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Updated: May 6, 2026

Extraction of Plant-based Capsules for Microencapsulation Applications
Published on: November 9, 2016
p-Coumaric acid - a monomer in the sporopollenin skeleton
K Wehling1, C Niester, J J Boon
1Botanisches Institut der Westfälischen Wilhelms-Universität, Schloßgarten 3, D-4400, Münster/Westfalen, Federal Republic of Germany.
Abstract:
Sporopollenin obtained from wings of Pinus mugo (Turra) pollen was analysed by pyrolysis mass spectrometry. In the spectrum, mass peaks which are characteristic for p-coumaric acid were dominant. p-Coumaric acid was the main degradation compound when the wing material was treated by a gentle method using AII3, and also when the remaining residue of the treated sporopollenin material was saponified. It is therefore assumed that p-coumaric acid is a genuine structural unit in the sporopollenin skeleton. In addition, the effects of AII3 treatment indicate that the p-coumaric acid might be bound by ether linkages.
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