ABSTRACT Carica papaya lipases are biocatalysts with potential for lipid bioconversion. This research studied the lipolitic activity (LA) of the crude powder (P3) and protease-free (CPL-p) fractions of C. papaya latex on Bactris guineensis (corozo) oil. Latex and oil were obtained from agro-industrial waste. A composite central design allowed to establish the temperature (T) and pH effect on LA of P3 and CPL-p; thermal, pH stabilities and kinetic parameters were also determined. The maximum LA were 722,43 ± 1,92 U/g (T= 40°C y pH= 9) and 518,65 ± 4,70 U/g (T = 54°C y pH= 8) for P3 and CPL-p respectively. P3 showed higher affinity (KM = 1,3x104 ± 1,3x103 µM y Vmax = 18,66 ± 0,47 µmol/min) compared to CPL-p (KM = 2,6x104 ± 1,1x103 µM y Vmax = 16,58 ± 0,08 µmol/min); similarly, greater efficiency in hydrolysis, due to the high content of medium chain fatty acids (lauric and miristic acid > 80%). As a conclusion, the fraction P3 is an efficient biocatalyst for the bioconversion of corozo oil, demonstraring that the residues of these fruits are valuable resources for its production chains.
CITATION STYLE
URQUIJO ODRÍGUEZ, M., & FONTALVO GÓMEZ, M. (2020). Hidrólisis enzimática del aceite de Bactris guineensis con fracciones del látex de Carica papaya: estudio del efecto de la temperatura, ph y concentración del sustrato. Biotecnología En El Sector Agropecuario y Agroindustrial, 18(2), 70. https://doi.org/10.18684/bsaa(18)70-81
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