Researching objectives: Describing some biological characteristics and distribution of Zingiber and Hedychium species from north-central Vietnam; determining the essential oil chemical composition; antimicrobial and antimosquito larvae activities of essential oils of some Zingiber and Hedychium species from north-central Vietnam. | MINISTRY OF EDUCATION AND VIETNAM ACADEMY TRAINING OF SCIENCE AND TECHNOLOGY GRADUATE UNIVERSITY SCIENCE AND TECHNOLOGY - TRINH THI HUONG A STUDY ON BIOLOGICAL CHARACTERISTICS AND ESSENTIAL OIL COMPOSITION OF Zingiber Boehm. AND Hedychium Koen. ZINGIBERACEAE Lindl. IN THE NORTH CENTRAL OF VIETNAM Major Botany Code SUMMARY OF BIOLOGY DOCTORAL THESIS Supervisors 1. Dr. Do Ngoc Dai 2. Dr. Nguyen Thi Thanh Huong HANOI - 2021 This dissertation has been carried out at The Graduate University of Science and Technology - Vietnam Academy of Science and Technology Supervisors 1. Dr. Do Ngoc Dai 2. Dr. Nguyen Thi Thanh Huong The 1st Reviewer The 2nd Reviewer The 3rd Reviewer The dissertation will be defended at the Board of Examiners of Graduate University of Science and Technology Vietnam Academy of Science and Technology at . on . The dissertation can be found at the National Library of Vietnam and Library of Graduate University of Science and Technology 1 INTRODUCTION 1. The urgency of the dissertation topic Zingiberaceae Lindl. consists of perennial herbaceous plants with transverse rhizomes or tubers mainly distributed in tropical and subtropical countries. Zingiber Boehm. and Hedychium Koen. are commonly used in traditional medicine and in food processing. Nowadays the demand for using essential oil products of plants is increasing day by day. Furthermore essential oils from species in the Zingiber and Hedychium have shown antimicrobial antifungal antioxidant and insecticidal activities. Thus they are likely to be Used as safer alternatives to synthetic antibiotics antifungals mosquito repellents pesticides and in beauty treatments. The North Central region is the intersection of the flora stream from the North to the South and is also home to many special-use forests so the flora is very rich and diverse. However many species in the ginger genus Zingiber Zingiber and the genus Wormwood Hedychium have not been fully studied for the plant and essential oil .
