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  - Bachelor of Science in Pharmacy , Pharmacy, Prince of Songkla University, 1992
  - Master of Science in Pharmacy, Pharmacognosy, Chulalongkorn University, 1995
  - Doktor der Naturwissenschaften, Biochemistry, Technical University of Munich, 2001

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  - ËÑÇ¢éÍÇԨѷÕèʹ㨠¤×Í ¡ÒÃÈÖ¡ÉÒªÕÇÊѧà¤ÃÒÐËì¢Í§ÊÒ÷صÔÂÀÙÁÔ㹾ת àªè¹ à·ÍÃì»Õ¹ áÍŤÒÅÍ´ì à»ç¹µé¹ ÍÒÈÑÂà·¤¹Ô¤·Ò§à¤ÁÕ ªÕÇà¤ÁÕ áÅÐͳ٪ÕÇÇÔ·ÂÒ ¹Í¡¨Ò¡¹ÕéÂѧʹ㨧ҹÇԨѷÕèãªéªÕÇà¤ÁÕà»ç¹°Ò¹ ¤×Í ¡ÒÃÈÖ¡ÉÒ¡Åä¡¡ÒÃÍÍ¡Ä·¸Ôì¢Í§ÊÒèҡ¸ÃÃÁªÒµÔ àªè¹ ¡Åä¡·Õèà¡ÕèÂÇ¢éͧ¡Ñºâ»Ãá¡ÃÁ¡ÒõÒ¢ͧà«ÅÅì ÊÓËÃѺÊÒõéÒ¹ÁÐàÃç§ ¡Åä¡¡ÒÃÂѺÂÑ駡ÒÃÊÃéÒ§ÊÒÃÍÑ¡àʺ à»ç¹µé¹ ¹Í¡¨Ò¡¹ÕéÂѧÁÕ¡ÒÃÊÃéÒ§ÊÒÃÀÙÁÔµéÒ¹·Ò¹µèÍÊÒ÷Õèá¡ä´é¨Ò¡¸ÃÃÁªÒµÔ à¾×è;Ѳ¹Òä»à»ç¹à¤Ã×èͧÁ×͵ÃǨÊͺ¤Ø³ÀÒ¾¢Í§ÊÁعä¾Ã ÍÕ¡´éÇÂ
Our research interest is based on pharmaceutical biotechnology, especially in natural products. Our research topics are biosynthetic study of secondary metablites, molecular biology, plant tissue culture, purification and characterization of proteins and production of monoclonal antibody. All facilities served for post-doctoral, Ph.D students, master students and undergraduate students. Our grants support are provided such as Prince of Songkla University, National Research Council of Thailand, the Thailand Research Fund, the Commission of Higher Education.


ÊÒ¢Ò·ÕèàªÕèÂǪҭ ::
  - Biosynthesis of plant secondary metabolites; plant tissue culture; plant molecular biology; expression and purification of protein; monoclonal antibody production


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  º·¤ÇÒÁÇԨѵվÔÁ¾ìã¹ÇÒÃÊÒÃÇÔªÒ¡Òà ::
  1. Premprasert, C., Tewtrakul, S., Plubrukarn, A and Wungsintaweekul, J. Anti-inflammatory activity of diterpenes from Croton stellatopilosus on LPS-induced RAW264.7 cells.  Journal of Natural Medicines, 67:  174-181, 2013.
  2. Kongduang, D., Wungsintaweekul, J. and De-Eknamkul, W. Established GC-FID for simultaneous determination of diterpenes and phytosterols in Plaunoi (Croton stellatopilosus Ohba).  Songklanagarind Journal of Science and Technology, 34(6):  623-628, 2012.
  3. Wungsintaweekul, J, Choo-malee, Charoonratana, C. and Keawpradub, N. Methyl jasmonate and yeast extract stimulate mitragynine production of Mitragyna speciosa (Roxb.)Korth. shoot culture.  Biotechnology Letters, 34(10):  1945-1950, 2012.
  4. Songkro, S., Pichayakorn, W., Sungkarak, S. and Wungsintaweekul, J.  Investigation of Plaunoi-loaded micro/nanoemulsions for the treatment of dermatitis: formulation, evaluation and skin irritation studies.  J. Drug.Del.Sci.Tech. , 21(5):  401-410, 2011.
  5. Wungsintaweekul, J., Sitthithaworn, W., Putalun, W. Pfeifhoffer, H.W. and Brantner, A. Antimicrobial, antioxidant activities and chemical composition of selected Thai spices. .  Songklanakarin J. Sci. Technol., 32(6):  589-598, 2010.
  6. Sitthithaworn, W., Wungsintaweekul, J., Sitisuntipong, T., Charoonratana, T., Ebizuka, Y. and De-Eknamkul, W. Cloning of 1-deoxy-D-xylulose 5-phosphate synthase from Croton stellatopilosus and expression with 2C-methyl-D-erythritol 4-phosphate synthase and geranylgeranyl diphosphate synthase, key enzymes in plaunotol biosynthesis. .  J. Plant Physiol., 167(4):  292-300, 2010.
  7. Songkro, S., Sirikatitham, A., Sungkarak, S., Buaking, K., Wungsintaweekul,J., Maneewan, D. and Oungbho, K.  Characterization of Aromatherapy massage oils prepared from virgin coconut oil and some essential oils..  J. Am. Oil Chem. Soc. , 87(1):  93-107, 2010.
  8. Treetharnmathurot, B., Ovartlarnporn, C., Wungsintaweekul, J., Duncan R. and Wiwattanapatapee, R.  Effect of PEG molecular weight and linking chemistry on the biological activity and thermal stability of PEGylated trypsin. .  Int. J. Pharmaceutics, 357:  252-259, 2008.
  9. Wungsintaweekul, J., Sirisuntipong, T., Kongduang, D., Losuphanporn, T., Ounaroon, A., Tansakul, P. and De-Eknamkul, W.  Transcription profiles of genes encoding 1-deoxy-D-xylulose 5-phosphate synthase and 2C-methyl-D-erythritol 4-phosphate synthase in plaunotol biosynthesis from Croton stellatopilosus. .  Biol. Pharm. Bull. , 31(5):  852-856, 2008.
  10. Kongduang, D., Wungsintaweekul, J. and De-Eknamkul, W.  Biosynthesis of -sitosterol and stigmasterol proceeds exclusively via the mevalonate pathway in cell suspension cultures of Croton stellatopilosus.  Tetrahedron Lett. , 49:  4067-4072, 2008.
  11. Songkro, S., Wungsintaweekul, J. and Chartwaingam, S.  Investigation of enhancing activity and skin irritation of Zingiber officinale, Zingiber cassumunar and Curcuma zedoaria.  J. Drug Del. Sci. Tech, 18(3):  169-179, 2008.
  12. Phongprueksapattana, S., Putalun, W., Keawpradub, N., Wungsintaweekul, J Mitragyna speciosa: Hairy Root Culture for Triterpenoid Production and High Yield of Mitragynine by Regenerated Plants.  Z. Naturforsch., 63C:  691-698 , 2008.
  13. Wungsintaweekul, J., Sriyapai, C., Kaewkerd, S., Tewtrakul, S., Kongduang, D. and De-Eknamkul, W.  Establishment of Croton stellatopilosus suspension culture for geranylgeraniol production and diterpenoid biosynthesis. .  Z. Naturforsch. , 62C:  389-396, 2007.
  14. Chatsiriwej, N., Wungsintaweekul, J. and Panichayupakaranant, P.  Anthraquinone production in Senna alata root cultures..  Pharm. Biol., 44:  416-420, 2006.
  15. Wungsintaweekul , J. and De-Eknamkul, W.  Biosynthesis of plaunotol in Croton stellatopilosus proceeds via the deoxyxylulose phosphate pathway.  Tetrahedron Lett. , 46(12):  2125-2128, 2005.
  16. Steinbacher S, Kaiser J, Wungsintaweekul J, Hecht S, Eisenreich W, Gerhardt S, Bacher A, Rohdich F. Structure of 2C-methyl-d-erythritol-2,4-cyclodiphosphate synthase involved in mevalonate-independent biosynthesis of isoprenoids..  Journal of Molecular Biology , 316(1):  79-88, 2002.
  17. Fellermeier, M., Raschke, M., Sagner, S., Wungsintaweekul, J., Schuhr, C.A., Hecht, S., Radykewicz, T., Adam, P., Rohdich, F., Eisenreich, W., Bacher, A., Arigoni, D. and Zenk, M.H. Studies on the nonmevalonate pathway of terpene biosynthesis The role of 2C-methyl-D-erythritol 2,4-cyclodiphosphate in plants.  European Journal of Biochemistry, 268:  6302-6310, 2001.
  18. Hecht, S., Wungsintaweekul, J., Rohdich, F., Kis, K., Radykewicz, T., Schuhr, C.A., Eisenreich, W., Richter, G. and Bacher, A. Biosynthesis of terpenoids: Efficient multistep biotransformation procedure affording isotope-labeled 2C-methyl-D-erytritol 4-phosphate using recombinant 2C-methyl-D-erythritol 4-phosphate synthase.  J. Org. Chem., 66:  7770-7775, 2001.
  19. Schuhr, C., Hecht, S., Kis, K., Eisenreich, W., Wungsintaweekul, J., Bacher, A. and Rohdich, F. Studies on the non-mevalonate pathway- Preparation and properties of isotope-labeled 2C-methyl-D-erythritol 2,4-cyclodiphosphate.  Eur. J. Org. Chem., -:  3221-3226, 2001.
  20. Hecht S, Kis K, Eisenreich W, Amslinger S, Wungsintaweekul J, Herz S, Rohdich F, Bacher A. Enzyme-assisted preparation of isotope-labeled 1-deoxy-d-xylulose 5-phosphate..  J. Org. Chem., 66(11):  3948-3952, 2001.
  21. Rohdich, F., Eisenreich, W., Wungsintaweekul, J., Hecht, S., Schuhr, C.A. and Bacher, A. Biosynthesis of terpenoids: 2C-Methyl-D-erythritol 2,4-cyclodiphosphate synthase (IspF) from Plasmodium falciparum.  Eur. J. Biochem., 268:  3190-3197, 2001.
  22. Wungsintaweekul, J., Herz, S., Hecht, S., Eisenreich, W., Feicht, R., Rohdich, F., Bacher, A and Zenk, M.H. Phosphorylation of 1-deoxy-D-xylulose by D-xylulokinase of Escherichia coli.  Eur. J. Biochem., 267:  310-316, 2001.
  23. Kis, K., Wungsintaweekul, J., Eisenreich, W., Zenk, M.H. and Bacher, A. An efficient preparation of 2-C-methyl-D-erythritol 4-phosphoric acid and its derivatives.  J.org.Chem., 65:  587-592, 2000.
  24. Radykewicz, T., Rohdich, F., Wungsintaweekul, J., Herz, S., Kis, K., Eisenreich, W., Bacher, A., Zenk, M.H. and Arigoni, D.  Biosynthesis of terpenoids: 1-deoxy-D-xylulose 5-phosphate reductoisomerase from Escherichia coli is a class B dehydrogenase.  FEBS Letters, 465:  157-160, 2000.
  25. Lüttgen, H., Rohdich, F., Herz, S., Wungsintaweekul, J., Hecht, S., Schuhr, C.A., Fellermeier, M., Sagner, S., Zenk, M.H., Bacher, A. and Eisenreich, W. Biosynthesis of terpenoids: YchB protein of Escherichia coli phosphorylates the 2-hydroxy group of 4-diphosphocytidyl-2C-methyl-D-erythritol.  Proc. Natl. Acad. Sci. USA, 97:  1062-1067, 2000.
  26. Herz, S., Wungsintaweekul, J., Schuhr, C.A., Hecht, S., Lüttgen, H., Sagner, S., Fellermeier, M., Eisenreich, W., Zenk, M.H., Bacher, A. and Rohdich, F. Biosynthesis of terpenoids: YgbB protein converts 4-diphosphocytidyl-2C-methyl-D-erythritol 2-phosphate to 2C-methyl-D-erythritol 2,4-cyclodiphosphate.  Proc. Natl. Acad. Sci. USA, 97:  2486-2490, 2000.
  27. Rohdich, F., Wungsintaweekul, J., Eisenreich, W., Richter, G., Schuhr, C.A., Hecht, S., Zenk, M.H. and Bacher, A. Biosynthesis of terpenoids: 4-diphosphocytidyl-2C-methyl-D-erythritol synthase of Arabidopsis thaliana.  Proc. Natl. Acad. Sci. USA, 97:  6451-6456, 2000.
  28. Rohdich, F.. Wungsintaweekul, J., Lÿttgen, H., Fischer, M., Eisenreich, W., Schuhr, C.A., Fellermeier, M., Schramek, N., Zenk, M.H. and Bacher, A. Biosynthesis of terpenoids: 4-diphosphocytidyl-2C-methyl-D-erythritol kinase from tomato.  Proc. Natl. Acad. Sci. USA, 97:  8251-8256, 2000.
  29. Rohdich, F., Schuhr, C.A., Hecht, S., Herz, S., Wungsintaweekul, J., Eisenreich, W., Zenk. M.H. and Bacher, A. Biosynthesis of isoprenoids. A rapid method for the preparation of isotope-labeled 4-diphosphocytidyl-2C-methyl-D-erythritol.  J. Am. Chem. Soc, 122:  9571-9574, 2000.
  30. Rohdich, F., Wungsintaweekul, J., Fellermeier, M., Sagner, S., Herz, S., Kis, K., Eisenreich,W. Bacher, A. and Zenk, M.H. Cytidine 5‘-triphosphate-dependent biosynthesis of isoprenoid: YgbP protein of Escherichia coli catalyzes the formation of 4-diphosphocytidyl-2-C-methylerythritol.  Proc. Natl. Acad. Sci. USA, 96:  11758-11763, 1999.
  31. Arigoni, A., Giner, J-L., Sagner, S., Wungsintaweekul, J., Zenk, M.H., Kis, K., Bacher, A. and Eisenreich, W.  Stereochemical course of the reduction step in the formation of 2C-methylerythritol from the terpene precursor 1-deoxyxylulose in higher plants.  Chem. Commun., -:  1127-1128, 1999.
  º·¤ÇÒÁÇÔ¨ÑÂàʹÍã¹·Õè»ÃЪØÁÇÔªÒ¡ÒÃáÅÐÁÕ¡ÒþÔÁ¾ìÃÇÁàÅèÁ ::
  1. Kongduang, D., Wungsintaweekul, J., Sitthithaworn, W., De-Eknamkul, W.. Biosynthesis of bioactive acyclic diterpenoids and phytosterols in Croton stellatopilosus.  PSNA2011.  112, Fairmont Orchid Hawaii,  10-15 December, 2011
  2. Wungsintaweekul, J., Choo-malee, J., Keawpradub, N.. Methyl jasmonate and yeast extract stimulate mitragynine production in shoot culture of Mitragyna speciosa (Roxb.) Korth..  PSNA2011.  187, Fairmont Orchid Hawaii,  10-15 December, 2011
  3. Sitthithaworn, W., Wungsintaweekul, J., Sirisuntipong, T., Charoonratana, T., Ebizuka, Y. and De-Eknamkul, W. . Expression of 1-deoxy-D-xylulose 5-phosphate synthase , 2C-methyl-D-erythritol 4-phosphate synthase and geranylgeraniol diphosphate synthase, key enzymes of plaunotol biosynthesis in Croton stellatopilosus.  PSNA2011.  188, Fairmont Orchid Hawaii,  10-15 December, 2011
  4. Charoonratana, T., Wungsintaweekul, J.. Mitragynine biosynthesis: Metabolite profiling and mRNA expression of the early steps gene in Mitragyna speciosa (Roxb.)Korth..  PSNA2011.  188, Fairmont Orchid Hawaii,  10-15 December, 2011
  5. Pramprasert, C., Tewtrakul, S., Wungsintaweekul, J.. Inhibitory effect of diterpenes from C. stellatopilosus on nitric oxide production in murine macrophage RAW 264.7 cells.  UK PharmSci 2011.  -, East Midlands Conference Centre,  31 August, 2011
  6. Charoonratana, T., Keawpradub, N.and Wungsintaweekul,J.. cDNA cloning andfunctional charcaterization of gene encoding tryptophan decarboxylase from Mitragyna speciosa.  CDD2010 The first current drug development .  15-18, Woraburi Resort and Spa, Phuket,  6-8 May, 2010
  7. Kongduang, D., Wungsintaweekul, J. and De-Eknamkul, W.. Simultaneous determination of diterpenes and phytosterols in leaf, callus, and suspension cultures of Croton stellatopilosus by GC-FID.  CDD2010 The first current drug development.  63-68, Woraburi Resort and Spa, Phuket,  6-8 May, 2010
  8. Pathompak, P. and Wungsintaweekul, J.. cDNA cloning of anthranilate synthase alpha-subunit from Mitragyna speciosa.  CDD2010 The first current drug development.  84-86, Woraburi Resort and Spa, Phuket,  6-8 May, 2010
  9. Choo-malee, J., Keawpradub, N., and Wungsintaweekul, J.. Transcription levels of genes encoding tryptophan decarboxylase and 1-deoxy-D-xylulose 5-phosphate synthase in elicitated shoot culture of Mitragyna speciosa.  CDD2010 The first current drug development.  71, Woraburi Resort and Spa, Phuket,  6-8 May, 2010
  10. Pramprasert, C., Tewtrakul, S., and Wungsintaweekul, J.. Anti-inflammatory activity of plaunotol isolated from Croton stellatopilosus in murine macrophage RAW 264.7 cells.  CDD2010 The first current drug development.  73, Woraburi Resort and Spa, Phuket,  6-8 May, 2010
  11. Wungsintaweekul, J., Charoonratana, T., Choo-malee, J, Keawpradub, N., Seetang-Nun, Y. and De-Eknamkul, W. . Mitragynine biosynthesis: transcriptional profiling of the early step genes in Mitragyna speciosa. .  The 9th NRCT-JSPS Joint seminar.  OP-18, Faculty of Pharmaceutical Sciences, Chulalongkorn ,  8-9 December, 2010
  12. Pramprasert, J., Tewtrakul, S., Wungsintaweekul, J.. The efficiency of Croton stellatopilosus leaves extracts on antiinflammation and antibacterial activity.  The Eight NRCT-JSPS Joint Seminar: Innvative Research in Natural Products for Sustainable Development.  189-190, Chulalongkorn University, Bangkok,  3-4 February, 2009
  13. Phongprueksapattana, S., Putalun, W., Keawpradub,N.,Wungsinatweekul, J.. Triterpenoid production in hairy root culture of Mitragyna speciosa.  The Eight NRCT-JSPS Joint Seminar: Innvative Research in Natural Products for Sustainable Development.  155-156, Chulalongkorn University, Bangkok,  3 February, 2009
  14. Choo-malee, J., Phongprueksapattana, S., Putalun, W., Keawpradub,N.,Wungsintaweekul,J. . In vitro plantlet regeneration of Mitragyna speciosa for mitragynine biosynthetic study.  The Eight NRCT-JSPS Joint Seminar: Innvative Research in Natural Products for Sustainable Development.  151-152, Chulalongkorn University, Bangkok,  3-4 February, 2009
  15. Charoonratana, T., Seetang-Nun, Y., Wungsintaweekul, J.. cDNA Cloning and expression of 2C-methyl-D-erythritol 4-phosphate synthase from Mitragyna speciosa.  The Eight NRCT-JSPS Joint Seminar: Innvative Research in Natural Products for Sustainable Development.  147-148, Chulalongkorn University, Bangkok,  3-4 February, 2009
  16. Kongduang, D., Wungsintaweekul, J., De-Eknamkul, W.. Comparative analysis of mRNA expression of gene involved in the methylerythritol phosphate pathway in various cell types of Croton stellatopilosus.  The Eight NRCT-JSPS Joint Seminar: Innvative Research in Natural Products for Sustainable Development.  139-140, Chulalongkorn University, Bangkok,  3-4 February, 2009
  17. Kongduang, D., Wungsintaweekul, J., De-Eknamkul, W.. Isoprenoid biosynthesis in suspension culture of Croton stellatopilosus.  Terpnet 2009: 9th International meeting, biosynthesis and function of isoprenoids inplants,microoraganisms and parasites.  O-35, The University of Tokyo, Yayoi Auditorium,  25-29 May, 2009
  18. Wungsintaweekul,J. and Charoonrattana, T.. Mitragynine biosynthesis: cDNA cloning of 1-deoxy-D-xylulose 5-phosphate synthase(DXS) and 1-deoxy-D-xylulose 5-phosphate reductoisomerase (DXR) genes from Mitragyna speciosa Korth..  The 5th International Conference on Plant Metabolomics.  115-116, Pacifico Yokohamam Japan,  15-18 July, 2008
  19. Kongduang, D., Wungsintaweekul, J. and De-Eknamkul, W.. Biosynthesis of beta-sitosterol and stigmasterol proceeds exclusively via the mevalonate pathway in the disorganized cell suspension cultures of Croton stellatopilosus..  Annual meeting of the Phytochemical Society of North America.  121, Donald Danforth Plant Science Center, St. Louis,  21-25 July, 2007
  20. Sirisuntipong, Sitthithaworn, W., Tansakul, P., De-Eknamkul, W. and Wungsintaweekul, J. . Plaunotol biosynthesis: cDNA cloning and expression profiling of dxr gene encoding 1-deoxy-D-xylulose 5-phosphate reductoisomerase from Croton stellatopilosus Ohba..  Annual meeting of the Phytochemical Society of North America.  121, Donald Danforth Plant Science Center, St. Louis,  21-25 July, 2007
  21. Siithithaworn, W., Wungsintaweekul, J. and De-Eknamkul, W. . Regulatory roleof 1-deoxy-D-xylulose 5-phosphate synthase and geranylgeranyl diphosphate synthase in plaunotol biosynthesis during Croton stelltopilosus leaf development..  Annual meeting of the Phytochemical Society of North America.  119, Donald Danforth Plant Science Center, St. Louis,  21-25 July, 2007
  22. Hofstaetter, H., Kaiser, M., Wungsintaweekul J., Wattanapiromsakul C.,Tewtrakul, S.,Feierl, G.,Brantner, A. H.. Antioxidant and antimicrobial potential of Garcinia hombroniana Pierre bark.  GA2007.  884, Graz, Austria,  23-27 September, 2007
  23. Wungsinatweekul, J., Putalun, W., Sitthithaworn, W., Pfeifhofer, H. W., Brantner, A. H.. Chemical composition of volatile oils and evaluation of antioxiclant and antimicrobial activities of ethnopharmacologically selected Thai medicinal plants.  GA2007.  868-869, Graz, Austria,  24-27 September, 2007
  24. Sirisuntipong, T., Tansakul, P., De-Eknamkul, W. and Wungsintaweekul, J. . Molecular cloning and characterization of 1-deoxy-D-xylulose 5-phosphate reductoisomerase from Croton stellatopilosus Ohba..  The 3rd Life Sciences Postgraduate Conference.  148, Universiti Sain Malaysia,  24-27 May, 2006
  25. Phongprueksapattana, S., Putalun, W., De-Eknamkul, W. and Wungsintaweekul, J. . Agrobacterium rhizogenes transformed hairy root culture from Mitragyna speciosa Korth. .  The 3rd Life Sciences Postgraduate Conference.  199, Universiti Sain Malaysia, Penang,  24-27 May, 2006
  26. Treetharnmathurot, B., Wungsintaweekul, J., Ovartlarnporn, C., and Wiwattanapattapee, R.. Increased stability of trypsin modified by methoxypolyethylene glycol.  The 3rd Life Sciences Postgraduate Conference.  30, Universiti Sain Malaysia, Penang,  24-27 May, 2006
  27. Wungsintaweekul, J., Sriyapai, C., Kaewkerd, S., Tewtrakul, S., De-Eknamkul, W. . Croton stellatopilosus cell suspension culture: a phytochemical study and improvement of geranylgeraniol production. .  The 10th International Congress Phytopharm 2006.  149, St-Petersberg, Russia,  27-30 June, 2006
  28. Wungsintaweekul, J. and De-Eknamkul, W.. Biosynthesis of plaunotol in Croton stellatopilosus proceeds via the doxyxylulose phosphate pathway.  In Young Scientists meet Senior Scientist.  100, The Thailand Research Fund, Felix River Kaew Hotel, Kanchanaburi,  14-16 January, 2005
  29. Wungsintaweekul, J. and De-Eknamkul, W.. Biosynthesis of terpenoid in Croton stellatopilosus: A 13C-NMR study on the building blocks of plaunotol.  4th Pharmaindochina: Pharmacy in cooperation for development and integration.  81, Ho Chi Minh City, Vietnam,  10-13 November, 2005
  30. Panichyupakaranant, P., Wungsintaweekul, J. and Chatsiriwej. Anthraquinone formation in Senna alata tissue culture..  XVII International Botanical Congress.  659, Austria Center Vienna, Vienna, Austria,  17-23 July, 2005
  31. Nualkaew, N., Tansakul, P., Wungsintaweekul, J., De-Eknamkul, W. . Biosynthetic studies of bioactive compounds in Thai medicinal plants: Formation of geranylgeraniol and plaunotol in Croton stellatopilosus.  Tenth International Symposium on Traditional Medicine, Traditional Knowledge and New Technology.  105, Toyama, Japan,  14-16 July, 2005
  32. Wungsintaweekul, J., Losuphanporn, T., Sirisuntipong, T., Tansakul, P., Sitthithaworn, W., Shibuya, M., Ebizuka, Y. and De-Eknamkul, W. . cDNA cloning and molecular analysis of dxs gene from Croton stellatopilosus.  4th Pharmaindochina: Pharmacy in cooperation for development and integration.  65, Ho Chi Minh City, Vietnam,  10-13 November, 2005
  33. Treetharnmathurot, B., Wiwattanapattapee, R., Wungsintaweekul, J., Ovatlarnporn, C. and Duncan, R.. Thermal stability and activity determination of native and methoxypolyethylene glycol modified trypsins.  4th Pharmaindochina: Pharmacy in cooperation for development and integration.  150, Ho Chi Minh City, Vietnam,  10-13 November, 2005
  34. Kongduang, D., Sriyapai, C., Kaewkerd, S., Wungsintaweekul, J. and De-Eknamkul, W.. Geranylgeraniol and beta-sitosterol biosynthesis: A preliminary study on the carbon blocks in Croton stellatopilosus suspension culture.  4th Pharmaindochina: Pharmacy in cooperation for development and integration.  183, Ho Chi Minh City, Vietnam,  10-13 November, 2005
  35. Losuphanporn, T., Ounaroon, A., De-Eknamkul, W. and Wungsintaweekul, J.. Study on heterologous gene expression of 1-deoxy-D-xylulose 5-phosphate synthase (DXS) from Croton stellatopilosus in Escherichia coli.  4th Pharmaindochina: Pharmacy in cooperation for development and integration.  supplement, Ho Chi Minh City, Vietnam,  10-13 November, 2005
  36. Wungsintaweekul, J., Supantawee, P., Saweksarp, S., Boonchan, A., Lohanawakul, W. and Tewtrakul, S. . Lupeol formation in Clitoria ternatea callus culture.  The 2nd World Congress of the Board of Pharmaceutical Sciences of FIP: The The Global Translation of Science into Drug Development in Advancing Therapy.  312, Kyoto International Conference Hall, Kyoto, Japan, ,  30  May , 2004
  37. Panichayupakaranant, P. Chatsiriwej, N., Wungsintaweekul, J. And Intaraksa, N. . Distribution of anthraquinone glycosides in Senna alata and determination of the free aglycones in the leaves.  In Life Sciences Postgraduate Conference.  48, Universiti Sains Malaysia, Penang, Malaysia ,  1-3 April, 2004
  38. J. Wungsintaweekul, F. Rohdich, K. Kis, W. Eisenreich, S. Sagner, M. Fellermeier, C.A. Schuhr, S. Hecht, M.H. Zenk and A. Bacher. Purification and Characterization of Novel Enzymes in Terpenoid Biosynthesis.  WOCMAP 2003.  27, Lotus Pang Suan Kaew, Chiang Mai, Thailand,  2 February, 2003
  39. Juraithip Wungsintaweekul, Patranut Ekwaropas and Angkana Anantantikul. Study on secondary metabolites in suspension culture of Croton stellatopilosus.  29th Congress on Science and Technology of Thailand.  SB171, Golden Jubilee Convention Hall, Khon Kean University,  20-22 October, 2003
  40. Juraithip Wungsintaweekul, Wanchai De-Eknamkul. Biosynthesis of plaunotol in Croton stellatopilosus Ohba..  The Sixth Joint Seminar: Recent advances in Natural Medicine Research.  121, Bangkok, Thailand,  2-4 December, 2003
  41. Wanchai De-Eknamkul, Nongnit Teerawattanasuk, Juraithip Wungsintaweekul, Waraporn Putalun, Worapan Sitthithaworn, Anan Ounaroon and Supachai Samappito. From diversity to natural product biotechnology in Thailand.  The Sixth Joint Seminar: Recent advances in Natural Medicine Research.  106, Bangkok, Thailand,  2-4 December, 2003
  42. Rohdich, F., Eisenreich, W., Wungsintaweekul, J., Hecht, S., Schuhr, C. A. and Bacher, A.. Antimalarial drug target: 2C-Methyl-D-erythritol 2,4-cyclodiphosphate synthase (IspF) from Plasmodium falciparum, an enzyme in terpenoid biosynthesis.  The forth regional IMT-GT UNINET conference 2002, Future Scenario in Biological Research: Insights and Co-orperation.  232, The City Bayview Hotel, Penang, Malaysia,  15-17 October, 2002
  43. Wungsintaweekul, J., Rohdich, F., Eisenreich, W., Hecht, S., Schuhr, C and Bacher, A.. 2C-Methyl-D-erythritol 2,4-cyclodiphosphate synthase (IspF) from Plasmodium falciparum.  Protein research network symposium 2002 on Protein Structure and Molecular Enzymology.  32, Center for Protein Structure and Function, Faculty of Science, Mahidol University,  29-30 August, 2002
  44. De-Eknamkul, W., Panichayupakaranant, P., Ounaroon, A., Tansakul, P. and Wungsintaweekul, J.. Biosynthetic enzymes of pharmaceutically important natural products from Thai medicinal plants.  NRCT-JSPS Core University System: The third joint-seminar .  10-19, Chulalongkorn University, Bangkok, Thailand,  27-29 November, 1996
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  1. Genes, enzymes, labeled intermediates, and methods for analysis of mevalonate-independent isoprenoid biosynthesis pathway, Ger. Offen., DE 10027821., 2001.
  2. Metabolic pathways and enzymes in isoprenoid biosynthesis and their uses in screening assays for inhibitors and herbicides resistance, PCT Int. Appl., WO 2000-EP7548., 2001.
  3. The non-mevalonate isoprenoid pathway, European Patent, Patent no. 01940547.1-2405., 2001.
  4. Method for the determination of 1-deoxy-D-xylulose 5-phosphate reductoisomerase in microorganisms and cell cultures, Ger. Offen., DE 10018368., 2001.