期刊
JOURNAL OF CHROMATOGRAPHY A
卷 1216, 期 33, 页码 6088-6097出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.chroma.2009.06.067
关键词
Ultrasonic solvent extraction; Response surface modeling; Saffron; Gas chromatography-mass spectrometry; Central composite design; Factorial design
The volatile components of Iranian saffron were extracted using ultrasonic solvent extraction (USE) technique and then were separated and detected by gas chromatography-mass spectrometry (CC-MS). Variables affecting the extraction procedure were screened by using a 2(5-1) fractional factorial design and among them; sample amount, solvent volume, solvent ratio and extraction time were optimized by applying a rotatable central composite design (CCD). The optimum values of factors were: 2.38 g sample, 29.04 mL solvent, 69.23% MeOH solvent ratio and 71.8 min for the extraction time. Forty constituents were identified for Iranian saffron by CC-MS representing 90% of the total peak area. The major components were 2,6,6-trimethyl-1,3-cyclohexadiene-1-carboxaldehyde, namely safranal (26.29%), bicyclo[3,2,0]hept-2-ene-,4-ethoxy-,endo (5.69%), linoleic acid (4.77%), 4-hydroxy-2,6,6-trimethyl-1-cyclohexene-1-carboxaldehyde, namely HTCC (4.44%), and nonadecanol (3.32%). Some new compounds were identified for the first time in saffron. In addition, the results of this Study were compared with those of Greek saffron. (C) 2009 Elsevier B.V. All rights reserved.
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