3-Halogenoalkoxytributyltin compounds prepared from 1,3-halogenohydrins and tributyltin ethoxyde decompose at 200° leading to the corresponding oxetanes. This reaction is a very convenient method of preparation of this kind of heterocycles.
The Formation and Hydrolysis of Barley Malt Gel-Protein Under Different Mashing Conditions
作者:S. Pöyri、M. Mikola、T. Sontag-Strohm、A. Kaukovirta-Norja、S. Home
DOI:10.1002/j.2050-0416.2002.tb00550.x
日期:——
oxidation and proteolysis on the amount of gel-protein aggregate was investigated both in vivo during mashing and in vitro. The oxidation of the free thiol groups of proteins to disulphide bridges during mashing appeared to be a good indicator of the formation of gel-protein aggregate. The pH optimum of the oxidation varied according to the isothermal mashing temperature. The results suggested that the