Beitrag zur Papierchromatographie von Alkoholen als Xanthogenate

Pohloudek-Fabini, R; Beyrich, Th.

doi:10.1007/bf00638253

Cited by 9 publications

(4 citation statements)

References 7 publications

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“…Total phenolic content was determined by the photometric method with 4-aminoantipyrin [17]. The absorbance was measured at 500 nm using the spectrophotometer, “UNICO UV/VIS”.…”

Section: Methodsmentioning

confidence: 99%

Melanins of Inonotus Obliquus: Bifidogenic and Antioxidant Properties

et al. 2019

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Extracts and melanins from Inonotus obliquus are widely used in medicine due to their high antioxidant properties. This study is dedicated to define the influence of the physicochemical and antioxidant properties of Inonotus obliquus melanins and their bifidogenic effects on Bifidobacterium bifidum 1 and Bifidobacterium animalis subsp. lactis. For this purpose, melanins precipitated from Inonotus obliquus aqueous extracts, obtained by a few methods, and separated melanin fractions by organic solvents were used. For the melanin physicochemical properties analysis spectrophotometry, electron paramagnetic resonance (EPR) spectroscopy and dynamic light scattering methods were applied. Melanins and their fractions difference in particle size and charge, antioxidant properties, and redox potential were revealed. It was shown that the redox potential, the size of melanin particles and the z-potential had maximum influence on bifidobacteria growth. The greatest activating effect on bifidobacteria was established by using melanin isolated from aqueous microwave extracts in concentrations of 10−13, 10−10, 10−5 g/cm3. The use of this melanin with antioxidant activity 0.67 ± 0.06 mg/g (expressed as ascorbic acid equivalent), and with redox potential −5.51 ± 2.22 mV as a prebiotic allowed the growth of Bifidobacterium bifidum 1 s to increase by 1.4 times in comparison with ascorbic acid by 24 h of cultivation.

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“…Total phenolic content was determined by the photometric method with 4-aminoantipyrin [17]. The absorbance was measured at 500 nm using the spectrophotometer, “UNICO UV/VIS”.…”

Section: Methodsmentioning

confidence: 99%

Melanins of Inonotus Obliquus: Bifidogenic and Antioxidant Properties

et al. 2019

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show abstract

“…The concentration of total organic was determined by oxidation with the excess of KMnO 4 in alkaline solutions in presence of Cu(II) as catalyst and keeping the obtained mixture in dark place for 15 h. The excess of KMnO 4 was retitrated with oxalic acid in acidic solutions [28]. Organic amount was expressed as O 2 consumption calculated by KMnO 4 used.…”

Section: Analysis Of Solutionsmentioning

confidence: 99%

Decontamination of solutions containing EDTA using metallic iron

Gylienė

Vengris

Stoncius

et al. 2008

Journal of Hazardous Materials

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“…The latter are suitable derivatives for paper chromatography (366,540,753,1298), but xanthates (365, 919), urethans (562), nitrates (520), tosylates (520), p-nitrophenylazobenzoates (124), and esters of azobenzene-4-carboxyIic acid (918) have also been used.…”

Section: Alcoholsmentioning

confidence: 99%

“…Conventional paper chromatography (187,237,348,384,818,1014) and centrifugally accelerated paper chromatography (26) have been applied, but reversed-phase chromatography (457,918) seems more appropriate for the nonpolar substances in this group.…”

Section: Alcoholsmentioning

confidence: 99%

Chromatography

Heftmanń¹

1962

Anal. Chem.

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Beitrag zur Papierchromatographie von Alkoholen als Xanthogenate

Cited by 9 publications

References 7 publications

Melanins of Inonotus Obliquus: Bifidogenic and Antioxidant Properties

Melanins of Inonotus Obliquus: Bifidogenic and Antioxidant Properties

Decontamination of solutions containing EDTA using metallic iron

Chromatography

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