a. Having mangrove samples with medicinal potential collected in some areas of the Xuan Thuy National Park.
b. Having bioative compounds obtained from antimicrobial and cytotoxic assay guided isolation.
c. Introduction to the use of some promising mangrove plants.

- Theoretical results:
- Investigated and collected 28 mangrove plant samples with the scientific names and specimens.
- The crude extracts and fractions of the mangrove plants were screened for their antimicrobial (8 strains) and cytotoxic (against 5 cancer cell lines) activities.
- 77 compounds (including one new cycloartane glucoside, rhizostyloside, from Rhizophora stylosa) were isolated from 5 mangrove plants by using various chromatographic methods. Their chemical structures were elucidated by 1H-NMR, 13C-NMR, DEPT, HSQC, HMBC, COSY, NOESY, and HR-ESI mass spectra.
- The isolated compounds were tested for their antimicrobial and cytotoxic activities. From the obtained data, 44 compounds were found to be active.
- Having analyzed the presence of bioactive compounds in 5 mangrove plant samples and having quantified content of these compounds in original plant samples.
- Applied results:
- Introduction to the use of the two promising mangrove plants: Lumnitzera racemoca and Rhizophora stylosa.

- This is the first studies on the chemical composition and bioactivity of 5 mangrove plants collected in Xuan Thuy National Park in Nam Dinh province. - A new compound was isolated from mangrove plant Rhizophora stylosa.
- 44 bioactive compounds were found from 5 Vietnamese mangrove species.

- Scientific papers in referred journals:
1. Phan Thi Thanh Huong, Chau Ngoc Diep, Nguyen Van Thanh, Vu Anh Tu, Tran Hong Hanh, Nguyen The Cuong, Nguyen Phuong Thao, Nguyen Xuan Cuong, Do Thi Thao, Tran Huy Thai, Nguyen Hoai Nam, Ninh Khac Ban, Phan Van Kiem and Chau Van Minh - A New Cycloartane Glucoside from Rhizophora stylosa, Natural Product Communications 9 (2014) pp. 1255-1257.
2. Nguyen Phuong Thao, Bui Thi Thuy Luyen, Chau Ngoc Diep, Bui Huu Tai, Eun Ji Kim, Hee Kyoung Kang, Sang Hyun Lee, Hae Dong Jang, Nguyen The Cuong, Nguyen Van Thanh, Nguyen Xuan Cuong, Nguyen Hoai Nam, Chau Van Minh, Young Ho Kim - In vitro evaluation of the antioxidant and cytotoxic activities of constituents of the mangrove Lumnitzera racemosa Willd., Arch. Pharm. Res. 2014 (accepted).
3. Pham Thi Mai Huong, Nguyen Van Thanh, Phan Thi Thanh Huong, Nguyen The Cuong, Chau Ngoc Diep, Vu Anh Tu, Tran Thi Hong Hanh, Nguyen Phuong Thao, Nguyen Xuan Cuong, Nguyen Hoai Nam, Phan Van Kiem, Chau Van Minh – Flavonoids from Sonneratia caseolaris (L.), Journal of Science and Technology 52 (5A) (2014) 403-409.
4. Chemical constituents from fruits of Pandanus odoratissimus (L. F.) - Ninh Thi Ngoc, Nguyen Van Thanh, Pham Thi Mai Huong, Phan Thi Thanh Huong, Nguyen The Cuong, Tran Thi Hong Hanh, Nguyen Xuan Cuong, Nguyen Hoai Nam, Chau Van Minh, Proceedings of the Workshop on "Research and development of natural products 4th” (2014) 163-169.
5. Pham Thi Mai Huong, Nguyen Van Thanh, Phan Thi Thanh Huong, Ninh Thi Ngoc, Chau Ngoc Điep, Vu Anh Tu, Tran Thi Hong Hanh, Le Thi Vien, Nguyen Xuan Cuong, Nguyen Hoai Nam, Chau Van Minh – The initial study on chemical constituents of Sonneratia caseolaris L., Proceedings of the national conference on marine biology and sustainable development 2nd (2014) 659-665.
- Patents: Not registered on patent
- Technological products (describe in details: technical characteristics, place):
- Specimens of 28 mangrove plants were deposited at Institute of Marine Biochemistry.
- Spectral data of isolated compounds.
- Tested results of antimicrobial and cytotoxic activities of the crude extracts and isolated compounds from mangrove plants.
- Other products: Have trained 01 Master and contribution to train 01 PhD students.

Xuan Thuy National Park in Nam Dinh province.