A cleaner approach for biolubricant production using biodiesel as a starting material

Improved thermo-oxidative stability of structurally modified waste cooking oil methyl esters for bio-lubricant application

“…Several advanced technological routes have been adopted to solve the problems related with plant oils in lubricant applications. Following are the possible alternatives to enhance the performance properties of vegetable oils as bio lubricants such as; genetic modification (Smith et al, 2007), additive treatment (Sharma et al, 2008), selective hydrogenation of unsaturated sites (Cermak et al, 2006), transesterification (Bokade and Yadav, 2007;Kleinaite et al, 2014) and chemical modification (Sharma et al, 2008;Li and Wang, 2015) i.e. structural modification by epoxidation reaction.…”

“…However, in most of the cases edible oils and their esters (Sharma et al, 2008;Kleinaite et al, 2014) are used for epoxide synthesis. However, very scanty information is available on the use of edible waste oils/waste cooking oil methyl esters for epoxide synthesis.…”

Yeast Kluyveromyces lactis as host for expression of the bacterial lipase: cloning and adaptation of the new lipase gene from Serratia sp.

“…In our study, not only common solvents (Fig. 5), but also 2-ethyl-1-hexanol and oleic acid were assayed for enzyme stability as they are components of interest for performance of 2-ethyl-1-hexyl oleate synthesis [16]. The settled relative activities of mG1 and sG1 lipases confirmed their good stability in water-insoluble oleic acid (Fig.…”

“…It is necessary to study the influence of organic solvents for lipase stability, which depends on the nature of both enzyme and solvent [16], because it is believed that hydrophilic solvents such as ethers and acetone are usually incompatible with enzyme activity, while water-immiscible solvents, such as alkanes or haloalkanes, retain their catalytic activity as they do not release the bound water from the enzyme surface which is important for enzyme activity and stability. In our study, not only common solvents (Fig.…”

Analysis of Viscosity-Temperature Behaviour of Karanja Oil Trimethylolpropane Ester Bio-lubricant Base Stock

“…These oils may be used without any chemical modification or may be blended with petroleum lube oil base stocks or additives or may be chemically modified via esterification, transesterification, epoxidation and hydrolysis routes. The major vegetable oils analyzed for biolubricant applications include castor oil [5], canola oil [6], soybean oil [7], sunflower oil [8], palm oil [9], Jatropha curcas oil [10], rapeseed oil [11], rubber seed oil [12], etc. Since the edible vegetable oils are more important for human civilization as key source of nutrition, the bio-lubricant research has gradually shifted to non-edible vegetable oils such as karanja, linseed, tobacco, waste cooking oil [13], algae oil and microalgae [14] and animal fats.…”