RESEARCH JOURNAL OF FOOD SCIENCE AND QUALITY CONTROL (RJFSQC )
E-ISSN 2504-6145
P-ISSN 2695-2459
VOL. 9 NO. 2 2023
DOI: https://www.doi.org/10.56201/rjfsqc.v9.no2.2023.pg92.110
Obiesie, C., Barber, L.I., Akusu, O.M., Kiin-Kabari, D
The objective of this work was to optimize the mixture components of banana, soursop juice and sugar in the process conditions of time and inoculum size, as it affects pH and specific gravity in wine production, using combine optimal design in response surface methodology (RSM). High alcohol tolerant yeast was isolated from raffia palm wine, characterized and used for the fermentation process. The fitted regression model for the response variables were significant (p<0.05). Pure error sum of squares for pH and specific gravity (SG) were respectively 0.0677 and 0.0018, with non-significant lack-of-fit (p>0.05). Coefficient of variation (CV) values were 2.90 and 2.17% for pH and SG, respectively. Coefficient of determination (R2) for both models were significantly high, with values of 99.41 and 97.84 %, respectively for pH and specific gravity. Adequate precession values were significantly high (19.08 and 8.92). Predicted optimum condition and desirability index was 0.856, obtained respectively at 58.3, 20.0 and 21.7 % banana, soursop and sugar mix, and 2.70 % inoculum size fermented for 7 days. This optimum condition is recommended for wine production from fruit tropical juices.
Fermentation, Banana, Soursop, Wine, Optimization
Adeyanju, J.A., Ogunlakin, G.O., Adekunle, A.A., Alawode, G.E. and Majekolagbe, O.S.
(2016). Optimization of oil extraction from coconut using response surface
methodology. Journal of Chemical and Pharmaceutical Research, 8 (1): 374-381.
AOAC. (2012). Association of Official Analytical Chemist. Official Method of Analysis of AOAC
International, 19th ed. Gaithersburg MD, USA: AOAC International.
Arroyo-López, F. N., Orli?, S., Querol, A., &Barrio, E. (2009). Effects of temperature, pH
andsugar concentration on the growth parameters of Saccharomyces cerevisiae,
S. kudriavzevii and their interspecific hybrid. International Journal of Food
Microbiology, 131(2-3), 120-127