Germa crenes

Picaud et al. purified recombinant AMDS and determined its pH optimum to 6.5 [24]. Several sesquiterpene synthases show maximum activity in this range examples are tobacco 5-epz-aristolochene synthase [25,26], germa-crene A synthase from chickory [26] and nerolidol synthase from maize [27]. Terpenoid synthases are, however, not restricted to a pH optimum in this range. Intriguing examples are the two (-l-)-(5-cadinene synthase variants from cotton, which exhibit maximum activity at pH 8.7 and 7-7.5, respectively [28] and 8-epi-cedrol synthase from A. annua [29] with the pH optimum around... 

Volatile oil with riowi-P-famesene, germa-crene D, P-caryophyllene, camphor, cineole, -dodecane, /)-cymol, a-pinene, methanol, allyl mustard, and an unidentified terpene acetate (36% of oil content). ... 

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