›› 2016, Vol. 28 ›› Issue (12): 2109-2115.DOI: 10.3969/j.issn.1004-1524.2016.12.21

• Food Science • Previous Articles     Next Articles

Optimization of chlorophylls extraction from Cinnamomum camphora (L.) Presl leaf and its inhibitory effect against Staphylococcus aureus in liquid food

QUAN Qin-guo1, DUAN Li-ping2, HE Chu-xian1, ZHOU Nong1, LI Cheng-yong1,*   

  1. 1. College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China;
    2. Department of Biochemistry, Hunan University of Science and Engineering, Yongzhou 425199, China
  • Received:2016-04-18 Online:2016-12-15 Published:2017-01-05

Abstract: Chlorophyll was extracted from Cinnamomum camphora(L.) Presl leaves in Yongzhou via ultrasonic-assisted organic solvent, and the sterilization effect of the extracted chlorophylls against Staphylococcus aureus in liquid food was explored. It was shown that 4.667 mg·g-1 chlorophyll could be obtained under the following optical conditions: solid/liquid ratio of 1: 20 g·mL-1; ultrasonic treatment time of 8.8 min; extraction temperature of 50 ℃; extraction time of 3.9 h, and acetone-ethanol (2:1. V/V) as the extraction agent. The best inhibition effects of the extracted chlorophyll against S. aureus was achieved at the concentration of 10 mmol·L-1 in NaCl-water system.

Key words: Cinnamomum camphora(L.) Presl, chlorophyll, liquid food, inhibitory effect

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