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Mixed microalgae-food waste cake for feeding of Hermetia illucens larvae in characterizing the produced biodiesel
Biomass & Bioenergy ( IF 6 ) Pub Date : 2022-09-14 , DOI: 10.1016/j.biombioe.2022.106586
Aya Hamdy Mahmoud , Mohammed Yasser Hussein , Habiba Mohamed Ibrahim , Mariam Hazem Hanafy , Sohaila Mohammed Salah , Ghada M. El-Bassiony , Eman Alaaeldin Abdelfattah

The industrial use of insects, their products, interactions, or activities has been known as industrial entomology. The current study focused on evaluating the effect of mixing the organic food waste with its half percentage of microalgae on the biodiesel production and characterization. The black soldier fly larvae (BSFL) were reared on the organic waste (OW) (fruits, vegetables, and kitchen) only and OW mixed with microalgae, Chlorella vulgaris. Additionally, the levels of oxidants and antioxidants in the biodiesel, after the antioxidants incorporation (ascorbic acid, α-tocopherol, and catechin), were evaluated. The BSFLBD was produced from lipid extraction of BSFL biomass by chloroform/methanol mixture, followed by acid catalyzed esterification and alkaline catalyzed transesterification. The biodiesel yield from the larvae fed on mixed OW-microalgae for 14 days was enhanced by 1.4 folds than the yield of OW group. The unsaturated oleic acid has the most dominant pattern in the fatty acid profile of BSFBD, even in different cases. Lauric (12:0) and myristic (14:0) acids constitute the majority of the methyl ester component of the biodiesel, with amounts of 25.6 and 7.1 for larvae fed on OW, and 25.9 and 7.7 for those fed on OW-microalgae. Following the antioxidants addition, the oxidant's concentration decreased in the biodiesel especially in the insects fed on mixed OW-microalgae. The microalgae added to the organic food waste enhanced the biodiesel quality and quantity of BSFL biomass. Also, the introduction of antioxidants didn't only improve the efficiency of the biodiesel, but also helped in the management of the stress parameters.



中文翻译:

用于喂养 Hermetia illucens 幼虫的混合微藻-食物残渣饼用于表征所生产的生物柴油

昆虫及其产品、相互作用或活动的工业用途被称为工业昆虫学。目前的研究侧重于评估将有机食物垃圾与其半百分比的微藻混合对生物柴油生产和表征的影响。黑水虻幼虫 (BSFL) 仅在有机废物 (OW)(水果、蔬菜和厨房)上饲养,并且 OW 与微藻、小球藻混合. 此外,还评估了添加抗氧化剂(抗坏血酸、α-生育酚和儿茶素)后生物柴油中的氧化剂和抗氧化剂水平。BSFLBD 是通过氯仿/甲醇混合物对 BSFL 生物质进行脂质提取,然后进行酸催化酯化和碱催化酯交换反应生产的。喂食混合OW-微藻14天的幼虫的生物柴油产量比OW组的产量提高了1.4倍。即使在不同的情况下,不饱和油酸在 BSFBD 的脂肪酸谱中也具有最主要的模式。月桂酸 (12:0) 和肉豆蔻酸 (14:0) 构成了生物柴油的大部分甲酯成分,以 OW 为食的幼虫的含量为 25.6 和 7.1,以 OW 微藻为食的幼虫为 25.9 和 7.7。添加抗氧化剂后,氧化剂在生物柴油中的浓度降低,尤其是在以混合 OW-微藻为食的昆虫中。添加到有机食物垃圾中的微藻提高了 BSFL 生物质的生物柴油质量和数量。此外,抗氧化剂的引入不仅提高了生物柴油的效率,还有助于管理压力参数。

更新日期:2022-09-14
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