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Method of pure-natural fresh keeping of lemon

A pure natural, lemon technology, applied in the direction of preservation of food ingredients containing natural extracts, food ingredients as anti-microbial, protection of fruits/vegetables with a protective layer, etc., can solve problems such as human health hazards, and achieve freshness preservation , High safety, the effect of prolonging the storage and preservation period

Inactive Publication Date: 2017-04-19
INST OF TROPICAL & SUBTROPICAL CASH CROP YUNNAN ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the effect of chemical preservation is better, but the harmful residues caused potential harm to human health

Method used

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  • Method of pure-natural fresh keeping of lemon
  • Method of pure-natural fresh keeping of lemon

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] For lemons with a maturity of 80% to 90% without pests and diseases and no damage, use the double cutting method (that is, cut off the fruit and the fruit stem together in the first cut, and cut the fruit handle to the same level as the fruit shoulder in the second cut. The cut is flat and smooth) after picking, put it in the field for 2 hours, and soak the fruit in the fresh-keeping solution for 5 minutes within 24 hours after picking. 20wt% and prepared; after soaking the fruit, dry it, and then wrap each lemon with a polyethylene plastic wrap with a thickness of 0.02mm, and store it indoors.

Embodiment 2

[0022] Pick lemons with a maturity of 80% to 90% that are free from diseases, insect pests and damage, and put them in the field for 4 hours after picking them with double shearing method, and soak them in fresh-keeping liquid for 8 minutes within 8 hours after harvesting. Lemons are squeezed and diluted 500 times, and then added sucrose until the concentration is 30wt%. After soaking the fruit, they are dried, and then each lemon is wrapped with a polyethylene plastic wrap and stored indoors.

Embodiment 3

[0024] Pick lemons with a maturity of 80% to 90% that are free from diseases, insect pests and damage, and put them in the field for 10 hours after picking them with double shearing method, and soak the fruit for 10 minutes in the fresh-keeping solution within 20 hours after picking. Lemons are squeezed and diluted 1000 times, and then added sucrose to a concentration of 10wt%; after soaking the fruit, they are dried, and then each lemon is wrapped with a polyethylene plastic wrap with a thickness of 0.02mm, and stored indoors.

[0025] The method of pure natural fresh-keeping lemon of the present invention carries out effect verification by following test:

[0026] Control group: adopt the method of embodiment 1, only replace the fresh-keeping solution with the same amount of clear water.

[0027] (1) Changes in the color difference of lemon peel between the embodiment and the control group

[0028]

[0029] Note: Different lowercase letters after the data in the same col...

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Abstract

The invention discloses a method of pure-natural fresh keeping of lemon. The method includes the following steps: picking healthy and matured lemons in a complex shear manner and allowing the lemons to stand in field for several hours; 1) soaking the lemons in a preservation solution, which is prepared by squeezing fresh lemon and diluting the lemon juice by 300-1000 times, and adding sucrose until the concentration is 10-30 wt%; 2) air-drying the lemons, and coating the lemons individually by polyethylene fresh keeping film and storing the lemons indoor. The fresh keeping method is safe, simple, practical and low-cost, has good fresh keeping effect and can effectively delay senility of the lemons and maintain the quality of the lemon, and is suitable for promotion and application. The fresh keeping method can greatly alleviate color change, water loss and internal quality change of the lemons during storage, maintains the freshness of the lemons and prolongs the shelf life and fresh-keeping time of the lemons as most as possible.

Description

technical field [0001] The invention relates to a method for purely natural preservation of lemons, which belongs to the technical field of fruit preservation. Background technique [0002] lemon( Citrus limon (L.) Burm.f ) of Rutaceae ( Rutaceae ) citrus ( Citrus ) citron ( Citrus medica L. ) class of evergreen fruit trees, which have been cultivated for more than 2,500 years. Lemons not only contain a large amount of essential amino acids, proteins, vitamins, mineral elements and other nutrients, but also rich in citric acid, eriocitrin, and orange peel. Glycosides, diosmin, d-limonene and other functional ingredients have the functions of preventing obesity, diabetes, hyperlipidemia, hyperuricemia, cardiovascular diseases, etc., and are widely used in daily life, chemical industry, and food industry. [0003] Lemons occupy the third place in the world's citrus planting industry; there are major lemon producing countries such as Mexico, China, Argentina, Brazil, Spa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B7/16
CPCA23B7/16A23V2002/00A23V2200/10A23V2200/22A23V2250/21A23V2250/628
Inventor 周先艳岳建强朱春华高俊燕李进学沈正松多建祖赖新朴杜玉霞杨建东郭俊
Owner INST OF TROPICAL & SUBTROPICAL CASH CROP YUNNAN ACAD OF AGRI SCI
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