1. Natural Products for Neuroprotection and Anti-Ageing Research Unit, Chulalongkorn University, Bangkok, Thailand
2. Department of Clinical Chemistry, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok, Thailand
3. Department of Biochemistry and Molecular Biology, Pondicherry University (A Central University), Puducherry, India
4. Department of Chemistry, A.N.R College, Gudivada, India