Determination of selected water-soluble vitamins (thiamine, riboflavin, nicotinamide and pyridoxine) from a food matrix using hydrophilic interaction liquid chromatography coupled with mass spectroscopy

Porter, Kate; Lodge, John K.

doi:10.1016/j.jchromb.2021.122541

Cited by 24 publications

(12 citation statements)

References 49 publications

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“…For the working standard, an aliquot of stock was defrosted daily and diluted in mobile phase B; 10 mM ammonium acetate (pH 5) in 95:5 (V:V) acetonitrile: 18.2 M deionized water. The working standard and multivitamin standard were diluted within a 5–400 ng/ml calibration range (Porter & Lodge, 2021).…”

Section: Methodsmentioning

confidence: 99%

Quantification of phytochemicals, and compounds’ identification in functional tea from Ficus capensis and Justicia secunda

Uchegbu

Fasuan²,

Onuoha

2023

Journal of Food Science

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This work evaluated the development of beverage from Ficus capensis and Justicia secunda leaves composite using response surface methodology three-level factorial design gas chromatography-mass spectrophotometry. Fresh leaves of F. capensis and J. secunda were processed into tea. The results indicated the optimal extracts blends of 48% of F. capensis and 52% of J. secunda. The iron content was 489.11 mg/g; flavonoid content, 83.64 mg QE/100 g; vitamin C content, 1003.14 mg/100 g; and pyridoxine content, 357.31 mg/100 g. Alkaloid profile showed tetrahydrorhombiofoline (35%), columbamine (20.10%), laudanosine (11.50%), salsoline (8.22%), methylcobalamin (7.98%), quinine (5.89%), and quinidine (3.21%). Other phytocompounds with bioactive characteristics include 11-octadecenoic acid, methyl ester (32.43 g/100 g); hexadecanoic acid, methyl ester (16.69 g/100 g); 9,12-octadecadienoic acid (Z,Z)-, methyl ester (12.81 g/100 g); (E)-9-octadecenoic acid, ethyl ester (9.71 g/100 g); hexadecanoic acid, ethyl ester (5.86 g/100 g); methyl stearate (4.62); linoleic acid, ethyl ester (4.62 g/100 g), octadecanoic acid, ethyl ester (1.84 g/100 g); and octasiloxane,

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Section: Methodsmentioning

confidence: 99%

Quantification of phytochemicals, and compounds’ identification in functional tea from Ficus capensis and Justicia secunda

Uchegbu

Fasuan²,

Onuoha

2023

Journal of Food Science

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“…13 C{ 1 H} NMR (126 MHz, chloroform-d) δ 168.9, 162.2, 160.6 (C−F, 1J C−F = 245.7 Hz), 145.9 (C−F, 3J C−F = 3.8 Hz), 136.6, 130.3, 123.1 (C−F, 3J C−F = 8.8 Hz), 119.5, 117.9, 116.4 (C−F, 2J C−F = 24.0 Hz), 111.6. 19 F NMR (471 MHz, chloroform-d) δ −116.07.…”

Section: -Fluorophenyl 2-hydroxybenzoate (B17) 5amentioning

confidence: 99%

“…By the way, flavins like vitamin B2 and selected derivatives were also water-compatible and watersoluble to some extent. 19 Therefore, this reminded us that H 2 O could be an alternative solvent for this flavin-promoted Smiles rearrangement so as to better meet the requirements of sustainable chemistry.…”

Section: ■ Introductionmentioning

confidence: 99%

Radical-Smiles Rearrangement by a Vitamin B2-Derived Photocatalyst in Water

Shen,

Li,

Ren

et al. 2024

J. Org. Chem.

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Herein, we report a catalytic radical-Smiles rearrangement system of arene migration from ether to carboxylic acid with riboflavin tetraacetate (RFT), a readily available ester of natural vitamin B2, as the photocatalyst and water as a green solvent, being free of external oxidant, base, metal, inert gas protection, and lengthy reaction time. Not only the known substituted 2phenyloxybenzoic acids substrates but also a group of naphthalene-and heterocycle-based analogues was converted to the corresponding aryl salicylates for the first time. Mechanistic studies, especially a couple of kinetic isotope effect (KIE) experiments, suggested a sequential electron transfer-proton transfer processes enabled by the bifunctional flavin photocatalyst.

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“…The advantages of HILIC are the high tolerance to salts, the excellent reproducibility of retention times, the even peak shape, and the stability over a wide pH range, allowing the development of low-pH and high-pH methods [75]. While the low-pH methods are well suited for amino acids, vitamins, and polyamines, the high-pH protocols are preferable for carbohydrates, carbohydrate phosphates, organic acids, and NTs [76][77][78]. Additionally, nucleotide sugars can be analyzed with HILIC [48,79].…”

Section: Chromatographic Separationmentioning

confidence: 99%

Analysis of Nucleosides and Nucleotides in Plants: An Update on Sample Preparation and LC–MS Techniques

Straube

Witte

Herde

2021

Cells

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Nucleotides fulfill many essential functions in plants. Compared to non-plant systems, these hydrophilic metabolites have not been adequately investigated in plants, especially the less abundant nucleotide species such as deoxyribonucleotides and modified or damaged nucleotides. Until recently, this was mainly due to a lack of adequate methods for in-depth analysis of nucleotides and nucleosides in plants. In this review, we focus on the current state-of-the-art of nucleotide analysis in plants with liquid chromatography coupled to mass spectrometry and describe recent major advances. Tissue disruption, quenching, liquid–liquid and solid-phase extraction, chromatographic strategies, and peculiarities of nucleotides and nucleosides in mass spectrometry are covered. We describe how the different steps of the analytical workflow influence each other, highlight the specific challenges of nucleotide analysis, and outline promising future developments. The metabolite matrix of plants is particularly complex. Therefore, it is likely that nucleotide analysis methods that work for plants can be applied to other organisms as well. Although this review focuses on plants, we also discuss advances in nucleotide analysis from non-plant systems to provide an overview of the analytical techniques available for this challenging class of metabolites.

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Determination of selected water-soluble vitamins (thiamine, riboflavin, nicotinamide and pyridoxine) from a food matrix using hydrophilic interaction liquid chromatography coupled with mass spectroscopy

Cited by 24 publications

References 49 publications

Quantification of phytochemicals, and compounds’ identification in functional tea from Ficus capensis and Justicia secunda

Quantification of phytochemicals, and compounds’ identification in functional tea from Ficus capensis and Justicia secunda

Radical-Smiles Rearrangement by a Vitamin B2-Derived Photocatalyst in Water

Analysis of Nucleosides and Nucleotides in Plants: An Update on Sample Preparation and LC–MS Techniques

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