40 results about "Fungal protease" patented technology

The present invention relates to an enzyme blend composition comprising a glucoamylase, an acid stable alpha amylase, and an acid fungal protease. The present invention is further directed to a method for producing end products such as alcohols from fermentable sugars, comprising the steps of: (a) contacting a slurry comprising a milled grain that contains starch with an alpha amylase to produce a liquefact; (b) contacting the liquefact with a glucoamylase, an acid stable alpha amylase, and an acid fungal protease, to produce fermentable sugars; and (c) fermenting the fermentable sugars in the presence of a fermenting organism to produce end products.

The present invention provides a process for the preparation of protein hydrolysate from milk protein by treating milk protein with fungal protease at a pH of 7.5-8.5, a temperature of 40±5° C. for a time period of 30 min to 2 hours, followed by heating at 65-70° C. for at least 3 min, separating the clarified supernatant by a known manner and drying the clarified liquor thus obtained to get the protein hydrolysate.

The invention is directed to methods of producing ethanol and decreasing residual starch production in a no cook fermentation comprising contacting granular starch containing substrates with a granular starch hydrolyzing enzyme, a protease, and a fermenting microorganism under suitable fermentation conditions at a temperature below the starch gelatinization temperature of the starch substrate to produce ethanol, wherein the ethanol production is increased and the amount of residual starch is decreased compared to a substantially similar method conducted without the protease.

The invention provides a dietary supplement comprising at least one flavonoid source and an enzyme, that is effective for inhibiting in vivo platelet activity and LDL cholesterol oxidation in a mammal at a dosage of about 30 mg / Kg or less. The supplement may contain flavonoid sources found in grape seed extracts, grape skin extracts, bilberry extracts, ginkgo biloba extracts or the flavonoid quercetin. The supplement may also contain fungal proteases, acid stable proteases and bromelain. The invention further provides a method for using the dietary supplement and an article of manufacture containing the supplement.

The present invention utilizes a novel enzyme mixture comprising a fungal protease or a mixture of fungal proteases with both endo- and exo-peptidase activities to hydrolyze soy protein while substantially avoiding free amino acids and low molecular weight Peptides, two substances that can impart a bitter or unpleasant flavor to hydrolysates. The hydrolyzate, more preferably the soluble soy protein it contains, can be used in food products such as high protein beverages, sports drinks, balanced nutritional drinks, juice mixes, health / nutrition bars, salad dressings, meat products , snacks, sweets, confectionery, nutritional supplements, etc. The soy protein hydrolyzate, more preferably the soluble soy protein it comprises, is particularly useful in accordance with the present invention when dosages up to about 2.5 to about 6.5 grams of soy protein per common serving of food product are desired.

The invention discloses an application of a domestic silkworm cocoon antifungal protease inhibitor in fungus prevention and a separation method of the domestic silkworm cocoon antifungal protease inhibitor. The separation method comprises the following steps: layering and cutting a silkworm cocoon into pieces, then adding 100mm of Tris-HCL buffer solution with pH of 7.5, and extracting for 30 minutes under the condition that the temperature is 37 DEG C and the rotation speed is 220 r / pm, centrifuging for 15 minutes under the rotation speed of 10000rpm, filtering supernatant by utilizing a 0.22-micrometer filter membrane, to obtain the domestic silkworm cocoon antifungal protease inhibitor. The prepared protease inhibitor can inhibit the activity of fungal protease secreted by Tritirachium album limber, can inhibit the spore germination of silkworm pathogenic fungal beauveria bassiana and still can maintain the activity after being incubated for 10 minutes in boiled water. The prepared domestic silkworm cocoon antifungal protease inhibitor belongs to the natural, high-activity and high-stability antifungal protease and is non-toxic and harmless; and meanwhile, the silk used in the method is rich in resource, and a novel way is provided for diversified development of the silk.

The present invention is related to a fungal serine protease enzyme useful in modification, degradation or removal of proteinaceous material, which enzyme comprises an amino acid sequence of the mature Tr Prb 1 enzyme having an amino acid sequence of SEQ ID NO: 10 or a variant thereof having similar activity. The serine protease is obtainable from Trichoderma. Also disclosed are nucleic acid sequences encoding said protease, such as plasmid pALK2650 comprising the nucleotide sequence SEQ ID NO: 10 of the full length enzyme deposited in E. coli RF8052 under accession number DSM 22635. Said protease is useful as an enzyme preparation applicable in detergent compositions and for treating fibers, for treating wool, for treating hair, for treating leather, for treating food or feed, or for any applications involving modification, degradation or removal of proteinaceous material at low or moderate temperature ranges.

The present invention provides a process for the preparation of protein hydrolysate from soy flour, which comprises preparing aqueous slurry of defatted soy flour having 6-12% w / v of solid content, hydrolyzing the said slurry using fungal protease at pH 7-8 and temperature 43±5° C. to get 20-40% degree of hydrolysis (DH), further hydrolyzing using papain at temperature 53±5° C. under stirring till completion of hydrolysis to 30-45% DH, inactivating residual enzyme in a known manner, separating the solids and drying the clarified supernatant thus obtained to get protein hydrolysate.

The present invention provides a process for the preparation of protein hydrolysate from milk protein by treating milk protein with fungal protease at a pH of 7.5-8.5, temperature of 40+ / -5 deg.C for a time period of 30 min to 2 hours; heating at 65-70 deg.C for at least 3 min, separating the clarified supernatant by a known manner and drying the clarified liquor thus obtained to get the protein hydrolysate.

The present invention is related to a fungal serine protease enzyme useful in modification, degradation or removal of proteinaceous material, which enzyme comprises an amino acid sequence of the mature Tr Prb1 enzyme having an amino acid sequence of SEQ ID NO: 10 or a variant thereof having similar activity. The serine protease is obtainable from Trichoderma. Also disclosed are nucleic acid sequences encoding said protease, such as plasmid pALK2650 comprising the nucleotide sequence SEQ ID NO: 10 of the full length enzyme deposited in E. coli RF8052 under accession number DSM 22635. Said protease is useful as an enzyme preparation applicable in detergent compositions and for treating fibers, for treating wool, for treating hair, for treating leather, for treating food or feed, or for any applications involving modification, degradation or removal of proteinaceous material at low or moderate temperature ranges.

The invention provides a macadamia nut beverage, which belongs to the technical field of beverage preparation. The macadamia nut beverage includes the following raw materials: macadamia nuts, xylitol, sorbitol, sucrose, citric acid, lactic acid, emulsifier, stabilizer, fungal protease, papain, aminopeptidase, lactic acid bacteria; the papaya The weight ratio of protease, aminopeptidase and lactic acid bacteria is: (0.1-0.2): (0.008-0.02): (0.2-0.3). The macadamia nut beverage is prepared through steps such as pressing, pulping, enzymatic hydrolysis, debittering, blending, homogenizing, fermenting, and sterilizing. The invention improves the nutritional content and stability of the macadamia nut drink by adopting a reinforcing system composed of papain, aminopeptidase and lactic acid bacteria.

The invention provides a dietary supplement comprising at least one flavonoid source and an enzyme, that is effective for inhibiting in vivo platelet activity and LDL cholesterol oxidation in a mammal at a dosage of about 30 mg / Kg or less. The supplement may contain flavonoid sources found in grape seed extracts, grape skin extracts, bilberry extracts, ginkgo biloba extracts or the flavonoid quercetin. The supplement may also contain fungal proteases, acid stable proteases and bromelain. The invention further provides a method for using the dietary supplement and an article of manufacture containing the supplement.

The present invention relates to a recombinant fungal host cell comprising at least one first polynucleotide encoding a polypeptide of interest; and one or more second polynucleotide encoding a fungal PepC protease, wherein the one or more second polynucleotide is operably linked to a regulated heterologous promoter, as well as a method for producing a polypeptide of interest, comprising cultivating said fungal host cell.

The invention discloses a method for preparing biological zinc from oysters. The method comprises the following steps: removing shells of living oysters, grinding fresh oyster meat by a colloid mill to obtain meat pulp, adding cellulase, fungal proteinase and lipase for enzymolysis, performing fine filtering, separating to obtain filter liquor rich in biological zinc, separating the filter liquor with a molecular sieve, performing vacuum concentration, and performing spray drying to obtain 100-150-mesh biological zinc dry powder. The biological zinc drying powder has the characteristics of being high in water solubility, uniform in molecular weight, high in biological activity, free from activation, direct and fast in absorption, free of fishy smell of the oysters, and the like, and is a good functional factor in healthy products having high additional values.