6533b861fe1ef96bd12c504d
RESEARCH PRODUCT
HPLC-DAD-ESI-MS2analytical profile of extracts obtained from purple sweet potato after green ultrasound-assisted extraction
Mohamed KoubaaZhenzhou ZhuJingren HeFrancisco J. BarbaShahin RoohinejadShuyi LiXinsun YangGiancarlo CravottoQingyan Guansubject
Spectrometry Mass Electrospray Ionization[SDV.BIO]Life Sciences [q-bio]/Biotechnology[SDV]Life Sciences [q-bio]Hplc dad esi msAnalytical ChemistryAnthocyaninschemistry.chemical_compound0404 agricultural biotechnologyChlorogenic acidHPLC-DAD-ESI-MS2Caffeic acid[SPI.GPROC]Engineering Sciences [physics]/Chemical and Process EngineeringUltrasonicsIpomoea batatasChromatography High Pressure LiquidChromatographyChromatographyEthanolPlant ExtractsSpectrometryExtraction (chemistry)Electrospray IonizationPolyphenolsProteins04 agricultural and veterinary sciencesGeneral MedicineQuinic acidMass040401 food sciencePlant TuberschemistryPolyphenolAnthocyaninUltrasound-assisted extractionHigh Pressure LiquidAnthocyanins; HPLC-DAD-ESI-MS2; Polyphenols; Proteins; Purple sweet potato; Ultrasound-assisted extraction; Anthocyanins; Chromatography High Pressure Liquid; Ipomoea batatas; Plant Extracts; Plant Tubers; Polyphenols; Spectrometry Mass Electrospray Ionization; Ultrasonics; Analytical Chemistry; Food SciencePurple sweet potato[SDV.AEN]Life Sciences [q-bio]/Food and NutritionFood Sciencedescription
International audience; Ultrasound pre-treatment (UAE) was applied to assist the extraction of valuable compounds (polyphenols (especially anthocyanins), and proteins) from purple sweet potato (PSP). Under optimum conditions (ultrasound time (40 min); supplementary hot extraction (80 °C) up to 120 min; pH: 2.5; ethanol concentration: 58%), the highest concentrations of polyphenols (3.877 mg/g), anthocyanins (0.293 mg/g), and proteins (0.753 mg/g) were found, with minimal specific energy consumption (8406 J/mg).Moreover, anthocyanin and non-anthocyanin polyphenols in PSP extract from optimized extraction temperature were identified using HPLC-DAD-ESI-MS2. The major identified anthocyanins were peonidin-3-caffeoyl-p-hydroxybenzoyl sophoroside-5-glucoside, peonidin-3-(6″-caffeoyl-6‴-feruloyl sophoroside)-5-glucoside, cyanidin-3-caffeoyl-p-hydroxybenzoyl sophoroside-5-glucoside, whereas the major identified non-anthocyanin molecules were quinic acid, chlorogenic acid, caffeic acid, and chlorogenic acid-3-glucose. The amount of the predominant anthocyanin and non-anthocyanin compounds from PSP extract obtained after UAE was higher than that extracted after conventional solvent extraction. The results obtained in this work demonstrated the efficiency of UAE for the recovery of anthocyanins from PSP.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2016-05-22 |