Parametric study on the growth of Lactobacillus plantarum (Orla-Jensen) Bergey et al. for the production of propbiotic soy drink
Date
6-2015
Degree
Bachelor of Science in Chemical Engineering
College
College of Engineering and Agro-Industrial Technology (CEAT)
Adviser/Committee Chair
Jeanne Michelle T. Valencia
Restrictions
Restricted: Not available to the general public. Access is available only after consultation with author/thesis adviser and only to those bound by the confidentiality agreement.
Abstract
In this study, the effects of varying concentrations of guava leaf extract powder, soya extract powder, and white sugar on the viability of Lactobacillus plantarum F39 were analyzed using a 2^k factorial design of experiment. Ranges of the different factors were established prior to 2^k factorial experiment. Media with different cobinations of factors were inoculated with 2% v/v L. plantarum (Orla-Jensen) Bergey et al., adjusted to pH 6.5, and incubated at 37°C for 24 hours. RResults showed that high viable cell counts (log CFU/mL) were obtained fro media containing 0.2% w/v to 0.6% w/v guava leaf extract powder, 0.3% N to 0.5% N soya extract powder, and 2% w/v to 4% w/v white sugar. Analysis of variance showed that only the soya extract powder concentration significantly increased the viable cell count of L. plantarum (Orla-Jensen) Bergey et al.
Language
English
Location
UPLB College of Engineering and Agro-Industrial Technology (CEAT)
Call Number
LG 993.5 2015 E62 /G55
Recommended Citation
Gil, Kayzel Loryn Y., "Parametric study on the growth of Lactobacillus plantarum (Orla-Jensen) Bergey et al. for the production of propbiotic soy drink" (2015). Undergraduate Theses. 4018.
https://www.ukdr.uplb.edu.ph/etd-undergrad/4018
Document Type
Thesis