Quality Characteristics of Castor Bean Oil (Ricinus communis L.) under Sub-Tropical Divergent Pothwar Environment of Pakistan
Quality Characteristics of Castor Bean Oil (Ricinus communis L.) under Sub-Tropical Divergent Pothwar Environment of Pakistan
Nasir Mahmood Cheema1*, Ghulam Shabbir2 and Nazakat Nawaz3
ABSTRACT
Oil quality and quantity in oil seed crops are very much influenced by environmental conditions. Fatty acid composition of Castor bean (Ricinus communis L.) reflects its oil quality. Consequently, the purpose of this study was to see the Pothwar environmental condition effects on quality of castor bean oil. For the purpose, castor bean oil (Ricinus communis L.) two years experimental data from the stand point of oil content and oil quality were collected and analyzed having four sowing dates 15th July, 30th July, 15th August and 30th August using four varieties (DS-30, PR-7/1, PR101, Local) crop planted at National Agricultural Research Center, Islamabad. Randomized complete block design (split plot) having three replications was followed by sowing dates and varieties. Castor bean oil was analyzed for fatty acid profile and oil content by using soxhlet extr action apparatus and gas chromatography. Results revealed significant differences among oil quality components among castor cultivars and differ significantly (p<0.05) from the view point of oil content, linoleic acid, stearic acid, palmitic acid and protein but indicated no difference significantly (p>0.05) in oleic acid and ricin oleic acid. Among cultivars, DS-30 showed maximum oil content (49.356 %) and ricin oleic acid (87.978%). The most important component of castor oil the ricin oleic acid% was found highest by sowing date 15th July in all the varieties while highest oil content was also obtained with sowing date 15 July. The present research is the first report on oil contents and its quality extracted from the castor grown under climate of Pothwar area of Pakistan.
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