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Τίτλος: Bioprocess development for the production of succinic acid from orange peel waste
Συγγραφείς: Patsalou,  Maria 
Pateraki, Chrysanthi 
Vasquez Christodoulou, Marlen 
Drouza, Chryssoula 
Koutinas, Michalis 
Major Field of Science: Agricultural Sciences
Field Category: Chemical Sciences
Λέξεις-κλειδιά: Orange peel waste;Industrial biotechnology;Fermentation;Succinic acid;A. succinogenes;T. reese
Ημερομηνία Έκδοσης: 23-Ιου-2016
Πηγή: 4th International Conference on Sustainable Solid Waste Management, 2016, 23-25 June, Limassol, Cyprus
Conference: 4th International Conference on Sustainable Solid Waste Management 
Περίληψη: A preliminary study has been conducted for the development of a bioprocess targeting the valorization of orange peel waste (OPW). Essential oils and pectin were recovered from OPW through distillation, acid hydrolysis and precipitation with ethanol. Optimal conditions for dilute-acid hydrolysis were investigated via estimation of the sugars released and fermentation. Hydrolysis conditions of 109 o C for 20 min and 116 o C for 10 min using 5 % of dry raw material produced the highest sugar yields at 0.76 and 0.77 (gtotal sugars gdry raw material-1) respectively. In order to test the efficiency of enzyme hydrolysis as a pretreatment method for OPW valorization, cellulase production from T. reesei was investigated, which was maximized following 5 days of cultivation. Furthermore, elemental analysis in hydrolyzates from dilute-acid hydrolysis and a combination of acid and enzyme hydrolysis was performed. The results indicate that during acid/enzyme hydrolysis, high concentrations of Mg2+ and Ca2+ ions are liberated in contrast to dilute-acid hydrolysis. A. succinogenes fermentations of glucose and fructose were performed and the succinic acid yields achieved were 0.66 (gsuccinic acid gglucose-1) and 0.33 (gsuccinic acid gfructose-1) respectively, while galactose was not fermented. Overall, OPW may serve as a promising raw material for simultaneous production of essential oils, pectin and succinic acid.
URI: https://hdl.handle.net/20.500.14279/29216
Type: Conference Papers
Affiliation: Cyprus University of Technology 
Agricultural University of Athens 
Εμφανίζεται στις συλλογές:Δημοσιεύσεις σε συνέδρια /Conference papers or poster or presentation

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