Impact of supercritical CO2 and traditional solvent extraction systems on the extractability of alkylresorcinols, phenolic profile and their antioxidant activity in wheat bran
| Autor: | Farah Hosseinian, Aynur Gunenc, Abdulrahman Hashem, Ibrahim Farah, Mehri HadiNezhad |
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| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Alkylresorcinols
Nutrition and Dietetics Antioxidant Chromatography Bran Phenolic fractionation Extraction solvents Nutrition. Foods and food supply medicine.medical_treatment Extraction (chemistry) food and beverages Medicine (miscellaneous) High-performance liquid chromatography Ferulic acid Solvent chemistry.chemical_compound Supercritical carbon dioxide chemistry Acetone medicine ORAC TX341-641 Alkaline hydrolysis Food Science |
| Zdroj: | Journal of Functional Foods, Vol 12, Iss, Pp 109-119 (2015) |
| ISSN: | 1756-4646 |
| Popis: | SC-CO2 and traditional solvent methods were used to extract alkylresorcinols (ARs) in wheat bran (WB) cultivars. WB soluble free, soluble conjugated and bound phenolics were separated by alkaline hydrolysis. Also, the effects of extraction solvents on antioxidant activity were investigated by using three different solvents. The HPLC results showed that the AR content was higher in acetone extracts compared to the SC-CO2. Using ethanol as a co-solvent yielded higher ARs, especially in collector-2 for hard red WB (HRWB) (57.8 mg/100g) and soft red WB (SRWB) (37.8 mg/100g). Ten phenolic acids and six flavonoids were detected in phenolic fractions which ferulic acid was the predominant and mostly found in bound fractions. Two-way ANOVA showed that cultivar, solvent and their interactions had significantly (P |
| Databáze: | OpenAIRE |
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