Economic analysis and environmental impact assessment of three different fermentation processes for fructooligosaccharides production

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논문

Economic analysis and environmental impact assessment of three different fermentation processes for fructooligosaccharides production

학술지

Bioresource technology : biomass, bioenergy, biowastes, conversion technologies, biotransformations, production technologies

저자명

Mussatto, S.I.; Aguiar, L.M.; Marinha, M.I.; Jorge, R.C.; Ferreira, E.C.

초록

Three different fermentation processes for the production of fructooligosaccharides (FOS) were evaluated and compared in terms of economic aspects and environmental impact. The processes included: submerged fermentation of sucrose solution by Aspergillus japonicus using free cells or using the cells immobilized in corn cobs, and solid-state fermentation (SSF) using coffee silverskin as support material and nutrient source. The scale-up was designed using data obtained at laboratory scale and considering an annual productivity goal of 200t. SSF was the most attractive process in both economic and environmental aspects since it is able to generate FOS with higher annual productivity (232.6t) and purity (98.6%) than the other processes; reaches the highest annual profit (6.55M@?); presents the lowest payback time (2.27years); and is more favourable environmentally causing a lower carbon footprint (0.728kg/kg, expressed in mass of CO<SUB>2</SUB> equivalent per mass of FOS) and the lowest wastewater generation.

발행연도

2015

발행기관

Elsevier Applied Science

ISSN

0960-8524

권

198

페이지

pp.673-681

DOI

10.1016/j.biortech.2015.09.060