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A refrigerated fresh keeping method for daylily

A fresh-keeping method, day lily technology, which is applied in the fields of fruit and vegetable preservation, fruit/vegetable preservation through freezing/refrigeration, food preservation, etc., can solve the problems of not being able to meet the long-term demand of fresh day lily, and achieve the effect of slowing down browning

Inactive Publication Date: 2006-12-13
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing day lily cold preservation method is to pack the day lily with a common polyethylene film bag and store it in a cold storage. The storage and freshness period is generally about 20 days, which is far from being able to meet the long-term demand for fresh day lily in the market.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] (1) Pick the day lily, and pick out the day lily that has diseases, insect pests or damage.

[0032] (2) Put 100kg of day lily into 500kg of chlorine dioxide aqueous solution (v / v 1:500) and soak for 5 minutes.

[0033] (3) After the day lily is sterilized by chlorine dioxide solution, put it into a container and drain off the rinse solution on the surface.

[0034] (4) Put the drained day lily into a 3°C freezer for 12 hours.

[0035] (5) While the day lily is precooling in the cold storage, turn on the ozone generator in the cold storage to make the ozone concentration in the storage reach 5mg / m 3 , The cold storage should be closed during the ozone treatment.

[0036] (6) After the day lily has been pre-cooled and treated with ozone, put it into a 0.04mm thick low-density polyethylene film and put it in a fresh-keeping bag.

[0037] (7) Place 5 packs of preservatives for every 10kg of day lily, and place the preservatives in fresh-keeping bags.

[0038] (8) Refri...

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PUM

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Abstract

The invention discloses a kind of refrigeration and fresh-keeping method for yellow-flower-vegetable, comprise the procedure as follow: (1) poaching :make the yellow-flower-vegetable dip-bleach in chlorine dioxide water solution; (2) draining; preparation cold; the temperature is 2-4DEG C; (3)ozonation: the consistence of ozone is 3-6mg / m3, the treatment time is 3-6 hour; (4) put into fresh-keeping bag; (5) add antistaling agent; (6) put the antistaling agent that the weight is 0.2-0.3% yellow-flower-vegetable weight into the fresh-keeping bag; (7) store: the refrigetion temperature is 2-4DEG C. Adopt the method of the invention, the fresh yellow-flower-vegetable can store two monthes, still keeping the fresh characteristic.

Description

technical field [0001] The invention relates to a storage and fresh-keeping technology for vegetables, in particular to a long-term storage and fresh-keeping method capable of sterilizing and absorbing ethylene. Background technique [0002] Day lily is rich in nutrition, high in vitamins, protein, sugar and minerals, and has special health care and medicinal functions, so it is a precious vegetable. Since day lily is difficult to keep fresh, it has been dehydrated and dried before being stored and sold. In recent years, the method of directly cooking with fresh day lily has been favored by consumers, and the market demand for fresh day lily has increased greatly. The harvesting period of day lily is mainly from mid-to-late May to mid-to-early October. After harvesting, it will start to brown and decay on the second day at a temperature of 25°C to 30°C. The initial stage is that the flower buds turn yellow, and the buds appear later. , or even rot, sensory and edible quali...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B7/04A23B7/157
Inventor 茅林春潘炘
Owner ZHEJIANG UNIV
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