Protective effect of steamed American ginseng ( Panax quinquefolius L.) on V79-4 cells induced by oxidative stress
Heat-processed Asian ginseng roots ( Panax ginseng C.A. Meyer), also known as “red ginseng” in Asia, are reported to have more bioactivity than the no-processed white ginseng roots. Therefore, American fresh ginseng roots ( Panax quinquefolius L.) were processed to the red ginseng and examined chang...
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Published in: | Journal of ethnopharmacology Vol. 111; no. 3; pp. 443 - 450 |
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Main Authors: | , , , , , |
Format: | Journal Article |
Language: | English |
Published: |
Shannon
Elsevier Ireland Ltd
22-05-2007
Elsevier |
Subjects: | |
Online Access: | Get full text |
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Summary: | Heat-processed Asian ginseng roots (
Panax ginseng C.A. Meyer), also known as “red ginseng” in Asia, are reported to have more bioactivity than the no-processed white ginseng roots. Therefore, American fresh ginseng roots (
Panax quinquefolius L.) were processed to the red ginseng and examined changes in bioactivity during heating process. The fresh America ginseng roots were steamed at 100
°C for 30, 60, 90 and 120
min, and their bioactivities were examined by analyzing the content of ginsenosides and total phenolics, and measuring DPPH and superoxide radical scavenging acivity and their protective effects on V79-4 cells viability and lipid peroxidation. The heating treatment proportionally increased total ginsenosides (4.97%, w/w) content compared with white ginseng (3.27%) and total phenolics from 444.5
mg GAE/100
g to 489.6–574.2
mg GAE/100
g. The antioxidant activity also increased from 285
mg/100
g (vitamin C equivalent) to 353–487
mg/100
g. Heated ginseng showed high levels of DPPH radical scavenging activity (59.5–88.5%) and the high level of superoxide radical scavenging activity (44.2–90.9%). The heated ginseng protected cell viability against H
2O
2-induced oxidative damage, and enhanced the activities of superoxide dismutase and catalase by dose dependently in V79-4 cells. |
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Bibliography: | http://dx.doi.org/10.1016/j.jep.2007.01.004 ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0378-8741 1872-7573 |
DOI: | 10.1016/j.jep.2007.01.004 |