کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
240405 466267 2015 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effects of Cyclohexane/Acetone Ratio on Bixin Extraction Yield by Accelerated Solvent Extraction Method
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Effects of Cyclohexane/Acetone Ratio on Bixin Extraction Yield by Accelerated Solvent Extraction Method
چکیده انگلیسی

In this study, accelerated solvent extraction (ASE) was applied to the quantitative extraction of bixin. The effects of cyclohexane/acetone ratios on bixin extraction yield were evaluated. Acetone was used in the process of pigment extraction and also played a major role in its analysis by UV-Vis spectrophotometry. Pure cis-bixin isolated by flash chromatography and characterized by Fourier Transform Infra Red spectrometry was used as a bixin standard for qualitative and quantitative analysis of annatto extracts which were obtained by accelerated solvents extraction. UV-Vis spectrophotometry analysis shows that the extraction using 100% cyclohexane gives the lowest bixin yield. This is different from the UV-Vis spectra generated with acetone extraction. The difference in percentage of acetone shows significant effects on bixin extraction yields. The use of cyclohexane:acetone (60%: 40%) solution at 50 °C for 5 min heating time results the highest total bixin extraction yield (48.00%) as compared to the other solvent ratios, and to the usual extraction methods using the same solvent (29.14%). High pressure liquid chromatography analysis shows that bixin extracted by this method has purity degree of 68.16%.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Procedia Chemistry - Volume 14, 2015, Pages 455-464