Search results for "Ultra-high-performance liquid chromatography"

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Quantitative evaluation of the phenolic profile in fruits of six avocado (Persea americana) cultivars by ultra-high-performance liquid chromatography…

2016

The phenolic profiles of six varieties of avocado (Persea americana) grown in Sicily were investigated. The ultra-high-performance liquid chromatography-heated electrospray-mass spectrometry method was developed to determine qualitative and quantitative changes in fruits at two different ripening stage. Nineteen individual phenolic compounds were detected in avocado pulp extracts. Gallic acid, sinapinic acid, vanillin, p-coumaric acid, and gentisic acid were present only in ripe fruits. On the contrary, epicatechin decreased with fruit ripening, whereas protocatechuic acid, 4-hydroxybenzoic acid, chlorogenic acid, and benzoic acid were relatively stable or exhibited erratic changes with fru…

Accurate mass; Fruit ripening; High-resolution mass spectrometry; LDA; Persea americana; Phenolic compounds; Ultra-high-performance liquid chromatography; Food SciencePerseaHigh-resolution mass spectrometrySettore CHIM/10 - Chimica Degli AlimentiLDAPhenolic compoundSinapinic acid01 natural sciencesProtocatechuic acidchemistry.chemical_compound0404 agricultural biotechnologyChlorogenic acidBotanySettore CHIM/01 - Chimica AnaliticaGallic acidFood scienceGentisic acidAccurate mabiologyVanillin010401 analytical chemistryfood and beveragesRipening04 agricultural and veterinary sciencesbiology.organism_classificationFruit ripening040401 food scienceSettore CHIM/08 - Chimica Farmaceutica0104 chemical sciencesSettore AGR/03 - Arboricoltura Generale E Coltivazioni ArboreechemistryPersea americanaUltra-high-performance liquid chromatographyPhenolic compounds; Persea americana; Accurate mass; Ultra-high-performance liquid chromatography; High-resolution mass spectrometry; LDA; Fruit ripeningFood Science
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Target analysis and retrospective screening of mycotoxins and pharmacologically active substances in milk using an ultra-high-performance liquid chro…

2020

Milk is a nutritious food suitable for infants and adults, and it plays an important role in the human diet. However, it may also be a vehicle for food contaminants. In this report, we developed a method using ultra-high-performance liquid chromatography coupled with high-resolution mass spectrometry (UHPLC-Q-Exactive Orbitrap HRMS; Thermo Fisher Scientific, Waltham, MA) for simultaneous identification of target pharmacologically active substances and mycotoxins in milk. We also used the Q-Orbitrap operating in full scan mode to identify other possible drugs and microbial metabolites that occurred in samples. Fifty-six commercially available milk samples from the Italian market were analyze…

AnalyteQuEChERSTarget analysisFood ContaminationOrbitrapMass spectrometryQuechersretrospective analysiMass Spectrometrylaw.inventionmycotoxin03 medical and health scienceschemistry.chemical_compoundlawGeneticsAnimalsMycotoxinChromatography High Pressure Liquid030304 developmental biologyRetrospective Studies0303 health sciencesChromatographyultra-high-performance liquid chromatography/high-resolution mass spectrometry (UHPLC-Q-Orbitrap HRMS)pharmacologically active substanceChemistry0402 animal and dairy science04 agricultural and veterinary sciencesContaminationMycotoxins040201 dairy & animal scienceMilkItalyAnimal Science and ZoologyFood ScienceFood contaminantJournal of dairy science
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