Results 211 to 220 of about 12,548 (263)

Characterization and monitoring of changes during lactation in the profile of multiple bioactive compounds of milk from grazing mares. [PDF]

J Sci Food Agric
Blanco-Doval A, Barron LJR, Bustamante MÁ, Aldai N.   +3 more
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Rate Studies on the Hydrolysis of Niacinamide [PDF]

Journal of Pharmaceutical Sciences, 1962
Abstract The apparent first-order rate constant corresponding to the hydrolysis of niacinamide has been determined over the pH range 0.4–11.3 in purely aqueous solutions at 89.4. Although the pH-rate profile shows a minimum between pH 4 and 6, the reaction velocity is relatively slow over the usual pharmaceutical range. Surprisingly, the second-order
Takeru Higuchi, Per Finholt
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Cosmeceutical Aptitudes of Niacinamide: A Review

Recent Advances in Anti-Infective Drug Discovery, 2021
Background: The prevalence and scope of dermatological illness differ from region to region. Based upon type and severity, the conditions may vary from superficial to deep systemic skin infections. Niacinamide, an amide analog of vitamin B3 which was conventionally utilized as a food supplement, is now explored for the management of skin disorders ...
Piyush Madaan, Priyanshi Sikka, Deepinder Singh Malik   +2 more
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Determination of Niacinamide in Pharmaceutical Preparations

Journal of Pharmaceutical Sciences, 1969
A method for the isolation of niacinamide from multi-component pharmaceutical preparations by partition chromatography between a diatomaceous earth-water column and chloroform followed by measurement of UV absorbance at 262 mμ is proposed. A second method using the color produced by the niacinamide in the column eluate with bromothymol blue in ...
Charles T. Kenner, Marshall T Jeffus
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Niacinamide in canned tomato sauce

Bulletin of Environmental Contamination and Toxicology, 1984
Au cours d'une recherche de pesticides dans de la sauce tomate en boite, mise en evidence d'une reponse analytique inconnue d'un compose contenant de l'azote. Identification par chromatographie en phase gazeuse-spectrometrie de masse de la niacinamide (amide de l'acide pyridine-3 carboxylique, ou vitamine B3) a la dose de 3-4 ...
Emil G. Siegmund, Gregory M. Doose, Thomas Cairns   +2 more
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Niacin and Niacinamide Biosynthesis in Insects

Science, 1952
It has recently been shown that niacin can be formned from tryptophan in mammals (1), but cannot be formed in the larval stage of insects, such as 'The authors are indebted to K. Nakamura, M. Takanami, and S. Higashi. This work was supported in part by a grant from the Science Research Fund No. 4009, Ministry of Education.
Masaru Kato, Yasuji Hamamura
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Combination of sodium hyaluronate, Withania somnifera extract and niacinamide improves hydration and skin tone – A clinical study

Current Cosmetic Science, 2023
Multiple moisturizing solutions with sodium hyaluronate, Withania sominifera, and niacinamide are commercially popular. Detailed clinical studies portraying their activity are not available.
R. Rastogi, Galwin D Lima, Anjali Gholap
semanticscholar   +1 more source

Polarographic assay of niacinamide in pharmaceutical preparations [PDF]

Journal of Pharmaceutical Sciences, 1969
A rapid polarographic determination of niacinamide pharmaceutical preparations had been developed and is compared with the Konig colorimetric assay using barbituric acid. The niacinamide is extracted from the sample using a combination column and liquid-liquid partition chromatography. The extracted niacinamide is determined in a supporting electrolyte
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The effect of niacinamide on osteoarthritis: A pilot study

Inflammation Research, 1996
To evaluate the effect of niacinamide, on selected parameters of osteoarthritis using a double-blind, placebo controlled study design.Seventy two patients with osteoarthritis were randomized for treatment with niacinamide or an identical placebo for 12 weeks.
C P Rapoza, W F Blair, W B Jonas
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