Sinapinic acid

Sinapic acid is found widely in plants including those used for human nutrition. Some common sinapic acid conjugates include esters with malate and choline (sinapine). For example, it can be found in wine, vinegar, and black plums. Sinapine is found in black mustard seeds. It is considered a choline ester of sinapinic acid. Sinapic acid has attracted much interest as an antioxidant Sinapic acid can form dimers with itself (one structure) and ferulic acid (three different structures) in cereal cell walls and therefore may have a similar influence on cell-wall structure to that of the diferulic acids. == Metabolism ==

Sinapate 1-glucosyltransferase is an enzyme that uses UDP-glucose and sinapate to produce UDP and 1-sinapoyl-D-glucose. Sinapoylglucose—malate O-sinapoyltransferase is an enzyme that uses 1-O-sinapoyl-beta-D-glucose and (S)-malate to produce D-glucose and sinapoyl-(S)-malate. == Related compounds ==

Canolol is a phenolic compound found in crude canola oil. It is produced by decarboxylation of sinapic acid during canola seed roasting. ==Research==

Sinapic acid is a used in MALDI mass spectrometry. It serves well as a matrix for MALDI due to its ability to absorb laser radiation and to also donate protons (H+) to the analyte of interest. == See also ==