40 results about "Irpex lacteus" patented technology

The invention discloses a strain of Irpex lacteus, named Irpex lacteus (Irpex lacteus) PR2, which has been preserved in the General Microbiology Center of China Microbiological Culture Collection Management Committee, referred to as CGMCC, and the address is: Beichen, Chaoyang District, Beijing No. 3, No. 1 Yard, West Road, Institute of Microbiology, Chinese Academy of Sciences, strain preservation number is CGMCC NO.13190. The present invention is the first time to isolate and purify a kind of R. albicans from the root of wild blueberry in Daxing'an Mountains. It uses liquid aerobic fermentation to obtain a large number of hyphae of R. albicans, uses ethanol as the extraction solvent, and obtains it through ultrasonic extraction. Natural substances that grow crop roots, improve stress resistance, promote flowering, increase yield and crop quality, are conducive to the further development of natural compounds with ultra-high life-promoting activities; and no three wastes are generated during the entire production process, which is cost-effective and meets the requirements of Social needs for environmental protection and food safety production.

The present invention provides for heterologous expression of polypeptides encoded by wild-type and codon-optimized cbh2 genes from the organisms Cochliobolus heterostrophus, Gibberella zeae, Irpex lacteus, Volvariella volvacea, and Piromyces sp. in host cells, such as the yeast Saccharomyces cerevisiae. The expression in such host cells of the corresponding genes, and variants and combinations thereof, result in improved specific activity of the expressed cellobiohydrolases. Thus, such genes and expression systems are useful for efficient and cost-effective consolidated bioprocessing systems.

The invention relates to the field of bio-medicine, and in particular to a huperzine A derivative which is obtained by conducting microbial transformation on huperzine A by virtue of irpex lacteus ZJUT-HS39 and is novel in structure, wherein the huperzine A derivative is shown as formula (1) (as shown in the Description). According to the preparation method of the huperzine A derivative provided by the invention, the huperzine A derivative is prepared by the following steps: inoculating a fermentation medium with the irpex lacteus, and meanwhile, adding the huperzine A as a substrate; conducting fermentation culture under conditions of 25-28 DEG C and 180rpm; and separating and purifying fermentation liquid. The huperzine A derivative provided by the invention, as a novel compound, is novel in structure; and up to now, there is no natural plant extracting method or chemical structure modifying method suitable for the preparation of the derivative. The preparation method provided by theinvention has the advantages of being simple in fermentation conditions, easy for culture of a strain, high in transformation rate and the like; and the preparation method is conducive to subsequentindustrial development.

The present invention provides the use of A. albicans in the preparation of hypoxia-resistant health care products. The extract of A. albicans is prepared by fermentation, water extraction, alcohol precipitation and freeze-drying. Animal experiments have proved to have significant Resistant to hypoxia. The preparation method of the invention is simple, the cost is low, the toxic and side effects are small, the hypoxia-resistant effect is remarkable, and it is suitable for the preparation of hypoxia-resistant health food or pharmaceutical preparation.

The invention provides an application of irpex lacteus in preparing anti-fatigue healthy products. The irpex lacteus extract is prepared by fermentation, water extraction, alcohol sedimentation and lyophilizing methods. Animal experiments prove that the irpex lacteus has a remarkable anti-fatigue effect. The irpex lacteus has the advantages of simple preparation method, low cost, small toxic and side effect and remarkable anti-fatigue effect, and is suitable for preparation of anti-fatigue healthy products.

The invention relates to new bacterial strains capable of fermenting potato dregs to prepare active dietary fiber——Irpex lacteus PCV1 and Schizophyllum commune SCF1, and a method for synthesizing active dietary fiber by using them to degrade and transform potato dregs. A kind of bacterium PCV1, belonging to Polyporaceae, Polyporaceae, and genus Racula, which was preserved in China Common Microorganism Culture Collection and Management Center on July 6, 2016. The deposit number is CGMCC NO.12529. A Schizophyllum SCF1, belonging to the order Agaricaceae, the family Schizophyllum, and the genus Schizophyllum, the strain was preserved in the China General Microorganism Culture Collection and Management Center, and the preservation time was July 06, 2016. The number is CGMCC NO.12530. The method is to first insert the above-mentioned Raketooth albicans PCV1 into a liquid fermentation medium containing potato dregs, bran and inorganic salts for fermentation and culture, inactivate the fermentation liquid after the cultivation, and then insert The schizophyllum SCF1 is fermented and cultured, and the final fermentation product is homogenized to obtain an active dietary fiber product.

The invention belongs to the field of biological feed, in particular to a method for synergistically degrading and fermenting wheat straw into high-quality biological feed. First, the lignin peroxidase gene from R. albicans was optimized and introduced into the defective Schizosaccharomyces pombe to obtain the lignin peroxidase-Schizophrenia pombe recombinant engineered strain; The strains were combined with Neurospora crassa, Lactobacillus fermentum, Candida rugugenens, and S.pombe‑pREP‑mnp fermentation strains producing manganese peroxidase, and added glucose, nitrogen source, laccase and glucose oxidase, and small Molecular substances are used to synergize bacteria and enzymes to ferment straw to obtain high-quality biological feed. The method rationally utilizes agricultural waste, promotes the conversion of lignocellulose in straw, increases the true protein content in the straw feed, degrades the lignocellulose content therein, significantly improves the quality and nutritional value of the fermented feed in a short time, and obtains high-quality straw fermented feed.

The present invention relates to albicans LL210, its application and biocontrol agent. The Irpex lacteus LL210 provided by the present invention is classified as Irpex lacteus and has a preservation number of CGMCC No. 21057. The strain is isolated from tomato leaves and is non-toxic and non-pathogenic. The plate confrontation test shows that the strain can effectively inhibit the mycelium growth and spore germination of Botrytis cinerea and Phytophthora infestans, and can be used to antagonize plant pathogenic fungi Botrytis cinerea and / or Phytophthora. The present invention utilizes the biocontrol fungus agent prepared by the albicans LL210 to prevent and control tomato diseases, and the control effects on tomato gray mold and late blight respectively reach 81.35% and 87.68%, and have good disease control effects and are compatible with the environment Well, it provides a new microbial resource for the biological control of plant diseases such as tomato.