This study aimed at comparing the ability of two indigenous yeast species; Pichia kudriavzevii strains GY1 and L9 with a strain of Saccharomyces cerevisiae, to consume sugars (fructose, galactose, glucose, lactose, sucrose and molasses) and to convert them into ethanol during fermentation. Yeast extract (6g/L), peptone (10g/L), malt extract (6g/L) broth was supplemented with different concentrations (5g/L, 10g/L, 20g/L, 30g/L) of fructose, galactose, glucose, lactose and sucrose respectively. Sugar utilization post incubation for 96 hours at 120 rpm, 30 degree Celsius (°C) was measured using a refractometer. The alcoholic yield using molasses for Pichia kudriavzevii strain GY1 10±0.2 (mg/ml) was significantly higher than that of Pichia kudriavzevii strain L9 (4±0.2 mg/ml) and Saccharomyces cerevisiae strain T (5±0.2 mg/ml) at 96 hours. Strains that produced highest concentration ethanol was Pichia kudriavzevii strain L9 in 3.0% (v/v) galactose and fructose respectively, which measured at 7.1±0.48 (mg/ml) and 12.2±0.64 (mg/ml). All studied isolates produced the same amount of ethanol 9.1±0.52 (mg/ml). The use of highly adaptable non Saccharomyces yeast species to a variety of sugars in the pursuit of enhanced ethanol production creates a unique prospective for large scale industrial applications.
Published in | Advances in Applied Sciences (Volume 2, Issue 5) |
DOI | 10.11648/j.aas.20170205.13 |
Page(s) | 69-74 |
Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
Copyright |
Copyright © The Author(s), 2017. Published by Science Publishing Group |
Alcoholic Fermentation, Pichia kudriavzevii, Fructose, Glucose, Galactose, Lactose, Sucrose
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APA Style
Gidado Rose Suniso Maxwell, Olatiilu Olukemi Anna, Etuk-Udo Godwin Akpan, Isu Rosemary Nennaya, Solomon Bamidele Ogbe. (2017). Ethanol Production by Alcohol Tolerant Yeasts Using Different Carbohydrate Sources. Advances in Applied Sciences, 2(5), 69-74. https://doi.org/10.11648/j.aas.20170205.13
ACS Style
Gidado Rose Suniso Maxwell; Olatiilu Olukemi Anna; Etuk-Udo Godwin Akpan; Isu Rosemary Nennaya; Solomon Bamidele Ogbe. Ethanol Production by Alcohol Tolerant Yeasts Using Different Carbohydrate Sources. Adv. Appl. Sci. 2017, 2(5), 69-74. doi: 10.11648/j.aas.20170205.13
AMA Style
Gidado Rose Suniso Maxwell, Olatiilu Olukemi Anna, Etuk-Udo Godwin Akpan, Isu Rosemary Nennaya, Solomon Bamidele Ogbe. Ethanol Production by Alcohol Tolerant Yeasts Using Different Carbohydrate Sources. Adv Appl Sci. 2017;2(5):69-74. doi: 10.11648/j.aas.20170205.13
@article{10.11648/j.aas.20170205.13, author = {Gidado Rose Suniso Maxwell and Olatiilu Olukemi Anna and Etuk-Udo Godwin Akpan and Isu Rosemary Nennaya and Solomon Bamidele Ogbe}, title = {Ethanol Production by Alcohol Tolerant Yeasts Using Different Carbohydrate Sources}, journal = {Advances in Applied Sciences}, volume = {2}, number = {5}, pages = {69-74}, doi = {10.11648/j.aas.20170205.13}, url = {https://doi.org/10.11648/j.aas.20170205.13}, eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.aas.20170205.13}, abstract = {This study aimed at comparing the ability of two indigenous yeast species; Pichia kudriavzevii strains GY1 and L9 with a strain of Saccharomyces cerevisiae, to consume sugars (fructose, galactose, glucose, lactose, sucrose and molasses) and to convert them into ethanol during fermentation. Yeast extract (6g/L), peptone (10g/L), malt extract (6g/L) broth was supplemented with different concentrations (5g/L, 10g/L, 20g/L, 30g/L) of fructose, galactose, glucose, lactose and sucrose respectively. Sugar utilization post incubation for 96 hours at 120 rpm, 30 degree Celsius (°C) was measured using a refractometer. The alcoholic yield using molasses for Pichia kudriavzevii strain GY1 10±0.2 (mg/ml) was significantly higher than that of Pichia kudriavzevii strain L9 (4±0.2 mg/ml) and Saccharomyces cerevisiae strain T (5±0.2 mg/ml) at 96 hours. Strains that produced highest concentration ethanol was Pichia kudriavzevii strain L9 in 3.0% (v/v) galactose and fructose respectively, which measured at 7.1±0.48 (mg/ml) and 12.2±0.64 (mg/ml). All studied isolates produced the same amount of ethanol 9.1±0.52 (mg/ml). The use of highly adaptable non Saccharomyces yeast species to a variety of sugars in the pursuit of enhanced ethanol production creates a unique prospective for large scale industrial applications.}, year = {2017} }
TY - JOUR T1 - Ethanol Production by Alcohol Tolerant Yeasts Using Different Carbohydrate Sources AU - Gidado Rose Suniso Maxwell AU - Olatiilu Olukemi Anna AU - Etuk-Udo Godwin Akpan AU - Isu Rosemary Nennaya AU - Solomon Bamidele Ogbe Y1 - 2017/10/16 PY - 2017 N1 - https://doi.org/10.11648/j.aas.20170205.13 DO - 10.11648/j.aas.20170205.13 T2 - Advances in Applied Sciences JF - Advances in Applied Sciences JO - Advances in Applied Sciences SP - 69 EP - 74 PB - Science Publishing Group SN - 2575-1514 UR - https://doi.org/10.11648/j.aas.20170205.13 AB - This study aimed at comparing the ability of two indigenous yeast species; Pichia kudriavzevii strains GY1 and L9 with a strain of Saccharomyces cerevisiae, to consume sugars (fructose, galactose, glucose, lactose, sucrose and molasses) and to convert them into ethanol during fermentation. Yeast extract (6g/L), peptone (10g/L), malt extract (6g/L) broth was supplemented with different concentrations (5g/L, 10g/L, 20g/L, 30g/L) of fructose, galactose, glucose, lactose and sucrose respectively. Sugar utilization post incubation for 96 hours at 120 rpm, 30 degree Celsius (°C) was measured using a refractometer. The alcoholic yield using molasses for Pichia kudriavzevii strain GY1 10±0.2 (mg/ml) was significantly higher than that of Pichia kudriavzevii strain L9 (4±0.2 mg/ml) and Saccharomyces cerevisiae strain T (5±0.2 mg/ml) at 96 hours. Strains that produced highest concentration ethanol was Pichia kudriavzevii strain L9 in 3.0% (v/v) galactose and fructose respectively, which measured at 7.1±0.48 (mg/ml) and 12.2±0.64 (mg/ml). All studied isolates produced the same amount of ethanol 9.1±0.52 (mg/ml). The use of highly adaptable non Saccharomyces yeast species to a variety of sugars in the pursuit of enhanced ethanol production creates a unique prospective for large scale industrial applications. VL - 2 IS - 5 ER -