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Core-shell style cyclopropene preservative having dual effects of sterilization and preservation and preparation method thereof

A technology of cyclopropene and preservative, which is applied in the field of core-shell type cyclopropene preservative and its preparation, can solve the problems of weakening the preservation effect and the like, and achieve the effects of fast action speed, no secondary pollution and long maintenance time.

Active Publication Date: 2016-11-09
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, 1-methylcyclopropene is a very active reducing gas at normal temperature and pressure, which is easily oxidized and decomposed
However, general bactericidal preservatives have oxidizing components, and the use of 1-methylcyclopropene at the same time may weaken its fresh-keeping effect

Method used

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  • Core-shell style cyclopropene preservative having dual effects of sterilization and preservation and preparation method thereof
  • Core-shell style cyclopropene preservative having dual effects of sterilization and preservation and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] (1) Take 1 weight part of dry 1-methylcyclopropene stable inclusion complex, 10 parts by weight of excipient and 5 parts by weight of slow-release agent powder, mix in a three-dimensional motion mixer for 30min and pour out , to obtain mixture A, at a temperature of 5°C and an environment of relative humidity of 15%, the mixture A is compressed in a tablet machine to form a core layer tablet; wherein, the excipient adopts glucose; the slow-release agent adopts sodium bicarbonate ;

[0048] (2) Dissolve hydroxypropyl-β-cyclodextrin in absolute ethanol to make a high-concentration viscous solution of 0.5g / mL, gently and evenly mix the hydroxypropyl-β-cyclodextrin solution with a brush Apply ground to the surface of the core layer tablet, and dry in an oven at 50°C for 60 minutes to form a film, and form an isolation layer on the surface of the core layer tablet to obtain a tablet with an isolation layer;

[0049] (3) get the sodium chlorite of dry 20 weight parts, the an...

Embodiment 2

[0052] (1) Take dry 5 parts by weight of 1-methylcyclopropene stable inclusion complex, 20 parts by weight of excipients and 10 parts by weight of slow-release agent powder, mix in a three-dimensional motion mixer for 30min and pour out , to obtain the mixture A, at a temperature of 10°C and a relative humidity of 20%, the mixture A was compressed in a tablet machine to form a core layer tablet; wherein, the excipient used starch; the slow-release agent used sodium carbonate;

[0053] (2) Dissolve methyl-β-cyclodextrin in absolute ethanol to make a high-concentration viscous solution of 0.4g / mL, and apply the methyl-β-cyclodextrin solution gently and evenly with a brush on the surface of the tablet with the core layer, and dry in an oven at 40°C for 50 minutes to form a film, and form an isolation layer on the surface of the tablet with the core layer to obtain a tablet with an isolation layer;

[0054] (3) get dry sodium chlorite of 30 parts by weight, sodium chloride of 15 p...

Embodiment 3

[0060] (1) Take dry 10 parts by weight of 1-methylcyclopropene stable inclusion complex, 30 parts by weight of excipients and 1 part by weight of slow-release agent powder, mix in a three-dimensional motion mixer for 30min and pour out , to obtain mixture A, at a temperature of 15°C and a relative humidity of 50%, the mixture A is compressed into a tablet in a tablet machine to form a core layer tablet; wherein, the excipient adopts maltose; the slow-release agent adopts calcium hydroxide ;

[0061] (2) Dissolve amino-β-cyclodextrin in methanol to make a high-concentration viscous solution of 0.3g / mL, and apply the amino-β-cyclodextrin solution gently and evenly on the nuclear layer with a brush The surface of the tablet was dried in a 60°C oven for 40 minutes to form a film, and an isolation layer was formed on the surface of the core tablet to obtain a tablet with an isolation layer;

[0062] (3) Get dry sodium chlorite of 40 parts by weight, sodium chloride of 5 parts by w...

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Abstract

The present invention discloses a core-shell style cyclopropene preservative having dual effects of sterilization and preservation and a preparation method thereof. The core-shell style cyclopropene preservative comprises 45-50% by weight percentages of a core layer, 3-5% by weight percentages of a deliquescent isolated layer, and 45-50% by weight percentages of a shell layer. The isolated layer and the shell layer successively coats on the core layer from inside to outside. The core layer consists of the following raw materials in parts by weight: 1-70 parts of 1-methylcyclopropene stable inclusion complexes, 10-50 parts of an excipient, and 1-20 parts of a sustained-release agent. The shell layer comprises the following raw materials in parts by weight: 20-50 parts of chlorite, 5-50 parts of chlorine salt, 25-45 parts of an acidulant, and 10-20 parts of an effervescent agent. The core-layer materials and the shell-layer materials are respectively mixed, and then the mixed materials are successively subjected to core-layer tableting, isolated layer applying, shell-layer tableting, etc. to prepare the core-shell style cyclopropene preservative having the dual effects of sterilization and preservation. Besides, the cores and shells are effectively separated and free of mutual influences.

Description

【Technical field】 [0001] The invention belongs to the field of fresh-keeping of agricultural products, fruits and vegetables, and in particular relates to a core-shell type cyclopropylene fresh-keeping agent with dual effects of sterilization and fresh-keeping and a preparation method thereof. 【Background technique】 [0002] Cyclopropene preservatives for fruits and vegetables, mainly 1-methylcyclopropene, can effectively inhibit the ripening effect of ethylene on fruits and vegetables after picking, and greatly extend the fresh-keeping period of fruits and vegetables after picking. At present, studies have shown that 1-methylcyclopropene can keep cut flowers bright and prolong the life of cut flowers. At the same time, treating apples, kiwis, persimmons, etc. with it can extend the post-harvest freshness period by more than 1 times. But 1-methylcyclopropene is a gas at normal temperature and pressure, and it also needs to be used in a gaseous form during the preservation of...

Claims

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Application Information

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IPC IPC(8): A23B7/154A23B7/157
CPCA23B7/154A23B7/157
Inventor 冯江涛孙娜娜徐浩延卫
Owner XI AN JIAOTONG UNIV
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