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. 2012 Jun 26;11(2):263–284. doi: 10.1007/s11101-012-9241-9

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© The Author(s) 2012

This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited.

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Fig. 1 — Structures of some triterpenoids occurring in apple (M. pumila) fruit cuticular waxes: ursolic acid (1), uvaol (2), 2α-hydroxyursolic acid (3), 3β-trans-cinnamoyloxy-2α-hydroxyurs-12-en-28-oic acid (4), 3β-trans-p-coumaroyloxy-2α-hydroxyurs-12-en-28-oic acid (5)