Department of Biotechnology, Karunya Institute of Technology and Sciences, Coimbatore 641114, India.
Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City, Taiwan; Sustainable Environment Research Center, National Kaohsiung University of Science and Technology, Kaohsiung City 81157, Taiwan; Centre for Energy and Environmental Sustainability, Lucknow 226 029, India.
Bioresour Technol. 2022 Aug;358:127390. doi: 10.1016/j.biortech.2022.127390. Epub 2022 May 27.
Increased urbanization and industrialization accelerated demand for energy, large-scale waste output, and negative environmental consequences. Therefore, the implementation of an effective solid-waste-management (SWM) policy for the handling of food waste is of great importance. The global food waste generation is estimated at about 1.6 gigatons/yr which attributes to an economic revenue of 750 billion USD. It can be converted into high-value enzymes, surfactants, Poly-hydroxybutyrate, biofuels, etc. However, the heterogeneous composition of food with high organic load and varying moisture content makes their transformation into value-added products difficult. This review aims to bring forth the possibilities and repercussions of food waste management. The socio-economic challenges related to SWM are comprehensively discussed particularly in terms of environmental concern. The engineering aspect in the collection, storage, and biotransformation of food waste into useful value-added products such as biofuels, advanced biomaterials, bioactive compounds, and platform chemicals are critically reviewed for efficient food waste management.
城市化和工业化的加速发展增加了对能源的需求，导致了大规模的废物排放和负面的环境后果。因此，实施有效的固体废物管理（SWM）政策来处理食物垃圾非常重要。全球食物浪费估计约为 16 亿吨/年，这相当于 7500 亿美元的经济收入。这些食物垃圾可以转化为高价值的酶、表面活性剂、聚羟基丁酸酯、生物燃料等。然而，由于食物的成分复杂，有机负荷高，含水量变化大，因此将其转化为高附加值产品具有一定的难度。本综述旨在探讨食物垃圾管理的可能性和影响。本文全面讨论了与 SWM 相关的社会经济挑战，特别是从环境角度来看。在收集、储存和生物转化食物垃圾为有用的附加值产品，如生物燃料、先进的生物材料、生物活性化合物和平台化学品方面，本文从工程角度进行了批判性的评论，以实现有效的食物垃圾管理。
