Ready-to-eat freeze-dried black wood ears and preparation method thereof

A black fungus and freeze-drying technology, which is applied in food drying, food freezing, food science, etc., can solve the problems of storage conditions and soaking time of black fungus, the nutritional components are damaged, the process is cumbersome, and the soaking time is long. Effects of consumer market, expansion of consumer groups, and convenience of eating methods

Inactive Publication Date: 2019-03-08
伊春市特瑞森林食品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The process of eating black fungus is cumbersome, and the storage conditions and soaking time are not well grasped, which leads to the damage of black fungus nutrients, and the eating conditions are limited
Specifically, before eating, it needs to be soaked and rinsed with water. The soaking time is long, nutrients are easily lost and there is a risk of secondary pollution.
[0004] In addition, black fungus is rich in plant collagen, which needs to be chewed and easily digested and absorbed. For the elderly and children, black fungus needs to be processed and cooked again, which is very inconvenient

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A preparation method of instant freeze-dried black fungus, the specific steps are as follows:

[0026] Step 1) Drying and screening: After the picked black fungus is dried in the natural sunlight for more than 36 hours, and the water content is lower than 85%, it is classified and screened according to the variety and size, and divided into four standards according to the diameter of the dried fungus: 1) Grade 1: diameter below 15mm, 2) Grade 2: diameter between 15mm and 18mm, 3) Grade 3: diameter between 18mm and 25mm, 4) Grade 4: diameter greater than 25mm

[0027] Step 2) Soak hair cleaning: Soak black fungus of the same grade together. The water for soaking hair is filtered tap water. According to the ratio of 1kg dried fungus to 20kg water, the water temperature is between 10-25℃, and soak for 5-6 hours ;After soaking, the black fungus enters the automatic cleaning process through the conveyor belt. The automatic bubble cleaning machine is used to separate the dirt...

Embodiment 2

[0032] A preparation method of instant freeze-dried black fungus snack food, the specific process:

[0033] 1) The first-grade black fungus after freeze-drying in Example 1 was taken out in a closed environment with a temperature of 20°C and a relative humidity of 25%, and entered into an automatic powdering machine through a conveyor belt. The setting speed of the automatic powder spreader is not higher than 5m / min, and the fineness of the seasoning is not lower than 100 mesh. The prepared powder is evenly sprinkled on the surface of the material through the automatic powder spreader; 2) again Through the conveyor belt, the material dipped in the seasoning powder will enter the automatic packaging machine; 3) The packaging environment will maintain a temperature of 20°C and a relative humidity of 25%. After packaging, it will be automatically weighed, filled into bags, and then packaged after adding an oxygen scavenger.

Embodiment 3

[0035] A method for preparing an instant freeze-dried black fungus brewed drink, the specific process:

[0036] The four-grade black fungus after freeze-drying in Example 1 is taken out in a closed environment at a temperature of 20°C and a relative humidity of 25%, and then put into a pulverizer, the speed of the pulverizer is set at 5000 rpm, and pulverized The temperature is set to 500 mesh, and the operation time is taken out after 2 minutes, and the taken-out black fungus freeze-dried powder is loaded into an automatic filling machine for filling and packaging.

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PUM

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Abstract

The invention provides ready-to-eat freeze-dried black wood ears and a preparation method thereof. The preparation method comprises the following steps of (1) performing drying in sunshine and screening; (2) performing soaking and cleaning; (3) performing fixation and pre-cooking; (4) performing pre-freezing; and (5) performing freeze drying. The ready-to-eat freeze-dried black wood ears can alsobe further processed into ready-to-eat type leisure foods and brewed type beverages. According to black wood ear products, the risk of the black wood ears in the eating course can be effectively reduced; low-temperature frozen and dried black wood ears reserve color, fragrance, taste and nutrient components of fresh black wood ears, an original solid skeleton structure is not lost, and original shape of materials can be maintained. The black wood ears after processing treatment can recover to the fresh wood ear state in several minutes after being dehydrated, and the ready-to-eat black wood ears can be directly eaten and are simple and convenient to eat.

Description

technical field [0001] The invention belongs to the field of food processing, and in particular relates to an instant freeze-dried black fungus and a preparation method thereof. Background technique [0002] Black fungus contains protein, fat, polysaccharide, calcium, phosphorus, iron and other elements, as well as carotene, vitamin B1, vitamin B2, niacin, etc., and also contains nutrients such as phospholipids and sterols. Fungus is rich in nutrition and is known as "the crown of fungi". However, fresh fungus contains porphyrin, so the fungus needs to be stored after being exposed to sunlight after picking. [0003] The existing storage method of black fungus is to store after drying, and the main eating method is to cook and eat the dried black fungus after soaking. The process of eating black fungus is cumbersome, and the storage conditions and soaking time are not well grasped, which leads to damage to the nutritional content of black fungus, which is restricted by con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L31/00A23L5/00
CPCA23V2002/00A23L5/00A23L31/00A23V2300/10A23V2300/20
Inventor 张蓓蕾
Owner 伊春市特瑞森林食品有限公司
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