| Author | Pruet Pathirapong |
| Call Number | AIT Thesis no.FB-09-18 |
| Subject(s) | Corn--Drying
|
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science in Food Engineering and Bioprocess Technology, School of Environment, Resources and Development |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. no. FB-09-18 |
| Abstract | Corn distillers dried grains with solubles (DDGS) was fermented by three known probiotics: L. plantarum, P. acidilactici and S. boulardii. Considerable protein and Total Dietary Fiber (TDF) content in DDGS accounted for 29% and 30% (d.b.), respectively. Four growth media were prepared: l) unmodified DDGS, 2) enzyme-modified DDGS with cellulase and pectinase, 3) supplemented DDGS with starch and soy protein concentrate (20 and 10% w/w respectively) and hydrolyzing enzyme including cellulase, pectinase, a-amylase, glucoamylase and protease, and 4) synthetic media. After enzyme modification, the third media showed the best results of TDF reduction (10% d.b.) and total reducing sugar content (0.82 mg). All the media was inoculated at 10⁸ CFU/mL by either of microorganism and fermented for 72 h. The greatest specific growth rate (u) was observed from S. boulardii grown on the first media (0.64 h⁻¹). P. acidilactici had Jl of 0.17 h⁻¹ in all DDGS-based media. L. plantarum had the lowest Jl of about 0.07 in all media. The highest lactate yield (YP/S) was found from L. plantarum grown on the first media (1.59 gig). Protein in DDGS, which was highly digestible (about 97%) already, improved slightly further to 99% upon fermentation. The greatest reduction of phytate was discovered from S. boulardii grown on the second media (31 %). It is expected that modification of DDGS via probiotic fermentation will enhance its inclusion levels in monogastric animals and poultry |
| Year | 2009 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. no. FB-09-18 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Department of Food, Agriculture and Natural Resources (Former title: Department of Food Agriculture, and BioResources (DFAB)) |
| Academic Program/FoS | Food Engineering and Bioprocess Technology (FB) |
| Chairperson(s) | Rakshit, Sudip Kumar; |
| Examination Committee(s) | Athapol Noomhorm;Amararatne Yakupitiyage;Lamsal, Buddhi P.; |
| Scholarship Donor(s) | RTG Fellowship; |
| Degree | Thesis (M. Sc.) - Asian Institute of Technology, 2009 |