Extract from Brunei's Eight Medicinal Plants for Food-Contact Related Antimicrobial Application, Antioxidant and Cytotoxicity Activities / Hazirah Abd Hamid

Thesis Submitted in partial fulfilment of the requirement for the degree of Doctor of Philosophy

ABSTRACT
First and foremost, I would like to acknowledge The Brunei Government Scholarship for their financial support and Universiti Teknologi Brunei for providing me academic freedom in this research. I would also like to express my special gratitude to my supervisors): Dr. Namasivayam Navaranjan, Prof. Hih Zohrah and Dr. Aida for their feedback, generously provided knowledge and expertise. I am also grateful to my research colleagues; Atiqah, Afiq, Hamizah and Nur Hazirah, for an amazing experience working, including moral support and your friendship. My sincere gratitude and appreciation to Public Health Engineering Laboratory and Petroleum and Chemical Engineering Laboratory, Universiti of Teknologi Brunei for contributing service and made ease of the experiment throughout this research. In particular thanks to technicians; Amalina and Roslizah for all of your help. I thank all the staff members of The Brunei National Herbarium (BRUN), Sg. Liang for their service, assistance and input. I also would like to express my appreciation to IBTE Agro-Technology Campus in Wasan, mainly for providing facilities and utilities during the collaboration.
Another university collaboration was made with Osaka University, Japan supported by JASSO Scholarship and supervised under Prof. Masayoshi Arai: I thank you for your guidance, input and support. Lastly, I would like to thank my family, especially my parents, spouse and children. I also wish to express my appreciation to countless individuals who have contributed directly or indirectly towards the accomplishment of my research work. In particular thanks to Kenny and his father for specifically providing me with Roselle's plant to aid in this research work.

Thesis (PHD) - Universiti Teknologi Brunei, 2023