Browsing by Author "Joseph, K.V."
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Item A colorimetric method for the estimation of Pyrogallol(2007-02-08) Joseph, K.V.; Potty, V.P.; Jayasankar, N.P.Pyrogallol in the 5-20 jug range has been estimated colorimetrically in acetic acid after treatment with paradimethyl amino benzaldehyde and sulphuiic acid. Some factors affecting the formation of colour have been studied.Item Elimination of Tannins from coconut leaves(2007-02-08) Potti, V.P.; Joseph, K.V.; Jayasankar, N.P.; Hariharasubramanian, V.Item Increase in Polyphenol Oxidase and Peroxidase with Higher Intensities of Coconut Root (Wilt) Disease(1976-06) Joseph, K.V.; Potty, V.P.; Jayasankar, N.P.The levels of polyphenol oxidase and peroxidase were found to increase with intensity of coconut root (wilt) disease. The correlation between phenol oxidising enzymes and coconut root (wilt) index formulated on the basis of foliar symptoms was positive.Item Investigations on cockchafer beetle, Leucopholis coneophora Burm.(Central Plantation Crops Research Institute, Regional station, Kayangulam, 1982-12-31) Abraham, V.A.; Joseph, K.V.Item Microbial Degradation of Coconut Waste Materials(2007-02) Potty, V.P.; Joseph, K.V.; Mathew George; Jayasankar, N.P.Retting of coconut husk yields coir fibre and coconut pith both of which are resistant to microbial attack. The former finds a place in commerce, while the disposal of the latter is a problem. Enrichment culture methodology using lignocellulose as source of carbon yielded a fungus identified as Poria ravanulae. The fungus could utilise coconut pith which is essentially a ligno cellulose complex, as source of carbon for its growth. The coconut P. ravanulae isolates were lignoclastic, its polyphenol oxidase was noninducible and could use a range of phenolic substrates for growth. Replacement culture techniques indicated the conversion of trihydric phloroglucinol to dihydric resorcinol.Item Microbiological Aspects(2007-02) Jayasankar, N.P.; Joseph, K.V.; Mathew GeorgeItem Nutritional Aspects of Palm Oil(2007-02) Joseph, K.V.Item Phenol Metabolism of the Coconut Palms (Cocos Nucifera L.) in Relation to Root (Wilt) Disease(2007-02) Joseph, K.V.; Jayasankar, N.P.Enzymatic assay with the acetone powder preparations of the coconut roots revealed an increase in the levels of polyphenol oxidase and peroxidase with the incidence and increase in intensity of coconut root (wilt) disease. The levels of free phenols in the coconut roots were comparatively low in the root (wilt) affected palms compared to the apparently healthy palms. The levels of phenyl alanine ammonia lyase were also higher in the coconut palms cultivated in the root (wilt) affected palms compared to the palms cultivated in the disease free region. The results are suggestive of an accelarated phenol metabolism characteristic or root (wilt) disease.Item Physiology and Biochemistry(2007-02) Rajagopal, V.; Mathew, C.; Varkey, T.; Joseph, K.V.Item Polyphenol Content in Coconut Roots in Relation to (Root Wilt) Disease(1974) Joseph, K.V.; Jayasankar, N.P.Coconut palms in the diseased tract contained less total phenols in the roots as compared to the palms of healthy tract. The N.C.P- variety, which is more resistant than W.C.T., had a low concentration of phenols.Item Processing and fermentation of coconut toddy(1978) Potty, V.P.; Joseph, K.V.; Sethumadhava Menon, K.; Jayasankar, N.P.Item Rapid detection of indole compounds with ehrlich's reagent(1978-01) Potty, V.P.; Joseph, K.V.; Jayasankar, N.P.