Printing equipment for certificate paper processing and use method

The invention discloses printing equipment for certificate paper processing, which comprises a printing system, the printing system is provided with a transition piece in the paper advancing direction side, one end of the transition piece is provided with a bottom plate, one side of the top end of the bottom plate is provided with an adjusting assembly, an adsorption assembly is arranged in the adjusting assembly, and one side of the adjusting assembly is provided with a cutting assembly. Groove structures are formed in the two sides of the top end of the bottom plate, rotating rods are movably arranged in the grooves, and the top ends of the rotating rods are fixedly engaged with the bottom end of the cutting assembly. Impurities adhered to the surface of the paper before the paper enters the printing structure can be effectively reduced; and meanwhile, when more impurities adhere to and are collected on the surface of the dust-sticking roller, the dust-sticking roller can be replaced, ...

High-yield saltant aspergillus N1-14' for L-malic acid and method for producing L-malic acid

An Aspergillus sp. N1-14' CCTCCM94103 is disclosed, which may be used for direct fermentation of sugar-containing raw material to produce L-malic acid with acid generating speed of 0.65-0.71g/hr, acid yield of 75-85 g/l and sugar conversion rate of 65-68% after fermenting in 20 cu.m tank for 100-120 hr. An industrial process for fermentation and extracting L-malic acid is disclosed. The product contains L-malic acid of above 99% and fumaric acid of below 0.2%.

Novel basophilic Bacillus strain and application in degumming of ramie

The basophili bacillus strain NTT33-CL301, CCTCCM 96009is isolated from soil, then passed through oriented acclimation successively by pectin and locust bean gum, and induction by rifampin, finally screened to obtain the Bacillus alcolophilus strain which can produce alkaline pectolase and alkaline mannase. This bacteria stain can be used directly in the deguming of ramie. The invented technologypossesses the advantages of short in deguming period, high in deguming efficiency, stable inenzyme activity and low in treatment cost etc.

Frequent pathogenic bacteria multiple PCR rapid detecting kit for domestic animal meat and aquatic product and its detecting method

Immunomagnetic bead kit for purifying aflatoxin as well as use method and application of immunomagnetic bead kit

The invention relates to the technical field of biological materials, and particularly discloses an immunomagnetic bead kit for purifying aflatoxin as well as a use method and application of the immunomagnetic bead kit. The immunomagnetic bead kit for purifying aflatoxin provided by the invention comprises cyanogen bromide activated immunomagnetic beads, an aflatoxin monoclonal antibody, a coupling buffer solution and a sealing reagent, wherein the cyanogen bromide activated immunomagnetic bead is a cyanogen bromide activated magnetic microsphere, and the surface of the magnetic microsphere is coated with an agarose polymer layer; the aflatoxin monoclonal antibody is obtained by secreting hybridoma cells; the invention further provides a use method of the immunomagnetic bead kit for purifying aflatoxin and application of the immunomagnetic bead kit in detection of grains, nuts, traditional Chinese medicinal materials and feed. The immunomagnetic bead kit for purifying aflatoxin provided ...

Method for synthesizing tertiary amine by using alpha-amino acid as raw material

The invention provides a preparation method of a tertiary amine. The preparation method comprises the following steps of: in the presence of a metal catalyst and an organic or inorganic base, reacting a natural or non-natural alpha-amino acid with an alcohol in an organic solvent to prepare the tertiary amine, wherein the metal catalyst is [Cp*IrCl2]2, the inorganic base is selected from potassium hydroxide, potassium carbonate, sodium carbonate, sodium bicarbonate, sodium hydroxide, potassium phosphate, cesium carbonate and potassium bicarbonate, and the organic base can be sodium methylate or potassium tert-butoxide. The synthesis method has the characteristics that the raw materials are easily available, the operation is simple and convenient, the reaction conditions are mild, the yield is high, the aftertreatment is simple, and the environment pollution is hardly caused; therefore, the synthesis method is suitable for industrial production.

High-yield saltant aspergillus N1-14' for L-malic acid and method for producing L-malic acid

Method of fast degradating pine dust rosin kind substance

A method for quickly degradating the rosin in pine dust used for culture mushrom features that the microbes able to quickly degradate, the rosin are separated out and cultured, and the cultured microbes are mixed with inorganic salt and organic substance to obtain a rosin-degradating additive.