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Publication
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| Title of Article |
Determination of ascorbic acid and total phenolics related to the antioxidant activity of some local tomato (Solanum lycopersicum) varieties |
| Date of Acceptance |
6 April 2015 |
| Journal |
| Title of Journal |
Der Pharma Chemica |
| Standard |
SCOPUS |
| Institute of Journal |
Der Pharma Chemica |
| ISBN/ISSN |
0975-431X |
| Volume |
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| Issue |
7 |
| Month |
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| Year of Publication |
2015 |
| Page |
66-70 |
| Abstract |
The present study was aimed to determine ascorbic acid, total phenolics and antioxidant activity of five local tomato
varieties available in fresh markets, namely “Rashinee”, “Puang”, “Sida”, “Tou” and “Cherry”, under optimum
conditions of 2,6-dichlorophenolindophenol, Folin-Ciocalteu reagent and 2,2-diphenyl-picrylhydrazyl radical
methods, respectively. Fresh tomato fruits were homogenized and kept as a freeze-dry powder prior to be extracted
with methanol, ethanol and deionized water using ultrasonicator as a green extraction method. It was found that the
methanol extracts of these samples gave rather higher antioxidant activities (171.6-197.1 mg BHT/100 g dry weight)
and total phenolics (302.3-349.7 mg GAE/100 g dry weight) than those of both ethanol and aqueous extracts. It is
evident that the total phenolics contents relate well with its corresponding antioxidant activity for all tomato
varieties. However, the ascorbic acid contents (37.6-62.9 mg/100 g dry weight) of the aqueous extract could be
cooperated as the synergistically reducing factor. |
| Keyword |
antioxidant activity, total phenolics, ascorbic acid, tomato |
| Author |
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| Reviewing Status |
มีผู้ประเมินอิสระ |
| Status |
ตีพิมพ์แล้ว |
| Level of Publication |
นานาชาติ |
| citation |
true |
| Part of thesis |
true |
| Attach file |
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| Citation |
0
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Journal Publication
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