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Fresh bamboo fungus drying pretreatment system and method

A pretreatment and Dictyophora technology, which is applied to the preservation of fruits and vegetables, the preservation of fruits/vegetables through freezing/refrigeration, and the preservation of fruits/vegetables through dehydration, etc., can solve the problems of yellowing on the surface of Dictyophora, delay decomposition, coking, and preserve The effect of nutritional value

Pending Publication Date: 2020-10-23
薛力云
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of yellowing of the surface of Dictyophora during long-term storage in the prior art, the present invention provides a drying pretreatment system and method for fresh Dictyophora

Method used

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  • Fresh bamboo fungus drying pretreatment system and method
  • Fresh bamboo fungus drying pretreatment system and method
  • Fresh bamboo fungus drying pretreatment system and method

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Embodiment 1

[0042] The existing Dictyophora treatment process is to wash the cultivated fresh Dictyophora, then dry or air-dry it in a natural or artificial manner, so that its moisture content is reduced to below 5%, thereby improving its preservation. expiration date. However, since natural drying requires special natural conditions, the existing food processing industry cannot rely on unstable natural factors for processing, so most of them use mechanical drying methods to achieve rapid drying of Dictyophora by controlling environmental parameters.

[0043] Because bamboo fungus contains a large amount of polysaccharides, its nutritional value mainly comes from this, and this substance is easily oxidized, and the aldehyde group at the end may be oxidized into carboxyl, and if it continues to oxidize, it may be cracked into monosaccharides and the like Molecular fragments to generate substances with a large number of aldehyde groups, ketone groups, and carboxyl groups. And the oxidatio...

Embodiment 2

[0056] Also disclosed in this embodiment is a fresh bamboo fungus drying pretreatment system, such as Figure 1-3 shown.

[0057] It is mainly divided into three systems, the closed-loop drying room, the inside of which is a closed material vehicle, the thyristor heating tube and the fan with circulating frequency conversion; the second is the external liquid nitrogen gasification injection component. The liquid nitrogen gasification injection component forms a hypoxic environment in the storage space by gasifying the stored liquid nitrogen source and injecting it into the closed-loop drying room to discharge the original gas. The nitrogen source is obtained by vaporizing the storage tank storing liquid nitrogen in the gasification equipment, and the gasification equipment is connected with the fresh air port of the circulation fan.

[0058] The dehumidification and reflux system, through the connection with the closed-loop drying room, separates the gas with low oxygen conte...

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Abstract

The invention belongs to the field of food processing, and discloses a fresh bamboo fungus drying pretreatment system. The system comprises: a closed-loop drying room having a placement space and a sensor; a liquid nitrogen gasifying and injecting assembly which is used for gasifying a stored liquid nitrogen source and injecting the gasified liquid nitrogen source into the closed-loop drying roomto discharge original gas so as to form a low-oxygen environment in the placement space; a dehumidification backflow system which is communicated with the closed-loop drying room to carry out gas-liquid separation on the low-oxygen-content gas exhausted from the placement space and inject the low-oxygen-content gas into the closed-loop drying room again; and a cooling assembly which is arranged atthe air inlet end of the dehumidification backflow system and is used for reducing the temperature of gas. The invention further discloses a treatment method. The treatment method comprises the following steps: pushing fresh bamboo fungi into the closed-loop drying room; starting the liquid nitrogen gasification injection assembly to exhaust air; starting a silicon controlled rectifier heating tube arranged in the closed-loop drying room for heating, and performing baking to obtain a dry material; and encapsulating a dry material into a finished product. According to the system and the method, coking and browning of polysaccharide components in bamboo fungus processing can be avoided, so that the nutrition of the bamboo fungi is reserved.

Description

technical field [0001] The invention belongs to the technical field of food processing, and in particular relates to a drying pretreatment system and method for fresh bamboo shoots. Background technique [0002] The polysaccharide content in bamboo fungus is 10.82%, 8 kinds of essential amino acids are contained in 17 kinds of amino acids, and the total amount of amino acids is 8.72%. Winter bamboo fungus has high nutritional value and is a kind of food and medicine with great market and development value. With fungus. [0003] Studies at home and abroad have found that Dictyophora contains polysaccharides, which have immunoregulatory activity. Polysaccharides T-2-HN (linear mannan) and T-5 polysaccharides with immunoregulatory effects have been isolated from the fruiting body of Dictyophora long skirt. -N (for dextran). Studies have found that the extract of Dictyophora submerged mycelium powder can significantly improve the phagocytosis of macrophages, significantly incr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L31/00A23B7/02A23B7/152A23B7/04
CPCA23L31/00A23B7/02A23B7/152A23B7/04
Inventor 薛力云李议
Owner 薛力云
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