Nisha Joseph
Post Graduate and Research Department of Botany, Catholicate College Pathanamthitta, Kerala, India.
A. S. Deepthi
Post Graduate and Research Department of Botany, Catholicate College Pathanamthitta, Kerala, India.
Gokul G. Nair
Post Graduate and Research Department of Botany, Catholicate College Pathanamthitta, Kerala, India.
Merin Grace Jiji
Post Graduate and Research Department of Botany, Catholicate College Pathanamthitta, Kerala, India.
In this post, we present a brief overview of our recently published book chapter titled “Evaluation of α-Amylase Inhibitory Activity of Aqueous Extracts of Selected Plants”
The total phenolic and tannin content of five medicinal plants (Aerva lanata, Emblica officinalis, Momordica charantia, Musa paradisiaca, and Psidium guajava) was estimated. The results showed significant variations in total phenolic and tannin content among the selected plants. The analysis of variance (ANOVA) revealed significant differences (P < 0.001) in total phenolic and tannin content among the selected plants.
Phenol Estimation
The total phenolic content ranged from 94.67 to 1913.33 µg/ml. Psidium guajava exhibited the highest total phenolic content (1913.33 ± 1.20 µg/ml), followed by Emblica officinalis (959.33 ± 0.67 µg/ml). Aerva lanata and Momordica charantia showed moderate total phenolic content, with values of 387.00 ± 1.52 µg/ml and 257.33 ± 1.73 µg/ml, respectively. Musa paradisiaca had the lowest total phenolic content (94.67 ± 1.52 µg/ml).
Tannin Estimation
The total tannin content ranged from 29.67 to 58.67 µg/ml. Psidium guajava exhibited the highest total tannin content (58.67 ± 0.88 µg/ml), followed by Musa paradisiaca (47.00 ± 0.57 µg/ml). Aerva lanata, Emblica officinalis, and Momordica charantia showed lower total tannin content, with values ranging from 29.67 to 30.33 µg/ml.
