Sinapinic acid
Sinapinic acid, or sinapic acid, is a small naturally occurring hydroxycinnamic acid. It is a member of the phenylpropanoid family. It is a commonly used matrix in MALDI mass spectrometry. It is a useful matrix for a wide variety of peptides and proteins. It serves well as a matrix for MALDI due to its ability to absorb laser radiation and to also donate protons to the analyte of interest.
Sinapic acid can form dimers with itself and ferulic acid in cereal cell walls and therefore may have a similar influence on cell-wall structure to that of the diferulic acids.
Sinapine is an alkaloidal amine found in black mustard seeds. It is considered a choline ester of sinapinic acid.Natural occurrences
Sinapinic acid can be found in wine and vinegar.Metabolism
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 -malate to produce D-glucose and sinapoyl--malate.is a phenolic compound found in crude canola oil. It is produced by decarboxylation of sinapic acid during canola seed roasting.
