Upcycling nutrients derived from food waste via microalgae cultivation: A review on impacts on cellular compounds, economy and environment analyses for achieving circular bioeconomy

IF 3.7 3区生物学 Q2 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Biochemical Engineering Journal Pub Date : 2024-08-05 DOI:10.1016/j.bej.2024.109454

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引用次数: 0

Abstract

Food waste generation is an unavoidable issue due to the increase in the human population and economic growth worldwide. Therefore, it is crucial to explore various eco-friendly and sustainable waste management practices to reduce these environmental impacts while creating value-added products derived from these food waste resources. The cultivation of microalgae can contribute to the global carbon neutrality process and help reduce the emission of greenhouse gases into the environment. However, several concerns such as food safety, quality, social acceptability, and the perception of using food waste to cultivate microalgae remain uncertain in the current food waste management. This review provides a comprehensive assessment of the biochemical mechanisms involved in the metabolization process of microalgae, assimilating organic compounds derived from food waste sources and emphasizing the importance of understanding these complex processes. This review also explores the intricate relationships among the variations in food waste composition, hydrolysis processes, and nutrient bio-accessibility during cultivation of microalgae. Furthermore, we conducted a thorough evaluation of techno-economic analyses and life cycle assessments from various literature sources, highlighting several key elements such as the economic feasibility and environmental impacts of producing microalgae biomass from food waste. Finally, this review summarizes the future outlook and way forward in upcycling food waste with microalgae biotechnology by providing several recommendations for improvement.

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通过微藻类培养实现食物垃圾营养物质的再循环：实现循环生物经济对细胞化合物、经济和环境影响分析综述

随着全球人口的增长和经济的发展，食物垃圾的产生已成为一个不可避免的问题。因此，探索各种生态友好和可持续的废物管理方法，以减少对环境的影响，同时利用这些食物废物资源创造增值产品，是至关重要的。微藻的种植可以促进全球碳中和进程，有助于减少环境中温室气体的排放。然而，在当前的厨余管理中，食品安全、质量、社会接受度以及对利用厨余培养微藻的看法等几个问题仍然存在不确定性。本综述全面评估了微藻新陈代谢过程中涉及的生化机制，吸收来自厨余来源的有机化合物，并强调了了解这些复杂过程的重要性。这篇综述还探讨了微藻类培养过程中食物垃圾成分、水解过程和营养物质生物可及性之间错综复杂的关系。此外，我们还对各种文献来源中的技术经济分析和生命周期评估进行了全面评估，突出了几个关键要素，如利用食物垃圾生产微藻生物质的经济可行性和环境影响。最后，本综述总结了利用微藻生物技术对厨余垃圾进行升级再循环的未来展望和前进方向，并提出了若干改进建议。

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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来源期刊

Biochemical Engineering Journal 工程技术-工程：化工

CiteScore

7.10

自引率

5.10%

发文量

380

审稿时长

34 days

期刊介绍： The Biochemical Engineering Journal aims to promote progress in the crucial chemical engineering aspects of the development of biological processes associated with everything from raw materials preparation to product recovery relevant to industries as diverse as medical/healthcare, industrial biotechnology, and environmental biotechnology. The Journal welcomes full length original research papers, short communications, and review papers* in the following research fields: Biocatalysis (enzyme or microbial) and biotransformations, including immobilized biocatalyst preparation and kinetics Biosensors and Biodevices including biofabrication and novel fuel cell development Bioseparations including scale-up and protein refolding/renaturation Environmental Bioengineering including bioconversion, bioremediation, and microbial fuel cells Bioreactor Systems including characterization, optimization and scale-up Bioresources and Biorefinery Engineering including biomass conversion, biofuels, bioenergy, and optimization Industrial Biotechnology including specialty chemicals, platform chemicals and neutraceuticals Biomaterials and Tissue Engineering including bioartificial organs, cell encapsulation, and controlled release Cell Culture Engineering (plant, animal or insect cells) including viral vectors, monoclonal antibodies, recombinant proteins, vaccines, and secondary metabolites Cell Therapies and Stem Cells including pluripotent, mesenchymal and hematopoietic stem cells; immunotherapies; tissue-specific differentiation; and cryopreservation Metabolic Engineering, Systems and Synthetic Biology including OMICS, bioinformatics, in silico biology, and metabolic flux analysis Protein Engineering including enzyme engineering and directed evolution.