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首页> 外文期刊>Journal of Cleaner Production >Food waste valorization advocating Circular Bioeconomy - A critical review of potentialities and perspectives of spent coffee grounds biorefinery
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Food waste valorization advocating Circular Bioeconomy - A critical review of potentialities and perspectives of spent coffee grounds biorefinery

机译：倡导循环生物经济的餐厨垃圾增值-对废咖啡渣生物精炼厂的潜力和前景的评论

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摘要

Waste biorefineries are instrumental for advocating Circular Bioeconomy. Food waste valorization is a goal of sustainable development, gaining high interest in resolving environmental and resources challenges. Coffee use generates massive quantities of spent coffee grounds (SCG), a resource rich in fatty acids, amino acids, polyphenols, minerals, and polysaccharides. This review aims to shed light on the potentialities, prospects, and challenges of the transition from a mono-process to a cascade SCG biorefinery, in a circular economy thinking. It was found that mono-process approaches of SCG extraction have been investigated by many researchers, while SGC biorefining approaches are still at an early stage of research. Studies on SCG biorefineries, their environmental and economic assessment are few in the literature, therefore imitations in extrapolating information and comparing the results were faced. It was made evident that more studies are needed on the economic assessment of the mono-process SCG break down, at higher Technology Reediness Level (TRL) for realistic assessments. Efficient conversion of SCG in a cascade biorefinery depends on the spectrum of various end-products and cost-effective processing schemes. Lipids and/or polysaccharides extraction followed by the conversion of by-streams to energy and biochar, in a closing loop concept, has good potentialities. The review allowed the exploration of knowledge-based strategies to unlock the potential of SCG for bio-derived chemicals, carbon materials, fuels and fertilizer production and probably impacting waste management regulations. Some guidelines for the sustainable design of SCG biorefineries were provided. (C) 2018 Elsevier Ltd. All rights reserved.
机译：废物生物精炼厂有助于倡导循环生物经济。粮食浪费的计价是可持续发展的目标，引起人们对解决环境和资源挑战的浓厚兴趣。使用咖啡会产生大量的废咖啡渣（SCG），这是一种富含脂肪酸，氨基酸，多酚，矿物质和多糖的资源。这篇综述的目的是在循环经济的思想中阐明从单一工艺向SCG级联生物精炼厂过渡的潜力，前景和挑战。已经发现，许多研究人员已经研究了SCG提取的单过程方法，而SGC生物精制方法仍处于研究的早期阶段。关于SCG生物精炼厂及其环境和经济评估的研究文献很少，因此面临模仿信息外推和比较结果的挑战。显然，需要对单工艺SCG分解的经济评估进行更多的研究，并在更高的技术干性水平（TRL）下进行现实评估。级联生物精炼厂中SCG的有效转化取决于各种最终产品的范围和具有成本效益的加工方案。在闭环概念中，脂类和/或多糖的提取，然后将旁流转化为能量和生物炭，具有良好的潜力。审查允许探索基于知识的策略，以释放SCG在生物衍生化学品，碳材料，燃料和化肥生产中的潜力，并可能影响废物管理法规。提供了一些关于SCG生物精炼厂可持续设计的准则。 （C）2018 Elsevier Ltd.保留所有权利。

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