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- Title
ANTIBACTERIAL AND ANTIOXIDATIVE ACTIVITIES OF MULBERRY RED PIGMENT.
- Authors
Yi Diao
- Abstract
In this article, the antibacterial and antioxidative effects of mulberry red pigment were studied in order to contribute to edible and medicinal values of mulberry. Antibacterial actions of mulberry red pigment against Bacillus subtilis, Staphylococcus aureus, Escherichia coli, Pseudomonas stutzeri, Asparagillus niger and Saccharomyces cerevisiae were studied by inhibitory zone with filter paper and analysis of minimum inhibitory concentration, and the antioxidant effects of mulberry red pigment were investigated by scavenging DPPH free radical and scavenging superoxide radical. As a result, antibacterial and antioxidative abilities increased gradually with increase of concentration of mulberry red pigment. The mulberry red pigment showed antibacterial effects against six bacterial stains: E. coli > S. aureus > B. subtilis > P. stutzeri > A. niger > S. cerevisiae, and had the most strongly antibacterial activity on E. coli with IC50 value of 16.27 mg/mL and the most weakly antibacterial action on S. cerevisiae with IC50 value of 195.7 mg/mL. And mulberry red pigment could scavenge DPPH free radical and superoxide radical, and EC50 were 3.91 g/L and 1.93 g/L, respectively, but the antioxidant properties were lower than that of Vc. In general, mulberry red pigment had antibacterial and antioxidative effects, antibacterial ability against bacteria was higher than agaist fungi, and could scavenge DPPH free radical and superoxide radical.
- Subjects
MULBERRY; BACILLUS subtilis; SACCHAROMYCES cerevisiae; INHIBITORY Concentration 50; ANTIOXIDANTS; RED mulberry; SUPEROXIDES; THERAPEUTICS
- Publication
Carpathian Journal of Food Science & Technology, 2016, Vol 8, Issue 1, p169
- ISSN
2066-6845
- Publication type
Article