CN103315048A - Freeze-drying truffle production method - Google Patents
Freeze-drying truffle production method Download PDFInfo
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- CN103315048A CN103315048A CN2013102770548A CN201310277054A CN103315048A CN 103315048 A CN103315048 A CN 103315048A CN 2013102770548 A CN2013102770548 A CN 2013102770548A CN 201310277054 A CN201310277054 A CN 201310277054A CN 103315048 A CN103315048 A CN 103315048A
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Abstract
The invention discloses a freeze-drying truffle production method. The method comprises the following steps of: (1) at least freezing truffle slices to be less than -30 DEG C; (2) placing the truffle slices into a freezing drying machine, controlling the temperature at -20 DEG C to -27 DEG C, maintaining the air pressure at 10 to 30Pa, and sublimating the truffle slices for 2 to 5h; (3) additionally installing an air drying box in front of an air inlet of the freezing drying machine, drying the air entering the freezing drying machine at the normal temperature, then gradually blowing the dried air into the freezing drying machine, reducing the pressure inside the freezing drying machine to the normal pressure, and heating the air inside the freezing drying machine to the normal temperature; and (4) sealing and packing the freeze-dried truffle slices obtained in the step (3) in a bacteria-free environment. The truffle is dehydrated into a dry product in the freeze-drying manner and stored, so that the problems that the quality is reduced by the loss of the fragrance of the truffle due to the volatilization of the fragrance in the heating, the storage time is short, the taste is poor, and the commodity characteristic is poor can be avoided.
Description
Technical field
The present invention relates to biological product technical field, more particularly, relate to a kind of freeze-drying truffle production method.
Background technology
Truffle is a kind of high-grade edible bacterium of preciousness, for convenient storage, generally adopts at present the heating, drying technology to make the truffle dehydration become dry product and stores.
At present, the defective of existing heating, drying technology: 1, in the heating process, a large amount of volatilizations of the fragrance of truffle cause dry and soft dew fragrance to run off in a large number, have reduced quality; 2, the dry and soft dew of heat drying technical finesse divides content high, and storage time is short; 3, the dry and soft dew hardness of heat drying technical finesse is large, and directly eating mouth feel is poor.4, the dry and soft dew sheet of heat drying technical finesse is seriously crispaturaed, and mode of appearance is poor, and commodity is poor.
Therefore, how to solve because the dry variety of issue that causes is the present technical issues that need to address of those skilled in the art.
Summary of the invention
In view of this, the invention provides a kind of freeze-drying truffle production method, to solve the variety of issue that causes owing to dry.
For achieving the above object, the invention provides following technical scheme:
A kind of freeze-drying truffle production method comprises step:
1) the truffle sheet is freezing at least to below-30 ℃;
2) the truffle sheet is placed in the freeze drier, and temperature is controlled between-20 ℃ to-27 ℃, air pressure remains under the 10-30Pa state and distilled 2-5 hour;
3) before described freeze drier air inlet, install air drying cabinet additional, the air that enters described freeze drier is carried out progressively entering in the freeze drier again after drying is processed at normal temperatures, make and revert to normal pressure in the freeze drier, will be heated to normal temperature in the freeze drier simultaneously;
4) the truffle freeze-drying sheet that under gnotobasis step 3) is obtained packs.
Preferably, in above-mentioned freeze-drying truffle production method, described step 1) is specially: the truffle sheet is put into the quick-frozen storehouse, and snap frozen arrives below-30 ℃ in 2 hours.
Preferably, in above-mentioned freeze-drying truffle production method, described step 2) be specially: the truffle sheet is placed in the freeze drier, and temperature is controlled between-20 ℃ to-27 ℃, air pressure remains under the 10-30Pa state and distilled 2-5 hour, until the Han Shui Liang of truffle dry plate＜=3%.
Preferably, in above-mentioned freeze-drying truffle production method, before described step 1), also comprise step 01) select fresh, spore maturity greater than 85% truffle, clean up the earth on surface with giant, truffle is cut into the thick thin slice of 3-5mm.
Can find out from above-mentioned technical scheme, freeze-drying truffle production method provided by the invention, adopt cryodesiccated mode to make truffle dehydration become dry product and store, avoided in the prior art because a large amount of volatilizations of fragrance that need to heat the truffle that causes cause dry and soft dew fragrance to run off in a large number, and reduced quality, and storage time is short, mouthfeel is poor, mode of appearance is poor, the problem that commodity is poor.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The process chart of the freeze-drying truffle production method that Fig. 1 provides for the embodiment of the invention.
The specific embodiment
The invention discloses a kind of freeze-drying truffle production method, to solve the variety of issue that causes owing to dry.
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
See also Fig. 1, the process chart of the freeze-drying truffle production method that Fig. 1 provides for the embodiment of the invention.
The freeze-drying truffle production method that the embodiment of the invention provides comprises:
Step S101: raw material preliminary working
This step also can be finished in other technique, namely in freeze-drying truffle production method provided by the invention, can not have this step.
Step S102: superfreeze;
The truffle sheet is freezing at least to below-30 ℃.
Step S103: low-temperature vacuum drying;
The truffle sheet is placed in the freeze drier, and temperature is controlled between-20 ℃ to-27 ℃, air pressure remains under the 10-30Pa state and distilled 2-5 hour.
Step S104: also press also temperature;
Before described freeze drier air inlet, install air drying cabinet additional, the air that enters described freeze drier is carried out progressively entering in the freeze drier again after drying is processed at normal temperatures, make and revert to normal pressure in the freeze drier, will be heated to normal temperature in the freeze drier simultaneously.
Step S105: pack;
The truffle freeze-drying sheet that under gnotobasis step S104 is obtained packs.
Freeze-drying truffle production method provided by the invention, adopt freezing mode to make truffle dehydration become dry product and store, avoided in the prior art because a large amount of volatilizations of fragrance that need to heat the truffle that causes cause dry and soft dew fragrance to run off in a large number, and reduced quality, and storage time is short, mouthfeel is poor, and mode of appearance is poor, the problem that commodity is poor.
In the present invention's one specific embodiment, described step S102 is specially: the truffle sheet is put into the quick-frozen storehouse, and snap frozen arrives below-30 ℃ in 2 hours.
In the present invention's one specific embodiment, described step S103 is specially: the truffle sheet is placed in the freeze drier, and temperature is controlled between-20 ℃ to-27 ℃, air pressure remained under the 10-30Pa state distillation 2-5 hour, until the Han Shui Liang of truffle dry plate＜=3%.
In the present invention's one specific embodiment, step S101 is specially: select fresh, spore maturity greater than 85% truffle, clean up the earth on surface with giant, truffle is cut into the thick thin slice of 3-5mm.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and General Principle as defined herein can be in the situation that do not break away from the spirit or scope of the present invention, in other embodiments realization.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (4)
1. a freeze-drying truffle production method is characterized in that, comprises step:
1) the truffle sheet is freezing at least to below-30 ℃;
2) the truffle sheet is placed in the freeze drier, and temperature is controlled between-20 ℃ to-27 ℃, air pressure remains under the 10-30Pa state and distilled 2-5 hour;
3) before described freeze drier air inlet, install air drying cabinet additional, the air that enters described freeze drier is carried out progressively entering in the freeze drier again after drying is processed at normal temperatures, make and revert to normal pressure in the freeze drier, will be heated to normal temperature in the freeze drier simultaneously;
4) the truffle freeze-drying sheet that under gnotobasis step 3) is obtained packs.
2. freeze-drying truffle production method as claimed in claim 1 is characterized in that, described step 1) is specially: the truffle sheet is put into the quick-frozen storehouse, and snap frozen arrives below-30 ℃ in 2 hours.
3. freeze-drying truffle production method as claimed in claim 1, it is characterized in that, described step 2) is specially: the truffle sheet is placed in the freeze drier, and temperature is controlled between-20 ℃ to-27 ℃, air pressure remains under the 10-30Pa state and distilled 2-5 hour, until the Han Shui Liang of truffle dry plate＜=3%.
4. such as each described freeze-drying truffle production method of claim 1-3, it is characterized in that, before described step 1), also comprise step 01) select fresh, spore maturity greater than 85% truffle, clean up the earth on surface with giant, truffle is cut into the thick thin slice of 3-5mm.
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| CN2013102770548A CN103315048A (en) | 2013-07-03 | 2013-07-03 | Freeze-drying truffle production method |
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| CN2013102770548A CN103315048A (en) | 2013-07-03 | 2013-07-03 | Freeze-drying truffle production method |
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| CN103315048A true CN103315048A (en) | 2013-09-25 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103820291A (en) * | 2014-03-07 | 2014-05-28 | 南华县咪依噜天然食品开发有限责任公司 | Freeze-dried-truffle soaking wine |
| CN104187592A (en) * | 2014-07-29 | 2014-12-10 | 北京上尚品生物科技有限公司 | Truffle slices and preparation method thereof |
| CN106222014A (en) * | 2016-07-27 | 2016-12-14 | 永仁野森达菌业有限公司 | A kind of processing method of Truffe wine |
| CN110810742A (en) * | 2019-09-11 | 2020-02-21 | 丽江三川实业集团有限公司 | Truffle sausage and preparation method thereof |
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2013
- 2013-07-03 CN CN2013102770548A patent/CN103315048A/en active Pending
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| CN1607002A (en) * | 2003-10-14 | 2005-04-20 | 张永清 | Method for processing Chinese caterpillar fungus |
| CN101623099A (en) * | 2009-04-17 | 2010-01-13 | 黑龙江北奇神高科保健品有限公司 | Blueberry probiotic powder and process method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103820291A (en) * | 2014-03-07 | 2014-05-28 | 南华县咪依噜天然食品开发有限责任公司 | Freeze-dried-truffle soaking wine |
| CN104187592A (en) * | 2014-07-29 | 2014-12-10 | 北京上尚品生物科技有限公司 | Truffle slices and preparation method thereof |
| CN106222014A (en) * | 2016-07-27 | 2016-12-14 | 永仁野森达菌业有限公司 | A kind of processing method of Truffe wine |
| CN110810742A (en) * | 2019-09-11 | 2020-02-21 | 丽江三川实业集团有限公司 | Truffle sausage and preparation method thereof |
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Application publication date: 20130925 |