Optimization of lactic acid production from Jatropha curcas L. meal using Lactobacillus acidophilus.
Date
4-2009
Degree
Bachelor of Science in Chemical Engineering
College
College of Engineering and Agro-Industrial Technology (CEAT)
Adviser/Committee Chair
Jovita L. Demafelis
Co-adviser
Laura J. Pham
Committee Member
Butch G. Bataller, Jovita L. Movillon
Abstract
Production of lactic acid from Jatropha curcas L. meal using Lactobacillus acidophilus was studied. Twelve fermentation runs were conducted at different experimental conditions with temperature (32, 37, 42°C), pH (5, 6, 7) and agitation rate (200, 300 400rpm) as parameters under investigation. Sampling for each run was done every six hours for twenty-four hours. Experimental results show that the highest lactic acid concentration (0.2344g/L) was achieved at 32°C, pH7 and 200rpm. From the response surface analysis the predicted maximum lactic acid concentration (0.2438g/L) that can be produced will be obtained at a temperature of 32°C, and 300rpm. Statistical analysis showed that none of the parameters under study has a significant effect on the production of lactic acid.
Language
English
LC Subject
Mathematical optimization, Jatropha, Lactic acid bacteria, Biodiesel, Lactobacillus
Location
UPLB College of Engineering and Agro-Industrial Technology
Call Number
LG 993.5 2009 E62 G33
Recommended Citation
Gabornes, Cherryl Faith Elejido, "Optimization of lactic acid production from Jatropha curcas L. meal using Lactobacillus acidophilus." (2009). Undergraduate Theses. 361.
https://www.ukdr.uplb.edu.ph/etd-undergrad/361
Document Type
Thesis