Pharmacognostic and Phytochemical Characterization of Colocasia esculenta var. antiquorum Corm (Araceae) and Preliminary Evaluation of Its Antimicrobial Activity

Yati Sumiyati; Yesi Desmiaty; Gumilar Adhi Nugroho; Fauzia Noprima Okta

doi:10.58511/v3i1.9218

Authors

Yati Sumiyati Department of Biomedical and Clinical Pharmacy, Faculty of Pharmacy, Universitas Pancasila, Jakarta, Indonesia
Yesi Desmiaty Department of Pharmaceutical Biology, Faculty of Pharmacy, Universitas Pancasila, Jakarta, Indonesia
Gumilar Adhi Nugroho Center for Study of Natural Products, Faculty of Pharmacy, Universitas Pancasila, Jakarta, Indonesia
Fauzia Noprima Okta Department of Pharmacy, Faculty of Mathematics and Natural Sciences, Universitas Bengkulu, Bengkulu, Indonesia

DOI:

https://doi.org/10.58511/v3i1.9218

Keywords:

Colocasia esculenta, Taro Corm, Aqueous Extract, Pharmacognostic Analysis, Phytochemical Screening

Abstract

Colocasia esculenta has been reported in reputable journals to exhibit various bioactivities, including antioxidant, anti-inflammatory, and antidiabetic properties. This study aimed to investigate the pharmacognostic characteristics and phytochemical profile of Colocasia esculenta var. antiquorum corm (Araceae). The corms were collected, authenticated, oven-dried, and subjected to preliminary pharmacognostic and phytochemical analyses. Pharmacognostic evaluations included organoleptic, microscopic, and physicochemical examinations. The dried corm powder was extracted with distilled water, followed by qualitative phytochemical screening. The extract was found to contain saponins, flavonoids, tannins, and triterpenoids. Antimicrobial activity was further evaluated against Staphylococcus aureus, Escherichia coli, and Candida albicans, which were selected as representative pathogenic microorganisms for Gram-positive bacteria, Gram-negative bacteria, and fungi, respectively. These microorganisms were chosen based on previous reports demonstrating that the ethanolic leaf extract of taro exhibited antifungal activity against Candida albicans and antibacterial activity against Pseudomonas aeruginosa, Staphylococcus aureus, Klebsiella, and Escherichia coli. However, no inhibitory effect was observed in this study. All analyses were performed in accordance with the guidelines of the Indonesian Herbal Pharmacopeia. The findings provide reference data for the pharmacognostic identification of Colocasia esculenta corm and highlight its phytochemical constituents. Further investigations on other biological activities are required to validate its therapeutic potential.

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