Turkish Journal of Biology | |
Antioxidant properties of different extracts of black mulberry (Morus nigra L.) | |
TÜRKAN KUTLU1  | |
关键词: Antioxidant properties; black mulberry; phenolic; extract; metal chelating activity; | |
学科分类:生物科学(综合) | |
来源: Scientific and Technical Research Council of Turkey - TUBITAK | |
【 摘 要 】
In vitro antioxidant properties of 3 different extracts of black mulberry (Morus nigra L.) were investigated. Acidified methanol, acidified water, and non-acidified methanol/water solutions were used to prepare extracts. Different solvents caused different protonation on black mulberry anthocyanin structures, which were predicted according to their UV-VIS spectrum. Extracts indicated 2 main peaks at about ~280 and ~520 nm with different peak areas in their UV-VIS spectrum. The rank of extracts' total phenolic content and reducing power values were both found to be in correlation with their absorbance at ~280 nm. Meanwhile the same relationship was observed between DPPH scavenging activity and absorbance values at ~520 nm. Acidified extract of black mulberry was higher in \beta-carotene prevention and DPPH radical scavenging activity than non-acidified extract. However, non-acidified extract represented a higher reducing power and metal chelating activity, and a higher content of total phenolics.
【 授权许可】
Unknown
【 预 览 】
Files | Size | Format | View |
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RO201901211853586ZK.pdf | 282KB | download |