2012 ©
             Publication
Journal Publication
Research Title Evaluation of Medium Compositions for Producing Cells and Spores of Probiotic Bacillus sp. B51f 
Date of Distribution 30 August 2014 
Conference
     Title of the Conference Seoul International Conference on Biological Engineering & Natural Science 
     Organiser Higher Education Forum 
     Conference Place Courtyard by Marriott Seoul Times Square, South Korea 
     Province/State Seoul, South Korea 
     Conference Date 29 August 2014 
     To 31 August 2014 
Proceeding Paper
     Volume
     Issue
     Page 217-224 
     Editors/edition/publisher  
     Abstract Bacteria in the genus Bacillus have increasingly gained much interest as probiotics supplemented in human and animal diets. This is mainly due to their ability in producing spores that well survive the adverse environmental conditions. The aim of this work was to evaluate the medium compositions for cell and spore production of the probiotic Bacillus sp. B51f. The one-factor-at-a-time experiments were performed to examine the effects of inorganic nitrogen sources [(NH4Cl, (NH4)2SO4, NH4H2PO4, KNO3], carbon and energy source (cassava starch), growth factors (crushed brewer‘s yeast: CBY) and trace elements (MgSO47H2O, MnSO4H2O, CaCl22H2O) in supporting bacterial cell growth and sporulation of Bacillus B51f. The results showed that the medium containing 1% NH4Cl, 2% tapioca starch and 0.25% CBY yielded the highest growth of Bacillus B51f at a greater than 2x108 CFU ml-1 after 2 days of incubation. It was also found that the medium containing the combination of MgSO47H2O (0.05%), MnSO4H2O (0.005%) and CaCl22H2O (0.01%) significantly enhanced spore yield (107-108 spores ml-1) when compared to the commercial Nutrient broth (106 spores ml-1). Therefore, the optimal medium compositions for producing cells and spores of Bacillus sp. B51f were 1% NH4Cl, 2% tapioca starch, 0.25% CBY, 0.05% MgSO47H2O, 0.005% MnSO4H2O and 0.01% CaCl22H2O. 
Author
545020040-0 Mr. YURANAN PHINIJMONTREE [Main Author]
Science Master's Degree
537020060-7 Miss RATCHANU MEIDONG
Science Doctoral Degree

Peer Review Status มีผู้ประเมินอิสระ 
Level of Conference นานาชาติ 
Type of Proceeding Full paper 
Type of Presentation Oral 
Part of thesis true 
Presentation awarding false 
Attach file
Citation 0