International Journal for Educational and Vocational Studies
Vol 3, No 2 (2021)

Optimum Temperature and Time for Acid Hydrolysis in Reducing Sugar Manufacturing from Arabica Coffee Cascara with Response Surface Methodology (RSM)

S Suryati (Department of Chemical Engineering, Faculty of Engineering, Universitas Malikussaleh, Aceh Utara)
M Meriatna (Department of Chemical Engineering, Faculty of Engineering, Universitas Malikussaleh, Aceh Utara)
M Masrullita (Department of Chemical Engineering, Faculty of Engineering, Universitas Malikussaleh, Aceh Utara)
Ferri Safriwardy (Department of Chemical Engineering, Faculty of Engineering, Universitas Malikussaleh, Aceh Utara)
Ardiansyah Ardiansyah (Department of Chemical Engineering, Faculty of Engineering, Universitas Malikussaleh, Aceh Utara)

Article Info

Publish Date
30 Apr 2021

Abstract

This research aims to utilize the Arabica coffee cascara waste as a resource for reducing sugar production, including the investigation on the temperature and time required of the acid hydrolysis. The samples were initially pretreated (drying and milling), followed by delignification with the organosolv technique using alcohol. Then, the hydrolysis was carried out using sulfuric acid (1%) at a particular temperature (95, 100, and 105 °C) and time (2, 4, and 6 h) variations. Yield percentage, density, and reducing concentration were analyzed in each trial to generate a response surface methodology model. Based on the results, the hydrolysis can be optimized at 96.46 °C for 2.59 h, yielding 16.7696% reducing sugar.

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Journal Info
International Journal for Educational and Vocational Studies
Website

Abbrev

ijevs

Publisher

Universitas Malikussaleh

Subject

Education Environmental Science Languange, Linguistic, Communication & Media Mathematics Social Sciences

Description

IJEVS aims to for the sharing, dissemination and discussion of research results, indivudal experience and review across a wide range of educational and vocational issues, as like all areas of the teaching development, instruction, educational projects and innovations, learning methodologies, new ...