... 4°~ -5° Usage: Citronella oil can be extracted directly citronellal, geraniol, citronella alcohol, but also the three most important ... flavor, especially incense flavor. Can be restored to citronellal citronellol, citronella oil directly to many of perfumery raw ... for "high-pressure hydrogenation method" to restore one of citronellal, due to "high-pressure hydrogenation," will inevitably generate ...