Changes in chemical composition of rose-scented geranium (Pelargonium sp.) oil during storage

A comparison between properly stored and improperly stored (containing a small amount of water, half-filled in aluminum container and stored under ambient conditions) rose-scented geranium oil was made. It was found that the menthone, citronellol and citronellyl formate contents increased significan...

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Bibliographic Details
Published in:The Journal of essential oil research 1997, Vol.9 (1), p.115-117
Main Authors: Kaul, Pran N., Rajeswara Rao, Bhaskarunl R., Bhattacharya, Aran K., Mallavarapu, Gopal R., Ramesh, Srinivas I.
Format: Article
Language:English
Subjects:
aceites esenciales
almacenamiento
biodeterioration
biodeterioro
chemical composition
citronellol
composicion quimica
composition chimique
essential oil composition
essential oils
Geraniaceae
geraniol
geranium
huile essentielle
monoterpenoide
monoterpenoides
monoterpenoids
oil storage
pelargonium
Pelargonium sp
perdidas por almacenamiento
perte au stockage
Rose-scented geranium
stockage
storage
storage losses
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Summary:A comparison between properly stored and improperly stored (containing a small amount of water, half-filled in aluminum container and stored under ambient conditions) rose-scented geranium oil was made. It was found that the menthone, citronellol and citronellyl formate contents increased significantly under poor storage conditions, whereas linalool, geraniol, geranyl formate and 10-epi-gamma-eudesmol contents decreased under poor storage conditions over the period of 6-24 months. When the oil was stored correctly, the concentrations of linalool, citronellol, citronellyl formate and 10-epi-gamma-eudesmol did not vary markedly, while that of menthone increased slightly and those of geraniol and geranyl formate declined marginally. Correct storage conditions were defined as oil that has been dried over anhydrous sodium sulfate, filled up to the brim in an aluminum container or amber-colored bottle, tightly stoppered and stored under ambient conditions. No polymerization was observed in oils irrespective of storage conditions.
ISSN:1041-2905
2163-8152
DOI:10.1080/10412905.1997.9700729