IN-VITRO STUDIES ON ?-AMYLASE, ?-GLUCOSIDASE AND ?-GALACTOSIDASE INHIBITORY ACTIVITY OF METHANOLIC EXTRACT OF THERIOPHONUM SIVAGANGANUM TUBERS AND ITS FRACTIONS Authors: Anuradha S , RAJU VS AND RANI VS
ABSTRACT
To investigate the therapeutic effects of Theriophonum sivaganganum methanolic extract and
its fractions for ?-amylase, ?-glucosidase and ?-galactosidase inhibitory activity by in vitro
assays. Tubers of Theriophonum sivaganganum (TS) were extracted with methanol by
maceration. And its fractions were prepared by dispersing uniformly in distilled water and
subjected to solvent fractionation with toluene, ethyl acetate and butanol. The fractions were
concentrated under reduced pressure. The inhibitory effect of these TS methanolic extract and
its fractions on ?-amylase, ?-glucosidase and ?-galactosidase enzymes was determined by in-
vitro assays. The results revealed that the methanolic extract and its fractions of Theriophonum
sivagnganum were inhibited ?-amylase, ?-glucosidase and ?-galactosidase enzymes in a dose
dependent manner. Among all these ethyl acetate fraction of Theriophonum sivagnganum has
shown the prominent ?-amylase, ?-glucosidase and ?-galactosidase enzyme inhibitory activity
with IC50 values of 5.75±0.18, 5.64±0.74 and 10.86±0.13mg/ml and it was well comparable
with standard IC50 value 5.29±0.59, 5.15±0.48 and 10.16±0.57mg/ml respectively. And
Phytochemical reports of TS revealed that it contains alkaloids, carbohydrates, steroids,
saponins, flavonoids and phenolic compounds. These results substantiate the use
of Theriophonum sivaganganum as medicine for the treatment of diabetes by controlling postprandial hyperglycemia. The results suggest that ethyl acetate fraction of tubers of
Theriophonum sivaganganum shown significant ?-amylase, ?-glucosidase and ?-galactosidase
enzyme inhibitory activity, which may be helpful to reduce the postprandial blood glucose
levels. However, the chemical compounds responsible for the inhibitory action of these
enzymes need to be further identified and characterized. This may be useful for the
development of new antidiabetic agents from plant sources.
Keywords: Theriophonum sivaganganum, ?-Amylase, ?-Glucosidase AND ?-Galactosidase Publication date: 01/09/2023 https://ijbpas.com/pdf/2023/September/MS_IJBPAS_2023_7396.pdfDownload PDFhttps://doi.org/10.31032/IJBPAS/2023/12.9.7396