Utilization of residues from agro-forest industries in the production of high value bacterial cellulose

• Published in: Bioresource technology Vol. 102; no. 15; pp. 7354 - 7360
• Main Authors: Carreira, Pedro, Mendes, Joana A.S., Trovatti, Eliane, Serafim, Luísa S., Freire, Carmen S.R., Silvestre, Armando J.D., Neto, Carlos Pascoal
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 01.08.2011; Elsevier
• Subjects: Agriculture; Agro-forest residues; Agronomy. Soil science and plant productions; Bacteria; Bacteria - drug effects; Bacteria - metabolism; Bacterial cellulose production; Biological and medical sciences; Biorefinery; Biotechnology - methods; Carbon - pharmacology; Carbon sources; Cellulose; Cellulose - biosynthesis; Cheese; Fundamental and applied biological sciences. Psychology; General agronomy. Plant production; Glycerols; Grapes; Industrial Waste - analysis; Nutrients; Residues; Trees - chemistry; Use of agricultural and forest wastes. Biomass use, bioconversion; Vitaceae; Whey; Bacterial cellulose production; Biorefinery; Agro-forest residues; Carbon sources; High value; Residue; Cellulose; Agricultural industry; Bacteria; Agricultural waste; Carbon; Agroforestry
• ISSN: 0960-8524; 1873-2976
• DOI: 10.1016/j.biortech.2011.04.081

► Agro-forestry residues were successfully used as carbon sources for the production of BC. ► The most relevant results were attained with wine and pulp industries residues; 0.6 and 0.3g/L of BC. ► BC production from theses residues is enormously improved by addition of nitrogen and phosphate. 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 0.3g/L, respectively, followed by biodiesel crude residue and cheese whey with productions of about, 0.1g/L after 96h 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.