FUNCTIONAL COMPOUND CHANGES DURING POSTHARVESTPHYSIOLOGICAL DETERIORATION OF CASSAVA TUBERSowmya Priya, S. and Kalarani, M.K.Abstract Reducing the economic value of the cassava tuber crop, thereby Postharvest Physiological Deterioration(PPD) is the major problem in cassava that renders the tuber unmarketable. After harvest of cassava tubercausing fluorescence in the storage parenchyma was observed, because changes in metabolic compoundmainly responsible for the fluorescence. Its content peaks within 24 hours of injury and prior to thedevelopment of the visual symptoms of physiological deterioration. The present study of Fourier infraredtransform spectroscopy (FTIR) was performed with CI 850, YTP 1, H740/92 and H226 cassava genotypes toidentify the functional compound changes during Postharvest Physiological Deterioration. FTIR spectroscopyis a technique based on the determination of the interaction between infrared (IR) radiation and a sample.The present study revealed that the extracts of fresh cassava tuber and stored tubers of different cassavagenotypes, has potential to produce bioactive functional compounds like hydrocarbons, oxygen compounds,nitrogen containing compounds, isocyanates, thiocyanide, cyanide, isothiocyanates, oxidized nitrogenfunctions, sulfur compounds, phosphorous and amides but their quantity was differently in cassavagenotypes which correlate with reinforcement of tolerance to PPD under storage condition. |