Department of Chemistry, University of Aveiro, CICECO, Campus de Santiago, Portugal.
Bioresour Technol. 2011 Aug;102(15):7354-60. doi: 10.1016/j.biortech.2011.04.081. Epub 2011 Apr 29.
Bacterial cellulose (BC), a very peculiar form of cellulose, is gaining considerable importance due to its unique properties. In this study, several residues, from agro-forestry industries, namely grape skins aqueous extract, cheese whey, crude glycerol and sulfite pulping liquor were evaluated as economic carbon and nutrient sources for the production of BC. The most relevant BC amounts attained with the residues from the wine and pulp industries were 0.6 and 0.3 g/L, respectively, followed by biodiesel crude residue and cheese whey with productions of about, 0.1 g/L after 96 h of incubation. Preliminary results on the addition of other nutrient sources (yeast extract, nitrogen and phosphate) to the residues-based culture media indicated that, in general, these BC productions could be increased by ~200% and ~100% for the crude glycerol and grape skins, respectively, after the addition organic or inorganic nitrogen.
细菌纤维素 (BC) 是一种非常特殊的纤维素形式，由于其独特的性质而受到越来越多的关注。在这项研究中，评估了几种农业林业工业的残留物，即葡萄皮水提物、奶酪乳清、粗甘油和亚硫酸盐制浆废液，作为生产 BC 的经济碳源和营养源。来自葡萄酒和纸浆工业的残留物产生的 BC 量最多，分别为 0.6 和 0.3 g/L，随后是生物柴油粗残渣和奶酪乳清，在 96 小时的孵育后产生约 0.1 g/L 的 BC。关于向基于残留物的培养基中添加其他营养源（酵母提取物、氮和磷）的初步结果表明，一般来说，在添加有机或无机氮后，粗甘油和葡萄皮的 BC 产量分别可增加约 200%和 100%。
