Pullulan production from brewery wastes by Aureobasidium pullulans |
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Authors: | Roukas T |
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Institution: | (1) Department of Food Science and Technology, Aristotle University of Thessaloniki, Box 250, 540 06 Thessaloniki, Greece, Fax |
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Abstract: | The production of pullulan from brewery wastes by Aureobasidium pullulans in shake flask culture was investigated. The maximum pullulan concentration (6.0g/l) was obtained after 72h of fermentation. The external addition of nutrients into the spent grain liquor improved significantly the production of pullulan. In this case, the highest values of pullulan concentration (11.0±0.5g/l), pullulan yield (48.2±1.5%), and sugar utilization (99.0±0.5%) were obtained in the medium (pH 6.5–7.5) supplemented with K2HPO4 0.5%, l-glutamic acid 1%, olive oil 2.5%, and Tween 800.5%. |
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Keywords: | Aureobasidium pullulans brewery wastes pullulan shake flask culture |
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