Dr. Alumanda Dela Rosa is recognized for her research in radiation biochemistry. Her main research areas include, among others, radiation chemistry for the development of products from indigenous natural polymers using radiation, environmental chemistry and coastal pollution due to heavy metals and harmful algal blooms. Her work on the membrane vesicles isolated from Escherichia coli finds applications in areas of biological research like radiation carcinogenesis, radiation therapy, and food irradiation. She is also known for her significant contribution in enhancing the rate of saccharification of cellulosic wastes. Her scientific work was recognized by the Philippine Scientific Career Council (SCC) with her conferment of the rank of Career Scientist IV in 1991 – the highest rank so far conferred by the SCC. Ms Dela Rosa holds a PhD from the University of Hawaii.
Sex: Female
Education:
- University of Hawaii at Manoa, Hawaii, U.S.A., Doctor of Philosophy in Biochemistry, 1977
Field of Specialization:
Radiation Chemistry, Chemistry, Applied Physics, Agricultural Research, Biomedical Research, Health Physics Research, Isotope Techniques Research, Nuclear Materials Research
Researches:
Deocaris, C.C., De Guzman, R.R.C., Abilo, R.M.L., Deocaris, C.C., Gutierrez, A.K.O., Cruz, A.C., & Dela Rosa, A.M., (2001) Anti-ulcer, Anti-protozoan, and Anti-cancer activities of Irradiated K-carrageenan
Philippines Nuclear Journal Volume 13
Abad, L.V., Aranilla, C.T., Relleve, L.S., & Dela Rosa, A.M., (2014) Emerging applications of radiation-modified carrageenans
Nuclear Instruments and Methods in Physics Research B Volume 336
Dela Rosa, A.M., Abad, L.V., Relleve, L.S., Aranilla, C.T., & Pascual, C.L., (2002) Radiation-modified Carrageenan for Agricultural and Health Care Applications
Final Project Coordinators Meeting, RAS/8/087 on Radiation Processing of Agrowaste, Bangkok, Thailand
Abad, L.V., Relleve, L.S., Aranilla, C.T., & Dela Rosa, A.M., (2003) Properties of Radiation Synthesized PVP-kappa Carrageenan Hydrogel Blends
Radiation Physics and Chemistry Volume 68
Abad, L.V., Nasimova, I., Relleve, L.S., Aranilla, C.T., Dela Rosa, A.M., & Shibayama, M., (2004) Dynamic Light Scattering Studies of Irradiated Kappa Carrageenan
International Journal of Biological Macromolecules Volume 34
Relleve, L.S., Nagasawa, N., Luna, L., Yagi, T., Aranilla, C.T., Abad, L.V., Kume, T., Yoshii, F., & Dela Rosa, A.M., (2004) Degradation of Carrageenan by Low Energy Accelerator
Proceedings of the FNCA 2003 Workshop on Application of Electron Accelerator-Radiation System for Thin Films, Kuala Lumpur, Malaysia, JAERI-Conf 2004-007
Abad, L.V., Saiki, S., Kudo, H., Muroya, Y., Katsumura, Y., & Dela Rosa, A.M., (2007) Rate Constants of Reactions of κ-Carrageenan with Hydrated Electron and Hydroxyl Radical
Nuclear Instruments and Methods in Physics Research Section B Volume 265, No. 1
Sen, M., Hien, N.Q., Phu, D.V., Quang, L.L., Zaman, K., Abad, L.V., Relleve, L., Aranilla, C.T., Racadio, C.D.T., Dela Rosa, A.M., Tahtat, D., Mahlous, M., Benamer, S., & Assia, N.-K., (2016) Antimicrobial and Antioxidant Properties of Oligosaccharides
In book: The Radiation Chemistry of Polysaccharides, Chapter: Chapter 9, Publisher: INTERNATIONAL ATOMIC ENERGY AGENCY, Editors: Saphwan Al-Assaf, Xavier Coqueret, Khairul Zaman Haji Mohd Dahlan, Murat Sen, Piotr Ulanski
Abad, L.V., Relleve, L.S., Aranilla, C.T., Aliganga, A.K., San Diego, C.M., & Dela Rosa, A.M., (2013) Antioxidant activity potential of gamma irradiated carrageenan
Polymer Degradation and Stability Volume 76
Tranquilan-Aranilla, C., Nasagawa, N., Bayquen, A., & Dela Rosa, A.M., (2012) Synthesis and characterization of carboxymethyl derivatives of kappa-carrageenan
Carbohydrate Polymers Volume 87, No. 2
Abad, L.V., Saiki, S., Nagasawa, N., Kudo, H., Katsumura, Y., & Dela Rosa, A.M., (2011) NMR analysis of fractionated irradiated κ-carrageenan oligomers as plant growth promoter
Radiation Physics and Chemistry Volume 80, No. 9
Abad, L.V., Kudo, H., Saiki, S., Nagasawa, N., Tamada, M., Fu, H., Muroya, Y., Lin, M., Katsumura, Y., Relleve, L.S., Aranilla, C.T., & Dela Rosa, A.M., (2010) Radiolysis studies of aqueous κ-carrageenan
Nuclear Instruments and Methods in Physics Research B Volume 268, No. 10
Abad, L.V., Kudo, H., Saiki, S., Nagasawa, N., Tamada, M., Katsumura, Y., Aranilla, C.T., Relleve, L.S., & Dela Rosa, A.M., (2009) Radiation degradation studies of carrageenans
Carbohydrate Polymers Volume 78, No. 1
Abad, L.V., Okabe, S., Shibayama, M., Kudo, H., Saiki, S., Aranilla, C., Relleve, L., & Dela Rosa, A., (2008) Comparative studies on the conformational change and aggregation behavior of irradiated carrageenans and agar by dynamic light scattering
International Journal of Biological Macromolecules Volume 42, No. 1
Relleve, L., Nagasawa, N., Luan, L.Q., Yagi, T., Aranilla, C., Abad, L., Kume, T., Yoshii, F., & Dela Rosa, A., (2005) Degradation of carrageenan by radiation
Polymer Degradation and Stability Volume 87, No. 3
Abad, L.V., Relleve, L.S., Aranilla, C.T., Aliganga, A.K., San Diego, C.M., & Dela Rosa, A.M., (2002) Natural antioxidants for radiation vulcanization of natural rubber latex
Polymer Degradation and Stability Volume 76, No. 2
Relleve, L., Yoshii, F., Dela Rosa, A., & Kume, T., (1999) Radiation-modified hydrogel based on poly(N-vinyl-2-pyrrolidone) and carrageenan
Die Angewandte Makromolekulare Chemie Volume 273, No. 1
Aranilla, C.T., Yoshii, F., Dela Rosa, A.M., & Makuuchi, K., (1999) Kappa-carrageenan-polyethylene oxide hydrogel blends prepared by gamma irradiation
Radiation Physics and Chemistry Volume 55, No. 2
Dela Rosa, A.M., & Kumakura, M., (1995) Trapping method of antibodies on surfaces of polymerizing discs for enzyme immunoassay
Analytica Chimica Acta Volume 312, No. 1
Dela Rosa, A.M., & Banzon, R.B., (1989) The effect of γ-radiation on smoked fish using short-term mutagenicity assays
Mutation Research Volume 223, No. 3
Relleve, L., Dela Rosa, A., Abad, L., Aranilla, C., & Aliganga, A.K., (2001) Biological Activities of Radiation-Degraded Carrageenan
Proceedings of the Takasaki Symposium on Radiation Processing of Natural Polymers, Takasaki, Japan
Dela Rosa, A.M., (2001) Status of Radiation Processing in the Philippines
Proceedings of the Takasaki Symposium on Radiation Processing of Natural Polymers, Takasaki, Japan
Papers Presented:
- Radiation Response of Philippine Natural Rubber Latex, International Symposium on Radiation Technology for Conservation of the Environment. Zakopane, Poland
- The Role of Proteins on the Thermal Oxidative Aging of Radiation Vulcanized Natural Rubber Latex, Second International Symposium on RVNRL Kuala Lumpur, Malaysia
- Radiation Processing: A Versatile Technology for Industry, 2nd Philippine Nuclear Congress. Manila Midtown Hotel, Philippines
- Radiation Vulcanization of Philippine Natural Rubber Latex, 12th Philippine Chemistry Congress, Iloilo City
- Radiation Vulcanization of Philippine Natural Rubber Latex, Second International Symposium on RVNRL. Kuala Lumpur, Malaysia
- Effects of Antioxidants on the Stability of Radiation Vulcanized Natural Rubber Latex, 6th Asian Chemistry Congress and 11th Philippine Chemistry Congress. Philippine Village Hotel, Manila
- Thermal Degradation Studies of Wood Polymer Composites, 6th Asian Chemistry Congress and 11th Philippine Chemistry Congress. Philippine Village Hotel, Manila
- Manipulating In Vitro Ruminal Fermentation Using Radiolyzed Carrageenan, 39th Annual Convention of the Philippine Society of Animal Science (PSAS). Marriot Hotel, Cebu City, Philippines
- Integrated Fruit Fly Management Program in Guimaras Island, Workshop on Fruit Fly Control Cooperation in the Asia-Pacific Region, Japan International Convention Center, Okinawa, Japan
- Radiation Processing of Carrageenan for Healthcare Applications, IAEA/RCA Workshop on Radiation Processing of Natural Polymers, Mumbai, India
- Properties of Radiation Synthesized Water Soluble Polymer-Carrageenan Hydrogels and their Applications, 5th Gel Symposium, Polymer Gels: Fundamentals and Nano-Fabrications, Kashiwa Campus, University of Tokyo, Japan
- Radiation Processing of Carrageenan Using Electron Beam, FNCA 2004 Workshop on Application of Electron Accelerator - EB Treatment of Flue Gases, Beijing, China
- Preparation of Carrageenan Oligomer by Radiation Degradation, 19th Chemistry Congress, Sarabia Manor Hotel, Iloilo City
- Sol-Gel Analysis of Crosslinked Polymers, 15th Philippine Chemistry Congress, Cebu City, Philippines
- Natural Antioxidants for Radiation Vulcanized Natural Rubber Latex, 2nd Research Coordination Meeting on Improvement of Physical Properties of RVNRL, Japan
- International Cooperation in Nuclear Science and Technology to Address Specific Harmful Algal Bloom Concerns, APEC-IOC Conference on Harmful Algal
- Management and Mitigation, Subic Freeport, Philippines
- Preparation and Characterization of Hydrogels Based on Radiation-Modified Carrageenan, 2nd Research Coordination Meeting on
- Radiation Processing of Indigenous Natural Polymers, Mumbai, India
- Preparation of New Hydrogels from Carrageenan
- Via Radiation Crosslinking, 15th Philippine Chemistry Congress, Cebu City, Philippines
- Strategies Toward the Commercialization of PZC-based 99mTc Generator in the Philippines, 2006 FNCA Workshop on the Utilization of Research Reactors, Manila, Philippines
- Isotope-Based Techniques in the Management of Toxic Algal Bloom, 2006 EAS Asian Seas Congress, Haikou City, PROC
- Biological Activities of Radiation-Degraded Carrageenan, Takasaki Symposium on Radiation Processing of Natural Polymers, Takasaki, Japan
- Status of Radiation Processing in the Philippines, Takasaki Symposium on Radiation Processing of Natural Polymers, Takasaki, Japan
Awards:
- Outstanding Young Scientist (Radiation Chemistry), National Academy of Science and Technology, 1985
- 3rd Place, Search for 2001 PCASTRD Outstanding R & D in Advance Technology, for the Technical Paper entitled "Radiation-Modified Carrageenan for Agricultural and Health Care Applications", Philippine Council for Advanced Science and Technology Research and Development, 2001 December 13