Optimization of Ulva sp. Decomposition using H2SO4 with Microwave-Assisted Hydrolysis Method as Feedstock of Bioethanol

CHEESA Pub Date : 2023-06-07 DOI:10.25273/cheesa.v6i1.14682.13-25

Bekti Palupi, Muhammad Rizalluddin, Kiki Septianti, Istiqomah Rahmawati, Boy Arief Fachri, Meta Fitri Rizkiana, Helda Wika Amini

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Abstract

Bioethanol is a renewable energy used to reduce dependence on fossil fuels, which have negative impacts on the environment. Furthermore, Ulva sp. contains high levels of carbohydrates, making it potentially suitable as a raw material for bioethanol production. Therefore, this study aims to determine the optimal decomposition process using the microwave-assisted hydrolysis method with an acid solvent (H₂SO₄), by examining the effects of acid concentration, hydrolysis time, and microwave power. Optimization was carried out using several parameters such as hydrolysis time, microwave power, and the ratio of raw materials to solvents. The ANOVA test results showed that the hydrolysis variable parameter had a significant effect on the reducing sugar content obtained, evidenced by the R² value of 0.9892. The highest reducing sugar content of 19.71 mg/mL was produced under the operating conditions of 15 min hydrolysis time, 450 W microwave power, and 0.065 g/mL ratio of raw material to solvents.

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以H2SO4为原料微波辅助水解Ulva sp分解生物乙醇的优化研究

生物乙醇是一种可再生能源，用于减少对对环境有负面影响的化石燃料的依赖。此外，Ulva sp含有高水平的碳水化合物，使其潜在地适合作为生物乙醇生产的原料。因此，本研究旨在通过考察酸浓度、水解时间和微波功率的影响，确定在酸性溶剂(H2SO4)下微波辅助水解法的最佳分解工艺。采用水解时间、微波功率、原料溶剂比等参数对其进行优化。方差分析结果表明，水解变量参数对得到的还原糖含量有显著影响，由R2值0.9892。在水解时间15 min、微波功率450 W、原料与溶剂比0.065 g/mL的条件下，还原糖含量最高，为19.71 mg/mL。

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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CHEESA

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8 weeks