, Hubei, Yunnan, Guizhou, Guangdong, Guangxi, Fujian and other places in China. The original plants of rattan tea grow between 400 and 1300m above sea level, concentrated or scattered in mixed forests on hillsides, with large wild reserves, relatively clear distribution and growth rules, and are wild plant resources that can be directly used. [0003] Vine tea contains protein, dietary fiber, fat, carotene, v...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B7/153
Inventor 谭国轶张古权
Owner TIANE COUNTY PINGCHANG ECOLOGICAL AGRI
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