Addition
of 50mgL−1 carvacrol and 100mg L−1 thymol, thyme oil
or zataria oil significantly improved the vase-life by 6–7.5 days.
The improvement in vase-life in preservative solutions containing
carvacrol and thymol might be due to the fact that these are
very effective antimicrobial agents, which inhibited the microbial
growth and prevented bacterial plugging of water conducting tissues.