Browsing by Author "Jayasundara, J.M.M.A."

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    Effect of different levels of fortification of wheat flour with defatted coconut flour on the quality of fibre enriched biscuits
    (2007) Marikkar, J.M.N.; Jayasundara, J.M.M.A.; Rupanjali, A.P.D.; Fernandopulle, M.N.D.
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    Fortification of coconut oil with sesame oil through micro expeller extraction process
    (2007-06-11) Marikkar, J.M.N.; Jayasundara, J.M.M.A.; Fernando, W.S.R.; Peiris, T.S.G.
    Value addition to coconut oil is highly desirable in order to increase the range of coconut products.A study was conducted to formulate palatable coconut oil(CNO) blends enriched with essential fatty acid(EFA) using sesame seed as the supplementary source of EFA.For this purpose,micro-expelling process was employed to extract oil blends out of the dried coconut grating mixed with various proportion of sesame seed(w/w;0,1,2,3,4,5,7 and 10).A sensory evaluation by a 30 member semi-trained panel was conducted using a seven-point hedonic scale in order to determine the critical limit of CNO fortification with sesame.Similarly, changes in fatty acid composition were determined using Gas Liquid Chromatography (GLC).Statistical analysis of the sensory data showed that a mild order of sesame started to appear in the oil blends at 4% lavel of sesame mixed with dried coconut gratings.According to fatty acid methyl ester(FAME) analysis,the relative increase in linoleic acid was only marginal although there was a substantial increase in unsatturated fatty acid component.At 5% level of fortification the increment in linoleic acid was 9.2%.
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    Toxins Produced by Fusarium Species in Leaf Scorch Decline Affected Coconut Palms (Cocos nucifera L.): Quantitative Analysis of Fusaric Acid, Zearalenone and T-2
    (2009) Siriwardhana, P.H.A.P.; Fernando, L.C.P.; Jayasundara, J.M.M.A.
    Leaf Scorch Decline (LSD) is a disorder of coconut (Cocos nucifera L.) prevalent in Sri Lanka, for which the etiology is yet unknown and hence a study was conducted to identity the toxins produced by Fusarium spp. associated with LSD-affected palms. Root, stem and leaf tissues of LSD-affected and healthy palms were used to analyze the toxin content. Gas Chromatographic (GC) analysis carried out for Fusaric acid (FA), Zearalenone (ZEA) and T-2 (a Trichothecene) revealed the presence of FA in stem or leaves of many affected palms, but not in any of the roots. Total FA in stem and leaves was significantly higher (p>0.01) in affected palms than in healthy palms. Healthy palms were free of FA. Although ZEA and T-2 were present in both healthy and affected palms, the only significant difference between the two groups was ZEA in stem tissues. A strong association between FA and the presence of ZEA suggest they influence the production of LSD symptoms. The similarity of symptoms of Fusarium wilt diseases in other plants and LSD are discussed.