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A plant essential oil composite chitosan citrus coating preservative and its preparation

A technology of compounding chitosan citrus and film-coating preservative is applied in the directions of preservation of fruits and vegetables, preservation of fruits/vegetables with sugar, protection of fruits/vegetables with a protective layer, etc., so as to prevent quality, low cost and prevent fruit senescence. Effect

Active Publication Date: 2020-12-01
ZHEJIANG CITRUS RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, there is no report on the research of citrus essential oil and tea tree essential oil composite chitosan coating on the preservation of fruits and vegetables. Post-corrosion preservation provides a natural, efficient and safe method

Method used

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  • A plant essential oil composite chitosan citrus coating preservative and its preparation

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Effect test

Embodiment 1

[0018] The preparation method of Chinese toon-water chestnut skin composite extract is as follows: mix Chinese toon and water chestnut skin according to the mass ratio of 1:1, put them into an extraction tank, add water to immerse, heat to 95°C, extract for 1.5 hours, and filter to obtain the extract 1 ; Submerge the filter residue after the first extraction with water, heat to 85°C, extract for 2.5 hours, and filter to obtain the extract 2; add water to the filter residue after the second extraction, heat to 75°C, extract for 3.5 hours, and filter to obtain the extract 3. Combine extract 1, extract 2 and extract 3 to obtain Chinese toon-water chestnut skin composite extract.

[0019] A plant essential oil compound chitosan citrus coating preservative, the raw materials of which are: compound plant essential oil (mixed with ponkan essential oil and tea tree essential oil at a volume ratio of 1:1) 0.6% (v / v), chitosan Sugar 1.8wt%, Chinese toon-water chestnut skin compound extr...

Embodiment 2

[0021] The preparation method of Chinese toon-water chestnut skin composite extract is as follows: mix Chinese toon and water chestnut skin according to the mass ratio of 1:2, put them into an extraction tank, add water to immerse, heat to 100°C, extract for 1 hour, and filter to obtain the extract 1 ; soak the filter residue after the first extraction with water, heat to 80°C, extract for 3 hours, and filter to obtain the extract 2; add water to the filter residue after the second extraction, heat to 70°C, extract for 4 hours, and filter to obtain the extract 3. Combine extract 1, extract 2 and extract 3 to obtain Chinese toon-water chestnut skin composite extract.

[0022] A plant essential oil compound chitosan citrus coating preservative, the raw materials of which are: compound plant essential oil (mixed with ponkan essential oil and tea tree essential oil at a volume ratio of 1:1) 1.2% (v / v), chitosan Sugar 1.2wt%, Chinese toon-water chestnut skin compound extract 0.5wt%...

Embodiment 3

[0024] The preparation method of Chinese toon-water chestnut skin composite extract is as follows: mix Chinese toon and water chestnut skin according to the mass ratio of 1:2, put them into an extraction tank, add water to immerse, heat to 95°C, extract for 2 hours, and filter to obtain the extract 1 ; soak the filter residue after the first extraction with water, heat to 82°C, extract for 2 hours, and filter to obtain the extract 2; add water to the filter residue after the second extraction, heat to 72°C, extract for 3 hours, and filter to obtain the extract 3. Combine extract 1, extract 2 and extract 3 to obtain Chinese toon-water chestnut skin composite extract.

[0025] A plant essential oil compound chitosan citrus coating preservative, the raw materials of which are: compound plant essential oil (mixed with ponkan essential oil and tea tree essential oil at a volume ratio of 1:1) 0.9% (v / v), chitosan Sugar 1.5wt%, Chinese toon-water chestnut skin compound extract 0.6wt%...

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Abstract

The invention belongs to the field of preparation of fruits and vegetables preservation preservatives, and particularly relates to a plant essential oil composite chitosan citrus film preservative which comprises raw materials as follows: 0.6-1.2%(v / v) of compound plant essential oil, 1.2-1.8 wt% of chitosan, 0.5-0.8 wt% of a toona sinensis and eleochairis toberosa peel composite extracting solution, 180-220 mg / L of natamycin, 0.5-1.5 wt% of CaCl2, and the balance of distilled water. The compound plant essential oil is formed by mixing ponkan essential oil and tea tree essential oil in a volume ratio of 1:1. The plant essential oil composite chitosan citrus film preservative prepared by the invention achieves a chemical preservation effect in a disease-resistant aspect, is obviously superior to chemical preservation in aspects of fruit aging prevention and quality, is low in cost and safe, and can replace chemical preservation of citrus fruits.

Description

technical field [0001] The invention belongs to the field of preparation of fresh-keeping preservatives for fruits and vegetables, and in particular relates to a vegetable essential oil compound chitosan citrus film-coated preservative. Background technique [0002] Citrus is an important fruit resource, which is deeply loved by consumers because of its rich nutrition, variety and large output. However, there are problems such as the abuse of carbendazim preservatives in the post-harvest preservation of citrus in our country, which seriously limits the development and growth of the citrus industry. [0003] Chemical fungicides have been and are still an important means of citrus preservation. However, resistance issues, food safety, and environmental threats to the use of chemical fungicides have increasingly limited their use. As a kind of natural spices, citrus essential oil and tea tree essential oil have antibacterial, antiseptic and antioxidative effects; and because ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23B7/16A23B7/154A23B7/08A23B7/157
CPCA23B7/08A23B7/154A23B7/157A23B7/16A23V2002/00A23V2200/10A23V2250/1578A23V2250/511
Inventor 张伟清林媚冯先桔平新亮王天玉王燕斌
Owner ZHEJIANG CITRUS RES INST
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