Scientist Profile

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Violeta P. Arida

Chemistry, Mapua Award for Achievement in Chemistry

Expertise: Chemistry

Dr. Violeta P. Arida is recognized for her important contributions in the field of developed an indigenous technology patented in 1987 for the manufacture of transparent soaps scented with floral and herbal essences. These transparent soaps are exported to the US and Japan.

Affiliation

Scientist III and Chief, Chemicals and Mineral Division, Industrial Technology Development Institute, Bicutan, Taguig, Metro Manila

Association

    • Chemical Society of the Philippines, Member
    • Integrated Chemist of the Philippines Inc., Member
    • PHILAAS, Member
    • Philippine Council of Chemists, Member
    • Philippine Pharmacautical Association, Member
    • Philippine-Japan Fellows Association, Director
    • Science Executive Association, Member
    • Philippine association of Technical Assistance Participants, Member
    • Philippine Federation of Japan Alumini (PHILFEJA), Director
    • Women Inventors Association of the Philippines (WIAPI), Director
    • NIST--PHILJAF.A Chapter, President
    • National Research Council of the Philippines, Fellow-member
    • Philippine Association for the Advancement of Science(PHILAAS), Fellow member
    • Integrated Chemists of the Philippines Member Chemical Society of the Philippines, Member
    • Philippine Pharmaceutical Association, Member

Employment

    • Science Research, Supervisor, 1974-1980
    • Chemical Research Dept., NIST, Chief, 1980
    • Senior Science Research, Specialist, 1980
    • Scientist IV, ?, 1964-1969
    • Chemicals and Mineral Division, ITDI, Scientist III and Chief, 1961-1964
    • Scientist, Supervising, 1969-1974
    • Research Chemist, ?, 1958-1961
    • Analytical Chemist, ?, 1957-1958
    • Scientific Assistant, ?, 1954-1957
    • Chemical Research Division, ITDI, Scientific Aide, 1953-1954

Award

    • Loyalty Service Award, NSTW, 1978
    • First Prize, NIST Kalinisan Award , Chemical Research Dept. ITDI, 1975
    • Third Prize, Outstanding Research Award , NSDB , 1980
    • Oustanding Research Award Third Prize, 1980 NSDB , 1981
    • Certification of Appreciation, , 1972
    • Presidential Merit Medal/Diploma of Merit and P1000. Cash, , 1971
    • Third Prize, Invention Category, Chemical Group , 1971 Invention Contest, 1971
    • Honor scroll for Meritotrious Contribution to PJS, NIST 67th Anniversary, 1968
    • Plaque of Appreciation as Member, Panel of evaluators, 1sf Visayas-Mindanao regional Creativity and Invetion Contest, PIC, 1972
    • Certificate of Appreciation , Filipino Invention Society Inc. Cebu Chapter, 1972
    • Certificate of Attendance, First National Seminar of Returned Participants, PHILJAFA-Japan Embassy, 1972
    • Mapua Award for Achievement in Chemistry, Mapua Chemical Society
    • First Prize for Development and Commercialization of Soapmaking Technologies, DOST Outstanding Technology Commercialization Award, 1988
    • Certification of Recognition, PIDI Invention Category for Transparent Soap and Process of Manufacture, 1987
    • Certification of Recognition, PIDI Creative Category for Open hearth Furnace for Powder Charcoal Production from Agri-Wastes, 1987
    • Certification of Recognition, PIDI Creative Category for Pedal soap Maker, 1987
    • First Prize for Continuous Fluidized Bed Gasification of Cellulosic Wastes for Power Generation, NSTA Outstanding Award, 1985
    • 2nd Prize, Chemical Creative Category for Improve Method for Industrial Salt Production, Philippine Inventor's Week Contest, 1985
    • 3rd Prize, Chemical Creative Category for Barangay Based Production of Laundry Soap by Cold Process, Philippine Inventor's Week Contest, 1985
    • Certificate of Recognition, PIDI , Crative Category for Combination Pedal and Motor Driven Mixing Apparatus, 1985
    • Certificate of Recognition, PIDI Invention Category for Conversion of Water Hyacinth into Fuel and Other Products Thereof, 1985
    • First. Awardee, Research Chair on Chemical Processing, Industrial Research Foundation, Inc. (IRF), 1984
    • Certificate of Recognition, RCTT/NSTA/UNFSSTD, 1984 My 25
    • 3rd Prize, Invention Category, Diesel Fuel Substitute from Coconut Oil and Process of Manufacture, Philippine Inventors Week Contest, 1984 F 24
    • 3rd Prize, Creative Category, Continuous Fluidized Bed Reactor for Continuous Charcoal Production, Philippine Inventor's Week Contest, 1983
    • First Prize and Cash Award(P1,000.00), Turning the Wheels of Industry Thru Science and Technology, KIST Anniversary Slogan Contest, 1983 Jl 1
    • 2nd prize, Production and Development of Diesel Fuel Substitute from Coconut Oil, NSTA Outstanding Research Award, 1982
    • The 1982 Outstanding Mapuan, Chemistry, National Association of Mapua Alumni Inc. (MAMA), 1982 D 1
    • Commendation Letter from Office of the President, Office of the President, 1981 N 17
    • 3rd Prize, Study on Production of High Quality Adsorbent from Tropical Plants, NSDB/Agency Awarder, 1980
    • 3rd prize (plaque, cash and certificate), NSDF2 Outstanding Research Awardee, 1979
    • Loyalty Science Award, NSDB National Science and Technology Week, 1978 Jl 14
    • Scientific Research Productivity Award 2nd prize (certificate and cash), NIST &5th Anniversary Celebration, 1978 Jl 1
    • Service Award, NIST 73rd Anniversary, 1978 Jl 1
    • 1st Prize,NIST Cleanliness Award , Chemical Research Department, ITDI, 1975 Jl 1
    • 3rd Prize Winner, Presidential Merit Medal, Diploma of Merit and P1,000 Cash Prize, Philippine Invention Contest, 1971Ap 16
    • NIST 67th Anniversary Award and honor Scroll for Meritorious Contribution, Philippine Journal of Science (IRES), 1968
    • Achievement in Chemistry, Chemical Society of Mapun Award, 1968

Research

    • Development of the Cold Process for the Production of Laundry Bar Soap from Coconut Fatty Acids (CFA) [Completed]
    • Production of Medium Chain Triglycerfdes from Coconut [Completed]
    • Development and Evaluation of Coconut. Fatty Alcohol Sulfate (CFAS) based Detergent and Alkyl Benzene Sulfonate (ABS) [Completed]
    • Production of Petroleum Fuel Substitutes by Catalytic Cracking of Coconut Oil [Completed]
    • Development of Process and Product for Transparent Soap Manufacture from Indigenous Materials. [Completed]
    • Patent for Transparent Soap and Process of Manufacture Invention Letters Patent [Completed]
    • Developed process has been transferred and the rightt for exclusive commercial production [Completed]
    • Fuels from Coconut Oil [Completed]
    • Diesel Fuel Substitute from Coconut 0il and Process of Manufacture [Completed]
    • Pre-pilot Plant Studies on the Production of Coconut Monoethanolamide (CMA) [Completed]
    • Pilot Plant Production and Development of Substitute from Coconut Oil [Completed]
    • Production and Development of a Diesel Fuel Substitute from Coconut
    • Project presented at the Poster Session, CHEMRAWN 1 [Completed]
    • Diesel Fuel Substitute from Coconut Oil and Process of Manufacture. Invention Letters patent [Completed]
    • Preparation of Coconut Monoethanolamide (CMA) [Completed]
    • Preparation of Trilaurin. Chromatographic Study of Reesteriflcatlon of Methyl Laurate with Glycer [Completed]
    • Process of Producing Sulfated Monoglyceride Detergents from Coconut Oil [Completed]
    • Sulfated Monoglyceride Detergents for the Philippines. [Completed]
    • Coconut Fatty Acid Esters by Alcoholysis [Completed]
    • Soaps tock Utilization for household Soap [(unpublished)]
    • Alkanolamides from Coconut Methyl Esters I [Completed]
    • Development of Process for the Production of Precipitated Calcium Carbonate From Calcium Chloride and Recovery of Ammonium Chloride as By-product [Completed]
    • Production of Activated Carbon [Completed]
    • Production of Activated Carbon [Completed]
    • An Investigation on the Economic Feasibility of Producing Natural Dyes from Local Sources (unpublished) [Completed]
    • An Inter-Agency Study on the Musa Hybrid, [Completed]
    • Prearation of Aluminum Sulfate (for publication) [Completed]
    • Production of Powered Carageenan (Conforme Agreement) [Completed]
    • Charcoal Production from Sawdust and Pilot Plant Production of Activated Carbon by Circular Fluidized Bed Method [Completed]
    • Modified Starch Project, 1988 Je-Ag [Completed]
    • Development of Short and Long Term Development Programs 1988-1989 S [Completed]
    • Extraction and Development of an Antidiabetic Drug from Leaves of Lagerstromeia speciosa (Banaba) 1989 Ap 1 - S [Completed]
    • Bench-Scale Production and Application Testing of Modified starches from Cassava 1989 Mr 1 - 1990 F 28 [Completed]
    • Industrial Utilization of rice Husks for the Production of Silicate Chemicals 1989 Ap 15 - 1990 Mr 15 [Completed]
    • Bench-scale production of Selected Analytical Reagent (AR) Grade Chemicals 1988 Jl 1 - 1990 Je 30 [Completed]
    • Local Production of USP Grade Sodium Chloride and Dextrose for IV Fluids 1986 - 1987 Extension of 3 Months 1988 Mr 1 [Completed]
    • Development of Process for Preparation of Biodegradable Sucro-Ester Detergent 1988 Ja-Je [Completed]
    • Simplified Technology for Laundry Soap Bar Production using Coconut Fatty Acids (C8-C16) as Fat Stock 1987 Ja-My 31 [Completed]
    • Consultancy and Technical Services on Soapmaking 1987 F 15 - Jl 15 [Completed]
    • Counsultancy and Technical Services on Soapmaking 1987 Mr-S [Completed]
    • Pilot Plant Production of AC by Circular Fluidized Bed Method Using Coconut Shell Charcoal Fines 1987 Ap 20 - Ag 20 [Completed]
    • Transparent Bath Soap and Process of MAnufacture 1986 My 19 [Completed]
    • Production of Bleaching Clay from Bentonite 1986 Ag-S [Completed]
    • Development of CFA-based Detergent Bar Formulation 1986 F 16 - Je 15 [Completed]
    • Development of Process for Local Production and Synthesis of Specialty Cosmetic Chemical: a) Aluminum Chlorohydrate, b) Glyceryl Monostearate c) Mineral Oil (1984 F - 1985; 1985 D - 1986 F) [Completed]
    • Industrial Salt Production 1986 Ja-Je [Completed]
    • Industrial Salt Production 1985 D - 1986 My [Completed]
    • Industrial Salt 1986 Mr-Je [Completed]
    • Analytical and testing Procedures for Activaed Carbon 1986 Jl [Completed]
    • Soapmaking and Edible Oil Making 1986 Jl - 1988 Je [Completed]
    • Soapmaking 1985 Mr - 1986;1986 Mr - S [Completed]
    • Soapmaking 1986 F - Jl [Completed]
    • Diesel Fuel Production from coconut Oil; Process simplification Studies for the Commercial Production of diesel Fuel from Coconut Oil using the NIST Process 1986 O - 1986 F [Completed]
    • Production of Liquid (Syrup) and Solid (Candy) Cough Medication 1985 O - 1986 Ja [Completed]
    • Pilot Plant Production of Activated Carbon Using Sawdust, Coirdust and Coconut Shell 1985 Jl-Ag [Completed]
    • Industrial Salt Production 1984 D - 1985 My [Completed]
    • Improvement of Technology for Charcoal Production from Ipil-ipil Wood 1984 Ap - 1985 D [Completed]
    • Soapmaking by the Cold Process 1984 [Completed]
    • Laundry Soap Production by the Cold Process and Promotion Distribution and Sale thru KADIWA Centers for Market Acceptance Testing 1983 S - 1984 Mr [Completed]
    • Charcoal Production from Ipil-ipil Wood 1983 S - D [Completed]
    • Improved Solar Saltmaking Technology 1983 N -1984 My 31 [Completed]
    • Production of Petroleum Fuel Substitutes from Coconut Oil 1983 Jl - D [Completed]
    • Production of High Quality Activated carbon from Tropical Plants 1976 - 1981 [Completed]
    • Establishment of Powdered Activated Carbon Plants in the Philippines 1983 - 1985 [Completed]
    • Production of Industrial and Urban Wastes into Usable Products; Gasification of Agri-Industrial Wastes for Power Generation 1980 - 1985 [Completed]
    • Production of Slow Release Type Fertilizer from Philippine Dolomite and Rice Husk 1985 - 1988 [Completed]

Papers Presented

    • The Essential Oil Industry in the Philippines: Status and Prospects, Essential Oil Processing and Utilization, Bangkok, Thailand
    • Recovery and Utilization of Other Products and Chemical By products from Saltmaking , Natural resources: Science and Tecnology Status Holiday Inn, Manila
    • II. Granulated Active Carbon , International Utilization of Tropical Plants. Tsukuba City, Japan
    • Processing of products and by-products of spice crops, PCAR Research Workshop on Industrial Oils and Spices, UPLB, College, Laguna
    • Development of Diesel Fuel. Substitute from Coconut Oil, First World Conference on Alternative Sources of Energy. Miami Beach Florida, USA.
    • Production of Petroleum Fuel Substitutes by Catalytic Cracking of Coconut oil, 7th Miama International Conference on Alternative Energy Sources. Miami Beach, Florida, USA
    • Production of Petroleum Fuel Substitutes by Catalytic Cracking of Coconut Oil. , Asean Conference on Energy from Biomass. Fenang, Malaysia.
    • International Symposium on Advanced Industrial Utilization of Tropical Plants , Tsukuba Science City, Japan.
    • Continuous Fluidized Bed Gasification of Cellulosic Wastes for Power Generation. , The 1st International Power Conference.Beijing, China.
    • Continuous Fluidized Bed Glasification of Cellulosic Wastes for Power Generation. Seminar on Advanced Utilization of Biomass November , Sapporo, Japan.
    • Production of Medium Chain Triglycerides from Coconut 0i1. Symposium on Medical and Nutritional Aspects of Coconut Oil. , PCA, PCRDF, UCAP, DOST, PCHRD and FNRI
    • Production of Petroleum Fuel Substitutes by Catalytic Cracking of Coconut Oil. , 9th Miami International Conference on Alternative Sources of Energy. Miami Beach Florida, USA.
    • By-products and its uses. , Philippines Recommends for the salt Industry 1981 (PCARR Technical Bulletin Series No.48)
    • Pilot Plant Production and Development of Diesel Fuel Substitue from Coconut Oil, 5th Miami International Conference on Alternative Energy Sources. Miami Beach, Florida, USA
    • Processing and utilization of products and by-products of industrial oils, PCAR Research Workshop on Industrial Oils and Spices,UPLB,College, Laguna
    • Essential oil industry in the Philippines, Regional Workshop Seminar on Essential Oil Processing and Utilization, Bangkok, Thailand, 0
    • Production of Diesel Fuel Substitutes; from Coconut Oil , US--ASEAN Seminar on Energy Technology, Bandung, Indonesia
    • Production of Petroleum Fuel Substitutes by Catalytic Cracking of Coconut Oil. , 7th Miami International Conference on Alternative Sources of Energy. Miami Beach Florida, USA
    • Theory of salt-making from solutions. Philippines Recommends for the Salt Industry, (PCARR Technical Bulletin Series No.48)
    • Pilot Plant Production and Development of Diesel Fuel Substitute from Coconut Oil , 5th Miami International Conference on Alternative Sources of Energy,Miami Beach Florida, USA
    • Production of High quality absorbents from tropical plants. II. Granulated activated carbon., ITIT International Symposium on advance Industrial Utilization of Tropical Plants Tsukuba Science City, Ibaraki, Tokyo, Japan
    • Recovery and utilization of other salt products and plants, Seminar on Mineral Resources Science and Technology Status, Makati, Metro Manila
    • Salt By-products: Processing and Utilization 8-9 November 1978., Non metallic Mineral Resources Development, Caliraya, Laguna
    • Processing and Utilization of Products and By products of Industrial Oils , Philippine Council of Agricultural Research Workshop on Industrial Oils and Spices, University of the Philippines, Los Banos, Laguna .
    • Future Sources of Organic raw Materials, Toronto, Canada

Education

    • University of New South Wales, Australia,, Chemistry Research Techniques, 1970
    • Adamson University, M.S. Chemistry, 1965
    • MIT, B.S. Chemistry, 1957
    • UST, B.S Pharmacy, 1952

Publication

    • Cosme, L.L1., Lacebal, L.O., Arida, V.P. , (1961) Chronomatographic determination of glutamic acid in some Philippine edible beans and nuts
    • Philippine Journal of Science Volume 90, No. 4
    • Cosme, L.L1., Maranon, J., Arida, V.P., (1958 ) Distribution of glycosides in Thevetia peruviana (Pers). Merr, and Nerium indicum Mill
    • Philippine Journal of Science Volume 87, No. 1
    • Arida, V.P., Lubi, E.V., Fumar, O.C., Serrano, D., (1980) Improvement of th drying property of lumbang oil. III. Low temperature crystallization
    • Philippine Journal of Science Volume 109, No. 3-4
    • Arida, V.P., (1982) Products of industrial oils and by products: its processing and utilization
    • NSTA Technology Journal Volume 7, No. 1
    • Protacio, A.C., Arida, V.P., Halcon, N., Mendoza, M., Santos, T.M. and Serrano, D. , (1991) The Philippines Recommends for the Salt Industry
    • Pcarr Tech. Bulletin , No. 78
    • Binlayo, D.L., Arida, V.P., Magyani, D.F., Caro, C.Q., (1981) Improvement of the drying property of lumbang oil. III. Restrification of highly unsaturated fatty acids with glycerol
    • Philippine Journal of science Volume 110, No. 1-2
    • Arida, V.P., Borlaza, F.C., Schmitt, W.J. , (1967 S) Ozonolysis of Phil. Unsaturated Oils. I. Rice Bran Oil
    • Philippine Journal of Science Volume 96, No. 3
    • Arida, V.P., Borlaza, F.C., Schmitt, W.J., (1965) Sulfated monoglyceride detergents for the Philippines
    • Philippines Journal of Science Volume 94, No. 3
    • Arida, V.P., Borlaza, F.C., Schmitt, W.J., (1967) Ozonolysis of the Philippine unsaturated oils
    • Philippine Journal of Science Volume 96, No. 3
    • Aliwalas, A.R., Arida, V.P., Borlaza, F.C., (1969) Coconut fatty acid ester by alcoholysis
    • Philippine Journal of Science Volume 98, No. 1
    • Obach, R.C., Arida, V.P., Porras, R.C., (1972) Improvement of the drying property of lubang oil. I. Formation of urea complexes
    • Philippine Journal of Science Volume 102, No. 1-2
    • Arida, V.P., Borlaza, F.C., Schmitt, W.J., (1972) Oronolysis of Philippine unsaturated oils. II. Lumbang [Aleurites moluccana(Linn,) Willd] oil
    • Philippine Journal of Science Volume 101, No. 1-2
    • Obach, R.C., Arida, V.P., Balanquit, E.G., Chua, S.A.Jr., (1973) Improvement of the drying property of lumbang oil. II. Liquid-liquid segregation with furfural
    • Philippine Journal of Science Volume 102, No. 1-2
    • Arida, V.P., Legaspi, S.L., Insua, S.A., Ferrer, R.G., (1973) Preparation of trilaurin: chromatographic study of resterification of methyl laurate with glycerol
    • Philippine Journal of Science Volume 102, No. 1-2
    • Arida, V.P., Cuadra, F.B., Legaspi, S.L., (1979) Isolation and purification of food grade coconut monoglycerides
    • Philippine Journal of Coconut Studies Volume 4, No. 3
    • Arida, V.P., Binlayo, D.L., Chua, S.A.Jr. , (1979) Preparation of coconut monoethanolamide (CMA)
    • Philippine Journal of Coconut studies Volume 4, No. 3
    • Arida, V.P., Borlaza, F.C., Guererro, R.C., () III. Corn Oil, Castor Oil and Peanut Oil
    • Unpublish
    • Arida, V.P., Lubi, E. , () Methanolysis of Lumbang Oil
    • Philippine Journal of Science
    • Arida, V.P., Uy, C. , () Preparation of Fatty Acids from Lumbang Oil
    • unpublished
    • Arida, V.P., Ang, A.U., (1982) Urea Complexation of Lumbang Oil Fatty Acids
    • Philippine Journal of Science Volume 3, No. 3-2
    • Arida, V.P., Gonzales, A.L., Atienza, O.G., Pugal, D.L. and NIST/GIDLH Members, (1987 Ap-Je) Continuous Fluidized Bed Gasification of Cellulosic Wastes for Power Generation
    • Philippine Journal of Science Volume 116, No. 2
    • Arida, V.P., Atienza, O.G., Quilao, T.A., Caballero, A.R., Laxamana, J.S., Pugal, D.L., uce, C.P. , (1987 Jl - D) Production of High Quality Adsorbent Charcoal from Philippine Woods I. Powdered Activated Carbon
    • Philippine Journal of Science Volume 116, No. 3
    • Arida, V.P. , (1985 Je) Feasiblity Study on the Establishment of Powdered Activated Carbon Plants in the Republic of the Philippines. JICA-KIST.
    • Philippine Counterpart Project Leader
    • Miura, M., Arida, V.P. et.al , (1984) Gasification of Cassava Bagasse Refuse
    • Journal of the Japan Wood Research Society Volume 30, No. 4
    • Arida, V.P., Atienza, O. G., Quilao, T., Caballero, A. R., Laxaman, J., Guce, C. , (1987) Production of High Quality Adsorbent Charcoal from Philippine Woods. I. Powdered Activated Carbon. .
    • Philippine Journal of Science Volume 116, No. 3
    • Arida, V.P., Atlenza, O.G., Quilao, T., Caballero, A., Laxaman, J., Pugal, D. and Gucci, C., (1980 S) II. Granulated Activated Carbon
    • Philippine Journal of Science (in press).
    • Cosme, L.L1., Arida, V.P., and Maranon, J., (1958) Distribution of Glucosides in Thevetia Peruviana (Pers. Marr.) and Nercerium Indicum (Mill)
    • Philipine Journal of Science , No. 87
    • Arida, V.P. , (1982 J-Mr) Products of Industrial Oils and By-products: Its processing and Utilization.
    • NSTA Technology Journal Volume 7, No. 1
    • Arida, V.P. , (1982) Spice Crops: Processing of Its Products and By-products
    • NSTA Technology Journal Volume 7, No. 2
    • Arida, V.P., Co-author and Member NSTA Technical Advisory Committe., (1982 ) Hydrocarbon Producing Plants (Project of NSTA, Philippines and ESCAP Regional Centre for Technology Transfer, Bangalore, India)
    • UNFSSTD
    • Arida, V.P., (1987 Je) Laboratory Studies on the Production of Coconut Diethanolamide (CDA)
    • Philippine Journal of Coconut Studies Volume 12, No. 1
    • Arida, V.P., (1986 Je) Production of Petroleum Fuel Substitutes by Catalytic Cracking of Coconut Oil
    • Philippine Journal of Coconut Studies Volume 11, No. 1

Trainings

    • 19th World Congress of the International Society for Fat Research, 1988 S 26-30, Tokyo, Japan
    • 27th Annual Meeting of the Japan Oil Chemist Society, 1988 S 26-30, Tokyo, Japan
    • 9th Miami International Conference on Alternative Energy Sources, 1987 D 10-15, Miami Beach Florida, USA
    • Asean Conference on Energy from Biomass, 1986 O 13-15, Penang, Malaysia
    • Advance Utilization of Biomass, 1986 N 9-11, Sapporo, Japan
    • 7th Miami International Conference on Alternative Energy Sources, 1985 D 9-11, Miami Beach Florida, USA
    • Production and Processing of Hydrocarbon Producing Plants, 1984 My 21-25, Manila, Philippines
    • Chemical Research Applied to World Needs, 1984 Je 25-29, The Haque, Netherlands
    • Resource Material Conversion, 1984 Je 25-29, The Haque, Netherlands
    • 1st Energy Congress '83, 1983 Ag 18-19, Manila, Philippines
    • Philippine Chamber of Commerce and Industry, 1983 Ag 18-19, Manila, Philippines
    • Technical Congress, Technology for the People, 1983 N 21-27, UNIDO/TRC
    • US-ASEAN Seminar on Energy Technology, 1982 Je 7-18, Bandung, Indonesia
    • 7th National Convention of the Royal Australian Chemical Institute, 1982 Ag 23-27, Canberra , Australia
    • Chemistry and World Food Supplies, the new Frontiers, 1982 Ag 6-10, Manila, Philippines
    • First Asian Pacific Chemistry Congress, 1981 Ap 26 - My 1, Singapore
    • International Symposium on Advance Industrial Utilization of Tropical Plants, 1980 S 1-4, Tsukuba Science City, Japan
    • Poster Session, Chemical Research Applied to World Needs, 1978 Jl 1-4, Toronto, Canada
    • Future Sources of Organic raw Materials, 1978 Jl 1-4, Toronto, Canada
    • Royal Australian Chemical Instiitute(RACI) National Convention, 1970 Ag, National University, Canberra, Australia
    • Proceedings International Symposium on Advanced Industrial. Utilization of Tropical Plants, 19380 S, Tsukuba Science City, Japan
    • US-ASEAN Energy Technology, 1982 Je 7-18, Bandung, Indonesia
    • CHEMRAWN II International Conference on Chemistry and World Food Supplies, 1982 D 6-10, The New Frontiers, Manila, Philippines
    • 8th Miami International Conference on Alternative Sources of Energy, 1982 D 11-15, Miami Beach Florida, USA