Antibacterial, Antifungal, and Antioxidant Activities and Polyphenol Content of the Edible Seeds of Archidendron bubalinum

K. Teh, Y. Wong, N. W. Sit

2022

Abstract

This study assessed the kernel extracts of Archidendron bubalinum (family Leguminosae) seeds for antibacterial, antifungal, and antioxidant activities as well as polyphenol content. The kernels were macerated using hexane, ethyl acetate, ethanol, and water sequentially and produced four extracts for analysis. All the extracts showed bactericidal effects against five of the six species of bacteria tested with minimum bactericidal concentrations of 0.63-2.50 mg/mL, and fungicidal effects against five species of fungi with minimum fungicidal concentrations of 0.31-2.50 mg/mL. All the extracts also exerted antioxidant activities. The hexane extract exhibited the lowest oxygen radical absorbance capacity (ORAC) and ferric-reducing antioxidant power (FRAP) values of 81.63 mmol Trolox equivalent/g of extract and 25.93 mmol Fe2+ equivalent/g of extract, respectively. In contrast, ethyl acetate extract exhibited the highest ORAC (300.13 mmol Trolox equivalent/g of extract) and FRAP (341.36 mmol Fe2+ equivalent/g of extract) values. Polyphenols were detected in all extracts with the total phenolic content (TPC) of 3.22-20.19 mg gallic acid equivalent/g of extract and the total flavonoid content (TFC) of 0.97-4.42 mg quercetin equivalent/g of extract. Association analysis between ORAC/FRAP and TPC/TFC revealed significant strong positive correlations (r = 0.937-0.995; all p<0.001). In conclusion, the edible seeds of A. bubalinum possessed antimicrobial and antioxidant properties and could be promoted as a healthy food.

Paper Citation

in Harvard Style

Teh K., Wong Y. and W. Sit N. (2022). Antibacterial, Antifungal, and Antioxidant Activities and Polyphenol Content of the Edible Seeds of Archidendron bubalinum. In Proceedings of the 8th International Conference on Agricultural and Biological Sciences - Volume 1: ABS, ISBN 978-989-758-607-1, pages 40-49. DOI: 10.5220/0011595600003430

in Bibtex Style

@conference{abs22,
author={K. Teh and Y. Wong and N. W. Sit},
title={Antibacterial, Antifungal, and Antioxidant Activities and Polyphenol Content of the Edible Seeds of Archidendron bubalinum},
booktitle={Proceedings of the 8th International Conference on Agricultural and Biological Sciences - Volume 1: ABS,},
year={2022},
pages={40-49},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0011595600003430},
isbn={978-989-758-607-1},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 8th International Conference on Agricultural and Biological Sciences - Volume 1: ABS,
TI - Antibacterial, Antifungal, and Antioxidant Activities and Polyphenol Content of the Edible Seeds of Archidendron bubalinum
SN - 978-989-758-607-1
AU - Teh K.
AU - Wong Y.
AU - W. Sit N.
PY - 2022
SP - 40
EP - 49
DO - 10.5220/0011595600003430