Preliminary Phytochemical Screening and Antioxidant Activity of Robusta Coffee Blossom

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Vanida Chairgulprasert Kittiya Kongsuwankeeree

Abstract

The Robusta coffee flowers were analyzed for phytochemical composition and antioxidant activity. Flower powders at three different stages were extracted successively with hexane, dichloromethane and methanol, resulting in the extracts of varying yields (1.61-16.01%). All crude extracts were constituted of flavonoids, terpenoids and alkaloids. The methanol crude extracts exhibited the best antioxidant activity on both DPPH (EC50 0.03-0.13 mg/mL) and reducing power (EC50 0.19-0.46 mg/mL). It also contained the highest amount of total phenols (28.32-139.88 mg GAE/g extract).

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How to Cite
Chairgulprasert, V., & Kongsuwankeeree, K. (2017). Preliminary Phytochemical Screening and Antioxidant Activity of Robusta Coffee Blossom. Science & Technology Asia, 22(1), 1-8. Retrieved from https://www.tci-thaijo.org/index.php/SciTechAsia/article/view/80812
Section
Biological sciences
Author Biographies

Vanida Chairgulprasert, Department of Science, Faculty of Science and Technology, Prince of Songkla University, Pattani Campus, Mueang, Pattani 94000, Thailand

Department of Science, Faculty of Science and Technology, Prince of Songkla University,

Pattani Campus, Mueang, Pattani 94000, Thailand

Kittiya Kongsuwankeeree, Department of Science, Faculty of Science and Technology, Prince of Songkla University, Pattani Campus, Mueang, Pattani 94000, Thailand

Department of Science, Faculty of Science and Technology, Prince of Songkla University,
Pattani Campus, Mueang, Pattani 94000, Thailand