CN102351580B - Method for preparing black fungus nutrient solution by utilizing food processing residues - Google Patents

Method for preparing black fungus nutrient solution by utilizing food processing residues Download PDF

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CN102351580B
CN102351580B CN 201110311521 CN201110311521A CN102351580B CN 102351580 B CN102351580 B CN 102351580B CN 201110311521 CN201110311521 CN 201110311521 CN 201110311521 A CN201110311521 A CN 201110311521A CN 102351580 B CN102351580 B CN 102351580B
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black fungus
food processing
nutrient solution
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CN102351580A (en
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刘斌
曾峰
黄一帆
陈颖
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Fujian Agriculture and Forestry University
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Abstract

The invention provides a method for preparing black fungus nutrient solution by utilizing food processing residues. The method comprises the following steps: carrying out liquid culture and solid fermentation based on carrot residue as a main raw material for solid fermentation of black fungus and black fungus as a starting strain so as to obtain a large amount of fermented black fungus mycoplasm; then digesting fermented mycoplasm with a hot water digestion method so as to obtain extract rich in black fungus polysaccharide and amino acid, and preparing the extract into a concentrated liquid, wherein when the content of a soluble solid state material in the concentrated liquid is 6%, the content of polysaccharide can reach 3.3%, and the content of amino acid can reach 1150.596mg/100mL; and finally, blending the concentrated liquid into a nutrient solution which is good in palatability. By application of the method, the food processing residues can be sufficiently utilized, natural resources can also protected, the problem that the wild black fungus resources are significantly in lack is relieved, and the black fungus nutrient solution can partially substitute for black fungus sporocarp for application.

Description

A kind of method of utilizing food processing residues to prepare black fungus nutrient solution
Technical field
The invention belongs to Edible Fungi and manufacture field, more specifically relate to a kind of method of utilizing food processing residues to prepare black fungus nutrient solution.
Background technology
Black fungus (Auricularia auricula) is under the jurisdiction of Mycophyta, Basidiomycetes, Auriculariale, Auriculariaceae, Auricularia, is famous dietotherapeutic fungi,, be a kind of macro fungi, formed by mycelium and sporophore.The functions such as that its main active ingredient Auricularia polycose has is antitumor, antithrombotic, anti-ageing, hypoglycemic, reducing blood-fat, adjusting immunity.Mycelium is the vegetative organ of black fungus, is equivalent to root, stem, the leaf of high green plants, is the main body of black fungus.The sporophore of black fungus claims again basidioma, is that we cook edible part.
Put down in writing black fungus in the Compendium of Material Medica: property is flat, and it is sweet to distinguish the flavor of; Polishing hemostasis, puckery intestines are invigorated blood circulation.In recent years, Chinese scholars has been done comparatively deep research to the pharmacological action of black fungus, and black fungus sporophore and extract thereof also have the effects such as antitumor, antimutagenic, immunomodulatory reducing blood-fat be hypoglycemic except having pharmacological action traditionally.Because wild black fungus is more and more rare, and the export trade demand is large.Study at present with a large amount of artificial fermentation's mycelium and producing application, but the liquid fermenting power consumption is high, the products therefrom activeconstituents is low, the defectives such as easy pollution.
In the product application facet, " fat-reducing food with black fungus and working method " that nationality keeps tie etc. arranged (CN1864541) and Zhang Cong etc. " preparation method of Blackfungus beverage and products thereof " (CN101317681), they all set forth the black fungus product processing technique, and the product of making is used on reducing blood-fat and the nourishing function.
At present have at black fungus liquid fermenting field technical that raw materials cost is high, fermented hypha output and mycelia Crude polysaccharides content is lower, in the tunning problem such as extraction and application effectively not.At present, there is not yet and utilize food processing residues, make the report of black fungus nutrient solution by black fungus solid state fermentation culture.
Summary of the invention
The object of the present invention is to provide a kind of method of utilizing food processing residues to prepare black fungus nutrient solution.The method is utilized food processing residues, prepares black fungus nutrient solution by solid state fermentation, and fermentation raw material is easy to get, cost is low, and solid state fermentation gained functional component is higher, is of high nutritive value.
A kind of method of utilizing the food processing residues such as carrot pomace (residuum of Radix Dauci Sativae after squeezing the juice) to prepare black fungus nutrient solution of the present invention.In the last few years, the Radix Dauci Sativae juice secondary industry developed very fast, but had also produced a large amount of wastes simultaneously, usually, after Radix Dauci Sativae is squeezed the juice, can produce the waste residue about 40%, brought disadvantageous effect for production and environment.Method of the present invention has been utilized industrial wood waste preferably, take black fungus bacterial as starting strain, carries out liquid culture, solid state fermentation, obtains a large amount of black fungus Zymocytes; Then Zymocyte is obtained to be rich in the extracting solution (containing polysaccharide, polypeptide etc.) of black fungus with the hot water extraction, and make concentrated solution; At last this concentrated solution is deployed into the good nutritive medium of palatability.
Technical scheme of the present invention is specific as follows:
The present invention includes following steps:
(1) liquid culture: take black fungus bacterial as starting strain, through the inclined-plane, one-level shaking flask enlarged culturing obtains shaking flask one-level kind;
(2) solid state fermentation: take the main raw material of carrot pomace as the black fungus solid-state fermentation culture medium, inoculation shaking flask one-level kind obtains the black fungus Zymocyte;
(3) the black fungus Zymocyte obtains to be rich in Auricularia polycose and amino acid whose extracting solution with the hot water extraction, and makes concentrated solution; At last this concentrated solution is deployed into nutritive medium.
Being formulated as of one-level shake-flask culture base in the one-level shaking flask enlarged culturing described in the step (1) wherein: Radix Dauci Sativae juice 30~100 g/L, glucose 5~30 g/L, KH 2PO 41~5 g/L, MgSO 47H 2O 0.5~1 g/L, the pH nature; Culture condition is: 80~200rpm cultivates 5~7d, 24~28 ℃ of temperature.
The fermention medium that adopts in the described solid state fermentation of step (2), its raw material forms and comprises by weight: carrot pomace 70~90%, wheat bran 10~30%; Being prepared as of fermention medium: carrot pomace and wheat bran are stirred, add water, make the water content of culture material reach 60~65%.
The described inoculation of step (2) is with 3~12%(volume with shaking flask one-level kind) inoculum size inoculation, the culture condition of solid state fermentation is: 24~28 ℃, cultivated 15~25 days, mycelia can be covered with bottle, waits to grow former base, acquisition black fungus Zymocyte.
The step of the described hot water extraction of step (3) comprises:
(1) the black fungus Zymocyte is taken out from bottle, add the water of 3~10 times of volumes, 85~100 ℃ are extracted 0.5~1h, after press filtration, obtain extracting solution A and filter residue A;
(2) add the water of 2~5 times of weight among the filter residue A, be heated to 85~100 ℃ and extract 0.5~1h, get extracting solution B and filter residue B through press filtration;
(3) united extraction liquid A and B, regulate pH to 6.0~7.0, adding is equivalent to the α~amylase of extracting solution A+B total amount 0.05%~0.1%(W/V) and heats to 55~60 ℃, keep 20~30 min, regulate immediately pH to 4.0~4.5, add again the saccharifying enzyme be equivalent to extracting solution A+B total amount 0.05%~0.1%(W/V) until solution adds till the constant basket of iodine liquid; Treat that temperature is down to 45 ℃~50 ℃, add again the polygalacturonase that is equivalent to solution 0.03%~0.05%(W/V) and keep 20~30 min, then make solution be warming up to 85~90 ℃, enzyme goes out, keep 10~15 min, get extracting solution through filter press, i.e. described Auricularia polycose and the amino acid whose extracting solution of being rich in.Employing is regulated above-mentioned pH according to lactic acid or citric acid.
Being prepared as of step (3) described concentrated solution: at 50~70 ℃, vacuum concentration to soluble solid content is 6~20%(W/V) under 0.05~0.095Mpa condition, gets concentrated solution with extracting solution.
The allotment of the described nutritive medium of step (3) comprises: concentrated solution boiled, and for subsequent use behind the centrifugal removal insoluble substance wherein; Add by weight concentrated solution 5~10%, white sugar 5~10%, citric acid 0.1~0.2%, honey 0.5~1%, the adding distil water allotment is with the while hot bottling of deployed nutritive medium, locking closure, sterilization.
Above-mentioned W/V represents that the quality of feed liquid and volume ratio are solid-liquid ratio, can represent kg/L or g/ml.
A kind of method of utilizing food processing residues to prepare black fungus nutrient solution of the present invention, process stabilizing is reliable, is suitable for suitability for industrialized production.Raw material is fully utilized, and fermentative production obtains a large amount of products, and when soluble solid was 6%, polysaccharide content can reach 3.3 ﹪, and aminoacids content can reach 1150.59mg/100mL.
With black fungus nutrient solution of the present invention, carry out amino acid and detect, it is as a result shown in the table 1.Total amino acid content is 1150.59mg/100mL, wherein 8 kinds of indispensable amino acids such as Methionin, phenylalanine, first sulphur (egg) propylhomoserin, Threonine, Isoleucine, leucine, α-amino-isovaleric acid and Histidine amount to 504.79 mg/100mL, and essential amino acids content is near half of total amino acid content.
The amino acid of table 1 black fungus nutrient solution of the present invention detects table
Figure 2011103115215100002DEST_PATH_IMAGE002
The present invention can obtain a large amount of required products by the method for solid state fermentation, utilizes food can obtain to be rich in Auricularia polycose and amino acid whose concentrated solution with enzyme auxiliary heat water extraction method, is mixed with nutritive medium.The application of this technique takes full advantage of food processing residues, can also protect the problem of natural resource, the present wild black fungus resource famine of alleviation, and Partial Replacement black fungus sporophore is used.
Embodiment
A kind of method of utilizing food processing residues to prepare black fungus nutrient solution of the present invention may further comprise the steps:
1. the liquid fermenting of black fungus:
1.1 with black fungus with potato culture (PDA substratum) activate, rejuvenation, put 24~28 ℃ of static cultivations of thermostat container 10~15 days, obtain production inclined-plane kind, put refrigerator and cooled and hide for subsequent use; The prescription of described PDA substratum is (g/L): peeling potato 200, glucose 20, agar 20, add water be settled to volume required, pH nature;
1.2 production inclined-plane kind is carried out enlarged culturing with the shake-flask culture base, obtains production shaking flask one-level kind; The prescription of described shake-flask culture base is (g/L): Radix Dauci Sativae juice 30~100 g/L, glucose 5~30 g/L, KH 2PO 41~5 g/L, MgSO 47H 2O 0.5~1 g/L, the pH nature; Culture condition is: with 60~120mL/250mL loading amount, and access 1cm 2Slant strains, rotary shaking table 80~200rpm cultivates 5~10d, 24~28 ℃ of temperature;
The solid state fermentation of 2 black fungus:
2.1 fermentative medium formula: carrot pomace: wheat bran (W/W)=9:1~7:3; The water content of described carrot pomace is about 10%~14%, adds water to water content in the substratum and is about 60~65%.
2.2 the spice bottling: carrot pomace and wheat bran are fully mixed evenly, and every kilogram of siccative adds 1.0~1.2 kilograms in water, and the water content of culture material is reached about 60~65%.Bottled bottling to the shoulder (2/3), in the center tie a tapered hole material, sealing.
2.3 disinfection inoculation: 121 ℃ of autoclavings, 30min~40min, to be cooled, production shaking flask one-level kind is inoculated with 3~12%(V/V) inoculum size.Place 24~28 ℃, cultivated about 15~25 days, mycelia can be covered with bottle, waits to grow former base, gets Zymocyte.
The preparation of 3 concentrated solutions:
3.1 Zymocyte is taken out from bottle, adds three to the long-pending water of decaploid.85~100 ℃ are extracted 1h, behind filter press, obtain extracting solution A and are rich in the filter residue A of mycelia;
3.2 with the water of 2~5 times of weight of filter residue A adding, be heated to 85~100 ℃ and extract 0.5~1h, get extracting solution B and filter residue B through filter press;
3.3 united extraction liquid A and B, regulate pH to 6.0~7.0, adding is equivalent to the α~amylase of extracting solution 0.05%~0.1%(W/V) and heats to 55~60 ℃, keep 20~30 min, regulate immediately pH to 4.0~4.5, add again and be equivalent to vat liquor 0.05%~0.1% saccharifying enzyme until solution adds till the constant basket of iodine liquid.Treat that temperature is down to 45 ℃~50 ℃, add again the polygalacturonase that is equivalent to solution 0.03%~0.05%(W/V) and keep 20~30 min that make solution be warming up to 85~90 ℃, the enzyme that goes out is kept 10~15 min, gets extracting solution C through filter press again; Enzyme is gentle to substrate-function, and food can be clarified and macromolecular substance is hydrolyzed into small-molecule substance concentrated solution with enzyme, and the small molecules nutritive substance is easier to be absorbed for organism.
Above-mentioned two place's pH regulator can adopt lactic acid or citric acid.
3.4 extracting solution C is in 50~70 ℃, it is 6~20% that 0.05~0.095MPa cryogenic vacuum is concentrated into soluble solid, gets concentrated solution.Adopt the cryogenic vacuum concentration technique to keep better nutritive substance, reduced the destruction to nutritive substance.
4. the modulation of nutritive medium:
4.1 described concentrated solution is boiled, behind the centrifugal removal insoluble substance wherein, add white sugar 5~10% by weight (W/W), citric acid 0.1~0.2%, honey 0.5~1%, surplus are distilled water, allotment, while hot (75~85 ℃) bottling, locking closure, the sterilization of deployed nutritive medium is product through after the assay was approved, the formula of water dip sterilization is: 5 '~10 '/100 ℃.
For fully disclosing a kind of method of utilizing food processing residues to prepare black fungus nutrient solution of the present invention, be illustrated below in conjunction with embodiment.
Embodiment 1: a kind of method of utilizing food processing residues to prepare black fungus nutrient solution may further comprise the steps:
1. the liquid fermenting of black fungus:
1.1 with black fungus with potato culture (PDA substratum) activate, rejuvenation, put the static cultivation of (28 ± 1) ℃ thermostat container 15 days, obtain production inclined-plane kind, then put refrigerator and cooled and hide for subsequent use;
1.2 production inclined-plane kind is carried out enlarged culturing with the shake-flask culture base, obtains production shaking flask one-level kind; The prescription of described shake-flask culture base is (g/L): Radix Dauci Sativae juice 60, glucose 20, KH 2PO 41, MgSO 47H 2O 0.5, add water be settled to volume required, pH nature; Its culture condition is: with the 160mL/500mL loading amount, access about 1cm 2Slant strains, rotary shaking table 140rpm cultivates 8d, temperature (28 ± 1) ℃;
1.3 the solid-state fermentation culture medium of black fungus: carrot pomace 450g, wheat bran 50g, water.
1.4 the spice bottling: carrot pomace and wheat bran are fully mixed evenly, add water, and every kilogram of siccative adds 1.0~1.2 kilograms in water, and the water content of culture material is reached about 60~65%.Bottled bottling to the shoulder (2/3), in the center tie a tapered hole material, sealing.
1.5 disinfection inoculation: 121 ℃ of autoclavings, 30min~40min, to be cooled, production shaking flask one-level kind is inoculated with 3~12% inoculum size.Place 24~28 ℃, cultivated about 15~25 days, mycelia can be covered with bottle, gets Zymocyte.
The preparation of 2 concentrated solutions:
2.1 fermented product is taken out from bottle, add the long-pending pure water of triploid, 90 ℃ are extracted 1h, behind filter press, obtain extracting solution A and are rich in the filter residue A of mycelia;
2.2 with the water of 3 times of weight of filter residue A adding, be heated to 90 ℃ and extract 0.5h, get extracting solution B and filter residue B through filter press.
2.3 united extraction liquid A and B, with newborn acid for adjusting pH to 6.5, add and to be equivalent to vat liquor 0.05%(W/V) α~amylase heat to 60 ℃, keep 20 min, use immediately newborn acid for adjusting pH to 4.5, add again and be equivalent to vat liquor 0.05% saccharifying enzyme until solution adds till the constant basket of iodine liquid.Treat that temperature is down to 50 ℃, add again the polygalacturonase that is equivalent to solution 0.03%~0.05%(W/V) and keep 20min that make solution be warming up to 85 ℃, the enzyme that goes out is kept 15 min, gets extracting solution C through filter press again;
2.4 extracting solution C is in 60 ℃, it is 6% that 0.05~0.095MPa cryogenic vacuum is concentrated into soluble solid, gets concentrated solution; When soluble solid was 6%, polysaccharide content can reach 3.3 ﹪, and aminoacids content can reach 1150.59mg/100mL.
3. the preparation of nutritive medium
Described concentrated solution is boiled, behind the centrifugal removal insoluble substance wherein, add white sugar 5% by weight (W/W), citric acid 0.1%, honey 0.5%, allotment, with while hot (75~85 ℃) bottling of deployed nutritive medium, locking closure, sterilization (10 '/100 ℃), be product through after the assay was approved.The products obtained therefrom sweet and sour taste contains abundant polysaccharide, amino acid and mineral element etc.

Claims (8)

1. method of utilizing food processing residues to prepare black fungus nutrient solution is characterized in that: said method comprising the steps of:
(1) liquid culture: take black fungus bacterial as starting strain, through the inclined-plane, one-level shaking flask enlarged culturing obtains shaking flask one-level kind;
(2) solid state fermentation: take the main raw material of carrot pomace as the black fungus solid-state fermentation culture medium, inoculation shaking flask one-level kind obtains the black fungus Zymocyte;
(3) the black fungus Zymocyte obtains to be rich in Auricularia polycose and amino acid whose extracting solution with the hot water extraction, and makes concentrated solution; At last this concentrated solution is deployed into nutritive medium.
2. the method for utilizing food processing residues to prepare black fungus nutrient solution according to claim 1 is characterized in that: being formulated as of one-level shake-flask culture base in the one-level shaking flask enlarged culturing described in the step (1): Radix Dauci Sativae juice 30~100 g/L, glucose 5~30 g/L, KH 2PO 41~5 g/L, MgSO 47H 2O 0.5~1 g/L, the pH nature; Culture condition is: 80~200rpm cultivates 5~7d, 24~28 ℃ of temperature.
3. the method for utilizing food processing residues to prepare black fungus nutrient solution according to claim 1, it is characterized in that: the fermention medium that adopts in the described solid state fermentation of step (2), its raw material forms and comprises by weight: carrot pomace 70~90%, wheat bran 10~30%; Being prepared as of fermention medium: carrot pomace and wheat bran are stirred, add water, make the water content of culture material reach 60~65%.
4. the method for utilizing food processing residues to prepare black fungus nutrient solution according to claim 1, it is characterized in that: the described inoculation of step (2) is that shaking flask one-level kind is inoculated take volume ratio as 3~12% inoculum size, the culture condition of solid state fermentation is: 24~28 ℃, cultivated 15~25 days, mycelia can be covered with bottle, wait to grow former base, obtain the black fungus Zymocyte.
5. the method for utilizing food processing residues to prepare black fungus nutrient solution according to claim 1, it is characterized in that: the step of the described hot water extraction of step (3) comprises:
(1) the black fungus Zymocyte is taken out from bottle, add the water of 3~10 times of volumes, 85~100 ℃ are extracted 0.5~1h, after press filtration, obtain extracting solution A and filter residue A;
(2) add the water of 2~5 times of weight among the filter residue A, be heated to 85~100 ℃ and extract 0.5~1h, get extracting solution B and filter residue B through press filtration;
(3) united extraction liquid A and B, regulate pH to 6.0~7.0, adding is equivalent to α~amylase of extracting solution A+B total amount 0.05%~0.1%W/V and heats to 55~60 ℃, keep 20~30 min, regulate immediately pH to 4.0~4.5, add again the saccharifying enzyme be equivalent to extracting solution A+B total amount 0.05%~0.1%W/V until solution adds till the constant basket of iodine liquid; Treat that temperature is down to 45 ℃~50 ℃, add again the polygalacturonase that is equivalent to solution 0.03%~0.05%W/V and keep 20~30 min, then make solution be warming up to 85~90 ℃, enzyme goes out, keep 10~15 min, get extracting solution through filter press, be i.e. described Auricularia polycose and the amino acid whose extracting solution of being rich in.
6. the method for utilizing food processing residues to prepare black fungus nutrient solution according to claim 5 is characterized in that: adopt according to lactic acid or lemon acid for adjusting pH.
7. the method for utilizing food processing residues to prepare black fungus nutrient solution according to claim 1, it is characterized in that: being prepared as of step (3) described concentrated solution: with extracting solution at 50~70 ℃, 0.05 vacuum concentration to soluble solid content is 6~20%W/V under the~0.095Mpa condition, gets concentrated solution.
8. the method for utilizing food processing residues to prepare black fungus nutrient solution according to claim 1, it is characterized in that: the allotment of the described nutritive medium of step (3) comprises: concentrated solution is boiled, for subsequent use behind the centrifugal removal insoluble substance wherein; Add by weight concentrated solution 5~10%, white sugar 5~10%, citric acid 0.1~0.2%, honey 0.5~1%, the adding distil water allotment is with the while hot bottling of deployed nutritive medium, locking closure, sterilization.
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CN108314504A (en) * 2018-05-10 2018-07-24 林少佳 A kind of nutrient liquid fertilizer and preparation method thereof
CN108640730A (en) * 2018-05-10 2018-10-12 林少佳 A kind of ammino acid liquid fertilizer and preparation method thereof
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CN110089733A (en) * 2019-05-15 2019-08-06 徐州工业职业技术学院 A method of black fungus nutrient solution is prepared using food processing residues
CN112971118B (en) * 2021-03-03 2022-09-06 陕西三八妇乐特医食品有限公司 Preparation method of black fungus fermented nutritional product

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