Wiesław Aleksander Oleszek

Biography

"Education In the case of Maria Curie- Sklodowska University, Lublin, Poland, 1975, M.Sci. Master thesis: Differentiation of nitrogen isotopes during migration in geological layers In the case of Institute of Soil Science & Plant Cult. 1985, Ph.D., Major - Plant Biochemistry. PhD thesis: Afalfa (Medicago media Pers.) and red clover (Trifolium pratense L.) root saponins and their allelopathic effect on wheat seedling growth In the case of Institute of Soil Science and Plant Cult. 1991, Habilitation degree, Major - Plant Biochemistry Habilitation thesis: Saponins from the roots of alfalfa (Medicago sativa L.): chemistry, biological activity and determination, Research and professional experience ˇ Research assistant, Institute of Soil Science and Plant Cultivation, Pulawy, Poland, (1975-1979) ˇ Visiting Fellow (1 year), Cornell University, Seed and Vegetable Department, Geneva NY, USA.1980/1981 - Glycoalkaloids in tomato and its progenies with Solanum lycopersicoides and Solanum penelli) ˇ Adjunct (Assistant Professor), Department of Biochemistry, Institute of Soil Science and Plant Cultivation, Pulawy, Poland, 1985 ˇ Visiting Fellow (1 year), Cornell University, Food Science and Technology Department, Geneva N.Y. USA, 1987 - Flavonoids and procyanidins in apples – isolation, structures, participation in browning reactions, changes during the storage ˇ Visiting Fellow (3 month), AFRC Institute of Food Research, Norwich, United Kingdom, 1989 - Affinity of alfalfa saponins to the intestine membranes; HPLC of saponins ˇ Habilitation degree (Associate Professor), 1991 ˇ Head of Biochemistry Department, Institute of Soil Science and Plant Cultivation, Pulawy, Poland, 1992 - present ˇ Post-doc in INRA (6 month), Montfavet, France, 1993, - Flavonoids in pear fruit – isolation, structures, concentration during the storage ˇ Full Professor 1997 ˇ Director of the Institute 2010 -"

Research Interest

" Isolation, purification, structural and quantitative determination of natural products (saponins, phenolics, glycoalkaloids, glucosinolates, resorcinols, cyanogenic glucosides) ˇ Biological activity of natural products ˇ Natural antioxidants and anticancerogens, nutraceuticals ˇ Chemical ecology ˇ Plant-plant and plant-microorganism interactions Allelopathy ˇ Post harvest quality of agricultural products ˇ Biosynthesis of natural products"