Figure 1.

GC-FID chromatograms of the fraction of steroids and neutral triterpenoids obtained from chloroform extracts of cuticular waxes of lingonberry fruit harvested in three developmental stages (young berries in June, unripen full-size berries in July, and ripen berries in late August). 1—campesterol, 2—stigmasterol, 3—sitosterol, 4—sitostanol, 5—cycloartanol, 6—β-amyrin, 7—α-amyrin/lupeol, 8—tremulone, 9—fernenol, 10—24-methylenecycloartanol, 11—svertenol, 12—taraxasterol, 13—friedelin, 14—oleanolic aldehyde, 15—ursolic aldehyde, 16—erythrodiol, 17—uvaol, 18—betulin.