A kind of biological preservative and its preparation method and application in loquat preservation

The technology of a preservative and loquat is applied in the field of biological preservatives and the preparation thereof, which can solve the problems of obvious side effects and environmental problems, insufficient use of plant preservation, complicated preparation of essential oils, etc., and achieves the advantages of reducing spoilage, outstanding preservation effect, and avoiding side effects. Effect

Active Publication Date: 2020-12-08
SUZHOU POLYTECHNIC INST OF AGRI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is mainly because although lemongrass has a certain antibacterial effect, it is far from enough to be used as a plant fresh-keeping, and the use of essential oil is to maximize its effect
However, the side effects of chemical reagents and environmental problems are obvious, and the preparation of essential oils is complicated and inconvenient to use, especially for fruit processing, essential oils are not suitable

Method used

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  • A kind of biological preservative and its preparation method and application in loquat preservation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] 1. Select 45 parts of high-quality lemongrass, 35 parts of Italian Helichrysum and 20 parts of sweet basil, remove sundries and foreign objects, rinse with clean water, dry in a dark place at room temperature, put lemongrass, Italian Helichrysum and sweet basil Grind together to 80 mesh, mix the pulverized mixture with distilled water at a mass ratio of 1:8, add it to the mixer, add 3% sodium chloride by weight of the pulverized mixture, and stir at 45°C for 30 minutes for pre-extraction. Transfer the pre-extraction to a pot, boil and extract for 45 minutes, filter, collect the filtrate, and obtain the extract;

[0032] 2. Add 68 parts of the extract obtained in step 1, add 18 parts of honey and 14 parts of sterilized distilled water to make up, stir thoroughly for 2 minutes to prepare a preservative, and store it in a refrigerator at 4-5°C for later use.

[0033] 3. The fresh-keeping effect of biological preservatives on loquat

[0034] Soak the loquat in the preserva...

Embodiment 2

[0039] 1. Select 40 parts of high-quality lemongrass, 40 parts of Italian Helichrysum and 20 parts of sweet basil, remove sundries and foreign objects, rinse with clean water, and dry at room temperature in a dark place. Mix lemongrass, Italian Helichrysum and sweet basil Grind together to 50 mesh, mix the crushed mixture with distilled water at a mass ratio of 1:5, add it to the mixer, add 3.5% sodium chloride by weight of the crushed mixture, and stir at 45°C for 30 minutes for pre-extraction. Transfer the pre-extraction to a pot, boil and extract for 45 minutes, filter, collect the filtrate, and obtain the extract;

[0040] 2. Add 70 parts of the extract obtained in step 1, add 20 parts of honey, and 10 parts of sterilized distilled water to make up, fully stir for 2 minutes to prepare a preservative, and store it in a refrigerator at 4-5°C for later use.

[0041]3. The fresh-keeping effect of biological preservatives on loquat

[0042] Soak the loquat in the preservative ...

Embodiment 3

[0044] 1. Select 50 parts of high-quality lemongrass, 40 parts of Italian Helichrysum and 10 parts of sweet basil, remove sundries and foreign objects, rinse with clean water, and dry at room temperature in a dark place. Mix lemongrass, Italian Helichrysum and sweet basil Grind together to 100 mesh, mix the pulverized mixture with distilled water at a mass ratio of 1:10, add it to the mixer, add 3.5% sodium chloride by weight of the pulverized mixture, and stir at 45°C for 30 minutes for pre-extraction. Transfer the pre-extraction to a pot, boil and extract for 45 minutes, filter, collect the filtrate, and obtain the extract;

[0045] 2. Add 70 parts of the extract obtained in step 1, add 15 parts of honey and 15 parts of sterilized distilled water to make up, stir thoroughly for 2 minutes to prepare a preservative, and store it in a refrigerator at 4-5°C for later use.

[0046] 3. The fresh-keeping effect of biological preservatives on loquat

[0047] Soak the loquat in the ...

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PUM

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Abstract

The invention discloses a biological fresh-keeping agent, its preparation method and its application in loquat fresh-keeping; both lemongrass and Italian helichrysum have good antibacterial activity, and combined with sweet basil, in addition to anti-oxidation and antibacterial on the fruit surface, More importantly, it meets the specific requirements of fruit preservation and can effectively lock water. In addition to the certain antibacterial effect of honey, it can also combine the components of the extract such as alcohol and ester to make the preservative easier to form a film on the surface of loquat. The preparation method of the invention is simple, natural, safe and non-toxic, and has good sterilization and freshness preservation effect when applied to loquats, and avoids the influence of traditional physical and chemical sterilization on fruit nutrition and quality.

Description

technical field [0001] The invention belongs to the technical field of antistaling agents, and in particular relates to a biological antistaling agent, a preparation method thereof and an application in loquat preservation. Background technique [0002] Loquat is a famous and precious specialty fruit in southern my country. It is rich in nutrition and sweet in taste. Loquat is a seasonal fruit that is easily damaged by machinery and microorganisms. It is perishable at room temperature and loses its edible value. development of loquat. The modified atmosphere preservation and low-temperature storage in the existing batch storage and preservation technology have better effects, but require a large investment in equipment; the cost of chemical preservatives is lower, but the effect is not good, and toxic substances are likely to remain, which poses a threat to human health. . However, biological preservatives are natural, safe, low-cost, and effective. Therefore, the applicati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23B7/16
CPCA23B7/16A23V2002/00A23V2250/21A23V2200/10A23V2250/1582A23V2250/1614A23V2200/02A23V2200/22A23V2300/14
Inventor 高岳司文会余雁徐良阙小峰李小平
Owner SUZHOU POLYTECHNIC INST OF AGRI
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