Provenance Variation in Growth, Seed Morphometric Traits, Biochemical Characterization of Seed Oil of Calophyllum Inophyllum Grown in Uttar Kannada District
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Date
2015-07
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University of Agricultural Science, Dharwad
Abstract
Provenance influence on growth, productivity, seed quality, oil content, fatty acid profile, seed cake quality and biodiesel production of Calophyllum inophyllum were conducted in Uttara Kannada district (Agro-climatic Zone-10) of Karnataka during 2014-2015. The study was undertaken in the already existing trees in natural forest at five different locations with varying altitudes (2.7-26.6 m) and rainfall (3209-4145 mm). There was a significant effect of locations on tree growth, productivity and soil chemical properties. Seed parameters were significantly influenced by different locations. Seed oil yield varied from 36.07 to 48.87 per cent and was greenish yellow in colour with disagreeable odour.
Four to six fatty acid components were detected in the oil samples of
C. inophyllum by GC-MS analysis of which four fatty acids are the major components viz., Palmitic acid ranges from 17.24-23.39 per cent, Stearic acid ranges from 9.88-15.90 per cent, Oleic acid ranges from 24.87-62.73 per cent and Linoleic acid ranges from 21.46-57.23 per cent. Two stage transesterification of C. inophyllum oil yielded biodiesel with 67.07 per cent. Biodiesel having Kinematic viscosity of 1.638 cSt (at 40 °C), Density as 889 (kg/m3 at 30 °C), Acid value of 0.14 (mg KOH/g), Specific gravity of 0.889 (at 30 °C), Saponification value as 147.56, Iodine value of 90.12, flash point of 140 ºC and cetane value of 59.35. The biodiesel parameters fit into the ASTM D6751 standards. Macro nutrients and proximate composition of de-oiled cake differed significantly with respect to locations and sites. C. inophyllum has the potential to capture medicinal and biofuel sector, due to its high oil content and oil quality and biodiesel production potential.
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