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Natural food preservative for fruit and preparation method thereof

A technology of natural food and preservatives, applied in the field of natural food preservatives and natural food preservatives for fruits, can solve problems such as poisoning health, pollute the environment, etc., and achieve the promotion of plant resources, convenient circulation, and low cost. Effect

Inactive Publication Date: 2010-06-23
卢锦荣
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the fresh-keeping packages used are chemical preservatives and plastic film bags, but they have defects such as poisoning health and polluting the environment.

Method used

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  • Natural food preservative for fruit and preparation method thereof
  • Natural food preservative for fruit and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Embodiment one: the preparation of antistaling agent 1

[0016] (1) take by weighing fresh aloe 3Kg and fresh pine needle 0.7Kg respectively, wash, mix after chopping;

[0017] (2) Put the above mixture into a multifunctional extraction tank, add 18.5Kg of water, adjust the pressure of the extraction tank to 2Mpa, and the temperature to 30°C, extract twice for 2 hours each time, and combine the extracts.

[0018] (3) The extract was left to settle for 24 hours, and the supernatant was taken from top to bottom and filtered through a multilayer screen of 60 mesh, 100 mesh, 200 mesh and 400 mesh.

[0019] (4) Put the filtrate into a vacuum concentration tank and concentrate at 4°C to obtain an extract.

[0020] (5) The extract is dried by a drying tower, and after drying, it is pulverized to 150 mesh by a universal pulverizer to obtain 1.21Kg powder, which is preservative 1.

Embodiment 2

[0021] Embodiment two: the preparation of antistaling agent 2

[0022] (1) take by weighing fresh aloe 5.0Kg and fresh pine needle 1.3Kg respectively, wash, mix after chopping;

[0023] (2) Put the above mixture into a multifunctional extraction tank, add 31.5Kg of water, adjust the pressure of the extraction tank to 2MPa, and the temperature to 35°C, extract twice for 2 hours each time, and combine the extracts.

[0024] (3) The extract was left to settle for 24 hours, and the supernatant was taken from top to bottom and filtered through a multilayer screen of 60 mesh, 100 mesh, 200 mesh and 400 mesh.

[0025] (4) Put the filtrate into a vacuum concentration tank and concentrate at 4°C to obtain an extract.

[0026] (5) The extract is dried by a drying tower, and after drying, it is pulverized to 150 mesh by a universal pulverizer to obtain 1.91Kg powder, which is preservative 2.

Embodiment 3

[0027] Embodiment three: the preparation of antistaling agent 3

[0028] (1) Take by weighing fresh aloe 4.0Kg and fresh pine needle 1.0Kg respectively, wash, mix after chopping;

[0029] (2) Put the above mixture into a multifunctional extraction tank, add 25Kg of water, adjust the pressure of the extraction tank to 2MPa, and the temperature to 38°C, extract twice for 2 hours each time, and combine the extracts.

[0030] (3) The extract was left to settle for 24 hours, and the supernatant was taken from top to bottom and filtered through a multilayer screen of 60 mesh, 100 mesh, 200 mesh and 400 mesh.

[0031] (4) Put the filtrate into a vacuum concentration tank and concentrate at 4°C to obtain an extract.

[0032] (5) The extract is dried by a drying tower, and after drying, it is pulverized to 150 mesh by a universal pulverizer to obtain 1.52Kg powder, which is preservative 3.

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Abstract

The invention relates to a natural food preservative, in particular to a natural food preservative for fruits. In the preparation method of the preservative, the raw materials include aloe and pine needles with the mass ratio being (30-50): (7-13). The preservative is applied in the experiment on fruit preservation, and the results show that the preservative has significant preservation effect and realizes the long-term storage of the fruits. Moreover, the preservative is prepared through extraction of purely natural plants, the preserved fruits can be eaten safely and has no toxic residue but high quality, and the preservation period is long, thereby facilitating the transportation and sale of the fruits, reducing the preservation cost and producing greater economic benefits.

Description

【Technical field】 [0001] The invention relates to a natural food preservation agent, in particular to a natural food preservation agent for fruits, belonging to the field of food additives. 【Background technique】 [0002] Due to seasonal and regional influences, it is generally difficult to supply fruits in various places for a long period of time. The preservation of fruits has attracted the attention of various countries. At present, most of the fresh-keeping packages used are chemical preservatives and plastic film bags, but they have defects such as poisoning health and polluting the environment. [0003] Therefore, it is of great significance to develop efficient, broad-spectrum, safe, stable and cheap new fruit preservatives. Internationally, fruit preservatives are developing towards a natural and environmentally friendly trend. my country has a vast territory and abundant plant resources. Therefore, finding and extracting natural food additives from plants has bec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B7/153A23L3/3472
Inventor 卢锦荣
Owner 卢锦荣
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