Optimization of microwave-assisted hydrolysis of glucose from oil palm empty fruit bunch

Q1 Social Sciences

South African Journal of Chemical Engineering Pub Date : 2024-10-23 DOI:10.1016/j.sajce.2024.10.004

Maya Sarah, Isti Madinah, Erni Misran, Fatimah

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引用次数: 0

Abstract

Hydrolysis of oil palm empty fruit bunches (OPEFB) using microwave as an energy source is carried out to produce sugar with mild operating conditions. One way to find the best conditions that can obtain high-quality sugar is to optimize the hydrolysis process. In this study, optimization was carried out using Response Surface Methodology (RSM) with a Central Composite Design (CCD) experimental design. Estimated variables to affect the hydrolysis process are the ratio of OPEFB to solvent (X₁: 1:20–4:20 g/ml), solvent concentration (X₂: 0.5–1.5 %), and hydrolysis time (X₃: 5–15 min). Hydrolysis success parameters were measured by hydrolysis temperature (Y₁), glucose (Y₂), fructose (Y₃), and total sugar (Y₄) concentration. The optimization results show that the three independent variables contribute 53.25 % to the hydrolysis temperature and 86.42 % to the sugar concentration. The recommended operating conditions were hydrolysis with the ratio of OPEFB to solvent of 4:20 g/ml, solvent concentration of 0.5 %, and carried out for 10 min. The hydrolysis temperature cannot be optimized because there is a mismatch in the temperature model analysis. The application of these conditions is predicted to produce glucose, fructose, and total sugar of 315.51; 258.24; 573.85 mg/L respectively. The last step is to validate these conditions in the laboratory to get the actual value. Actual glucose, fructose, and total sugar obtained were 300.40; 245.44; 545.84 mg/L respectively. The error in this study is less than 5 % which indicates the actual value is following the predicted value. © 2001 Elsevier Science. All rights reserved.

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优化微波辅助水解油棕空果束中的葡萄糖

以微波为能源对油棕空果串（OPEFB）进行水解，在温和的操作条件下生产糖。找到获得优质糖的最佳条件的方法之一是优化水解过程。本研究采用响应面方法（RSM）和中央复合设计（CCD）实验设计进行优化。影响水解过程的估计变量包括 OPEFB 与溶剂的比例（X1：1:20-4:20 g/ml）、溶剂浓度（X2：0.5-1.5 %）和水解时间（X3：5-15 分钟）。水解成功率参数由水解温度（Y1）、葡萄糖（Y2）、果糖（Y3）和总糖（Y4）浓度来衡量。优化结果表明，三个自变量对水解温度的影响为 53.25%，对糖浓度的影响为 86.42%。推荐的操作条件为：水解时 OPEFB 与溶剂的比例为 4:20 g/ml，溶剂浓度为 0.5%，水解时间为 10 分钟。由于温度模型分析不匹配，水解温度无法优化。根据预测，在这些条件下产生的葡萄糖、果糖和总糖分别为 315.51、258.24 和 573.85 mg/L。最后一步是在实验室中验证这些条件，以获得实际值。实际得到的葡萄糖、果糖和总糖分别为 300.40; 245.44; 545.84 mg/L。这项研究的误差小于 5%，表明实际值与预测值一致。© 2001 爱思唯尔科学。保留所有权利。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

South African Journal of Chemical Engineering Social Sciences-Education

CiteScore

8.40

自引率

0.00%

发文量

100

审稿时长

33 weeks

期刊介绍： The journal has a particular interest in publishing papers on the unique issues facing chemical engineering taking place in countries that are rich in resources but face specific technical and societal challenges, which require detailed knowledge of local conditions to address. Core topic areas are: Environmental process engineering • treatment and handling of waste and pollutants • the abatement of pollution, environmental process control • cleaner technologies • waste minimization • environmental chemical engineering • water treatment Reaction Engineering • modelling and simulation of reactors • transport phenomena within reacting systems • fluidization technology • reactor design Separation technologies • classic separations • novel separations Process and materials synthesis • novel synthesis of materials or processes, including but not limited to nanotechnology, ceramics, etc. Metallurgical process engineering and coal technology • novel developments related to the minerals beneficiation industry • coal technology Chemical engineering education • guides to good practice • novel approaches to learning • education beyond university.