Fresh-keeping bag specially for white mushroom

A technology of fresh-keeping bags and white mushrooms, which is applied in the direction of protecting fruits/vegetables with a coating protective layer, can solve the problems of poor effect, inability to effectively inhibit the browning of white mushrooms, softening of the mushroom body, and deterioration of quality.

Inactive Publication Date: 2008-07-30
ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of bag that can effectively inhibit white mushrooms, aiming at the defects that the existing fresh-keeping bags are used to keep white mushrooms fresh, which cannot effectively inhibit the browning of white mushrooms, the softening

Method used

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  • Fresh-keeping bag specially for white mushroom

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0049] Example 1: (Preparation of special fresh-keeping bag for white mushroom 1)

[0050] Weigh LDPE 100kg, SiO according to the formula 2 3kg, SBS10kg, EVA14kg, polyethylene glycol 0.7kg, glycerol monostearate 0.5kg, calcium phosphate 1.4kg, zeolite 2kg, paraffin wax 0.5kg, mix the components, double-roll kneading, pulverize, and put into rotation speed 30r In the granulator at 120°C, 145°C, 150°C and 160°C, granular materials are formed in the pelletizer at 120°C, 145°C, 150°C, and 160°C. These granular materials are then fed into the plastic extruder at a speed of 40r / min. After extruding, blowing, cooling, pulling and unwinding at the temperature of each zone of ℃, 170℃ and 165℃, the finished film with a thickness of 0.03mm is made, and then it is made into a special fresh-keeping bag for white mushrooms with a size of 45cm×35cm×0.03mm.

[0051] Pleurotus ostreatus was collected from Jiangshan City, Zhejiang Province, and the damaged Pleurotus ostreatus was removed. The fresh-k...

Example Embodiment

[0052] Example 2: (Preparation of special fresh-keeping bag for white mushroom 2)

[0053] In this example, each component is weighed LDPE 100kg, SiO 2 2kg, SBS8.5kg, EVA13kg, polyethylene glycol 0.78kg, glycerol monostearate 0.64kg, calcium phosphate 1.25kg, zeolite 1.6kg, paraffin wax 0.4kg; the film-making process and preservation process are the same as in Example 1, and stored for 15d Afterwards, the decay rate was 9.2%, and the umbrella opening rate was 8.3%.

Example Embodiment

[0054] Example 3: (Preparation of special fresh-keeping bag for white mushroom 3)

[0055] In this example, each component is weighed LDPE 100kg, SiO 2 3.9kg, SBS11.5kg, EVA15kg, polyethylene glycol 0.61kg, glycerol monostearate 0.42kg, calcium phosphate 1.55kg, zeolite 2.45kg, paraffin wax 0.58kg; the film-making process and preservation process are the same as in Example 1, storage After 15 days, the decay rate was 8.7%, and the umbrella opening rate was 7.4%.

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Abstract

The invention discloses a specialized membrane bag for white mushroom, which belongs to a field of fruit and vegetable preserving technology. The components and the weight proportion of each component are as follows: 100 shares of LDPE, 2-4 shares of SiO2, 8-12 shares of SBS, 13-15 shares of EVA, 0.6-0.8 shares of polyethylene glycol, 0.4-0.7 shares of glycerin monostearate, 1.2-1.6 shares of calcium phosphate, 1.5-2.5 shares of zeolite and 0.4-0.6 shares of paraffin. The bag is characterized in that the bag has good gas-selective permeability, can create a gaseous micro-environment suitable for white mushroom storage, and at the same time avoids the condensation phenomenon in the membrane bag , timely absorbs the ethylene, etc., ripening gas produced in the process of white mushroom storage, thus effectively inhibiting the respiration of the white mushroom, reducing the occurrence of browning, bletting and spoilage etc., so as to prolonging the white mushroom storage period and keep the good quality thereof. The bag can be popularized for application in the field of white mushroom storage and preservation.

Description

technical field [0001] The invention relates to the technical field of fresh-keeping of fruits and vegetables, in particular to a special fresh-keeping bag for white mushrooms. Background technique [0002] Harvested fruits and vegetables are still a living organism, still carrying out vigorous physiological activities. For a long time, low temperature + fresh-keeping bags are an effective means to inhibit the quality deterioration of harvested fruits and vegetables and delay the aging of fruits and vegetables. That is to control the gas composition of the storage environment, control the respiration of fruits and vegetables at the lowest level, reduce water loss and reduce the ethylene content in the environment, which can delay the ripening and aging of fruits and vegetables during storage, so as to prolong the storage time and keep longer. The purpose of good fresh-keeping effect. The existing plastic wrap is designed for the physiological characteristics and storage re...

Claims

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Application Information

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IPC IPC(8): A23B7/16
Inventor 郜海燕周拥军陈杭君毛金林陈文烜
Owner ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES
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