The Health Properties of Dried Mangrove Leaves for Tea Preparation in the Area of Ban Na Thap, Tha Sala District, Nakhon Si Thammarat

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Published: Dec 26, 2025
Keywords:
mangrove leaf tea, antioxidant, α-amylase, α-glucosidase

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Chatchai Sungpud
Department of Agricultural, Faculty of Science and Technology, Nakhon Si Thammarat Rajabhat University
Chutinut Sujarit
Food Industry, Faculty of Science and Fisheries Technology, Rajamangala University of Technology Srivijaya
Chatjira Sungpud
Health Science Intensive Programme, Benjamarachutit School
Phakakrong Yotharak
Health Science Intensive Programme, Benjamarachutit School

Abstract

This research aimed to investigate the effects of extraction temperature on the bioactive, health-promoting properties of dried mangrove leaf extracts. The study examined total phenolic content, DPPH radical scavenging activity, and inhibitory effects on α-amylase and α-glucosidase enzymes from extracts prepared using different water extraction temperatures: room temperature, hot water (70–80°C), and boiling water. The results showed that hot water and boiling water extractions yielded the highest total phenolic content (0.16 mg GAE/g of extract) and exhibited significantly higher antioxidant activity than room-temperature extraction (P < 0.05), with IC50 values of 52.88 ± 1.25 and 52.83 ± 1.06 µg/ml, respectively. The α-amylase inhibitory activity of the hot and boiling water extracts (IC50 = 341.05 ± 2.22 and 340.40 ± 0.47 µg/ml) was lower than that of the standard acarbose (IC50 = 5.94 ± 0.01 µg/ml) by approximately 57 times. However, the α-glucosidase inhibitory activity of the hot and boiling water extracts showed no significant difference compared to acarbose. In conclusion, extraction of R. mucronata Poir. leaf tea using hot or boiling water is the most suitable method for producing functional, health-promoting tea products.

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How to Cite
Sungpud, C., Sujarit, C., Sungpud, C., & Yotharak, P. (2025). The Health Properties of Dried Mangrove Leaves for Tea Preparation in the Area of Ban Na Thap, Tha Sala District, Nakhon Si Thammarat. PKRU SciTech Journal, 9(2), 53–63. retrieved from https://ph01.tci-thaijo.org/index.php/pkruscitech/article/view/264258
Issue
Vol. 9 No. 2 (2025): July - December
Section
Research Articles
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