no investigation on T. fragrans seed oil has been carried out. The present study aims to investigate the physical and chemical properties and fatty acid composition of oil extracted from T. fragrans seeds. Materials and Methods Seed MaterialFresh seeds of T. fragrans were collected from the Botanical Garden, Karnatak University, Dharwad, India during January 2015. Prior to extraction, the seeds were dried overnight in oven at 80 °C and 50 g of seeds were ground in a coffee blender. The oil was extracted by heating at reflux using 100 mL petroleum ether (b.p. 40-60 °C) with three batches of seeds. The resulting extract was filtered and evaporated using a rotary evaporator. The oil was evaluated for various physical and chemical properties by standard AOCS methods [3]. All the analysis was carried out in triplicate and the values of different parameters used for analysis were expressed as mean ± standard deviation. Fatty Acid CompositionA Chemito GC 8610 gas chromatograph with a flame ionization detector was employed for the analysis using nitrogen (99.95 % purity) as carrier gas. The column used was BP970 (50 m × 90.32 mm × 0.25 µm films). The injection port temperature was 240 °C and the detector temperature was 280 °C with a flow rate of 0.3 mL/min. Identification of the peaks was performed by comparing the retention times with that of a standard fatty acid mixture analysed under same conditions. Abstract The physicochemical and fatty acid compositions of seed oil extracted from Thunbergia fragrans were determined. The oil content, free fatty acids, peroxide value, saponification value and iodine value were 21.70 %, 2.25 % (as oleic acid), 9.6 (mequiv. O 2 /kg), 191.71 (mg KOH/g) and 127.84 (g/100 g oil) respectively. The fatty acid profiles of the methyl esters showed the presence of 90.16 % unsaturated fatty acids and 9.84 % saturated fatty acids. Palmitoleic acid, which is usually found in marine foods and is unique in seed oils of botanical origin, was the major component (79.24 %). The oil can also be used in industries for the preparation of liquid soaps, shampoos and alkyd resin.
Sugarcane is a major commercial crop grown in India and across the world. Hence, several elite varieties have been developed now-a-days to overcome many obstacles including abiotic stresses and diseases. The present study was undertaken to screen genetic variation among twenty four sugarcane varieties that are commonly cultivated across Northern Karnataka, India with reference to physicochemical characters. Experiment was conducted in triplicate following randomized complete HIGHLIGHTS Genetic variation among 24 sugarcane varieties cultivated across Northern Karnataka in India. Phenotypic Characterization. PCA and AHC chemometric analyses. • Co 86032 and CoC 671 were found to be elite varieties.
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