1. Department of Chemistry, Natural Products Research Laboratory, College of Science, Sultan Qaboos University, Al-Khod, Muscat, Oman
2. Department of Food Science and Nutrition, College of Agricultural and Marine Sciences, Sultan Qaboos University, Al-Khod, Muscat, Oman
3. Ageing and Dementia Research Group, Sultan Qaboos University, Al-Khod, Muscat, Oman
4. Department of Biochemistry and Biotechnology, Annamalai University, Annamalai Nagar, India