On the Genuineness of Citrus Essential Oils. Part XXXV. Detection of Added Reconstituted Mandarin Oil in Genuine Cold-Pressed Mandarin Essential Oil by High Resolution Gas Chromatography with Chiral Capillary Columns
作者:
Giovanni Dugo,
IldefonsaStagno d'Alcontres,
Antonella Cotroneo,
Paola Dugo,
期刊:
Journal of Essential Oil Research
(Taylor Available online 1992)
卷期:
Volume 4,
issue 6
页码: 589-594
ISSN:1041-2905
年代: 1992
DOI:10.1080/10412905.1992.9698140
出版商: Taylor & Francis Group
关键词: Cold-pressed mandarin essential oil;adulteration;reconstituted mandarin oil;limonene;enantioselective GC
数据来源: Taylor
摘要:
A rapid method to detect the addition of reconstituted mandarin oils to natural mandarin essential oils is suggested. The method is based on the ratio of the two enantiomers of limonene determined by GC using an on-line coupling of non-chiral and chiral capillary columns. The ratio of (−)-limonene and (+)-limonene in the genuine mandarin oils was 2.2 to 97.8, while in reconstituted oils the same ratio was 13.4 to 86.6. Addition of reconstituted oils increases the ratio of (--) to (+)-limonene in genuine oils enabling the detection of additions of even 5% of reconstituted oils to genuine mandarin oils.
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