Freezing and drying process of bamboo fungus

A drying process, the technology of Dictyophora, applied in food science, food preservation, application, etc., can solve the problems of Dictyophora easy to gelatinize, difficult to dry, and quality difference, so as to avoid gelatinization of Dictyophora and increase nutritional value , Improve the effect of appearance

Active Publication Date: 2014-07-30
来安县永阳知识产权运营有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the bamboo fungus is very fragile and corrupt, and the drying of the bamboo fungus is a difficult problem for the bamboo fungus products
At present, Dictyophora is mainly dried by air drying or baking. Dictyophora is easily gelatinized at high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0018] Example 1

[0019] The freeze-drying process of bamboo fungus includes the following steps:

[0020] (1) Raw material selection: choose bamboo fungus with bright color and complete strains, remove the roots and mud;

[0021] (2) Wash and air-dry: Put the bamboo fungus in hot water at 50°C and soak for 2 minutes until the mesh skirt is attached to the fungus support. Take out the bamboo fungus and hang on the fungus cap, and air dry until no water drips down the surface of the fungus;

[0022] (3) Removal of the fungus cap: cut off the fungus cap of the bamboo fungus, leaving the fungus and net skirt;

[0023] (4) Pre-freezing for plate loading: Put the bamboo fungus on a plate and put it in a low-temperature refrigerator, pre-cooling at -30°C for 1 hour, until the water in the bamboo fungus is fully frozen;

[0024] (5) Vacuum constant temperature drying: Put the frozen bamboo fungus quickly into the drying chamber of the freeze dryer, and start vacuuming until the vacuum in the d...

Example Embodiment

[0028] Example 2

[0029] The freeze-drying process of bamboo fungus includes the following steps:

[0030] (1) Raw material selection: choose bamboo fungus with bright color and complete strains, remove the roots and mud;

[0031] (2) Wash and air-dry: Put the bamboo fungus into hot water at 35°C and soak for 3 minutes until the mesh skirt is attached to the bacterial support. Take out the bamboo fungus and hang it from the fungus cap, and air dry until the surface of the bamboo fungus does not drip;

[0032] (3) Removal of the fungus cap: cut off the fungus cap of the bamboo fungus, leaving the fungus and net skirt;

[0033] (4) Pre-freezing for loading: Put the bamboo fungus on a plate and put it in a low-temperature refrigerator, and pre-cool at -30°C for 2 hours, until the water in the bamboo fungus is fully frozen;

[0034] (5) Vacuum constant temperature drying: Put the frozen bamboo fungus quickly into the drying chamber of the freeze dryer, and start vacuuming until the vacuum ...

Example Embodiment

[0038] Example 3

[0039] The freeze-drying process of bamboo fungus includes the following steps:

[0040] (1) Raw material selection: choose bamboo fungus with bright color and complete strains, remove the roots and mud;

[0041] (2) Wash and air-dry: Put the bamboo fungus in hot water at 60℃ and soak for 1 minute until the mesh skirt is attached to the fungus support. Take out the bamboo fungus and hang it from the fungus cap, and air dry until no water drops on the surface of the fungus;

[0042] (3) Removal of the fungus cap: cut off the fungus cap of the bamboo fungus, leaving the fungus and net skirt;

[0043] (4) Pre-freezing for plate loading: Put the bamboo fungus on a plate and put it in a low-temperature refrigerator, pre-cooling at -30℃ for 1.5 hours, until the water in the bamboo fungus is fully frozen;

[0044] (5) Vacuum constant temperature drying: Put the frozen bamboo fungus quickly into the drying chamber of the freeze dryer, and start vacuuming until the vacuum in t...

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PUM

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Abstract

The invention discloses a freezing and drying process of bamboo fungus. The process comprises the following steps: (1) selecting raw materials; (2) cleaning and airing; (3) cutting caps; (4) pre-cooling at -30 DEG C for 1-2 hours; (5) drying at constant temperature in vacuum, vacuumizing, maintaining the temperature in a drying cabin at (-20)-(-15) DEG C and drying for 6-8 hours; (6) heating by a heating plate in the drying cabin till the temperature of the drying cabin is 35-45 DEG C and maintaining the temperature for 20-30 minutes, then, heating to 60-70 DEG C and maintaining the temperature for 1-2 hours; (7) regulating the temperature in the drying cabin and cooling the drying cabin to 35-45 DEG C and maintaining the temperature for 1-2 hours; and (8) packaging. The process disclosed by the invention has the beneficial effects that by freezing and drying the bamboo fungus by means of a vacuum drying technology, the bamboo fungus is prevented from being gelatinized by high-temperature roasting, the appearance quality of the dried bamboo fungus is improved, and the nutritional value of the dried bamboo fungus is increased.

Description

technical field [0001] The invention relates to a freeze-drying process of bamboo fungus, belonging to the technical field of drying processes. Background technique [0002] Dictyophora is a cryptogamous fungus parasitic on the roots of dry bamboos. Its shape is slightly resembling a net-shaped dry white snakeskin. It has a dark green cap, a snow-white cylindrical stipe, and a pink egg-shaped receptacle. At the top of the stipe, there is a delicate white mesh skirt spreading downward from the cap, which is called "Snow Skirt Fairy", "Flower of Mountain Treasure", "Flower of Fungus" and "Queen of Fungi". Dictyophora is rich in nutrition, rich in fragrance and delicious in taste. It has been listed as one of the "Eight Treasures of Grass" since ancient times. At the same time, Dictyophora is also a good product for diet. The total amount of compounds is 60.4%, including 4.2% bacterial sugar, 8.4% crude fiber, and 9.3% ash. It has a health care effect on hypertension, neurast...

Claims

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Application Information

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IPC IPC(8): A23L3/44
CPCA23L3/44
Inventor 徐玉文
Owner 来安县永阳知识产权运营有限公司
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