Production of low-calorie structured lipids from spent coffee grounds or olive pomace crude oils catalyzed by immobilized lipase in magnetic nanoparticles
Articolo
Data di Pubblicazione:
2020
Citazione:
Production of low-calorie structured lipids from spent coffee grounds or olive pomace crude oils catalyzed by immobilized lipase in magnetic nanoparticles / D.A. Mota, D. Rajan, G.C. Heinzl, N.M. Osório, J. Gominho, L.C. Krause, C.M.F. Soares, K.M. Nampoothiri, R.K. Sukumaran, S. Ferreira-Dias. - In: BIORESOURCE TECHNOLOGY. - ISSN 0960-8524. - 307(2020 Jul).
Abstract:
In this study, crude oils extracted from spent coffee grounds (SCG) and olive pomace (OP) were used as raw-material to synthesize low-calorie triacylglycerols, either by acidolysis with capric acid, or by interesterification with ethyl caprate, in solvent-free media, catalyzed by sn-1,3 regioselective lipases. The Rhizopus oryzae lipase (ROL) was immobilized in magnetite nanoparticles (MNP–ROL) and tested as novel biocatalyst. MNP-ROL performance was compared with that of the commercial immobilized Thermomyces lanuginosus lipase (Lipozyme TL IM). For both oils, Lipozyme TL IM preferred interesterification over acidolysis. MNP-ROL catalyzed reactions were faster and acidolysis was preferred with yields of c.a. 50% new triacylglycerols after 3 h acidolysis of OP or SCG oils. MNP-ROL was very stable following the Sadana deactivation model with half-lives of 163 h and 220 h when reused in batch acidolysis and interesterification of OP oil, respectively.
Tipologia IRIS:
01 - Articolo su periodico
Elenco autori:
D.A. Mota, D. Rajan, G.C. Heinzl, N.M. Osório, J. Gominho, L.C. Krause, C.M.F. Soares, K.M. Nampoothiri, R.K. Sukumaran, S. Ferreira-Dias
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