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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Zhang, Yuan Li, Xing Wang, Zhezhi |
| Description | Country affiliation: China Author Affiliation: Zhang Y ( Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi 710062, China.) |
| Abstract | Leaf of Salvia miltiorrhiza Bunge, the waste part during the root harvest, is rich in health-promoting phenolics and is a novel resource of natural antioxidants. The acetone and methanol extracts of leaves (AL and ML, respectively) of S. miltiorrhiza were evaluated by various in vitro antioxidant assays. The total phenolic contents of AL and ML were 39.0+/-1.13 and 54.3 +/-1.1mg gallic acid equivalents/g extract tested, respectively. EC(50) of ML was 7.0+/-0.28 microg/mL in DPPH radical scavenging assay and 246.5 +/-10.35 microg/mL in superoxide radical quenching assay. It was also found that ML has prominent effects on the inhibition of linoleic acid oxidation (93.2%), which was equivalent to the positive control, butylated hydroxytoluene (BHT, p>0.05), and was significantly higher than -tocopherol (VE, p<0.05). The reducing power of leaf extracts was as strong as roots (p>0.05). HPLC and correlation analysis show that salvianolic acid B and rosmarinic acid constitute the most abundant phenolic compounds. They are the major contributors to antioxidant activities. The results suggested that S. miltiorrhiza leaves could be considered as a new potential source of natural phenolic antioxidants for food, pharmaceutical, cosmetics or nutraceutical industries. |
| File Format | HTM / HTML |
| ISSN | 02786915 |
| Issue Number | 10 |
| Volume Number | 48 |
| e-ISSN | 18736351 |
| Journal | Food and Chemical Toxicology |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2010-10-01 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Toxicology__semicolon__nutritional Discipline Sciences Antioxidants Pharmacology Phenols Salvia Miltiorrhiza Chemistry Acetone Benzofurans Chromatography, High Pressure Liquid Cinnamates Depsides Ferric Compounds Indicators And Reagents Methanol Plant Extracts Plant Leaves Plant Roots Reducing Agents Solvents Spectrophotometry, Ultraviolet Beta Carotene Journal Article Research Support, Non-u.s. Gov't |
| Content Type | Text |
| Resource Type | Article |
| Subject | Medicine Toxicology Food Science |
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