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Changes in Citrus hystrix oil during autooxidation

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http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B8G60-4P40D65-2C&_user=6763742&_coverDate=12%2F31%2F1998&_rdoc=1&_fmt=high&_orig=search&_sort=d&_do canchor=&view=c&_searchStrId=1369792070&_rerunOrigin=scholar.google&_acct=C000070526&_versi on=1&_urlVersion=0&_userid=6763742&md5=39cf1e1ea59d7c4a9d33b751de997b9d

Changes in

Citrus hystrix

oil during autooxidation

F. Pudilb, H. Wijayaa, V. Jandab, J. Volfováb, H. Valentováb and J. Pokornýb

a

Department of Food Chemistry and Analysis, Prague Institute of Chemical Technology, Technická 5, CZ-166 28 Prague 6, Czech Republic

b

Faculty of Agricultural Technology, Bogor Agricultural University, P.O. Box 220, Bogor 16002, Indonesia

Available online 3 July 2007.

Abstract

The essential oil from Citrus hystrix is an interesting new raw material for the food and cosmetic industry. The composition of oil was analyzed by capillary gas chromatography. Changes due to autooxidation were studied at 40°C and 60°C using a headspace autosampler. Volatiles were identified by GC-MS after solid-phase microextraction (SPME) sampling using a Carbowax coated fiber. Changes in the sensory profile of autooxidized oil were determined under conditions specified by ISO standards, using unstructured graphical scales. Influences of a dihydropyridine antioxidant, Diludine, and of rosemary extracts on the course of oxidation of

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