Preserving agent for litchi and preparation method of the preserving agent for litchi

A technology of preservative and lychee, which is applied in the field of lychee preservative and its preparation, can solve the problems of poor fresh-keeping effect, high use cost, and high level of technology, and achieve the effects of reducing respiratory consumption, prolonging storage life, and inhibiting reproduction

Inactive Publication Date: 2015-12-23
周建卿
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above methods have a certain effect on fresh-keeping lychees, but they all have the characteristics of potential harm to the human body, poor fresh-keeping effect, complex operation / high process level, or high cost of use, which limits their large-scale use in production.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) Preservative formulation

[0028] Preservative formula: Chinese medicine extract 0.5g, sucrose ester 0.2g, sodium chloride 0.5g, konjac glucomannan 0.5g, nano TiO 2 0.2g, water 98.1g; nano-TiO 2 The particle size is 5-50nm.

[0029] The formula of Chinese medicine extract: pumpkin seeds 10g, hibiscus bark 6g, gentian 6g, aloe vera 5g, acacia 5g, and catkin 5g.

[0030] (2) Preparation of Chinese medicine extract

[0031] Weigh pumpkin seeds, hibiscus bark, gentian, aloe vera, acacia, and catkin according to the weight ratio, crush them through a 60-mesh sieve, add 45% vol ethanol solution that is 6 times the total weight of Chinese medicinal materials, soak for 1 hour, and use ultrasonic Extraction, the extraction temperature is 45°C, the extraction time is 20min, the filtrate is collected by suction filtration, and the filtrate is concentrated to a relative density of 1.05, which is the Chinese medicine extract.

[0032] (3) Mixing of preservatives

[0033] (1...

Embodiment 2

[0038] (1) Preservative formulation

[0039] Preservative formula: 1.2g Chinese medicine extract, 0.5g sucrose ester, 0.3g sodium chloride, 0.8g konjac glucomannan, nano-TiO 2 0.3g, water 96.9g; nano-TiO 2 The particle size is 50-100nm.

[0040] The formula of traditional Chinese medicine extract: pumpkin seeds 5g, hibiscus bark 3g, gentian 3g, aloe vera 2g, acacia 2g, and catkin 2g.

[0041] (2) Preparation of Chinese medicine extract

[0042] Weigh pumpkin seeds, hibiscus bark, gentian, aloe vera, acacia, and catkin according to the weight ratio, crush them through a 120-mesh sieve, add 55% vol ethanol solution that is 8 times the total weight of Chinese medicinal materials, soak for 2 hours, and use ultrasonic Extraction, the extraction temperature is 55°C, the extraction time is 35min, the filtrate is collected by suction filtration, and the filtrate is concentrated to a relative density of 1.15, which is the Chinese medicine extract.

[0043] (3) Mixing of preservativ...

Embodiment 3

[0049] (1) Preservative formulation

[0050] Preservative formula: 1.0g Chinese medicine extract, 0.3g sucrose ester, 0.4g sodium chloride, 0.6g konjac glucomannan, nano-TiO 2 0.2g, water 97.3g; nano-TiO 2 The particle size is 5-50nm.

[0051] The formula of traditional Chinese medicine extract: pumpkin seeds 9g, hibiscus bark 5g, gentian 4g, aloe vera 4g, acacia 4g, turnip 3g.

[0052] (2) Preparation of Chinese medicine extract

[0053] Weigh pumpkin seeds, hibiscus bark, gentian, aloe vera, acacia, and catkin according to weight ratio, crush them through a 100-mesh sieve, add 50% vol ethanol solution that is 7 times the total weight of Chinese medicinal materials, soak for 1 hour, and use ultrasonic Extraction, the extraction temperature is 50°C, the extraction time is 30min, the filtrate is collected by suction filtration, and the filtrate is concentrated to a relative density of 1.10, which is the Chinese medicine extract.

[0054] (3) Mixing of preservatives

[0055...

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PUM

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Abstract

The invention provides a preserving agent for litchi and a preparation method of the preserving agent for litchi and relates to the technical field of vegetable and fruit preservation. The preserving agent comprises the following raw materials in percentages by weight: 0.5-1.2% of traditional Chinese medicine extract solution, 0.2-0.5% of sucrose ester, 0.3-0.5% of sodium chloride, 0.5-0.8% of konjak glucomannan, 0.2-0.3% of nanometer TiO2 and water accounting for all the rest percentages; the traditional Chinese medicine extract solution comprises the following raw materials in parts by weight: 5-10 parts of pumpkin seeds, 3-6 parts of pseudolaricis, 3-6 parts of radix gentianae, 2-5 parts of aloes, 2-5 parts of Chinese honey locusts and 2-5 parts of ulmus macrocarpa hance. The Chinese herbal medicines are used as raw materials of the preserving agent; the Chinese herbal medicines are used as antimicrobial substances, the konjak glucomannan is used as film-forming substance, the sucrose ester is used as emulsifier, the sodium chloride is used for sterilizing and color-protecting and the nanometer material is used as excipient, so that the preserving agent for litchi is obtained. The preserving agent for litchi is capable of preventing litchi from browning and rotting, so that commodity rate of the litchi is raised.

Description

【Technical field】 [0001] The invention relates to the technical field of fresh-keeping of fruits and vegetables, in particular to a lychee fresh-keeping agent and a preparation method thereof. 【Background technique】 [0002] Litchi (Litchichinensis Sonn.) belongs to Sapindaceae (Sapindaceae), is a famous fruit originating in southern my country, and is one of the most competitive fruits in the international market. Because litchi fruit is harvested in high temperature season in midsummer, and its special structure, it is very easy to brown and rot after harvest. Especially at normal temperature, it will brown and rot in 2-3 days, losing its commodity value. [0003] At present, the method for litchi rot control mainly contains: 1) chemical preservative treatment. The preservatives used for lychee preservation mainly include carbendazim, thiophanate, teketol, imazalil, Shibaogong, Shibaoke, etc. 2) Sulfur dioxide treatment. It mainly includes fumigation of litchi with sul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B7/154A23B7/157
Inventor 周建卿
Owner 周建卿
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