2010
DOI: 10.1016/j.ijbiomac.2010.04.009
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Screening of lipases for the synthesis of xylitol monoesters by chemoenzymatic esterification and the potential of microwave and ultrasound irradiations to enhance the reaction rate

Abstract: Lipases from different sources, Pseudomonas fluorescens (AK lipase), Burkholderia cepacia (PS lipase), Penicillium camembertii (lipase G) and Porcine pancreas lipase (PPL), previously immobilized on epoxy SiO(2)-PVA, were screened for the synthesis of xylitol monoesters by esterification of the protected xylitol using oleic acid as acyl donor group. Among all immobilized derivatives, the highest esterification yield was achieved by P. camembertii lipase, showing to be attractive alternative to bulk chemical ro… Show more

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Cited by 29 publications
(14 citation statements)
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“…In another study, the enzymatic synthesis of isoamyl myristate by esterification reaction in a solvent-free system catalyzed by Novozym 435 was also improved by microwave irradiation [54]. The productivity of xylitol monoesters synthesis catalyzed by immobilized lipase from Penicillium camemberti was higher under nonconventional heating than conventional one, 5.3 mmol/h and 2.2 mmol/h, respectively [29]. …”
Section: Resultsmentioning
confidence: 99%
See 1 more Smart Citation
“…In another study, the enzymatic synthesis of isoamyl myristate by esterification reaction in a solvent-free system catalyzed by Novozym 435 was also improved by microwave irradiation [54]. The productivity of xylitol monoesters synthesis catalyzed by immobilized lipase from Penicillium camemberti was higher under nonconventional heating than conventional one, 5.3 mmol/h and 2.2 mmol/h, respectively [29]. …”
Section: Resultsmentioning
confidence: 99%
“…Moreover, experiments were also carried out to determine the feasibility of using nonconventional heating systems such as microwave irradiation. Microwave, a nonionizing radiation has been explored in recent years as an alternative heating system in many areas, including the enzymatic biodiesel synthesis [2729]. Microwave heating involves directed absorption of energy by functional groups that bear ionic conductivity or a dipole rotational effect, and this energy is then released into the surrounding solution [28].…”
Section: Introductionmentioning
confidence: 99%
“…However, the catalytic activity of the four commercial lipase preparations displayed similar performance on butyl butyrate synthesis. According to data reported in the literature, lipases from T. lanuginosus and P. fluorescens are very efficient in emulsified triglycerides hydrolysis, but the enzymes could be inactivated in organic medium [8,11,16,25]. These lipase preparations are "typical lipases" with a large lid domain that covers their active sites [25].…”
Section: Butyl Butyrate Synthesismentioning
confidence: 99%
“…In organic medium, lipases also catalyze esterifications, transesterifications and interesterifications [1][2][3][4]. These enzymes are applied in several industrial processes including synthesis of biopolymers, production of pharmaceuticals, agrochemicals, cosmetics, flavors, treatment of waste rich in lipids and biodiesel synthesis by transesterification of triglycerides with short-chain alcohols [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17].…”
Section: Introductionmentioning
confidence: 99%
“…Tabela 19: Comparação dos parâmetros globais de reação de etanólise do óleo de pinhão manso (rendimento e produtividade), para os experimentos realizados sob aquecimento convencional e micro-ondas (6h), utilizando lipase PS imobilizada em SiO 2 -PVA. (DA RÓS, 2009;RUFINO et al, 2010).…”
Section: Estabilidade Operacional Da Lipase Ps Imobilizada Em Sio 2 -Pvaunclassified