期刊
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
卷 93, 期 10, 页码 2833-2841出版社
WILEY
DOI: 10.1002/jctb.5633
关键词
biosurfactants; bioplasticizers; rhamnolipids; sophorolipids; enzymatic catalysis; life cycle assesment
类别
资金
- European Commission
- programme 'Development of novel environmentally added-value surfactants and esters by biotechnological processes from fats and oils waste streams (Bio-SURFEST)' [FP7-SME-2011-286834]
- FP7-PEOPLE-2013-IEF-Marie Curie Action: Intra-European Fellowships for Career Development [625774]
BACKGROUNDThis study investigated the biotransformation of fats and waste oils to glycolipid biosurfactants and bioplasticizers. The ecological performance and environmental impacts of the bioprocesses were evaluated aiming to assess their present environmental status and thus suggest future improvements using life cycle assessment (LCA) methodology. RESULTSBiosurfactants, namely rhamnolipids and sophorolipids, were obtained via fermentation. Bioplasticizers, fatty acid ethyl esters (FAEE) and monoglycerides (MAG), were developed via enzymatic catalysis with selected enzymes in mesophilic temperatures via ethanolysis and glycerolysis, respectively. The study revealed that air emissions, electricity and thermal energy requirements are the key contributors to the potential environmental impacts in the life cycle impact assessment (LCIA). More specifically, rhamnolipids production has less energetic needs compared with sophorolipids manufacturing, resulting in lower environmental impacts. The increased thermal requirements of the MAG production phase is the main contributor to their negative environmental performance, with the overall energy consumption for MAG production being 3-fold higher than for the FAEE formation phase. CONCLUSIONSThe assessment identified that among the biosurfactant production processes, sophorolipids production resulted in 22.7% higher environmental impact compared with rhamnolipids. Similarly, FAEE production can be classified as a more environment- friendly process compared with MAG, resulting in 67% lower environmental impact based on the environmental indicators assessed. (c) 2018 Society of Chemical Industry
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据