Documents disponibles écrits par cet auteur

Enhanced production of bioxylitol from corn cobs by candida magnoliae / Kiyoshi Tada in Industrial & engineering chemistry research, Vol. 51 N° 30 (Août 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 30 (Août 2012) . - pp. 10008-10014 Titre : Enhanced production of bioxylitol from corn cobs by candida magnoliae Type de document : texte imprimé Auteurs : Kiyoshi Tada, Auteur ; Tohru Kanno, Auteur ; Jun-ichi Horiuchi, Auteur Année de publication : 2012 Article en page(s) : pp. 10008-10014 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Production Résumé : An effective microbial process using Candida magnoliae was developed for xylitol production from xylose obtained from com cob. The hydrolysate containing approximately 25 g-xylose/L and 3.0 g-glucose/L was obtained from 100 g-corn cobs/L by 1.0―3.096 sulfuric acid with 60 min of hydrolysis time. The com cob hydrolysate was then treated by charcoal pellets which selectively removed more than 90% of inhibitors without affecting xylose concentration. Using the hydrolysate medium treated with the charcoal pellets, xylitol production using C. magnolia was successfully performed, resulting in a final production of approximately 18 g-xylitol/L from 25 g-xylose/L within 36 h. In total, 15―18 g xylitol could be produced from 100 g of com cobs. From the batch experiments operated under strictly controlled oxygen supply conditions, it was found that the successful xylitol production occurred at the narrow range of the oxygen transfer rate (OTR) from 0.8 mmol-O2/L·h to 4.7 mmol·O2/L·h. A two-step fermentation consisting of the cell growth step using normal hydrolysate medium and the xylitol production step using the concentrated corn cob hydrolysate was effective to avoid serious inhibitory effect and to realize a high concentration of xylitol production (approximately 49 g/L). ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26201413 [article] Enhanced production of bioxylitol from corn cobs by candida magnoliae [texte imprimé] / Kiyoshi Tada, Auteur ; Tohru Kanno, Auteur ; Jun-ichi Horiuchi, Auteur . - 2012 . - pp. 10008-10014. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 30 (Août 2012) . - pp. 10008-10014 Mots-clés : Production Résumé : An effective microbial process using Candida magnoliae was developed for xylitol production from xylose obtained from com cob. The hydrolysate containing approximately 25 g-xylose/L and 3.0 g-glucose/L was obtained from 100 g-corn cobs/L by 1.0―3.096 sulfuric acid with 60 min of hydrolysis time. The com cob hydrolysate was then treated by charcoal pellets which selectively removed more than 90% of inhibitors without affecting xylose concentration. Using the hydrolysate medium treated with the charcoal pellets, xylitol production using C. magnolia was successfully performed, resulting in a final production of approximately 18 g-xylitol/L from 25 g-xylose/L within 36 h. In total, 15―18 g xylitol could be produced from 100 g of com cobs. From the batch experiments operated under strictly controlled oxygen supply conditions, it was found that the successful xylitol production occurred at the narrow range of the oxygen transfer rate (OTR) from 0.8 mmol-O2/L·h to 4.7 mmol·O2/L·h. A two-step fermentation consisting of the cell growth step using normal hydrolysate medium and the xylitol production step using the concentrated corn cob hydrolysate was effective to avoid serious inhibitory effect and to realize a high concentration of xylitol production (approximately 49 g/L). ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26201413