| Developing selenium-enriched animal feed and biofuel from canola planted for managing Se-laden drainage waters in the westside of central California. | |
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MedLine Citation:
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PMID: 20734619 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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We studied the reuse of selenium (Se)-laden effluent for producing canola (Brassica napus) and subsequent bioproducts in central California. Canola was irrigated with poor quality waters [electrical conductivity (EC) of approximately 5 dS m(-1) sulfate-salinity, 5 mg B L(-1), and 0.25 mg Se L(-1)]. Typical seed yields were 2.2 metric tons ha(-1). Seeds were processed for their oil, and transesterified to produce ASTM-quality biodiesel (BD) blends. The resulting Se-enriched seed cake meal (containing approximately 2 mg Se kg(-1) DM) was used in a dairy feed trial. Seventy-two Jersey and Holstein cows, 36 respectively, were fed Se-enriched canola meal as 6.2% of their daily feed ration for five weeks. Blood and milk samples were collected weekly and analyzed for total Se. This study showed that Se-enriched canola meal did not significantly increase total blood Se content in either cow breed. Milk Se concentrations did, however, significantly increase to safe levels of 59 microg Se L(-1) and 52 microg Se L(-1) in Jersey and Holstein cows, respectively. The production of BD 20 biofuels and Se-enriched feed meal from canola irrigated with poor quality waters may help sustain similar phytomanagement strategies under Se-rich conditions. |
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Authors:
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G S Bañuelos; J Da Roche; J Robinson |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: International journal of phytoremediation Volume: 12 ISSN: 1522-6514 ISO Abbreviation: Int J Phytoremediation Publication Date: 2010 Mar |
Date Detail:
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Created Date: 2010-08-25 Completed Date: 2010-12-21 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101136878 Medline TA: Int J Phytoremediation Country: United States |
Other Details:
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Languages: eng Pagination: 243-54 Citation Subset: IM |
Affiliation:
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USDA-ARS 9611 S. Riverbend Ave, Parlier, CA 93648, USA. gary.banuelos@ars.usda.gov |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animal Feed
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analysis* Animals Biodegradation, Environmental Biofuels / analysis* Brassica napus / growth & development* California Cattle Dairying Drainage, Sanitary* Milk / chemistry Selenium / analysis*, blood Waste Disposal, Fluid* Water Purification* |
| Chemical | |
Reg. No./Substance:
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0/Biofuels; 7782-49-2/Selenium |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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