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A simple and robust quantitative analysis of retinol and retinyl palmitate using a liquid chromatographic isocratic method
10.1016/j.jfda.2017.07.002 2017-07-25 Vitamin A is a vital nutritional substances that regulates biological activities including development, but is also associated with disease onset. The extent of vitamin A intake influences the retinoid content in the liver, the most important organ for the st... |
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An investigation of the olive phenols activity as a natural medicine
10.1016/j.jfda.2017.07.003 2017-07-25 The natural antioxidants of olive oil have phenolic structure and their activities are related to the formation of stable derivatives. In this study, the single components of the phenolic fraction of olive oil (1,4-hydroquinone, Semiquinone and 1,4-benzoquino... |
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Cytotoxic protobassic acid saponins from the kernels of Palaquium formosanum
10.1016/j.jfda.2017.06.004 2017-07-11 Bioassay guided fractionation and separation of the EtOH extract of the kernels of Palaquium formosanum against PC-3 cells via Sephadex LH-20 and reverse phase C-18 columns led to the isolation of 13 protobassic saponins. One of these saponins is new and was ... |
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Employing natural reagents from turmeric and lime for acetic acid determination in vinegar sample
10.1016/j.jfda.2017.06.007 2017-07-08 A simple, rapid and environmentally friendly sequential injection analysis system employing natural extract reagents was developed for the determination of acetic acid following an acid–base reaction in the presence of an indicator. Powdered lime and turmeric... |
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Gallic acid inhibits bladder cancer cell proliferation and migration via regulating fatty acid synthase (FAS)
10.1016/j.jfda.2017.06.006 2017-07-08 Bladder cancer is known as the world's ninth most prevalent cancer in 2012. New cytotoxic drugs have created considerable progress in the treatment. Gallic acid (GA) has been shown to inhibit carcinogenesis in animal models and various cancer cell lines. The ... |
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Analysis of veterinary drug residue monitoring results for commercial livestock products in Taiwan between 2011 and 2015
10.1016/j.jfda.2017.06.008 2017-07-08 Antibiotics have been widely used in the treatment of livestock diseases. However, the emergence of issues related to drug resistance prompted governments to enact a series of laws regulating the use of antibiotics in livestock. Following control of the probl... |
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Stability-indicating spectrofluorimetric method with enhanced sensitivity for determination of vancomycin hydrochloride in pharmaceuticals and spiked human plasma: Application to degradation kinetics
10.1016/j.jfda.2017.06.005 2017-07-08 Based on investigating the relative fluorescence intensity of vancomycin hydrochloride (VCM) in methanol, a simple, highly sensitive, time-saving and specific spectrofluorimetric method was developed and validated. VCM fluorescence was measured at 335 nm when... |
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Detection of lithospermate B in rat plasma at the nanogram level by LC/MS in multi reaction monitoring mode
10.1016/j.jfda.2017.06.003 2017-07-08 Low bioavailability and high binding affinity to plasma proteins led to the difficulty for the quantitative detection of lithospermate B (LSB) in plasma. This study aimed to develop a protocol for detecting LSB in plasma. A method was employed to quantitative... |
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Use of UHPLC-TripleQ with synthetic standards to profile anti-inflammatory hydroxycinnamic acid amides in root barks and leaves of Lycium barbarum
10.1016/j.jfda.2017.06.002 2017-07-08 Hydroxycinnamic acid amides (HCAA) are the secondary metabolites ubiquitously exist in flowering plants, formed by condensation between hydroxycinnamates and mono or polyamines. HCAA species not only serve multiple functions in plant growth and development, b... |
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Thyme essential oils from Spain: Aromatic profile ascertained by GC–MS, and their antioxidant, anti-lipoxygenase and antimicrobial activities
10.1016/j.jfda.2017.05.004 2017-06-15 Six samples of red thyme (Thymus zygis) and two samples of winter thyme (Thymus hyemalis) essential oils (EOs) were obtained from plants cultivated in south-eastern Spain and extracted by steam distillation. Analysis by gas chromatography coupled with mass sp... |