A new diacylgalactolipid containing 4Z‐16∶1 from the marine cyanobacterium Oscillatoria sp

Abstract

<jats:title>Abstract</jats:title><jats:p>A new diacylgalactolipid was isolated from the marine cyanobacterium <jats:italic>Oscillatoria</jats:italic> sp., and the structure was elucidated as (2<jats:italic>S</jats:italic>)‐3‐<jats:italic>O</jats:italic>‐β‐<jats:sc>d</jats:sc>‐galactopyranosyl‐1‐<jats:italic>O</jats:italic>‐(9<jats:italic>Z</jats:italic>,12<jats:italic>Z</jats:italic>‐octadecadienoyl)‐2‐<jats:italic>O</jats:italic>‐(4<jats:italic>Z</jats:italic>‐hexadecenoyl)glycerol by enzymatic partial hydrolysis using lipase and physicochemical evidence, which included determining the double bond position in the hexadecenoic acid moiety.