CLOVE STEM OIL Chemische Eigenschaften,Einsatz,Produktion Methoden
Chemische Eigenschaften
Clove stem oil is obtained in about 5% yield by steam distillation of the dried
flower stems. It is a yellow to light brown oil with a sweet–spicy, slightly
woody odor similar to that of bud oil but without the fresh, fruity top note.
d
2020 1.041–1.059; n
20D 1.5310–1.5360; α
20D ?1 ° to +1 °; phenol content:
85–95% (v/v); content by GC: eugenol 83–92%, caryophyllene 4–12%, eugenol acetate 0.5–4%.
Physikalische Eigenschaften
When fairly fresh and well stored it is a pale-yellow to straw-yellow liquid. It is soluble in fixed
oils and in propylene glycol, but it is relatively insoluble in glycerin and in mineral oil.
Occurrence
Found in the stems of the tree Eugenia caryophyllata Thunb. (Fam. Myrtaceae) (Fenarolfs Handbook of Flavor Ingredients, 1971).
synthetische
By steam distillation of the dried stems of E. caryophyllata Thunb. after removal of the buds.
Essential oil composition
Similar to the leaf oil, clove stem oil has a high composition of eugenol, making it a preferred source for
eugenol and subsequent conversion to isoeugenol, derivatives of eugenol and vanillin. Caryophyllene, furfural and methyl alcohol are
also present. Trace quantities of naphthalene and a bicyclic sesquiterpene alcohol may be present in the stem oil. Little or no eugenyl
acetate is present.
Pharmakologie
In a pharmacological study using rat, guinea-pig and rabbit organs, clove oil was
found to have antihistaminic and musculotropic spasmolytic activity (Debelmas & Rochat, 1967).
Clove oil showed musculotropic (papaverine-like) antispasmodic activity against the isolated small
intestine of the mouse (Imaseki and Kitabatake, 1962).
CLOVE STEM OIL Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
