Abstract Microalgae have been accepted as a potential feedstock for biofuel production due to their high oil content and rapid biomass production. In this study, deoiled Scenedesmus obliquus (SO) was used for evaluating whether deoiled algal biomass residue is potential as an alternative energy resource for bio-ethanol production with different heterogeneous catalysts. The SO biomass was examined for its physiochemical properties and also evaluated using FTIR, XRD, and TGA techniques. The successful hydrolysis of SO was performed employing different eco-friendly bio-based heterogeneous catalysts and hydrolysate thus obtained was then subjected to fermentation using Saccharomyces cerevisiaeand was analyzed through HPLC and GC which resulted in the production of bio-ethanol with the highest yield of 68.32 % at 8.24 g/L concentration.

中文翻译：

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生物乙醇生产：使用源自废物的生物基多相催化剂实现燃料可持续性的途径

摘要 微藻因其含油量高和生物质生产速度快而被认为是生产生物燃料的潜在原料。在这项研究中，脱油栅藻 (SO) 用于评估脱油藻类生物质残留物是否有潜力作为使用不同多相催化剂生产生物乙醇的替代能源。对 SO 生物质的理化性质进行了检查，并使用 FTIR、XRD 和 TGA 技术进行了评估。SO的成功水解采用不同的环保生物基多相催化剂进行，水解产物用酿酒酵母进行发酵，并通过HPLC和GC分析，得到最高产率为68.32的生物乙醇% 在 8.24 g/L 浓度下。