Abstract: An EcNc engineered strain constitutively expressing an MLH protein and the use thereof in the treatment of enteritis, belonging to the field of biopharmaceutical technology. The present disclosure provides an EcNc engineered strain constitutively expressing an MLH protein, where Escherichia coli Nissle 1917 (EcN) is used as a chassis cell, from which two cryptic plasmids are removed, followed by introducing the modified endogenous cryptic plasmids pMUT1 and/or pMUT2; the modification refers to inserting a gene encoding the MLH fusion protein formed by linking SOD and CAT via a flexible linker into pMUT1 and/or pMUT2. In the present disclosure, an engineered strain constitutively expressing a fusion protein is constructed, where the engineered strain can express a fusion protein with SOD and CAT dual enzyme activities without antibiotic stress and IPTG induction. The constructed engineered strain can be used as a live biotherapeutic microorganism for the treatment of UC diseases.

Abstract: Disclosed is a novel environmentally friendly cushioning packaging structure, including a base plate and an extendable cushioning pad, where both ends of a same side surface of the base plate are fixedly connected to two extendable ends of the cushioning pad to form an integrated structure, the cushioning pad is provided with a cushioning surface, and the base plate is provided with a fold line; the base plate is bent along the fold line toward one side of the cushioning pad and covers an outer periphery of the cushioning pad, and is bent and stretched to be in a cylindrical wrapped state, and the cushioning surface is enclosed to form a packaging cavity for accommodating a packaged article. The base plate is provided with openings at both ends in an extending direction of the fold line, and is further provided with a sealing plate for covering the openings.

Abstract: Disclosed is a novel environmentally friendly cushioning packaging structure, including a base plate and an extendable cushioning pad, where both ends of a same side surface of the base plate are fixedly connected to two extendable ends of the cushioning pad to form an integrated structure, the cushioning pad is provided with a cushioning surface, and the base plate is provided with a fold line; the base plate is bent along the fold line toward one side of the cushioning pad and covers an outer periphery of the cushioning pad, and is bent and stretched to be in a cylindrical wrapped state, and the cushioning surface is enclosed to form a packaging cavity for accommodating a packaged article. The base plate is provided with openings at both ends in an extending direction of the fold line, and is further provided with a sealing plate for covering the openings.