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conferenceseries
.com
Volume 9
Journal of Biotechnology & Biomaterials
ISSN: 2155-952X
JOINT EVENT
February 28-March 02, 2019 | Berlin, Germany
5
th
International Conference on
Enzymology and Protein Chemistry
&
22
nd
Global Congress on
Biotechnology
Biotechnology 2019
Enzymology 2019
February 28-March 02, 2019
&
Effect of ultrasound and thermal treatment on pectin methylesterase activity in papaya (Carica
papaya) juice
Juan Villanueva
National University Hermilio Valdizan, Perú
A
mong the pectic enzymes present in fruits and vegetables, pectin methylesterase (PME) is usually related to the loss
of quality and it causes adverse effects on finished products. In this research, the kinetic of ultrasound and thermal
treatments are evaluated in the PME activity in papaya juice. The results showed that the ultrasound treatment caused an
increase in the catalytic activity up to 52%. After a while, the catalytic activity decreased in 27% indicating that the ultrasound
was not effective in the enzymatic inactivation, whereas the thermal treatment inactivated 71% of the PME. However, these
results open perspectives to evaluate the effect of ultrasound and enhance the catalytic activity of enzymes of industrial interest.
juanedvi@yahoo.esJ Biotechnol Biomater 2019, Volume 9
DOI: 10.4172/2155-952X-C2-116