Use of Fluorometry to Differentiate Among Clipped Species in the Genera Astragalus, Oxytropis, and Pleuraphis

  title={Use of Fluorometry to Differentiate Among Clipped Species in the Genera Astragalus, Oxytropis, and Pleuraphis},
  author={Dean M. Anderson and Gary D. Rayson and Safwan M. Obeidat and Michael H. Ralphs and Rick Estell and Ed L. Fredrickson and Eric Parker and Perry Gray},
Abstract A rapid and reproducible method to determine botanical composition of forage is an ecological and economic goal for range animal ecologists. Multidimensional fluorometry previously demonstrated the possibility of a unique optical approach for accurately determining species composition of clipped and digested plant materials. Fluorometry may be used to detect toxic plants in standing crop as well as diets by using electronic transitions in chemical structures at wavelengths between 370… 
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Blue fluorescence emission seems to be caused by substances like the alkaloid berberine and quercetin, while Riboflavine, NADPH and phyllohydroquinoneK1 seem to contribute little to the BF and GF emission as compared to the other plant compounds.
Preparative isolation of swainsonine from locoweed: extraction and purification procedures.
The trihydroxy indolizidine alkaloid swainsonine, a plant toxin with potent alpha-mannosidase-inhibitory activity and chemotherapeutic potential, was isolated in gram quantities from locoweed by continuous liquid/liquid extraction procedure and purified by formation of the chloroform-soluble methylboronate derivative.
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Livestock poisoning by plants is one of the serious causes of economic loss to the livestock industry. Losses can be classified as either direct or indirect. Direct losses include deaths, weight
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