| Title: | In-tube extraction and GC-MS analysis of volatile components from wild and cultivated sea buckthorn (Hippophae rhamnoides L. ssp. Carpatica) berry varieties and juice |
| Author(s): | Socaci SA; Socaciu C; Tofana M; Rati IV; Pintea A; |
| Address: | "University of Agricultural Sciences and Veterinary Medicine, 3-5 Manastur St., 400372 Cluj-Napoca, Romania" |
| ISSN/ISBN: | 1099-1565 (Electronic) 0958-0344 (Linking) |
| Abstract: | "INTRODUCTION: The health benefits of sea buckthorn (Hippophae rhamnoides L.) are well documented due to its rich content in bioactive phytochemicals (pigments, phenolics and vitamins) as well as volatiles responsible for specific flavours and bacteriostatic action. The volatile compounds are good biomarkers of berry freshness, quality and authenticity. OBJECTIVE: To develop a fast and efficient GC-MS method including a minimal sample preparation technique (in-tube extraction, ITEX) for the discrimination of sea buckthorn varieties based on their chromatographic volatile fingerprint. MATERIAL AND METHODS: Twelve sea buckthorn varieties (wild and cultivated) were collected from forestry departments and experimental fields, respectively. The extraction of volatile compounds was performed using the ITEX technique whereas separation and identification was performed using a GC-MS QP-2010. Principal component analysis (PCA) was applied to discriminate the differences among sample composition. RESULTS: Using GC-MS analysis, from the headspace of sea buckthorn samples, 46 volatile compounds were separated with 43 being identified. The most abundant derivatives were ethyl esters of 2-methylbutanoic acid, 3-methylbutanoic acid, hexanoic acid, octanoic acid and butanoic acid, as well as 3-methylbutyl 3-methylbutanoate, 3-methylbutyl 2-methylbutanoate and benzoic acid ethyl ester (over 80% of all volatile compounds). Principal component analysis showed that the first two components explain 79% of data variance, demonstrating a good discrimination between samples. CONCLUSION: A reliable, fast and eco-friendly ITEX/GC-MS method was applied to fingerprint the volatile profile and to discriminate between wild and cultivated sea buckthorn berries originating from the Carpathians, with relevance to food science and technology" |
| Keywords: | Butyrates/analysis Caproates/analysis Chemical Fractionation/instrumentation/methods Esters/analysis Food Analysis/methods Fruit/chemistry Gas Chromatography-Mass Spectrometry/*methods Hippophae/*chemistry Principal Component Analysis Romania Volatile Org; |
| Notes: | "MedlineSocaci, Sonia A Socaciu, Carmen Tofana, Maria Rati, Ioan V Pintea, Adela eng Research Support, Non-U.S. Gov't England 2013/01/16 Phytochem Anal. 2013 Jul-Aug; 24(4):319-28. doi: 10.1002/pca.2413. Epub 2013 Jan 15" |
