Esters of petroselinic acid containing Trachyspermum copticum seed oil: Potential industrial lubricant base stocks.

Prabhakara Rao, P. G. and Kamalakar, K. and Jyothirmayi, T. and Karuna, M. S. L. and Prasad, R. B. N. (2020) Esters of petroselinic acid containing Trachyspermum copticum seed oil: Potential industrial lubricant base stocks. Indian Journal of Chemistry, 59B. pp. 126-134.

PDF IJCB 59B(1) 126-134.pdf - Published Version Restricted to Registered users only Download (156kB) | Request a copy

Abstract

Trachyspermum copticum seed oil contains volatile oil rich in thymol, which is distilled out and used for medicinal and aromatic formulations. The seed powder after removal of the volatiles loses its importance. However, the fixed oil being rich in unsaturation with petroselinic acid (18:1, Δ6; 68.3%) and linoleic acid (18:2; 25.3%) is used for preparing biolubricant base stocks. Methyl, isopropyl and 2-ethyl hexyl esters of the oil have been converted to epoxides, followed by in situ hydroxylation and acylation using hexanoic and butyric anhydrides. The acylated products have been evaluated for lubricant properties, and are found to exhibit density (0.91-0.97 g/cc); viscosity of 23.5-27.3 cSt at 40°C and 4.85-5.33 cSt at 100°C. The values are comparable to jatropha acylated products. The products exhibited good copper corrosion resistance value of ‘1a’ and high flash points of 230-242°C. The acylated esters with good weld load behavior, and lower wear and pour point values and viscosity indices, 128.84-138.94, can be potential base stocks belonging to group III category lubricants with ISO VG Grade about 22. These products can be further explored for the preparation of hydraulic, metal working and other industrial fluid formulations.

Item Type:	Article
Uncontrolled Keywords:	Trachyspermum copticum, seed oil, acylated products, biolubricant base stocks
Subjects:	600 Technology > 08 Food technology > 19 Lipids-oils/fats 600 Technology > 08 Food technology > 23 Vegetables
Divisions:	CFTRI Resource Centres > Hyderabad
Depositing User:	Food Sci. & Technol. Information Services
Date Deposited:	23 Nov 2020 11:10
Last Modified:	23 Nov 2020 11:10
URI:	http://ir.cftri.res.in/id/eprint/14621

Actions (login required)

View Item