Substrate Inhibition in Lipase-Catalysed Transesterification of Mandelic acid with Vinyl Acetate

Biotransformations of Turpentine Constituents: Oxygenation and Esterification

This thesis describes methods to obtain value–added compounds from TMPturpentine obtained from the spruce, Picea abies. The methodology focuses on biotransformations using two approaches: an oxygenation approach (i.e. oxygenation of terpene hydrocarbons by cell cultures) and an esterification approach (i.e. lipase-catalysed transesterification of vinyl acetate with terpene alcohols, and a furth...

Probing the effects of microwave irradiation on enzyme-catalysed organic transformations: the case of lipase-catalysed transesterification reactions.

The lipase-catalysed transesterification reaction of methyl acetoacetate in toluene as a solvent has been studied using carefully controlled conditions. Results suggest that microwave heating does not have a noticeable effect on reaction rate or product conversion.

Lipase Mediated Isoamyl Acetate Synthesis in Solvent-Free System Using Vinyl Acetate as Acyl Donor

Synthesis of isoamyl acetate, a flavour ester extensively used in food industry, has been carried out in a solvent-free system. In the present study, an attempt has been made to enhance the isoamyl acetate synthesis yield by transesterification of isoamyl alcohol with vinyl acetate using immobilized Rhizopus oryzae NRRL 3562 lipase. In the present synthesis, substrates had no inhibitory effect ...

Vinyl Acetate

Lipase Catalysed Transesterfication

There has been great emphasis on the use of biodiesel due to worldwide scarcity of fossil fuels, increasing crude oil prices and environmental concerns to reduce pollution. Production of biodiesel from biologically derived oils involves transesterification of these triglycerides with short chain alcohols to yield alkyl esters of fatty acids. These can be used in engines which are having compres...