Methods of detecting listeria from an environmental sample
申请人:Neogen Corporation
公开号:US10781494B2
公开(公告)日:2020-09-22
The present invention relates to the identification of microorganisms from an environmental sample, and in particular to the rapid identification of Listeria spp. The methods and kits described herein provide a method of detecting Listeria spp. without the need for an enrichment step.
Preparation of lipase with improved ester synthesis activity by using surfactants
申请人:Jiangnan University
公开号:US11214778B2
公开(公告)日:2022-01-04
The present disclosure discloses a method for preparing lipase with high ester synthesis activity by using surfactant, belonging to the field of enzyme engineering. The present disclosure provides a method for obtaining a lipase with high ester synthesis activity by adding different surfactants with different concentrations in a lipase aqueous solution and then freeze-drying. The lipase meets the requirement in non-aqueous catalysis. Mixing a variety of lipase with no ester synthesis activity or low activity at suitable concentration and an appropriate concentration of the surfactant in the solution can produces lipases with significantly improved ester synthesis activity, meanwhile changing the hydrolytic activity of the lipase. Increased ester synthesis activity makes lipase more suitable for industrial applications.
Low-viscosity, high concentration evolocumab formulations and methods of making the same
申请人:AMGEN INC.
公开号:US11464857B2
公开(公告)日:2022-10-11
Provided herein are formulations of PCSK9-binding polypeptides, such as those comprising evolocumab, that comprise N-acetyl arginine and have reduced viscosities when compared to formulations lacking N-acetyl arginine. Provided herein are also methods of formulating such compositions that are advantageous in that they conserve certain components. Such formulations comprising PCSK9-binding polypeptides can be administered to patients to treat and/or prevent PCSK9-related diseases, conditions, and disorders.