FOOD SCIENCE ›› 2005, Vol. 26 ›› Issue (4): 48-51.

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Effects of Protamine on Succinate Dehydrogenase and Malata Dehydrogenase in Cells of Aspergillus niger

 XU  Ming-Sheng, CHEN  Jin-Ping, SHANG  Guan-Xin-Chen   

  1. 1.Department of Food Engineering, Shaanxi Normal University; 2.Department of Food Science, Jiangxi Agricultural University
  • Online:2005-04-15 Published:2011-09-19

Abstract: Protamine is a kind of natural peptide with polypositive ion, and is a kind of basic protein. In order to investigate its antibacterial action, the effects of protamine on succinate dehydrogenase and malata dehydrogenase in cells of Aspergillus niger were assayed. Results showed: protamine could significantly inhibit the activities of both succinate dehydrogenase and malata dehydrogenase (p<0.01). But the effect was less than that of the Natamycin. The results suggested that the protamine would have great potency to be used as food preservative.

Key words: protamine, Natamycin, succinate dehydrogenase, malata dehydrogenase, Aspergillus niger