Operating parameters in open culture fermentation of sugars

被引：2

作者：

Chwialkowska, Joanna ^{[1
]}

Smaga, Lukasz ^{[2
]}

Oleskowicz-Popiel, Piotr ^{[1
]}

机构：

[1] Poznan Univ Tech, Fac Environm Engn & Energy, Water Supply & Bioecon Div, Berdychowo 4, PL-60965 Poznan, Poland

[2] Adam Mickiewicz Univ, Fac Math & Comp Sci, Dept Math Stat & Data Anal, Uniwersytetu Poznanskiego 4, PL-61614 Poznan, Poland

来源：

BIOSYSTEMS ENGINEERING | 2021年 / 210卷

关键词：

Glucose; Xylose; Galactose; Maize silage; Open culture fermentation; Carboxylic acids; VOLATILE FATTY-ACIDS; ANAEROBIC-DIGESTION; FOOD WASTE; ACIDOGENIC FERMENTATION; METHANE PRODUCTION; ACTIVATED-SLUDGE; PH; PRETREATMENT; HYDROGEN; VFAS;

D O I：

10.1016/j.biosystemseng.2021.08.002

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Open culture fermentation (OCF) is a promising technology for converting different organic waste into carboxylic acids (CAs) and alcohols in the context of biorefinery. This study investigated OCF to enhance the production of CAs and alcohols from three different monosaccharides: glucose, xylose, galactose and a mixture of two sugars: glucose with galactose. In addition, more complex substrates, such as maize silage and strawberry wastewater were used as well. The investigated variables included following operational parameters: substrate type, pH, retention time and sugar loading. Promising results were obtained for complex substrates. The highest CAs yield was noticed for raw maize silage at pH 8 and RT 1 day. For monosaccharides the most efficient process was the co- fermentation (glucose/galactose) (substrate loading 4 g L-1). CAs composition varied with the changing pH and type of sugar and substrate: in neutral conditions, acetic acid; in acidic conditions, acetic and butyric acids; and in alkaline conditions butyric acid were dominant, respectively. Statistical inference showed optimal conditions for the production designing experiments aiming at particular CA. (C) 2021 IAgrE. Published by Elsevier Ltd. All rights reserved.

引用

页码：78 / 90

页数：13

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