| Title: | Volatiles from Cinnamomum cassia buds |
| Author(s): | Sandner D; Krings U; Berger RG; |
| Address: | "Institut fur Lebensmittelchemie, Leibniz Universitat Hannover, Callinstrasse 5, 30167 Hannover, Germany" |
| ISSN/ISBN: | 0939-5075 (Print) 0341-0382 (Linking) |
| Abstract: | "While the chemical composition of leaf and stem bark essential oils of the Chinese cinnamon, Cinnamomum cassia (L.) J. Presl, has been well investigated, little is known about the volatilom of its buds, which appeared recently on German markets. Soxhlet extracts of the commercial samples were prepared, fractionated using silica gel and characterised by gas chromatography-flame ionisation detector (GC-FID) for semi-quantification, by gas chromatography-mass spectrometry (GC-MS) for identification and by GC-FID/olfactometry for sensory evaluation. Cinnamaldehyde was the most abundant compound with concentrations up to 40 mg/g sample. In total, 36 compounds were identified and 30 were semi-quantified. The extracts contained mostly phenylpropanoids, mono- and sesquiterpene hydrocarbons and oxygenated derivatives. Because of the high abundance of cinnamaldehyde, the aldehyde fraction was removed from the extracts by adding hydrogen sulphite to improve both the detection of trace compounds and column chromatography. The aldehyde fraction was analysed by GC-MS separately. The highest flavour dilution factor of 316 was calculated for cinnamaldehyde. Other main sensory contributors were 2-phenylethanol and cinnamyl alcohol. This report provides the first GC-olfactometry data of a plant part of a Cinnamomum species. The strongly lignified C. cassia buds combine a high abundance of cinnamaldehyde with comparably low coumarin concentrations (<0.48 mg/g), and provide a large cinnamaldehyde depot for slow release applications" |
| Keywords: | Acrolein/analogs & derivatives/analysis Cinnamates/analysis/chemistry Cinnamomum aromaticum/*chemistry Flowers/chemistry Plant Extracts/*chemistry Sesquiterpenes/analysis/chemistry Volatile Organic Compounds/*chemistry Cinnamomum cassia buds GC-olfactomet; |
| Notes: | "MedlineSandner, Daniel Krings, Ulrich Berger, Ralf G eng Germany 2017/11/18 Z Naturforsch C J Biosci. 2018 Jan 26; 73(1-2):67-75. doi: 10.1515/znc-2017-0087" |
