کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7601239 | 1492148 | 2014 | 30 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Determination of volatile components of saffron by optimised ultrasound-assisted extraction in tandem with dispersive liquid-liquid microextraction followed by gas chromatography-mass spectrometry
ترجمه فارسی عنوان
تعیین اجزای فرار زعفران با استفاده از استخراج با کمک اولتراسوند بهینه در کنار مایکاستریزاسیون مایع پراکنده و سپس طیف سنج جرمی کروماتوگرافی گاز
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کلمات کلیدی
زعفران، استخراج با کمک التراسونیک، مایکروفرکس مایع مایع اسپری، طیف سنجی جرم کروماتوگرافی گاز، طراحی کامپوزیت مرکزی،
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
In the present research, a combined extraction method of ultrasound-assisted extraction (UAE) in conjunction with dispersive liquid-liquid microextraction (DLLME) was applied to isolation and enrichment of saffron volatiles. The extracted components of the saffron were separated and determined by gas chromatography-mass spectrometry (GC-MS) technique. The mixture of methanol/acetonitrile was chosen for the extraction of the compounds and chloroform was used at the preconcentration stage. The important parameters, such as composition of extraction solvent, volume of preconcentration solvent, ultrasonic applying time, and salt concentration were optimised by using a half-fraction factorial central composite design (CCD). Under the optimal conditions, the linear dynamic ranges (LDRs) were 10-10,000 mg Lâ1. The determination coefficients (R2) were from 0.9990 to 0.9997. The limits of detection (LODs) and limits of quantification (LOQs) for the extracted compounds were 6-123 mg Lâ1 and 20-406 mg Lâ1, respectively. The relative standard deviations (RSDs) were 2.48-9.82% (n = 3). The enhancement factors (EFs) were 3.6-41.3.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Chemistry - Volume 143, 15 January 2014, Pages 499-505
Journal: Food Chemistry - Volume 143, 15 January 2014, Pages 499-505
نویسندگان
Hassan Sereshti, Reza Heidari, Soheila Samadi,