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1，8-Cineole
Alias：Eucalyptol；1，8-Epoxy-p-Menthane
Code：
GB I 1740；FEMA 2465
Chemical
Structure：
Empirical
Formula：C10H18O Relative
Molecular Mass:154.25
Properties：
Achromatic
oil-state liquid.
Boiling
Point 176℃.
Crystal
when frozen. Freezing Point higher than 1℃.
Slightly
resolvable in water 0.4%～0.6%.
Resolvable in Propanediol. Mutually
resolvable with Ethanol and Oil.
Extract
Method：
Fractionated from some essence oil containing rich 1,8-Cineole（with
fraction range 170～180℃）. For example, Eucalyptus Globulus Oil ,containing about
60% 1，8-Cineole，can
be fractionated from and then be seperated from to get the 1，8-Cineole.
Quality
Standards
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Item
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Index
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QB/T2243－96
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FCC(Ⅳ)
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EOA
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Color
and State
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Achromatous
Liquid
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Achromatous
Liquid
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Achromatous Liquid
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Aroma
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Characteristic
Fragrance and irritative cool scent of Camphor
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Characteristic
Fragrance and irritative cool scent
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Characteristic Fragrance and irritative
cool scent
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Relative
Density(25/25℃)
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0.920～0.925
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0.921～0.924
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0.921～0.924
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Refractive
index（20℃）
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1.4550～1.4600
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1.455～1.460
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1.455～1.460
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Optical
Rotation（25℃）
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－0.5°～+0.5°
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－0.5°～+0.5°
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－0.5°～+0.5°
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Solubility
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1mL
resolvable in 5mL60% Ethanol
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1mL
resolvable in 5mL60% Ethanol
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1mL resolvable in 5mL60% Ethanol
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Freezing
point/℃≥
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0.8
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0
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0
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Toxicology
according to:
GRAS
FEMA 2465；FDA
172.515。
Usage:
Use
range and Dosage:
（1）It
is stipulated in Chinese "Hygienic Standards for Food Additives
in Use"（GB
2760-1996）that,
appropriate dosage of the substance can be applied in confecting
varieties of foodstuff flavoring essence.
（2）Stipulated
in FEMA, the highest reference dosage of the substance employed in
different foodstuff is respectively as follows: 0.13㎎/㎏
in soft drink；0.50㎎/㎏
in ice cream and other edible ice; 15㎎/㎏
in candy；0.5～4.0㎎/㎏ in baked and toasted foodstuff；190㎎/㎏
in gum。
（3）Actual
Dosage employment reference：1,8-Cineol
is fresh, has diffusibility and a cool and fresh scent like camphor.
It is poor in persistent. It tastes sweet, fresh and cool, like
camphor. It is widely used in foodstuff flavoring essence,
especially in oral health medicament，dentifrice，gargle，cough syrup, etc.. The
normal density in the final flavored products is 1～15㎎/㎏，while
it can reach as high as 200㎎/㎏ in Gum.
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