Publication: Evaluation of the antioxidant activities of Ya-hom intajak, A thai herbal formulation, and its component plants
Issued Date
2014-01-01
Resource Type
ISSN
15969827
15965996
15965996
Other identifier(s)
2-s2.0-84908115182
Rights
Mahidol University
Rights Holder(s)
SCOPUS
Bibliographic Citation
Tropical Journal of Pharmaceutical Research. Vol.13, No.9 (2014), 1477-1485
Suggested Citation
Jantanarak Tuekaew, Nisarat Siriwatanametanon, Yuvadee Wongkrajang, Rungravi Temsiririrkkul, Ibrahim Jantan Evaluation of the antioxidant activities of Ya-hom intajak, A thai herbal formulation, and its component plants. Tropical Journal of Pharmaceutical Research. Vol.13, No.9 (2014), 1477-1485. doi:10.4314/tjpr.v13i9.14 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/34597
Research Projects
Organizational Units
Authors
Journal Issue
Thesis
Title
Evaluation of the antioxidant activities of Ya-hom intajak, A thai herbal formulation, and its component plants
Other Contributor(s)
Abstract
© Pharmacotherapy Group, Faculty of Pharmacy, University of Benin, Benin City, 300001 Nigeria. All rights reserved. Purpose: To evaluate the antioxidant effect of 80% ethanol extract and its n-hexane and dichloromethane fractions of Ya-hom Intajak, and its 47 medicinal plants components.Methods: The 80% ethanol extract and its n-hexane and dichloromethane fractions were investigated on human low-density lipoprotein (LDL) peroxidation by thiobarbituric acid reactive substances (TBARS) assay. Antioxidant effect was also determined by 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging capacity and ferric reducing antioxidant power (FRAP) assays.Results: The extract of Ya-hom Intajak exhibited moderate DPPH scavenging activity with an IC50 value of 99.08 μg/ml and a FRAP value of 1.12 mmol FeSO4/g. Among the individual plants, Terminalia chebula Retz., Caesalpinia sappan L., Cinnamomum bejolghota (Buch.-Ham.) and Ci. verum J. Presl, showed strong antioxidant activities. T. chebula was the most potent plant in the DPPH assay while Ca. sappan had the highest FRAP value. Among the extracts, the dichloromethane fraction showed the highest inhibitory effect on LDL peroxidation with a half maximal inhibitory concentration (IC50) value comparable to that of probucol (0.82 μg/ml). Pearson correlation analysis revealed that total phenolic content (TPC) showed high positive correlations with FRAP (r = 0.908, p < 0.01) and DPPH activities (r = 0.648, p < 0.01).Conclusion: Ya-hom Intajak is a valuable source of natural antioxidants and has a potential application as a cardiovascular protective formulation.