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Phytochemical Screening on Phenolic, Flavonoid Contents, and Antioxidant Activities of Six Indigenous Plants Used in Traditional Thai Medicine by Tanawuth Tiranakwit; Wimonwan Puangpun; Kawintra Tamprasit; Natthapong Wichai; Sirithon Siriamornpun; Tarapong Srisongkram; Natthida Weerapreeyakul is a Biochemistry, Genetics and Molecular Biology article available to read on EtoBox.

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The antioxidant activity of a traditional Thai formula has been studied and compared to each plant. The formula comprised the roots of __Caesalpinia digyna__ Rottler, __Huberantha cerasoides__ (Roxb.) Benth), __Oxyceros horridus__ Lour, __Antidesma ghaesembilla__ Gaerth, __Combretum quadrangulare__ Kurz, and __Ziziphus cambodiana__ Pierre. The stem was also studied in comparison. The ethanolic extract from each plant part and the mixed plants mimicking the traditional formula were prepared and investigated for antioxidant capability in vitro via DPPH radical scavenging and ferric-reducing antioxidant power assays. The phytochemical constituents were determined by chemical screening, total phenolic (TPC) and flavonoid contents (TFC), and high-performance liquid chromatography. The relationship between antioxidant activity and the contributed phytochemicals was determined using correlation analysis and principal component analysis (PCA). Results showed that extracts from both parts of the plant formula showed the highest antioxidant activity compared to a single plant extract. Among the six plants, __C. digyna__ exhibited the highest TPC and antioxidant activity. TPC had a strong pos

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Author

Tanawuth Tiranakwit; Wimonwan Puangpun; Kawintra Tamprasit; Natthapong Wichai; Sirithon Siriamornpun; Tarapong Srisongkram; Natthida Weerapreeyakul

Publisher

MDPI AG

Published

2023

Language

EN

Field

Biochemistry, Genetics and Molecular Biology (Life Sciences)