Characterization and Bioconversion of Great Northern Bean Blancher Effluent |
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| Authors: | B N MUGGIO M A UEBERSAX G L HOSFIELD S S THOMPSON |
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| Affiliation: | Author Muggio is with Gordon Food Service, Grand Rapids, MI 49501.;Author Uebersax is with the Dept. of Food Science &Human Nutrition, Michigan State Univ., East Lansing, MI 48824.;Author Thompson is with the Dept. of Microbiology and Public Health, Michigan State Univ., East Lansing, MI 48824.;Author Hosfield is affiliated with the USDA/Dept. of Crop &Soil Sciences, Michigan State Univ., East Lansing, MI 48824. |
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| Abstract: | Chemical characterization of blanching effluent and bioconversion by Hansenula anamola was performed. The effluent contained 27,000 mg/L BOD and 31,000 mg/L total solids including 49.5% starch and 23.6% protein (dry basis). A high biochemical oxygen demand (BOD): chemical oxygen demand (COD) ratio (0.95) indicated a waste easily and completely degradable, with nitrogen and phosphorus levels above those necessary for unimpeded microbial growth. Batch fermentations of raw effluent produced 12g dry cells/L, containing 53% protein, with a corresponding 84% reduction in BOD. Great Northern bean blanching effluent was demonstrated to be a suitable growth medium for H. anomala. |
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