CN103610030B - Instant dried white fungus and production method thereof - Google Patents

Instant dried white fungus and production method thereof Download PDF

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Publication number
CN103610030B
CN103610030B CN201310580595.8A CN201310580595A CN103610030B CN 103610030 B CN103610030 B CN 103610030B CN 201310580595 A CN201310580595 A CN 201310580595A CN 103610030 B CN103610030 B CN 103610030B
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drying
vacuum
white fungus
microwave
production
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CN201310580595.8A
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CN103610030A (en
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王开琼
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GUANGYUAN YUER FOOD Co Ltd
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GUANGYUAN YUER FOOD Co Ltd
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    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A23B - A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L31/00Edible extracts or preparations of fungi; Preparation or treatment thereof
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23VINDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES
    • A23V2002/00Food compositions, function of food ingredients or processes for food or foodstuffs

Abstract

The invention relates to a production method of instant dried white fungus. The production method comprises the following steps: (1) material selection, namely removing impurities from fresh white fungus, and cleaning; (2) slicing; (3) pre-freezing, namely carrying out pre-freezing for 12-14 hours at temperature from -10 DEG C to -25 DEG C; (4) drying, namely carrying out microwave vacuum freeze drying, wherein the microwave vacuum freeze drying comprises a low-temperature sublimation stage and a normal-temperature vacuum microwave drying stage; (5) vacuum encapsulation. According to the process, a curing process before drying is omitted, so that the loss of the tremella polysaccharide is avoided, and processing cost is saved by 15%. According to the instant dried white fungus processed by utilizing the production method, the product is pure in appearance and color and plump in form; after being rehydrated, the product is nature in form and pure in taste and flavor, the product quality is greatly improved, and the product is obviously superior to similar products processed by utilizing traditional methods.

Description

Instant tremella is dry and preparation method thereof
Technical field
The present invention relates to a kind of instant tremella to do and preparation method thereof.
Background technology
White fungus ( tremella fuciformis), also known as tremella, tremella, its property is flat, taste is sweet, nontoxic, is a kind of senior edible fungus, enjoys the good reputation of " king of edible mushroom ".Fresh white fungus water content reaches 75-80%, not storage endurance under normal temperature, and perishable rotten, drying is that requisite link processed by white fungus.The traditional processing method of white fungus is baking process, and its color and luster is dark, easy broken, poor quality, has illegal processor to adopt sulphuring to brighten and cheats consumers, bring food security hidden danger.As everyone knows, white fungus has edible inconvenient feature, and long-time infusion is unsuitable for the rhythm of life of modern, have impact on the expansion of consumption market.Market needs one conveniently white fungus food appearance.
Existing multinomial patent and document disclose the processing technology of instant tremella.As: Sichuan University number be 201110215249.0 Chinese patent, its main technique is alcohol immersion and high steam sofening treatment.Number be 201010291973.7 Chinese patent disclose a kind of fast-food dry tremella, its technique is by after raw white fungus slaking, does microwave vacuum freeze drying process." research of white fungus crisps by microwave vacuum drying technique " (total 305 phase 48-50 pages of processing of farm products research academic periodical) of Su Lijuan etc. disclose a kind of processing method of instant crisp white fungus, and main technique is that boiling slaking adds micro-wave vacuum.In these techniques, the maturation process methods such as HTHP are absolutely necessary processing step, unavoidably bring destruction and the loss of nutritional labeling in processing procedure.
Summary of the invention
The problem to be solved in the present invention is the preparation method providing a kind of instant tremella dry, and the instant tremella that this method is made is done, and brews i.e. edible with boiling water.
Another problem that the present invention will solve is to provide more than one instant tremella stating method processing to do.
The preparation method that instant tremella is dry, comprises the steps:
(1) select materials: select fresh white fungus, impurity elimination, cleaning;
(2) cut into slices: be cut into little sheet by after the raw material draining of step (1);
(3) pre-freeze: by the raw material of step (2) under-10 DEG C ~-25 DEG C conditions freezing 12 ~ 14 hours;
(4) dry: the raw material microwave vacuum freeze-drying device of step (3) is carried out drying, and dry run comprises two temperature rise periods, the first stage :-30 DEG C ~ 0 DEG C low-temperature distillation, vacuum 130 ~ 230Pa, 4 ~ 6 hours time; Second stage: 0-30 DEG C of normal-temperature vacuum microwave drying, vacuum 200 ~ 300Pa, time 3-4 hour;
(5) Vacuum Package.
More than one are stated the instant tremella that processing method makes and do.This instant tremella is done, and keep the natural form of white fungus after rehydration, taste flavor is purer, and nutritional labeling maximizes the retention, and improves product quality.
Present invention process has the following advantages:
1, compare with ZL201010291973.7 patented method, the application eliminates the curing step of dry process front HTHP, poach etc., avoid the loss of tremella polysaccharides, its microwave vacuum freeze manufacturing procedure is carried out stage by stage, the later stage of drying operation reaches the effect of nature slaking, the white fungus that present invention process is produced is done, more natural (the product that ZL201010291973.7 patented method is produced of its form after rehydration, rehydration aftershaping degree is poor), taste flavor is purer, substantially increases product quality.
2, microwave vacuum freeze drying process is adopted, microwave is as heating source, pyrolytic damage and the oxidative damage of dry run can be avoided, under vacuum state, the hydrone freezed directly distils as steam effusion, can not there is shrinkage phenomenon in the white fungus freezed in this process, white fungus auricle retains original shape substantially because of dehydration.Owing to not having the flowing of moisture, nutritional labeling is fixed in material, avoids the loss of nutritional labeling.After dry, material activity is constant, and appearance luster is pure, and form is full, sound construction, and simultaneously because moisture evaporation rate is fast, form porous, the rehydration of product is good.Boiling water brews i.e. edible, and its natural shape, shape, as frost flower, is equipped with matrimony vine, red date, rock sugar, is as good as with the white fungus congee of infusion.
3, eliminate the maturation process such as HTHP, poach program in early stage, save processing cost about 15%.
Detailed description of the invention
Embodiment 1
The first embodiment, the preparation method that a kind of instant tremella is dry, comprises the steps:
(1) select materials: select fresh white fungus double centner, impurity elimination, cleaning;
(2) cut into slices: be cut into little sheet by after the raw material draining of step (1);
(3) pre-freeze: by the raw material of step (2) under-10 DEG C ~-25 DEG C conditions freezing 12 hours;
(4) dry: the raw material of step (3) microwave vacuum freeze-drying device (is adopted the special microwave vacuum freeze drier that Nanjing Ya Tai microwave energy research institute produces, equipment patent ZL200920235147.3) carry out drying, dry run comprises two temperature rise periods, first stage :-30 DEG C ~ 0 DEG C low-temperature distillation, vacuum 130 ~ 230Pa, 6 hours time; Second stage: 0-30 DEG C of normal-temperature vacuum microwave drying, vacuum 200 ~ 300Pa, 3 hours time, terminate drying when the vacuum number of degrees are stablized constant, now raw material moisture is down to 3.5%, obtains finished product 25.3 kilograms;
(5) Vacuum Package.
A kind of instant tremella made with the first embodiment processing method is done.This instant tremella is done, and keep the natural form of white fungus after rehydration, taste flavor is purer, and nutritional labeling maximizes the retention, and improves product quality.
Embodiment 2
The second embodiment, the preparation method that a kind of instant tremella is dry, comprises the steps:
(1) select materials: select fresh white fungus double centner, impurity elimination, cleaning;
(2) cut into slices: be cut into little sheet by after the raw material draining of step (1);
(3) pre-freeze: by the raw material of step (2) under-15 DEG C ~-20 DEG C conditions freezing 14 hours;
(4) dry: the raw material of step (3) microwave vacuum freeze-drying device (is adopted the special microwave vacuum freeze drier that Nanjing Ya Tai microwave energy research institute produces, equipment patent ZL200920235147.3) carry out drying, dry run comprises two temperature rise periods, first stage :-30 DEG C ~ 0 DEG C low-temperature distillation, vacuum 150 ~ 210Pa, 4 hours time; Second stage: 0-30 DEG C of normal-temperature vacuum microwave drying, vacuum 220 ~ 280Pa, 4 hours time, terminate drying when the vacuum number of degrees are stablized constant, now raw material moisture is down to 4.5%, obtains finished product 26.7 kilograms;
(5) Vacuum Package.
A kind of instant tremella made with the second embodiment processing method is done.

Claims (2)

1. the preparation method that instant tremella is dry, is characterized in that comprising the steps:
(1) select materials: select fresh white fungus, impurity elimination, cleaning;
(2) cut into slices: be cut into little sheet by after the raw material draining of step (1);
(3) pre-freeze: by the raw material of step (2) under-10 DEG C ~-25 DEG C conditions freezing 12 ~ 14 hours;
(4) dry: the raw material microwave vacuum freeze-drying device of step (3) is carried out drying, and dry run comprises two temperature rise periods, the first stage :-30 DEG C ~ 0 DEG C low-temperature distillation, vacuum 130 ~ 230Pa, 4 ~ 6 hours time; Second stage: 0-30 DEG C of normal-temperature vacuum microwave drying, vacuum 200 ~ 300Pa, time 3-4 hour;
(5) Vacuum Package.
2. the instant tremella made by preparation method according to claim 1 is done.
CN201310580595.8A 2013-11-19 2013-11-19 Instant dried white fungus and production method thereof Active CN103610030B (en)

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Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103815216B (en) * 2014-03-12 2015-05-20 四川华信能源集团有限公司 Vacuum-freeze-dried soup containing fruit juice, tremella fuciformis berk and quinoa and production method thereof
CN104000178A (en) * 2014-05-29 2014-08-27 吉林农业大学 Preparation method of instant fruity crisp fungus chips
CN104000179A (en) * 2014-05-29 2014-08-27 吉林农业大学 Preparation method of instant spiced crisp fungus chips
CN103999987B (en) * 2014-06-11 2015-10-21 卢秦 A kind of preparation method brewing instant type tremella polysaccharides health protection tea
CN104381998A (en) * 2014-11-27 2015-03-04 福州缘顺食品有限公司 Preparation method of instant vacuum freeze-dried tremella fuciformis after brewing
CN106072507B (en) * 2016-07-22 2019-07-09 福建珍妙生物科技有限公司 A kind of tremella dried product and its processing method
CN106212639A (en) * 2016-07-26 2016-12-14 廖亚妹 A kind of preparation method of drying Tremella
CN106213480A (en) * 2016-08-08 2016-12-14 罗源县岐峰山水生态农业农民专业合作社 A kind of processing method brewing the whole colored Tremella of instant
CN106307483A (en) * 2016-08-29 2017-01-11 丽水市康益新生物科技有限公司 Making method of original-taste rapid-expansion instant tremella slices
CN107259518A (en) * 2017-07-26 2017-10-20 毛恩明 One kind brews instant tremella and preparation method thereof

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CN102669785A (en) * 2012-05-09 2012-09-19 陕西恒康生物科技有限公司 Preparation method of instant functional solid beverage containing black fungus

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Publication number Priority date Publication date Assignee Title
CN101946893A (en) * 2010-09-26 2011-01-19 方书义 Snack dry tremella and preparation method thereof
CN102669785A (en) * 2012-05-09 2012-09-19 陕西恒康生物科技有限公司 Preparation method of instant functional solid beverage containing black fungus

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