Volatile Organic Constituents of Clinopodium gilliesii (Benth.) Kuntze: Analysis by HS-SPME and classic hydrodistillation

Method development by GC-ECD and HS-SPME-GC-MS for beer volatile analysis.

Two methods for the extraction, identification and quantification of the highest occurrence and lowest perception threshold off-flavours in fifteen different samples of Brazilian Pilsner beers were developed. For this purpose, headspace solid phase microextraction in combination with a gas chromatography coupled to a mass spectrometric detection (HS-SPME-GC-MS) as well as headspace extraction i...

A new prenylated naphthoquinoid from the aerial parts of Clinopodium chinense (Benth.) O. Kuntze.

A new prenylated naphthoquinoid, named (3R,4aR,10bR)-3,10-dihydroxy-2,2-dimethyl-3,4,4a,10b-tetrahydro-2H-naphtho[1,2-b]-pyran-5H-6-one (1), was isolated from the aerial parts of Clinopodium chinense (Benth.) O. Kuntze, together with six known compounds: apigenin (2), luteolin (3), neoeriocitrin (4), naringenin (5), narirutin (6), and didymin (7). Neoeriocitrin was isolated for the first time f...

Volatile Profiles of Honeys Using HS-SPME-GC-MS

Head Space Solid Phase Micro-Extraction (HS - SPME) of volatile organic compounds produced by Sporidiobolus salmonicolor (CBS 2636)

Recebido para publicação em 8/10/2008 Aceito para publicação em 8/7/2009 (003881) 1 Departamento de Engenharia de Alimentos, Universidade Regional Integrada do Alto Uruguai e das Missões – URI, CEP 99700-000, Erechim RS, Brasil, E-mail: [email protected] 2 Departamento de Física e Quimica, Universidade de Caxias do Sul – UCS 3 Departamento de Engenharia Química, Universidade Federal de Santa ...

Volatile Components of Hypericum Humifusum, Hypericum Perfoliatum and Hypericum Ericoides by Hs-spme-gc and Hs-spme-gcms Using Nano Scale Injection Techniques

ZYED ROUIS, AMEUR ELAISSI, NABIL BEN SALEM ABID, MOHAMED ALI LASSOUED, PIER LUIGI CIONI, GUIDO FLAMINI, MAHJOUB AOUNI Laboratory of Transmissible Diseases and Biological active Substances, Faculty of Pharmacy, Avenue Avicenne, 5000, Monastir, University of Monastir, Tunisia Pharmacognosy Laboratory, Faculty of Pharmacy, Avenue Avicenne, 5000, Monastir, University of Monastir, Tunisia Laboratory...