48results about How to "Promote quality and efficiency" patented technology

The invention discloses a method for purifying and rejuvenating local varieties of Job's tears and selecting new varieties, comprising the following steps: (1) selection of original species; (2) first year: seed selection nursery; (3) second year: (4) The third year: selection garden; (5) The fourth year: Yield testing garden; (6) The fifth year: Seed multiplication; It is a purified and rejuvenated strain with compact size, good quality and strong stress resistance. In addition, parent selection, hybridization, aggregation hybridization or backcrossing, or local varieties selection and breeding of mutant strains, identified genetically stable strains, can breed new varieties of Coix. The invention can improve the speed and efficiency of the purification and rejuvenation of the coix local varieties and the selection of new varieties, ensure the genetic stability of the coix variety in production, and significantly improve the quality and stress resistance.

The invention discloses a method for preparing blood glucose reducing peptides from flammulina velutipes. The method includes steps of mixing flammulina velutipes dry powder and sodium hydroxide aqueous solution with the mass concentration of 0.4%-0.6%, then carrying out water bath treatment, regulating a pH (potential of hydrogen) value of supernatant until the pH value of the supernatant reaches 4+ / -0.5, and then freezing and centrifuging the supernatant to obtain precipitates; adding water and neutral protease into the precipitates, carrying out enzymatic hydrolysis reaction under oscillation conditions, preserving heat of obtained enzymatic hydrolysis reaction products at the temperatures of 95-100 DEG C for 10-15 min, then naturally cooling the enzymatic hydrolysis reaction products until the temperatures of the enzymatic hydrolysis reaction products reach the room temperature and centrifuging the enzymatic hydrolysis reaction products to obtain enzymatic hydrolysate; carrying out ultra-filtration treatment on the enzymatic hydrolysate to obtain ultra-filtration enzymatic hydrolysate; carrying out spray drying on the ultra-filtration enzymatic hydrolysate to obtain blood glucose reducing peptide powder from the flammulina velutipes.

The invention provides a method for evaluating the nutritional status of crops in latent nutrient deficiency period by using sensitive metabolites, comprising the following steps: dividing the nitrogen, phosphorus and potassium test areas, adopting standard crop fertilization formulas, and forming three different types of nitrogen, nitrogen, and excess Samples of phosphorus and potassium nutritional levels; use liquid chromatography-mass spectrometry to obtain non-target metabolomics data; screen sensitive metabolites significantly related to crop nitrogen, phosphorus, and potassium; The relative quantification and normalization of the substances were carried out, and the corresponding relationship between the nutritional elements and levels and the label was established. The samples were divided into a calibration set and a verification set, and the calibration set nitrogen, phosphorus, and potassium nutritional status evaluation models were respectively established; the content of sensitive metabolites was obtained. , input the nutritional status evaluation model to judge its nutritional status. The invention can be used for early diagnosis of nutrition level, and the timeliness and detection accuracy are obviously improved.

The invention belongs to the technical field of fish cultivation and relates to an automatic sorting device for female and male fries of Cynoglossus semilaevis and an application method thereof. The automatic sorting device for female and male fries of Cynoglossus semilaevis comprises rollers, supports, a light source control switch, a light source fixing table, a light source, an identifying platform, a fish incoming channel, an identifying channel, a retaining plate, a water inlet for the fish incoming channel, an image information acquisition and processing system, a wireless remote control, an automatic control device, a fish outgoing channel, a male fry outlet, a female fry sorting retainer, a female fry sorting retainer, and a female fry outlet. The automatic sorting device for female and male fries of Cynoglossus semilaevis allows female and male fries to be distinguished in the early farming stage of Cynoglossus semilaevis, never causes physiological stress or body surface injury to the fry, and provides increased accuracy of distinguishing female and male fries and increased survival rate. In addition, with the integration of the technical design of modern information equipment, the automatic sorting device can provide automatic distinguishing and sorting for female and male fries, female and male fries are screened more efficiently, manpower and material resources are saved greatly, and farming benefit is improved.