Production of cello-oligosaccharides through the biorefinery concept: A technical-economic and life-cycle assessment
Production of cello-oligosaccharides through the biorefinery concept: A technical-economic and life-cycle assessment
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DOI：
10.1002/bbb.2276
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发表时间：
2021-08-16
影响因子：
3.9
通讯作者：
Goldbeck, Rosana
中科院分区：
文献类型：
--
作者：
Barbosa, Fernando C.;Nogueira, Guilherme P.;Goldbeck, Rosana
生产商寻求联合产品来增加价值链和生产灵活性。以纤维素为底物生产功能性低聚糖，具有较高的市场价值。由于文献中很少描述COS/纤维戊糖的生产工艺，本研究估算了纤维五糖的生产成本，并对以前开发的以甘蔗秸秆为底物的纤维五糖生产工艺进行了生命周期评估。结果表明，通过研究的六种方案，可以获得在0.40美元/毫克和1.15美元/毫克之间变化的纤维素单位生产成本，上游部门的优化可以降低工厂的总直接成本和对整个生命周期的影响。研究结果还表明，对水解液的固液比有更好的了解是降低散料成本所必需的。对环境的影响也减少了16.2%到19.9%。就一体化生物精炼概念而言，甘蔗秸秆发酵是生产COS的一种有前景的技术。(C)2021年化学工业学会和John Wiley&Sons，Ltd.
Producers look for co-products to increase the value chain and production flexibility. With a high market aggregate value, the production of cello-oligosaccharides (COS) as functional oligosaccharides from cellulosic substrates has been investigated. As COS/cellopentaose production process are rarely described in the literature, this study estimated the cellopentaose production cost and performed a life-cycle assessment of the cellopentaose production process previously developed using sugarcane straw as a substrate. The results demonstrated that, through the six scenarios studied, it was possible to obtain a cellopentaose unit production cost varying between USD 0.40 and 1.15/mg, and that optimization in the upstream sector can reduce the total plant direct cost and the overall life-cycle impact. The results also suggested that a better understanding of the hydrolysis solid/liquid proportion is necessary to reduce the bulk material cost. An environmental impact reduction of between 16.2% and 19.9% was also observed. In terms of the integrated biorefinery concept, sugarcane straw fermentation represents a prospective technology for the production of COS. (c) 2021 Society of Chemical Industry and John Wiley & Sons, Ltd