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CN-121970815-A - Sheep colostrum composite freeze-dried powder capable of assisting in reducing blood sugar and preparation method thereof

CN121970815ACN 121970815 ACN121970815 ACN 121970815ACN-121970815-A

Abstract

The invention relates to the technical field of functional food processing, in particular to sheep colostrum composite freeze-dried powder capable of assisting in reducing blood sugar and a preparation method thereof. According to the invention, lactobacillus helveticus and lactobacillus plantarum are compounded and cooperated to carry out bioconversion on the fermentation of the sheep colostrum, so that the release of hexanal, caprylic acid and other substances which are precursor substances of the mutton smell can be reduced, the bad fishy smell of the sheep colostrum can be effectively improved in sense, and the fishy smell of the sheep colostrum can be obviously reduced from aspects of reducing the release, separating and mixing the Chinese yam and the poria cocos after fermentation, and the bad flavor can be improved. The invention adopts the sheep colostrum obtained by the composite synergistic fermentation of the lactobacillus helveticus and the lactobacillus plantarum, and the yam and the poria cocos obtained by the fermentation of the lactobacillus plantarum are compounded respectively, so that the invention has the synergistic blood sugar reducing effect, and can be used for preparing auxiliary blood sugar reducing products.

Inventors

  • HE WENQIANG
  • ZHANG LEI
  • WANG LIJIN
  • XU JIANNAN
  • ZHOU JINGSI
  • ZHOU YANRU
  • JIANG LIPING

Assignees

  • 资生活(湖南)食品研究院有限公司

Dates

Publication Date
20260505
Application Date
20260401

Claims (9)

  1. 1. The preparation method of the sheep colostrum composite freeze-dried powder capable of assisting in reducing blood sugar is characterized by comprising the following steps of: S1, respectively preprocessing Chinese yam and poria cocos; S2, respectively fermenting the sheep colostrum, the Chinese yam and the poria cocos S2.1, inoculating the sterilized goat colostrum with a composite bacterial liquid, carrying out constant-temperature standing anaerobic fermentation at 42+/-5 ℃ for 6-12 hours, cooling, refrigerating for 12-24 hours, and sterilizing to obtain a goat colostrum fermentation whole liquid; the composite bacterial liquid is compounded by lactobacillus helveticus bacterial liquid and lactobacillus plantarum bacterial liquid with the volume ratio of (1-3) (1-2), wherein the effective viable count of the lactobacillus helveticus bacterial liquid is 10 8 -10 9 CFU/ml, and the effective viable count of the lactobacillus plantarum bacterial liquid is 10 8 -10 9 CFU/ml; S2.2, inoculating lactobacillus plantarum bacterial liquid to the yam pretreated in the step S1, standing at a constant temperature of 37+/-5 ℃ for anaerobic fermentation for 18-24 hours, filtering, taking filtrate, and sterilizing to obtain yam fermentation liquor; S2.3, inoculating the poria cocos pretreated in the step S1 with lactobacillus plantarum bacterial liquid, standing at a constant temperature of 37+/-5 ℃ for anaerobic fermentation for 20-24 hours, filtering, taking filtrate, and sterilizing to obtain poria cocos fermentation liquor; s3, mixing the sheep colostrum fermentation complete liquid, the Chinese yam fermentation liquid and the poria cocos fermentation liquid obtained in the step S2 according to the volume ratio of (5-8) to (2-4) to (1-3), and homogenizing to obtain a freeze-dried base liquid; S4, freeze-drying the freeze-dried base solution, crushing and screening to obtain freeze-dried powder.
  2. 2. The method for preparing the sheep colostrum composite freeze-dried powder capable of assisting in reducing blood sugar according to claim 1, wherein the pretreatment operation of the Chinese yam in the step S1 is as follows: Peeling rhizoma Dioscoreae, cutting, mixing rhizoma Dioscoreae with water at mass ratio of 1 (3-8), pulping, sieving with 80-100 mesh sieve to obtain rhizoma Dioscoreae slurry, adding middle temperature alpha-amylase at mass ratio of 0.2-0.5%, performing enzymolysis for 30-50min, sterilizing at high temperature, inactivating enzyme, and cooling to 30-45deg.C.
  3. 3. The method for preparing the sheep colostrum composite freeze-dried powder capable of assisting in reducing blood sugar according to claim 1, wherein the pretreatment operation of the poria cocos in the step S1 is as follows: Mixing Poria powder with water at a mass volume ratio of 1 (10-20) (g/ml), sterilizing at high temperature, and cooling to 30-45deg.C.
  4. 4. The method for preparing the sheep colostrum composite freeze-dried powder capable of assisting in reducing blood sugar according to claim 2, which is characterized in that, Inoculating 3% -5% (v/v) of lactobacillus plantarum bacterial liquid into the yam pulp obtained after pretreatment in the step S2.2 according to the volume of the yam pulp, wherein the effective viable count of the lactobacillus plantarum bacterial liquid is 10 8 -10 9 CFU/ml.
  5. 5. The method for preparing the sheep colostrum composite freeze-dried powder capable of assisting in reducing blood sugar according to claim 3, wherein S2.3 inoculates the poria cocos obtained after the pretreatment of the step S1 with lactobacillus plantarum bacterial liquid according to the volume of 1% -2% (v/v), and the effective viable count of the lactobacillus plantarum bacterial liquid is 10 8 -10 9 CFU/ml.
  6. 6. The method for preparing the sheep colostrum composite freeze-dried powder capable of assisting in reducing blood sugar according to claim 1, wherein the freeze-drying in S4 comprises the following steps: ① Prefreezing Pre-freezing the freeze-dried base solution below-40 ℃ until the freeze-dried base solution is completely frozen; ② Vacuum freeze drying Under vacuum, heating from (-30 to-20deg.C) to 0deg.C at 0.5-1 deg.C/min, sublimation drying for 12-24 hr, heating to 20-30deg.C at 0.5-1 deg.C/min, and analytical drying for 8-12 hr.
  7. 7. The sheep colostrum composite freeze-dried powder prepared by the preparation method of the sheep colostrum composite freeze-dried powder capable of assisting in reducing blood sugar according to any one of claims 1 to 6.
  8. 8. The use of the sheep colostrum composite freeze-dried powder of claim 7 in preparing a product for assisting in reducing blood sugar.
  9. 9. The use according to claim 8, wherein the product is a food or a health product.

Description

Sheep colostrum composite freeze-dried powder capable of assisting in reducing blood sugar and preparation method thereof Technical Field The invention relates to the technical field of functional food processing, in particular to sheep colostrum composite freeze-dried powder capable of assisting in reducing blood sugar and a preparation method thereof. Background The sheep colostrum is rich in immunoglobulin, growth factor and high-quality protein, and has nutritive value obviously higher than that of normal milk. However, the inherent fishy smell (mainly derived from short chain fatty acids (such as hexanal, octanoic acid and the like) and certain branched chain fatty acids) limits the palatability and market acceptance of the product, and meanwhile, along with the rising incidence of metabolic diseases such as diabetes and the like, the development of natural foods with the function of assisting in regulating blood sugar has important market value and social significance. However, at present, no sheep colostrum composite product which can effectively remove the fishy smell of the sheep colostrum and has the function of assisting blood sugar exists, so that the added value and market acceptance of the sheep colostrum are improved. Disclosure of Invention Based on the background, the sheep colostrum composite freeze-dried powder capable of assisting in reducing blood sugar and the preparation method thereof can be used for fermenting and bioconverting sheep colostrum, chinese yam and poria cocos through reasonable strains to generate active substances capable of reducing blood sugar, and can be used for cooperatively degrading or masking fishy smell substances of the sheep colostrum in a targeted manner from the aspects of smell and taste, so that bad flavor is improved. The technical scheme provided by the invention is as follows: a preparation method of sheep colostrum composite freeze-dried powder capable of assisting in reducing blood sugar comprises the following steps: S1, respectively preprocessing Chinese yam and poria cocos; S2, respectively fermenting the sheep colostrum, the Chinese yam and the poria cocos S2.1, inoculating the sterilized goat colostrum with a composite bacterial liquid, carrying out constant-temperature standing anaerobic fermentation at 42+/-5 ℃ for 6-12 hours, cooling, refrigerating for 12-24 hours, and sterilizing to obtain a goat colostrum fermentation whole liquid; the composite bacterial liquid is compounded by lactobacillus helveticus bacterial liquid and lactobacillus plantarum bacterial liquid with the volume ratio of (1-3) (1-2), wherein the effective viable count of the lactobacillus helveticus bacterial liquid is 10 8-109 CFU/ml, and the effective viable count of the lactobacillus plantarum bacterial liquid is 10 8-109 CFU/ml; S2.2, inoculating lactobacillus plantarum bacterial liquid to the yam pretreated in the step S1, standing at a constant temperature of 37+/-5 ℃ for anaerobic fermentation for 18-24 hours, filtering, taking filtrate, and sterilizing to obtain yam fermentation liquor; S2.3, inoculating the poria cocos pretreated in the step S1 with lactobacillus plantarum bacterial liquid, standing at a constant temperature of 37+/-5 ℃ for anaerobic fermentation for 20-24 hours, filtering, taking filtrate, and sterilizing to obtain poria cocos fermentation liquor; s3, mixing the sheep colostrum fermentation complete liquid, the Chinese yam fermentation liquid and the poria cocos fermentation liquid obtained in the step S2 according to the volume ratio of (5-8) to (2-4) to (1-3), and homogenizing to obtain a freeze-dried base liquid; S4, freeze-drying the freeze-dried base solution, crushing and screening to obtain freeze-dried powder. Further, the pretreatment operation of yam in step S1 is as follows: Peeling rhizoma Dioscoreae, cutting, mixing rhizoma Dioscoreae with water at mass ratio of 1 (3-8), pulping, sieving with 80-100 mesh sieve to obtain rhizoma Dioscoreae slurry, adding middle temperature alpha-amylase at mass ratio of 0.2-0.5%, performing enzymolysis for 30-50min, sterilizing at high temperature, inactivating enzyme, and cooling to 30-45deg.C. Further, the pretreatment operation of Poria in step S1 is as follows: Mixing Poria powder with water at a mass volume ratio of 1 (10-20) (g/ml), sterilizing at high temperature, and cooling to 30-45deg.C. Further, the yam pulp obtained after pretreatment in the step S2.2 is inoculated with lactobacillus plantarum bacterial liquid according to the volume of 3% -5% (v/v), and the effective viable count of the lactobacillus plantarum bacterial liquid is 10 8-109 CFU/ml. Further, S2.3 inoculating the poria cocos pretreated in the step S1 with lactobacillus plantarum bacterial liquid according to the volume of the poria cocos, wherein the effective viable count of the lactobacillus plantarum bacterial liquid is 10 8-109 CFU/ml. Further, the freeze-drying in S4 includes the steps of: ① Prefreezing Pre-freezing the