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CN-121971477-A - Velvet antler mushroom polysaccharide powder and preparation method thereof

CN121971477ACN 121971477 ACN121971477 ACN 121971477ACN-121971477-A

Abstract

The invention discloses a velvet antler mushroom polysaccharide powder, which is prepared by taking velvet antler mushroom polysaccharide as an active ingredient and silicon dioxide as a dispersing agent. Accordingly, a corresponding preparation method is also established, the velvet antler mushroom polysaccharide and part of silicon dioxide are firstly stirred preliminarily, then the rest silicon dioxide is added in batches, and the mixture is fully stirred to form uniform wet particles, and then the uniform wet particles are dried and crushed to obtain the velvet mushroom polysaccharide. The velvet antler mushroom polysaccharide powder product obtained by the invention can be used as a feed additive. Researches show that the velvet antler mushroom polysaccharide powder is safe to target animals and pigs at 10 times of recommended dosage, and provides a direct basis for the safe application of the velvet antler mushroom polysaccharide powder in cultivation production. The research of the invention completely provides the industrialized implementation scheme of the velvet antler mushroom polysaccharide powder from raw materials to finished products and from quality control to safety application.

Inventors

  • HE YING
  • LIN BAOJIANG
  • XU XINTING
  • Yang Xunye
  • DUAN QUNPENG
  • ZHOU YINGNING
  • LI BIN
  • QUAN CHENYU
  • XU YILAN
  • CHEN TINGTING
  • QIN YANG
  • HU TINGJUN
  • PENG YING
  • WANG WENFENG
  • SU HUIMEI
  • LU BINGXIA
  • ZHAO WEN
  • CHEN ZHONGWEI
  • WU XIANHUA
  • ZHAO SHUO
  • LIN CHANGHUA
  • QIN YIBIN

Assignees

  • 广西壮族自治区兽医研究所
  • 广西农垦永新畜牧集团盛塘牧业有限公司
  • 广西农垦永新畜牧集团西江有限公司

Dates

Publication Date
20260505
Application Date
20260303

Claims (10)

  1. 1. A velvet antler mushroom polysaccharide powder is characterized in that velvet antler mushroom polysaccharide is used as an active ingredient, and silicon dioxide is used as a dispersing agent.
  2. 2. The powder of claim 1, wherein the weight ratio of the velvet antler mushroom polysaccharide to the silicon dioxide dry matter is 4:1.
  3. 3. The preparation method of the velvet antler mushroom polysaccharide powder as claimed in claim 1, which is characterized in that velvet antler mushroom polysaccharide and partial silicon dioxide are firstly stirred preliminarily, then the rest silicon dioxide is added in batches, fully stirred to form uniform wet particles, and then dried and crushed.
  4. 4. The method according to claim 3, wherein the drying is carried out by a hot air circulation oven at 65 ℃ for 6-8 hours, the pulverizing is carried out by a high-speed pulverizer, and the powder is sieved by a 100-mesh sieve.
  5. 5. The preparation method of the velvet antler mushroom polysaccharide according to claim 3, wherein velvet antler mushroom powder is taken as a raw material, water and papain are added for water bath enzymolysis, then the temperature is raised for inactivating enzyme, water bath leaching is carried out again, after the completion, filtration is carried out, filtrate is collected, the filtrate is heated and concentrated, 95% ethanol is added into concentrated solution, ethanol precipitation is carried out, supernatant fluid is discarded, and sediment is collected.
  6. 6. The method of claim 3, wherein the weight of the added water and papain is 20 times and 3 times of the weight of the raw materials, respectively, and the volume of the added 95% ethanol is 5 times of the volume of the concentrated solution.
  7. 7. The method according to claim 3, wherein the water bath is used for enzymolysis at 55 ℃ for 3 hours, the temperature is raised to 100 ℃ for 0.5 hours, the water bath is used for leaching at 85 ℃ for 3 hours, the filtration is performed by using 100-mesh gauze, the concentration is performed to 1/20-1/10 of the original volume, and the alcohol precipitation is performed at 4 ℃ for 24 hours.
  8. 8. The use of the velvet antler mushroom polysaccharide powder of claim 1 or the velvet antler mushroom polysaccharide powder prepared by the method of claims 2-7 in a feed additive.
  9. 9. The method according to claim 8, wherein the feed additive is a pig feed additive.
  10. 10. The method for using the pig feed additive according to claim 9, wherein the pig feed additive is fed in a mixing mode, and the feed additive concentration is 2.5 g velvet antler mushroom polysaccharide powder/kg feed.

Description

Velvet antler mushroom polysaccharide powder and preparation method thereof Technical Field The invention belongs to the technical field of polysaccharide, and particularly relates to a velvet antler mushroom polysaccharide powder and a preparation method thereof. Background With the development of the livestock industry towards green, healthy and non-resistance, the development of natural feed additives which are safe, efficient and have specific physiological regulation functions becomes an important research direction in industry. The edible and medicinal fungus polysaccharide has a great potential in the development of novel feed additives because of various biological activities such as immunoregulation, antioxidation, intestinal health improvement and the like. Velvet antler mushroom (Lyophyllum decastes) is taken as a rare edible and medicinal fungus, and the fruiting body of the velvet antler mushroom is rich in polysaccharide, protein, amino acid and various trace elements. Modern pharmacological researches show that the velvet antler mushroom polysaccharide has remarkable effects of enhancing immunity, resisting tumor, reducing blood sugar, resisting oxidation and the like. In recent years, along with the maturation of the artificial cultivation technology, the development of active components of velvet mushrooms, particularly polysaccharide, as functional feed additives for improving the health level and production performance of livestock and poultry has become an emerging technical direction. At present, the extraction of the velvet antler mushroom polysaccharide has the processes of enzymolysis water extraction, response surface method optimization and the like, and partial researches try to use products such as velvet antler mushroom fungus sticks and the like for preparing animal feed, but the whole technology still has a plurality of defects. In the aspect of quality control, the conventional extraction method only has the general physicochemical index standard of the velvet antler mushroom raw material, lacks the exclusive quality standard of velvet antler mushroom polysaccharide powder, and does not define key quality control indexes such as polysaccharide content detection method, powder loading difference and the like. More importantly, the prior art does not develop stability research of polysaccharide powder, lacks cognition on influence of environmental factors such as strong light, high temperature, high humidity and the like on product quality, does not perform long-term stability verification, and in application safety, the prior feed related research does not develop safety experiments of a system aiming at specific target animals, such as lacking of special safety data aiming at pigs, and cannot guarantee application safety. These drawbacks lead to the difficulty in realizing standardized and large-scale production of the existing velvet antler mushroom polysaccharide related products, and limit the safe and efficient application of the velvet antler mushroom polysaccharide related products in animal feeds, thus urgent needs for targeted technological breakthroughs. Disclosure of Invention The invention aims to provide a velvet antler mushroom polysaccharide powder and a preparation method thereof. In order to solve the technical problems, the invention adopts the following technical scheme: the velvet antler mushroom polysaccharide powder is prepared by taking velvet antler mushroom polysaccharide as an active ingredient and silicon dioxide as a dispersing agent. The weight ratio of the velvet antler mushroom polysaccharide to the silicon dioxide is 4:1. The preparation method of the velvet antler mushroom polysaccharide powder comprises the steps of firstly, primarily stirring velvet antler mushroom polysaccharide and part of silicon dioxide, then adding the rest silicon dioxide in batches, fully stirring until uniform wet particles are formed, and then drying and crushing. Drying with hot air circulation oven at 65deg.C for 6-8 hr, pulverizing with high speed pulverizer, and sieving with 100 mesh sieve. The velvet antler mushroom polysaccharide is prepared by taking velvet antler mushroom powder as a raw material, adding water and papain for water bath enzymolysis, then heating to inactivate the enzyme, then leaching in water bath, filtering after the completion of the leaching, collecting filtrate, heating and concentrating the filtrate, adding 95% ethanol into the concentrated solution, precipitating with ethanol, discarding supernatant, and collecting precipitate (namely velvet antler mushroom polysaccharide). The weight of the added water and papain is 20 times and 3% of the weight of the raw materials respectively, and the volume of the added 95% ethanol is 5 times of the volume of the concentrated solution. The water bath enzymolysis is carried out for 3 hours at 55 ℃, the temperature is raised to 100 ℃ and kept for 0.5 hours, the water bath leaching is carried out for