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HPLC-DAD-ESI-MS2analytical profile of extracts obtained from purple sweet potato after green ultrasound-assisted extraction

2016

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 we…

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 Science
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