Antiseptic and fresh keeping method for oranges

A fresh-keeping method and citrus technology, applied in the direction of fruit and vegetable preservation, protection of fruits/vegetables with a coating protective layer, application, etc., can solve the problems of plant essential oils in citrus, inhibit microbial proliferation, inhibit germination and growth, and improve freshness effect of effect

Active Publication Date: 2012-07-04
NINGBO UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there are no relevant research reports on the application of plant essential oils in the preservation and preservation of citrus to improve the shelf life of citrus at home and abroad.

Method used

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  • Antiseptic and fresh keeping method for oranges
  • Antiseptic and fresh keeping method for oranges
  • Antiseptic and fresh keeping method for oranges

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specific Embodiment

[0023] The present invention is an antiseptic and fresh-keeping method for citrus. The graded and selected tangerine fruit is soaked and cleaned in ordinary clear water and sprayed with high-temperature hot water at 60°C for 20 seconds. The height of the hot water from the surface of the fruit is 0.5 meters, water pressure 1.5 atmospheres; after the fruit is dried, immerse in the chitosan solution containing plant essential oil for coating treatment for 3 minutes, and the chitosan solution is configured into a basic film-forming liquid with a mass percentage concentration of 2%. (Using water containing 0.6% glacial acetic acid as a solvent and chitosan as a solute to prepare a chitosan solution with a concentration of 2% by mass), the amount of plant essential oil added to the chitosan solution is 2ml / L, the plant essential oil is composed of clove essential oil accounting for 60%, citrus essential oil accounting for 40%; the fruit is dried and packed in an LDPE fresh-keeping ...

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PUM

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Abstract

The invention discloses an antiseptic and fresh keeping method for oranges. The method is characterized in that orange fruit is subjected to hot water spraying treatment on the basis of clean water soaking cleaning, then, the orange fruit is soaked into chitosan compound solution containing essential oil for carrying out film coating treatment, next, the orange fruit is packed by a fresh keeping bag containing 1.5 to 2.5 weight percent of nanometer titanium dioxide and 0.8 to 1.2 weight percent of inorganic nanometer antibacterial agents, and the hot water spraying treatment has the conditions that the water temperature is 60 to 65 DEG C, the height from the fruit surface is 0.4 to 0.6meter, the water pressure is 1.5 to 2.0 atmospheric pressure, and the spraying time is 15 to 20 seconds; and the addition quantity of essential oil is 1.8 to 2.2ml / L, volatile essential oil in the essential oil accounts for 50 to 60 percent, and the orange essential oil accounts for 50 to 40 percent. Themethod has the advantages that the hardness, the soluble solids, the titratable acid and the vitamin C content of the orange fruit can be effectively maintained, and the weight loss ratio ascending and the fungus decay occurrence after the orange picking are inhibited, so the preservation period is effectively prolonged.

Description

technical field [0001] The invention relates to a fruit and vegetable storage and fresh-keeping technology, in particular to an anti-corrosion and fresh-keeping method for citrus. Background technique [0002] Citrus is a Rutaceae Citrus subfamily citrus plant with many varieties. It is the fruit with the largest output in the world and one of the main fruits in my country. In addition to the decline in natural aging quality of citrus after harvest, infectious diseases are prone to occur during storage and transportation, especially the rot caused by pathogenic fungi of the genus Penicillium is the most serious, resulting in a large amount of economic losses. For the fresh-keeping methods of citrus, it is mainly to control fungal diseases, involving chemical, physical and biological anti-corrosion and fresh-keeping methods. The chemical method of citrus antisepsis mainly adopts artificially synthesized fungicides, thiophanate and carbendazim of p-benzimidazole, etc.; the ph...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B7/005A23B7/16A23B7/154
Inventor 邵兴锋王鸿飞
Owner NINGBO UNIV
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