2017
DOI: 10.21577/0100-4042.20170032
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Síntese enzimática do caprilato de isopentila utilizando óleo fúsel como matéria-prima

Abstract: publicado na web em 24/03/2017 ENZYMATIC SYNTHESIS OF ISOPENTYL CAPRYLATE USING FUSEL OIL AS FEEDSTOCK. Four commercial lipase preparations immobilized by covalent attachment on epoxy-polysiloxane-β-cyclodextrin were tested as potential biocatalysts to mediate the esterification reaction of isopentanol with caprylic acid in solvent-free medium. Among them, the immobilized lipase from Rhizopus oryzae was the most active biocatalyst, attained ester conversion higher than 80% in 24 h, being selected for subsequen… Show more

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(2 citation statements)
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“…Other reagents such as isopropyl alcohol (99.5 %) and heptane (95 %) were from Cromoline. The standard isopropyl palmitate for the calibration method via chromatographic analysis was obtained by chemical synthesis according to Vilas Bôas et al [12].…”
Section: Methodsmentioning
confidence: 99%
See 1 more Smart Citation
“…Other reagents such as isopropyl alcohol (99.5 %) and heptane (95 %) were from Cromoline. The standard isopropyl palmitate for the calibration method via chromatographic analysis was obtained by chemical synthesis according to Vilas Bôas et al [12].…”
Section: Methodsmentioning
confidence: 99%
“…Operating conditions were column temperature of 150°C for 7 min, 200°C for 1 min, and 300°C for 2 min at a heating rate of 25°C min -1 . The palmitic acid content was determined by titration of aliquots diluted in ethanol using 0.02 mol L -1 KOH and phenolphthalein as indicator [12] and used to calculate the amount of ester produced according to Eq. (1), where [acid] i is the initial concentration of palmitic acid and [acid] f is the concentration of palmitic acid at a given time.…”
Section: Substrate Consumption and Product Formation Analysesmentioning
confidence: 99%