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Studies on niger (Guizotia abyssinica) seed oil.

Nasirullah, Dr. and Mallika, T. and Rajalakshmi, S. and Pashupathi, K. S. and Ankaiah, K. N. and Vibhakar, S. and Krishnamurthy, M. N. and Nagaraja, K. V. and Kapur, O. P. (1982) Studies on niger (Guizotia abyssinica) seed oil. Journal of Food Science and Technology, 19 (4). 147-149, 12 ref..

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Abstract

9 niger seed samples collected from Maharashtra and Gujarat (India) were analysed. Content of oil ranged from 30.0 to 32.4% and protein from 26.0 to 30.6%. The range of values for other characteristics were: I value, 112.8-129.0; saponification value, 187.0-195.0; free fatty acid, 0.2-2.0%; butyro-refractometer reading, 59.5-62.2; refractive index, 1.4655-1.4673; Bellier turbidity temp., 24.5-27.8 degree C; and unsaponifiable matter, 0.5-1.0%. Oil samples were trans-esterified and fatty acid composition determined by GLC. The saturated fatty acids present were: palmitic 5.8-13.0%; stearic 5.0-7.5%; and arachidic 0.2-1.0%. Oleic (13.4-39.3%) and linoleic (45.4-65.8%) constituted the major fatty acids. UV spectrum of methanol solution of niger seed oil showed 3 peaks at 256, 260 and 267 nm; the possibility of any conjugation was ruled out by the UV spectra of methyl esters.

Item Type: Article
Uncontrolled Keywords: FATTY-ACIDS; niger seed oils, fatty acids composition of; OILSEEDS-; niger seed oils, characteristics of; OILS-VEGETABLE
Subjects: 600 Technology > 08 Food technology > 19 Lipids-oils/fats > 01 Oilseeds
Divisions: Lipid Science and Traditional Foods
Depositing User: Food Sci. & Technol. Information Services
Date Deposited: 07 Oct 2010 05:01
Last Modified: 28 Dec 2011 09:55
URI: http://ir.cftri.com/id/eprint/6768

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