Abstract: The present disclosure discloses a method for isolating and purifying Lactobacillus rhamnosus ZFM216 bacteriocin, the method including the following steps: preparing L. rhamnosus ZFM216 fermentation supernatant; treating the fermentation supernatant with macroporous adsorption resin method to obtain a crude protein extract; isolating the crude protein extract by gel chromatography to obtain a preliminary purified protein solution; and then performing purification by reversed-phase high performance liquid chromatography (HPLC) to obtain an L. rhamnosus ZFM216 bacteriocin solution. The present disclosure further provides use of the L. rhamnosus bacteriocin in anti-Staphylococcus aureus.

Abstract: The present disclosure discloses a method for isolating and purifying Lactobacillus rhamnosus ZFM216 bacteriocin, the method including the following steps: preparing L. rhamnosus ZFM216 fermentation supernatant; treating the fermentation supernatant with macroporous adsorption resin method to obtain a crude protein extract; isolating the crude protein extract by gel chromatography to obtain a preliminary purified protein solution; and then performing purification by reversed-phase high performance liquid chromatography (HPLC) to obtain an L. rhamnosus ZFM216 bacteriocin solution. The present disclosure further provides use of the L. rhamnosus bacteriocin in anti-Staphylococcus aureus.

Abstract: A guide rail beam (10), a track beam unit (100), and a track beam (1000) for a rail vehicle (7) are disclosed. The guide rail beam (10) includes a fixing plate (1), a flange plate (2), a web plate (3), and a stiffening rib (5). The fixing plate (1) is disposed on a mounting surface (20). The flange plate (2) is disposed above the fixing plate (1). A road wheel (71) travels on the flange plate (2). An upper end of the web plate (3) is connected with the flange plate (2), and a lower end of the web plate (3) is connected with the fixing plate (1). The web plate (3) is in contact with and be associated with a guide wheel (72) to guide a traveling track of the guide wheel (72). An upper end of the stiffening rib (5) is connected with the flange plate (2), and a lower end of the stiffening rib (5) is connected with the fixing plate (1).

Abstract: Provided are a hepatopoietin PCn (HPPCn) and its homologous proteins, which can promote hepatocyte proliferation in vitro, promote liver regeneration in vivo, inhibit the growth of tumor cells and promote the apoptosis of tumor cells. The hepatopoietin PCn (HPPCn) and its homologous proteins are useful for the treatment of acute and chronic liver injury, or the treatment of liver fibrosis.

Abstract: Provided are a hepatopoietin PCn (HPPCn) and its homologous proteins, which can promote hepatocyte proliferation in vitro, promote liver regeneration in vivo, inhibit the growth of tumor cells and promote the apoptosis of tumor cells. The hepatopoietin PCn (HPPCn) and its homologous proteins are useful for the treatment of acute and chronic liver injury, or the treatment of liver fibrosis.