机构地区: 江西农业大学食品科学与工程学院食品科学与工程系
出 处: 《江西农业大学学报》 2005年第4期508-512,共5页
摘 要: 鱼精蛋白是一种多聚阳离子天然肽类,它是一种碱性蛋白质,具有广谱抑菌活性。通过鲤鱼鱼精蛋白对枯草芽孢杆菌生长的影响及对黑曲霉胞内的琥珀酸脱氢酶(SDH)和苹果酸脱氢酶(MDH)活性影响的研究,探讨鲤鱼鱼精蛋白的抑菌机理。试验结果表明:鲤鱼鱼精蛋白对枯草芽孢杆菌具有较强的抑制作用,但对枯草芽孢杆菌细胞壁不产生破坏作用;对黑曲霉胞内的琥珀酸脱氢酶和苹果酸脱氢酶的活性具有明显的抑制作用。 Protamine is a kind of natural basic protein with polypositive ions. In order to investigate the antibacterial mechanism of protamine, the effect of protamine on the growth of Bacillus subtilis and the activities of succinate dehydrogenase (SDH) and malata dehydrogenase (MDH) in cells of Aspergillus niger was studied. The results showed: protamine could inhibit the growth of Bacillus subtilis without destroying the cellular wall and significantly inhibit the activities of succinate dehydrogenase and malata dehydrogenase.