39 results about "Aspergillus sydowi" patented technology

The invention provides aspergillus niger MJ for producing hydrolase and an application of the aspergillus niger in the preparation of mushroom zymolyte. A bacterial strain is preserved in China Center for Type Culture Collection, the address of the China Center for Type Culture Collection is Wuhan University in Wuhan, China, the postcode is 430072, the preservation number is CCTCC NO:M2013329, and the preservation date is July 11th, 2013. The aspergillus niger has the beneficial effects that (1) the aspergillus niger is a common bacterial strain in the food industry, harmful substances can not be produced, and the use is safe; (2) the fermentation process of the hydrolase is simple, and the production cost of the enzyme is low; (3) by adopting the composite hydrolase prepared by virtue of fermentation of the aspergillus niger MJ, the hydrolyzation efficiencies of protein, nucleic acid and polysaccharide in mushrooms are high; (4) poisonous and harmful raw materials are not used in a production process, and the environment is protected and not polluted; (5) a product is natural and green, the taste is delicious, the nutritions are rich, the health care value is high, and the application field is wide.

The invention discloses aspergillus niger and a method for catalytically producing fructo-oligosaccharide by virtue of whole-cells of aspergillus niger. The aspergillus niger FOS-0620 is an aerobe, has black spores and milk-white hyphae, and is collected in China General Microbiological Culture Collection Centre (CGMCC for short) on September 28, 2012. The method for catalytically producing fructo-oligosaccharide by virtue of whole-cells of aspergillus niger comprises the following steps of: (1) preparing aspergillus niger whole-cells by virtue of the aspergillus niger FOS-0620 according to claim 1; and (2) catalytically producing fructo-oligosaccharide by virtue of the aspergillus niger whole-cells. The product obtained by the method disclosed by the invention is detected that the content (occupying total solids) of the fructo-oligosaccharide is not less than 50% via high-pressure liquid chromatography; and the method disclosed by the invention is simple in process, convenient to operate, high in enzymatic activity, high in conversion efficiency, and important in industrial value.

An object is to provide means for precisely treating pneumonia caused by intracellular parasite, protozoa, and / or fungus. A pharmaceutical composition for pneumonia, comprising a compound represented by the following general formula (1) as an active ingredient:(In the formula, R represents a halogen atom or a hydrogen atom, and X represents a halogen atom.)

The invention relates to the field of bacteriostats, and concretely relates to a seaweed endophytic fungus-derived natural indocyano alkaloid compound, a preparation method thereof, and an applicationthereof in bacteriostasis. The specific structural formula of the compound is represented by formula (I). The preparation method comprises the following steps: inoculating a fungal culture medium with the seaweed endophytic fungus Aspergillus versicolor DL-29, carrying out fermentation culturing, and separating and purifying the obtained fermentation product to obtain the indocyano alkaloid compound of the formula (I). Bacteriostatic activity experiments of the alkaloid compound show that the diameter of the inhibition zone of the compound at 30 [mu]g / tablet is 7 mm.

The invention discloses an aspergillus niger and its application in biological control of aflatoxins. The strain is Aspergillus niger (Aspergillus niger) RAF106 strain, the preservation date is August 27, 2014, and the preservation number is CGMCC NO.9608. No. 3, Courtyard No. 1, Beichen West Road, Chaoyang District, City. The Aspergillus niger strain screened by the present invention can greatly enhance its competitive inhibition effect under the synergistic effect of plant polyphenols. The bacterial strain not only significantly inhibits the growth and toxin production of Aspergillus flavus, but also has high efficiency and strong specificity in degrading the aflatoxin, and has high industrial application value. For aflatoxin-contaminated agricultural products or feed, the aflatoxin can be decomposed by fermentation of the strain, and the aflatoxin in toxic corn is reduced by 80.7% after 48 hours of fermentation.

The invention discloses a method for evaluating the activity of aspergillus niger mouldy bran spore. The method comprises the following steps: (1) washing cultured aspergillus niger mouldy bran spore with a phosphate buffer liquid, and filtering, thereby obtaining aspergillus niger mouldy bran spore suspension; (2) adding 0.055% (v / v) of Tween 80, and performing ultrasonic treatment, thereby obtaining uniformly dispersed monospore suspension, and adjusting the concentration of the monospore suspension to be 10<6>-10<7> pieces / mL; (3) preparing a 8-14mg / L methylene blue solution from the phosphate buffer liquid; (4) uniformly mixing the solutions of the steps (2) and (3) according to a ratio (v / v) of 1:1, sealing to react for 420 seconds, and scanning an absorbancy-time curve at the wavelength of 663nm; (5) testing the primary absorbancy and the absorbancy after the reaction is completed, of a reaction system, and representing the activity of cells according to the change of the absorbancy. By adopting the method, the culture time of mature seeds can be effectively shortened, the raw material utilization rate can be increased, and the technique is also applicable to evaluation on the activity of other microorganism spore.