Two propolis samples, collected at different location on Gran Canaria
(Canary Islands) were analysed by TLC and CC-MS. In volatiles sesquite
rpenoids predominated, while alcoholic extracts mainly contain furofur
an lignans and carbohydrates. Partial structures of two new lignans ar
e proposed. (C) 1998 Published by Elsevier Science Ltd. All rights res
erved.