Parametric and kinetics studies of the hydrolysis of pulverized banana (Musa sapientum) peels using hydrochloric acid

Date

2011

Degree

Bachelor of Science in Chemical Engineering

College

College of Engineering and Agro-Industrial Technology (CEAT)

Adviser/Committee Chair

Marilyn C. Del Barrio

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Abstract

The hydrolysis of pulverized banana(Musa sapientum) peels was studied using hydrochloric acid. The effects of pre-treatment(unpretreated and steam exploaded ground peels), acid concentrations (20% and 35% (v/v) HCI), and reaction temperatures (30ºC, 50ºC, and 70ºC) were determined based on the reducing sugar concentrations of the hydrolyzates Steam explosion is not an effective pre-treatment for the hydrolysis of ground banana peels since the results of statistical analyses showed that the mean reducing sugar concentrations obtained from the hydrolysis of unpretreated ground banana peels (2.1751g/L and 5.7771 g/L) was significantly higher than the mean reducing sugar concentrations obtained from the hydrolysis of pre-treated ground peels (0.8281 g/L and 3.1994 g/L) for both 20% and 35% (v/v) HCI used. A higher yield of reducing sugar was obtained from the hydrolysis reaction at a higher acid concentration since the average % yields calculated were equivalent to 21.44% and 65..22% for the reaction using 20% and 35% (v/v) HCI, respectively. On the other hand, lower yields of reducing sugar were obtained from hydxrolysis of unpretreated ground peels at higher reaction temperatures. The calculated average % yields were equivalent to 65.22%52.71%, and 44.94% for the hydrolysis reaction using 355 (v/v) HCI at 30ºC, 50ºC, and 70ºC, respectively. Kinetics analysis showed that the hydrolysis of unpretreated ground peels using 35% (v/v) HCI at 30ºC followed first-order kinetics specific rate constant equal to 0.4440hr⁻¹.

Language

English

LC Subject

Hydrolisis, Fossil fuels

Location

UPLB College of Engineering and Agro-Industrial Technology (CEAT)

Call Number

LG 993.5 2011 E62 J87

Document Type

Thesis

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