Preparation method for dried tremella

A production method and technology of jade fungus, which are applied in the preservation of fruits/vegetables by dehydration, food science, etc., can solve the problems of natural drying method, such as large land area, affecting the quality of dry products, market circulation enterprise benefits, and increasing labor costs.

Inactive Publication Date: 2019-03-26
JILIN AGRICULTURAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there is a single method to obtain dried jade fungus, and the traditional outdoor drying method is adopted. This method is extremely susceptible to the influence of weather conditions and insect pests and dust caused by unclean drying sites, thereby reducing the market value of dried jade fungus
In areas with little rain in the north, it still takes one to two days to dry

Method used

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  • Preparation method for dried tremella

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Experimental program
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Effect test

Embodiment 1

[0013] Embodiment 1 A kind of preparation method of dry product jade fungus

[0014] A kind of preparation method of dried jade fungus, concrete steps are as follows:

[0015] 1) Harvesting: stop watering for 3 hours before harvesting, so that the water on the surface of the ears evaporates, and the water content is below 95%. For the mature ear piece with white spores visible on the surface, choose the ear piece with a complete color and white color, and clean the base of the material and other impurities;

[0016] 2) Pre-cooling: Seal and pack the screened ear piece in a ziplock bag, do not compact it hard to affect the shape of the ear, store it in a refrigerator at 0°C-4°C for 2 hours, and carry out pre-cooling treatment;

[0017] 3) Drying: Use a fruit and vegetable dryer with a power of 250W, a rated voltage of 220V, and hot air circulation; set the temperature of the dryer to 65°C, and basically reach 40°C after 30 minutes of preheating. Lay the ear pieces evenly in a...

Embodiment 2

[0021] Example 2 The effect of drying temperature on the product of jade fungus

[0022] By setting different temperature gradients, namely 35°C, 45°C, 55°C, 65°C, comparing the color, wet-dry ratio and rehydration rate of dried jade fungus at different temperatures, and optimizing the drying temperature;

[0023] By using the Color Flex by Hunter lab 45 / 0 colorimeter to identify the color of the dry products obtained by drying at different temperatures, it can be seen that with the increase of temperature, the L (lightness), a (red-green), b (yellow blue) shows irregular changes, and there are significant differences among the four temperatures, 65°C △ The highest value indicates that the color properties of dried ear pieces obtained by drying at 65°C are better;

[0024] The analysis of the wet-dry ratio and rehydration rate of jade fungus at different drying temperatures showed that there was no significant difference in the wet-dry ratio and rehydration rate among the fo...

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Abstract

The invention discloses a preparation method for dried tremella. The preparation method comprises the following steps: 1) harvesting: stopping watering for 2.5-3.5h before harvesting, thereby guaranteeing water content of tremella below 95%; selecting mature tremella in size of 4cm-5cm and removing impurities; 2) pre-cooling: sealing and pre-cooling for 1.5-3h at 0-4 DEG C; 3) drying: uniformly paving and placing tremella in a single layer, drying for 2.5-6h at 35-65 DEG C till water content of tremella is less than or equal to 14%, stopping heating and cooling to room temperature; 4) sealing:split-charging the cooled dried tremella, and then sealing, thereby acquiring the dried tremella. According to the drying method provided by the invention, processing time is short, efficiency is increased and product quality is not influenced; through detection, the product of dried tremella acquired by drying has an excellent color character; drying temperature has no influence on the yield ofdried tremella.

Description

technical field [0001] The invention belongs to the field of agricultural product processing, and in particular relates to a method for preparing dried jade fungus. Background technique [0002] Jade fungus has a small bowl of thick meat, single round edges, and crystal clear commodity properties. It is widely loved by consumers and has been sold in Jilin, Liaoning, Henan, Shandong, Jiangsu, Zhejiang, Guizhou, Xinjiang, Guangxi and other provinces (cities, cities, autonomous region) have been popularized, and all have achieved good economic benefits, with the characteristics of high yield and stability, strong stress resistance, and short cultivation cycle. Jade fungus nourishes the blood, reduces blood coagulation, moistens the lungs, and dissolves stones. The hair on the back of the jade fungus is rich in polysaccharides, which have high anticancer activity. At the same time, there are many special effects such as nourishing yin and strengthening yang, clearing lung and ...

Claims

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Application Information

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IPC IPC(8): A23L31/00A23B7/02
CPCA23B7/02A23L31/00
Inventor 宋冰陈艳琦李玉付永平李丹李晓李长田李雪飞吕志文简冰孟灵思徐帅
Owner JILIN AGRICULTURAL UNIV
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