本实验研究18种辛香料对五种食源性病原菌：单增李斯特菌,大肠杆菌O157∶H7,肠炎沙门氏菌,副溶血性弧菌和金黄色葡萄球菌的抑制作用。辛香料以60℃蒸馏水浸提。研究各种辛香料的最低抑菌浓度（80-5 mg/mL）以及经100℃处理15 m in和121...本实验研究18种辛香料对五种食源性病原菌：单增李斯特菌,大肠杆菌O157∶H7,肠炎沙门氏菌,副溶血性弧菌和金黄色葡萄球菌的抑制作用。辛香料以60℃蒸馏水浸提。研究各种辛香料的最低抑菌浓度（80-5 mg/mL）以及经100℃处理15 m in和121℃处理15 m in的稳定性。结果表明,大部分辛香料具有良好的抑菌效果,尤其是丁香和桂皮对副溶血弧菌和金黄色葡萄球菌的最低抑菌浓度为5 mg/mL。经热处理部分香料失去了抑制作用,如八角,茴香,五香粉,海南白和黑胡椒,但大多数香料保持抑菌效果。这些结果表明,香料可抑制感染海产品的病原菌,同时在加工香料的过程中应该避免高温处理。展开更多
The water repellence and mechanical properties of the gelatin/Ce（Ⅲ） fiber（GCe fiber） were improved by heat treatment,which was an easy and non-toxic method.The microscopic morphology,mechanical properties,antibac...The water repellence and mechanical properties of the gelatin/Ce（Ⅲ） fiber（GCe fiber） were improved by heat treatment,which was an easy and non-toxic method.The microscopic morphology,mechanical properties,antibacterial activity,and cell culture of the GCe fibers by heat treatment（HGCe fiber） were investigated.It was found that the water repellence and mechanical properties of the HGCe fibers increased significantly along with temperature increase.SEM observation showed that HGCe fibers had a fairly smooth surface and a compact structure.Detailed characterization revealed that the HGCe fibers exhibited similar antibacterial activity with the GCe fibers against Staphylococcus aureus.In addition,the results of cell culture by morphological assessment and methylthiazolyl tetrazolium assay（MTT assay） indicated the good biocompatibility of GCe fibers.Therefore,the HGCe fibers could be a promising candidate biomaterial for biomedicine applications.展开更多
文摘本实验研究18种辛香料对五种食源性病原菌：单增李斯特菌,大肠杆菌O157∶H7,肠炎沙门氏菌,副溶血性弧菌和金黄色葡萄球菌的抑制作用。辛香料以60℃蒸馏水浸提。研究各种辛香料的最低抑菌浓度（80-5 mg/mL）以及经100℃处理15 m in和121℃处理15 m in的稳定性。结果表明,大部分辛香料具有良好的抑菌效果,尤其是丁香和桂皮对副溶血弧菌和金黄色葡萄球菌的最低抑菌浓度为5 mg/mL。经热处理部分香料失去了抑制作用,如八角,茴香,五香粉,海南白和黑胡椒,但大多数香料保持抑菌效果。这些结果表明,香料可抑制感染海产品的病原菌,同时在加工香料的过程中应该避免高温处理。
基金Project supported by the Foundation of State Key Laboratory of Chemical Resource Engineering (2008-2009)
文摘The water repellence and mechanical properties of the gelatin/Ce（Ⅲ） fiber（GCe fiber） were improved by heat treatment,which was an easy and non-toxic method.The microscopic morphology,mechanical properties,antibacterial activity,and cell culture of the GCe fibers by heat treatment（HGCe fiber） were investigated.It was found that the water repellence and mechanical properties of the HGCe fibers increased significantly along with temperature increase.SEM observation showed that HGCe fibers had a fairly smooth surface and a compact structure.Detailed characterization revealed that the HGCe fibers exhibited similar antibacterial activity with the GCe fibers against Staphylococcus aureus.In addition,the results of cell culture by morphological assessment and methylthiazolyl tetrazolium assay（MTT assay） indicated the good biocompatibility of GCe fibers.Therefore,the HGCe fibers could be a promising candidate biomaterial for biomedicine applications.
