Produksi gula pereduksi dari kulit kopi robusta dengan metode hidrolisis asam
Year: 2022
Type: article
Abstract: The high productivity of coffee in Indonesia resulted in abundant coffee husk. Unfortunately, the coffee husk has not been utilized optimally. This research aimed to determine the effect of variations and acid concentration. Two-stage s acidic hydrolysis process using two kinds of different chemical reagents i.e sulfuric acid (H 2 SO 4 ) and hydrochloric acid (HCl) with the variation of concentration such as 10 %, 20 %, and 30 % with temperature of 30 0 C and 75 0 C for five hours in water bath shaker w ith the rate agitation 120 rpm. The hydrolysates produced neutralized using NaOH 2N, so that the process of hydrolysis easily. The result showed that in acid ic hydrolysis process of coffee husk the reactant HCl generates levels of reducing sugar higher than the reactant H 2 SO 4 . In addition , the best treatment was hydrolysis by using reagent HCl 30 % with the levels total sugar, reducing sugar and degree of polymerization are of 20 .85 %, 17.28 %, and 1 .21.
Source: AGROINTEK
Authors: Danu Indra Wardhana, Ahib Assadam, Ara Nugrahayu Nalawati, Retno Murwanti
Institution: Universitas Muhammadiyah Jember
Language: Indonesian
Subfield: Biomedical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4297724446