Abstract: A method for preparing 1,3-diacylglycerol by immobilizing Sn-2 lipase. The present application obtains the Sn-2 lipase adsorbed by the macroporous resin by adsorbing the Sn-2 lipase on the resin, cross-links and immobilizes the Sn-2 lipase, and obtains 1,3-diglycerol by one-step hydrolysis with the lipase. The method improves the utilization times, hydrolysis activity and specificity of the Sn-2 lipase during hydrolysis, and determines the optimal parameters by improving the experimental conditions. This makes up for the shortcomings of immobilization and realizes the one-step hydrolysis of 1,3-diacylglycerol. Under optimal conditions, the hydrolase activity of immobilized lipase CAL-A is 1937.86U/g, and the immobilization rate can reach 94.49%, and has good operational stability and storage stability. Secondly, the DAG content can reach 36.

Abstract: The present disclosure discloses a structural capacitor, a connector comprising the structural capacitor and a communication apparatus using the connector. The structural capacitor comprises a rod and a holder. The rod comprises a first section and a second section connected with the first section, and the holder comprises a through hole. The first section and the second section are fitted into the through hole to accomplish the connection between the first section and the second section in an axial direction. The connector of the present disclosure features a simple structure, a convenient manufacturing process and a low cost. The communication apparatus of the present disclosure has advantages such as a simple manufacturing process, parameters that can be easily guaranteed, a low processing cost and a stable product performance.