| dc.contributor.author | Cobb, Bonnie Finn | |
| dc.description.abstract | Two experiments were completed to develop methods for extracting xanthophylls from corn industry co-products, post fermentation (PF) corn oil and corn gluten meal (CGM). A solid phase extraction (SPE) method was used to fractionate a xanthophyll-rich portion of PF corn oil by varying conditioning and eluting solvents used with a diol SPE column. Conditioning with dichloromethane yielded highest xanthophyll fractionation, 86.5%. The elution solvent selected did not impact fractionation based on a two-way ANOVA. Supercritical fluid extraction of xanthohpylls from CGM was modeled using a Box-Behnken design, varying temperature, pressure, and co-solvent ratio. The optimum conditions were determined to be 40 °C, 6820 psi, and 15% co-solvent, which would extract 85.4 µg lutein/g CGM, 2.6 times more lutein than an ethanol and chloroform: dichloromethane solvent extraction. Co-solvent was the most influential extraction parameter and increasing it further could yield higher xanthophyll recovery. With further studies, this work has industrial potential. | en_US |
| dc.publisher | North Dakota State University | en_US |
| dc.rights | NDSU Policy 190.6.2 | |
| dc.title | Extracting Carotenoids from Corn Industry Coproducts | en_US |
| dc.type | Thesis | en_US |
| dc.date.accessioned | 2018-06-08T20:01:16Z | |
| dc.date.available | 2018-06-08T20:01:16Z | |
| dc.date.issued | 2016 | en_US |
| dc.identifier.uri | https://hdl.handle.net/10365/28243 | |
| dc.description.sponsorship | Golden Growers; North Dakota Corn Council | en_US |
| dc.rights.uri | https://www.ndsu.edu/fileadmin/policy/190.pdf | |
| ndsu.degree | Master of Science (MS) | en_US |
| ndsu.college | Agriculture, Food Systems and Natural Resources | |
| ndsu.department | Agricultural and Biosystems Engineering | en_US |
| ndsu.program | Agricultural and Biosystems Engineering | en_US |
| ndsu.advisor | Pryor, Scott W. | |
