4results about How to "Rapid hydrolysis" patented technology

This invention discloses a foamed SiO2 enzyme array and its application in the preparation of diglyceride edible oil, belonging to the field of oleochemical technology. This invention prepares a hydrophobic foamed SiO2 carrier (MCF-C8), and loads lipases ANL, NE, and CALB separately using a physical adsorption method to prepare three functionally specific enzyme arrays. Then, a dual-coupling reaction strategy of "hydrolysis-esterification" and "glycerolysis-esterification" is constructed. ANL@MCF-C8 catalyzes the moderate hydrolysis of vegetable oil, or NE@MCF-C8 catalyzes the glycerolysis of vegetable oil, to obtain a primary diglyceride mixture. The byproduct fatty acids produced in the reaction are recovered and esterified with glycerol under the catalysis of CALB@MCF-C8 to obtain a secondary diglyceride mixture. After purification, an edible oil product with a diglyceride content of 40%~82% and a 1,3-diglyceride content of 90% is obtained. This invention achieves efficient recovery and utilization of byproduct fatty acids, improves product yield, and the enzyme array has strong stability, is easy to separate and recover, and can be reused, effectively reducing production costs.

This invention discloses a pH-responsive, self-separating, fully biodegradable lunchbox material and its preparation method, belonging to the field of biodegradable lunchbox technology. The pH-responsive, self-separating, fully biodegradable lunchbox material comprises: a starch base layer; a polylactic acid (PLA) barrier layer; and a dynamic covalent bond interface layer with a thickness of 20-50 μm located between the starch base layer and the PLA barrier layer. The dynamic covalent bond interface layer is formed by dynamic cross-linking of hydroxyl groups in starch molecules with carboxyl groups at the ends of PLA chains through borate ester bonds (B–O), wherein boric acid serves as the cross-linking medium, and the cross-linking density gradually increases from 0.3 mol / kg on the starch base layer side to 0.5 mol / kg on the PLA barrier layer side. This pH-responsive, self-separating, fully biodegradable lunchbox material helps to achieve high sealing performance during its service life, rapid self-separation after disposal, and visualization of the degradation process.

The application discloses a preparation method of an air absorption composite material with high adsorption capacity, belongs to the field of adsorption material preparation, and aims at solving the technical problem that the adsorption capacity and structural stability of the air absorption composite material in the prior art need to be further improved, and specifically comprises the following steps: stirring hybrid sol, epoxy-based silane grafted UiO-66 and modified polyether amine curing agent in a reaction kettle, heating the reaction kettle to 25-35 DEG C, and keeping the temperature and stirring for 30-60 min; and obtaining air absorption composite slurry through post-treatment; the hybrid sol, the epoxy-based silane grafted UiO-66 and the modified polyether amine curing agent are blended, then an organic-inorganic interpenetrating network is formed through epoxy-amine ring-opening addition curing, and the air absorption composite material with high adsorption capacity is obtained through segmented temperature rising activation.

This invention relates to the field of functional lipid preparation technology, specifically to an enzymatic enrichment method for high-purity microalgal glycerol glycolipids and its preparation. This invention provides an enzymatic enrichment method for high-purity microalgal glycerol glycolipids and its preparation, utilizing the substrate specificity of Candida antarctica lipase B, which selectively hydrolyzes triglycerides and phospholipids while retaining and enriching the indigestible glycerol glycolipid components. This maximizes the retention of glycerol glycolipids, resulting in high-purity microalgal glycerol glycolipid products. This provides a method for the efficient enrichment of microalgal glycerol glycolipids that is mild, environmentally friendly, simple, and yields high purity.