Bentonite-based mango preservative and preparation method of the bentonite-based mango preservative

A technology of bentonite and preservative, applied in the field of fruit preservative and its preparation, can solve problems such as unreported research, small specific surface area of ​​mineral particles, etc., and achieve the effects of simple preparation process, preventing the accumulation of sugar, and delaying the process of after-ripening

Inactive Publication Date: 2011-09-14
GUANGXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Bentonite has good water absorption, cohesiveness and adsorption, and has small mineral particles, large specific surface area, stable chemical properties, and non-toxicity. It is known as "universal" clay and is widely used in petroleum exploration, chemical coatings, compound fertilizers, Rubber, plastics, papermaking, water purification, moisture absorbing agents, pesticides and other fields, but research on fruit preservation has not been reported

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Preparation of fresh-keeping solution: add 5 g of purified bentonite to 300 mL of distilled water, and stir at a high speed of 1000 r / min for 1 hour to fully disperse the bentonite to form a suspension; stir the above suspension at a low speed of 600 r / min, and stir under Add 0.5 g of citric acid; stir the above solution at a high speed of 1000 r / min for 1 hour to prepare a bentonite-based mango preservation solution.

[0017] Preservation by coating film: select fresh-picked red ivory mangoes with uniform size, no mechanical damage, no pests and diseases, and basically the same maturity and color. Store at room temperature.

[0018] Experimental results: using the fresh-keeping agent of the present invention to coat mangoes for fresh-keeping, the red ivory mangoes can be delayed for more than 7 days to rot and ripen at room temperature.

Embodiment 2

[0020] Prepare fresh-keeping solution: Add 10 g of purified bentonite to 300 mL of distilled water, stir at 1500 r / min for 1 hour to fully disperse the bentonite to form a suspension; stir the above suspension at 800 r / min at low speed, add 0.7 g of lemon under stirring Acid; Stir the above solution at a high speed of 1500r / min for 1 hour to make a bentonite-based mango preservation solution.

[0021] Coating fresh-keeping: choose the fresh-picked Guiqi mangoes with uniform size, no mechanical damage, no pests and diseases, and the maturity and color are basically the same. Rinse the fruit surface with tap water first, and after drying, use the antistaling agent of the present invention to coat the film. Air dry and store at room temperature.

[0022] Experimental results: Using this preservative to preserve freshness of mangoes by coating film can delay the rot and ripeness of Guiqi mangoes for more than 3 days at room temperature.

Embodiment 3

[0024] Prepare fresh-keeping solution: add 20 g of purified bentonite to 150 mL of distilled water, stir at 1500 r / min for 3 hours to fully disperse the bentonite to form a suspension; stir the above suspension at a low speed of 600 r / min, add 1.0 g citric acid; stir the above solution at a high speed of 1500r / min for 3 hours to make a bentonite-based mango preservation solution.

[0025] Preservation by coating film: Select fresh-picked mangoes with uniform size, no mechanical damage, no pests and diseases, and basically the same maturity and color. Rinse the fruit surface with tap water first, and after drying, apply the film with the above-mentioned preservatives and let it dry naturally. Store at room temperature.

[0026] Experimental results: Using this preservative to preserve freshness of mangoes by coating film can delay the rot and ripeness of Jinsui mangoes for more than 3 days at room temperature.

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PUM

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Abstract

The invention discloses a preparation method of a bentonite-based mango preservative. The components and the weight ratio of the materials are as follows: bentonite:citric acid:distilled water equals to 5-20:0.5-1.0:150-300. The bentonite-based mango preservative is used for filmed preservation of mangos and can remarkably restrain the peels of the mangos from turning yellow and the fruits from decaying, reduce the loss of water, restrain the propagation of micro-organisms and maintain high hardness and Vc content of the fruits; and simultaneously, a bentonite film delays the respiratory peak, and prevents the accumulation of sugar and the decomposition of acid, thus delaying the after-ripening process of the mangos. The bentonite-based mango preservative is simple in preparation technology, low in production cost and non-toxic and safe and conforms to the environment-friendly concept.

Description

technical field [0001] The invention relates to a fruit fresh-keeping agent and a preparation method thereof, in particular to a bentonite-based mango fresh-keeping agent and a preparation method thereof. Background technique [0002] Mango is a typical tropical fruit, known as the "King of Tropical Fruits", and is currently the fifth most produced fruit in the world. However, mangoes are climacteric and ethylene-sensitive fruits. When they mature, they coincide with high temperature and high humidity seasons. At present, the fresh-keeping methods of fruits and vegetables mainly include modified atmosphere method, cold storage, drug treatment and film-coating method, among which the film-coated fresh-keeping method has the advantages of simplicity, low cost, etc., and is more convenient to be applied in the preservation of agricultural and sideline products. [0003] Citric acid is an important organic acid, which can be used as a food antiseptic and fungicide, safe and eff...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B7/16
Inventor 刘琨李向伟王雪玲
Owner GUANGXI UNIV
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