Chemical characterization and opioid activity of an exorphin isolated from in vivo digests of casein

The in vivo formation of an opioid peptide (exorphin) derived from beta-casein has been proved for the first time. It was isolated from duodenal chyme of minipigs after feeding with the milk protein casein. The exorphin has been identified as a beta-casein fragment by end-group determinations and qualitative amino acid analysis of the purified peptide. This peptide, named beta-casomorphin-11, displayed substantial opioid activity in an opiate receptor-binding assay.     

Über einige Unkrautgesellschaften von Maisäckern auf Teneriffa

Zusammenfassüng Es werden einige Unkrautgesellschaften von Maisäckern auf Teneriffa beschrieben. In den Artenverbindungen der Gesellschaften spiegeln sich die Klimaunterschiede von Luv- und Lecseite, die Bewässcrungsintensität und der Bodeneinfluß wider.

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Summary This paper will give information about the floristic composition of some weed communities growing together with maize cultivated on Teneriffa. Their floristic composition becomes influenced by the differences of climate, soil and irrigation.