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Synthesis and Optimization of Sago-Based Biochemical Value Chain

机译:基于Sago的生化价值链的合成与优化

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Sago palm is one of the main food crops in South-East Asia as it contains the sago starch that can be manufactured into food products (e.g. noodles, biscuits, etc.) and biofuels (e.g. bioethanol, etc.). Sago starch is produced via sago starch extraction process (SSEP) while wastes such as sago barks (SB), sago fibres (SF) and sago wastewater (SW) are produced from the SSEP. As the demand for sago starch increased over the recent years, the waste management of the sago wastes has gained more attention. From several studies, it was found that conversion of sago wastes into value-added products are feasible. A mathematical model was also developed to help the sago mill owners to determine the pathways with maximum overall profit and minimum overall carbon footprint (CFP) to convert the sago wastes into value-added products. However, the research did not take the intermediates such as xylose and mannose into consideration but these intermediates can be also converted into value-added products (e.g. xylitol and mannitol). Since there are more technologies and value-added products to be considered, the study was extended to develop an optimum biochemical value chain based on sago wastes with maximum overall profit and minimum overall carbon footprint (CFP). Since the optimization objectives (maximum overall profit and minimum overall CFP) are conflicting with each other, the concept of fuzzy optimization has been adopted in this work. This mathematical modelling was developed using a commercial optimization software, LINGO 18.0. The developed model was then illustrated and validated by solving a case study to determine the sago wastes conversion pathway with optimum overall profit and overall carbon footprint (CFP). This developed model can act as a decisionmaking tool for the sago mill owners to decide the sago wastes treatment pathways based on the economic and environmental performance.
机译:Sago Palm是东南亚的主要粮食作物之一,因为它含有可以制造成食品的Sago淀粉(例如面条,饼干等)和生物燃料(例如生物乙醇等)。西米淀粉通过而废物如西米树皮(SB),西米纤维(SF)和西米废水(SW)从SSEP产生西米淀粉提取处理(SSEP)制作。随着对近年来对Sago淀粉的需求增加,Sago废物的废物管理已经获得更多关注。从几项研究来看,发现Sago废物转化为增值产品是可行的。还开发了一个数学模型,帮助Sago Mill业主确定具有最大整体利润和最小总碳足迹(CFP)的途径,以将SAGO废物转化为增值产品。然而,研究没有考虑到木糖和甘露糖等中间体,但这些中间体也可以转化为增值产物(例如木糖醇和甘露醇)。由于还有更多的技术和增值产品,因此延长了基于Sago废物的最佳生化价值链,最大限度地盈利和最低总碳足迹(CFP)。由于优化目标(最大总利润和最低总体CFP)相互冲突,因此在这项工作中采用了模糊优化的概念。该数学建模是使用商业优化软件,Lingo 18.0开发的。然后通过解决案例研究来确定和验证开发的模型,以确定SAGO废物转化途径,具有最佳的整体利润和整体碳足迹(CFP)。这款开发的模型可以作为Sago Mill业主的决策工具,以确定基于经济和环境绩效的Sago废物处理途径。

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