Bioethanol Production from Corn Meal Hydrolyzates by Immobilized Saccharomyces cerevisiae var. ellipsoideus
Апстракт
Bioethanol can be produced by fermentation of sugars from waste agricultural materials. In this process immobilized yeast offer advantage over free cell suspension with regard to ethanol productivity, fermentation rate and product inhibition. The aim of the present study was to investigate the immobilization of Sacharomyces cerevisiae var. ellipsoideus yeast cells for bioethanol production from corn meal hydrolyzates. For this purpose the biocompatible polymers such as: PVA and Ca-alginate were assessed. The conditions of ethanol fermentation, such as inoculum concentration in different carriers, fermentation rate and the choice of a convenient carrier for the efficient ethanol production were studied, The maximum ethanol concentration of 10.05% (w/w) was obtained in the fermentation of corn meal hydrolyzates by 5% (v/v) inoculum concentration of the yeast immobilized in Ca-alginate using a method of electrostatic droplet generation. The repeated batch fermentation with the yeast immob...ilized in Ca-alginate at an initial sugar concentration of 176g/l, indicated that alginate gels degraded after the second fermentation cycle and 76 hours. In contrast, PVA carrier exhibited better mechanical properties and stability, however lower ethanol concentrations were achieved during the fermentation.
Кључне речи:
corn meal hydrolyzates / bioethanol / immobilization / Sacharomyces cerevisiae var. ellipsoideusИзвор:
Proceedings - 2008 Joint Central European Congress: 4th Central European Congress on Food, CEFood 20, 2008, 2, 343-349Издавач:
- 2008 Joint Central European Congress of the 4th Central European Congress on Food, CEFood 2008 and 6th Croatian Congress of Food Technologists, Biotechnologists and Nutritionists
Институција/група
Tehnološko-metalurški fakultetTY - CONF AU - Mojović, Ljiljana AU - Nedović, Viktor AU - Rakin, Marica AU - Nikolić, Svetlana AU - Lević, Steva PY - 2008 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1217 AB - Bioethanol can be produced by fermentation of sugars from waste agricultural materials. In this process immobilized yeast offer advantage over free cell suspension with regard to ethanol productivity, fermentation rate and product inhibition. The aim of the present study was to investigate the immobilization of Sacharomyces cerevisiae var. ellipsoideus yeast cells for bioethanol production from corn meal hydrolyzates. For this purpose the biocompatible polymers such as: PVA and Ca-alginate were assessed. The conditions of ethanol fermentation, such as inoculum concentration in different carriers, fermentation rate and the choice of a convenient carrier for the efficient ethanol production were studied, The maximum ethanol concentration of 10.05% (w/w) was obtained in the fermentation of corn meal hydrolyzates by 5% (v/v) inoculum concentration of the yeast immobilized in Ca-alginate using a method of electrostatic droplet generation. The repeated batch fermentation with the yeast immobilized in Ca-alginate at an initial sugar concentration of 176g/l, indicated that alginate gels degraded after the second fermentation cycle and 76 hours. In contrast, PVA carrier exhibited better mechanical properties and stability, however lower ethanol concentrations were achieved during the fermentation. PB - 2008 Joint Central European Congress of the 4th Central European Congress on Food, CEFood 2008 and 6th Croatian Congress of Food Technologists, Biotechnologists and Nutritionists C3 - Proceedings - 2008 Joint Central European Congress: 4th Central European Congress on Food, CEFood 20 T1 - Bioethanol Production from Corn Meal Hydrolyzates by Immobilized Saccharomyces cerevisiae var. ellipsoideus EP - 349 SP - 343 VL - 2 UR - https://hdl.handle.net/21.15107/rcub_technorep_1217 ER -
@conference{ author = "Mojović, Ljiljana and Nedović, Viktor and Rakin, Marica and Nikolić, Svetlana and Lević, Steva", year = "2008", abstract = "Bioethanol can be produced by fermentation of sugars from waste agricultural materials. In this process immobilized yeast offer advantage over free cell suspension with regard to ethanol productivity, fermentation rate and product inhibition. The aim of the present study was to investigate the immobilization of Sacharomyces cerevisiae var. ellipsoideus yeast cells for bioethanol production from corn meal hydrolyzates. For this purpose the biocompatible polymers such as: PVA and Ca-alginate were assessed. The conditions of ethanol fermentation, such as inoculum concentration in different carriers, fermentation rate and the choice of a convenient carrier for the efficient ethanol production were studied, The maximum ethanol concentration of 10.05% (w/w) was obtained in the fermentation of corn meal hydrolyzates by 5% (v/v) inoculum concentration of the yeast immobilized in Ca-alginate using a method of electrostatic droplet generation. The repeated batch fermentation with the yeast immobilized in Ca-alginate at an initial sugar concentration of 176g/l, indicated that alginate gels degraded after the second fermentation cycle and 76 hours. In contrast, PVA carrier exhibited better mechanical properties and stability, however lower ethanol concentrations were achieved during the fermentation.", publisher = "2008 Joint Central European Congress of the 4th Central European Congress on Food, CEFood 2008 and 6th Croatian Congress of Food Technologists, Biotechnologists and Nutritionists", journal = "Proceedings - 2008 Joint Central European Congress: 4th Central European Congress on Food, CEFood 20", title = "Bioethanol Production from Corn Meal Hydrolyzates by Immobilized Saccharomyces cerevisiae var. ellipsoideus", pages = "349-343", volume = "2", url = "https://hdl.handle.net/21.15107/rcub_technorep_1217" }
Mojović, L., Nedović, V., Rakin, M., Nikolić, S.,& Lević, S.. (2008). Bioethanol Production from Corn Meal Hydrolyzates by Immobilized Saccharomyces cerevisiae var. ellipsoideus. in Proceedings - 2008 Joint Central European Congress: 4th Central European Congress on Food, CEFood 20 2008 Joint Central European Congress of the 4th Central European Congress on Food, CEFood 2008 and 6th Croatian Congress of Food Technologists, Biotechnologists and Nutritionists., 2, 343-349. https://hdl.handle.net/21.15107/rcub_technorep_1217
Mojović L, Nedović V, Rakin M, Nikolić S, Lević S. Bioethanol Production from Corn Meal Hydrolyzates by Immobilized Saccharomyces cerevisiae var. ellipsoideus. in Proceedings - 2008 Joint Central European Congress: 4th Central European Congress on Food, CEFood 20. 2008;2:343-349. https://hdl.handle.net/21.15107/rcub_technorep_1217 .
Mojović, Ljiljana, Nedović, Viktor, Rakin, Marica, Nikolić, Svetlana, Lević, Steva, "Bioethanol Production from Corn Meal Hydrolyzates by Immobilized Saccharomyces cerevisiae var. ellipsoideus" in Proceedings - 2008 Joint Central European Congress: 4th Central European Congress on Food, CEFood 20, 2 (2008):343-349, https://hdl.handle.net/21.15107/rcub_technorep_1217 .