The Institute Centre for Energy, Masdar Institute of Science and Technology, P.O. Box 54224, Abu Dhabi, UAE.
Sustainable Bioenergy Research Consortium, Masdar Institute of Science and Technology, P.O. Box 54224, Abu Dhabi, UAE.
Appl Microbiol Biotechnol. 2017 Feb;101(4):1769-1779. doi: 10.1007/s00253-016-8049-8. Epub 2016 Dec 26.
In this study Salicornia sinus-persica, a succulent halophyte was assessed for its potential to be used as a feedstock for bioethanol production. For such succulent, salty, green biomasses, direct fractionation and fermentation allow for water preservation in the process. Fresh biomass of S. sinus-persica was collected and split into two fractions by wet fractionation; liquid (juice) and solid (pulp). Sugar contents were found to be 1.0-1.5% for the juice fraction and 50% (w/w) for the fresh pulp. Direct fermentation of the juice using Saccharomyces cerevisiae showed no salt inhibition of the yeast and ethanol yields of ~70% were achieved. A pretreatment study was carried out for the pulp fraction applying mild hydrothermal pretreatment. Cellulose convertibility was found to be significantly higher for severity factors above 2.00, and the highest ethanol yield (76.91 ± 3.03%) was found at process severity of 3.06 (170 °C, 10 min).
在这项研究中，盐角草被评估为生产生物乙醇的潜在原料。对于这种多汁的咸绿色生物质，直接分馏和发酵可以在过程中节约用水。收集新鲜的盐角草生物量，并通过湿法分馏将其分为两部分：液体（汁液）和固体（果肉）。果汁部分的糖含量为 1.0-1.5%，新鲜果肉的糖含量为 50%（w/w）。使用酿酒酵母直接发酵果汁，酵母不受盐抑制，乙醇得率约为 70%。对果肉部分进行了温和的湿热预处理研究。纤维素转化率在 2.00 以上的苛刻因子下显著提高，在处理苛刻因子为 3.06（170°C，10 分钟）时，乙醇得率最高（76.91±3.03%）。
