Khalid Hussain1, Abida Qamar1, Nadeem Irfan Bukhari1, Amjad Hussain1, Naureen Shehzadi1, Shaista Qamar1, Sajida Parveen1.
Abstract
OBJECTIVES: The present study aimed to enhance the aqueous solubility of methanol extract of leaves of Vinca rosea (family: Apocynaceae) by particle-size reduction using milling and to evaluate its antidiabetic activity.
MATERIALS AND METHODS: The methanol extract (ME) was micronized using a vibratory ball mill, operated at a vibratory speed of 15 Hz for 60 min at room temperature, and the resulting extract micronized ME (MME) was investigated to determine particle size, solubility, UV/visible profile, and in vitro antidiabetic activity.
RESULTS: The average particle size of MME was 0.753±0.227 μm, which was less than half of that of the ME (2.007±0.965 μm). The solubility of MME was greater than that of the ME. MME exhibited 65.63%, 18.0%, and 96.87% higher antidiabetic activity in the glucose uptake by the yeast cells method, hemoglobin glycosylation assay, and the alpha amylase inhibition assay, respectively (p<0.05).
CONCLUSION: The results of the present study indicate that micronization effectively enhanced the aqueous solubility and antidiabetic activity of methanol extract of leaves of Vinca rosea. ©Copyright 2019 Turk J Pharm Sci, Published by Galenos Publishing House.
OBJECTIVES: The present study aimed to enhance the aqueous solubility of methanol extract of leaves of Vinca rosea (family: Apocynaceae) by particle-size reduction using milling and to evaluate its antidiabetic activity.
MATERIALS AND METHODS: The methanol extract (ME) was micronized using a vibratory ball mill, operated at a vibratory speed of 15 Hz for 60 min at room temperature, and the resulting extract micronized ME (MME) was investigated to determine particle size, solubility, UV/visible profile, and in vitro antidiabetic activity.
RESULTS: The average particle size of MME was 0.753±0.227 μm, which was less than half of that of the ME (2.007±0.965 μm). The solubility of MME was greater than that of the ME. MME exhibited 65.63%, 18.0%, and 96.87% higher antidiabetic activity in the glucose uptake by the yeast cells method, hemoglobin glycosylation assay, and the alpha amylase inhibition assay, respectively (p<0.05).
CONCLUSION: The results of the present study indicate that micronization effectively enhanced the aqueous solubility and antidiabetic activity of methanol extract of leaves of Vinca rosea. ©Copyright 2019 Turk J Pharm Sci, Published by Galenos Publishing House.
Entities:
Keywords:
Vinca rosea; antidiabetic activity; methanol extract; micronization; solubility
Year: 2019
PMID： 32454732 PMCID： PMC7227942 DOI： 10.4274/tjps.galenos.2018.02419
Source DB: PubMed Journal: Turk J Pharm Sci ISSN： 1304-530X