SPIRO-ISOHUMULONES

On-site Quality Control of Beer Quantification of Isohumulones and Reduced Isohumulones Using the Agilent 1220 Infinity Mobile LC Solution

This Application Note shows the analysis of isohumulones in different beer samples using the Agilent 1220 Infinity Mobile LC Solution. Direct injection of beer samples and isocratic elution mode enables the user to perform easy on-site measurements in a mobile laboratory without time-consuming sample preparation or method development. With this setup, nonreduced and reduced isohumulone standard...

Dum Spiro, Spero

It is my sad editorial duty to acknowledge that Professor David Hadden, previous editor of this Journal died earlier this year. As a previous editor he has his obituary published here and I thank Professor Patrick Bell for rising to this sad task so diligently. David bore his final illness with great dignity, clearly determined that while he was alive, he would live (dum vivimus, vivamus). The ...

Spiro Table of Contents

Spiro Table of Contents

Prenylated indole diketopiperazine alkaloids, spiro-

Peroxy-containing metabolitesare an interesting group amongbiological active natural compounds. These metabolites contain a peroxide group (-O-O-) in which each oxygen atom is bonded to the other oxygen an to another atom. β-Oxygen in hydroperoxide group is considered as moreactive.Present review describes research on more than 100 natural hydroperoxidesand rare acyclic peroxides isolated from ...