Results 21 to 30 of about 24,391 (208)

Determination of N-nitrosamines and N-nitrosables substances in rubber teats and sothers by GC-TEA

open access: yesBrazilian Archives of Biology and Technology, 2006
N-Nitrosamines are receiving special attention because they present high mutagenic and carcinogenic potential. They can be found in several areas. In rubber, for example, they can be found in Nipples and Pacifiers.
Eleno Rodrigues Vieira   +2 more
doaj   +1 more source

Modeling the Impact of Excipients Selection on Nitrosamine Formation towards Risk Mitigation

open access: yesPharmaceutics, 2023
Risk control for nitrosamine impurities in drug products is currently a major challenge in the industry. Nitrosamines can form during drug product manufacturing and storage through the reaction of nitrites with amine-containing APIs or impurities.
Alberto Berardi   +2 more
doaj   +1 more source

Association between bacterial vaginosis and cervical intraepithelial neoplasia: systematic review and meta-analysis [PDF]

open access: yes, 2012
Objective: Bacterial vaginosis (BV), the most common vaginal disorder among women of reproductive age, has been suggested as co-factor in the development of cervical cancer.
De Sutter, Philippe   +6 more
core   +3 more sources

Nitrosamines: A review of formation pathways, precursors, control, and occurrence in drinking water [PDF]

open access: yesMATEC Web of Conferences, 2019
Nitrogenous disinfection by-products (N-DBPs) are emerging by-products that may be present in drinking water as by-products of water treatment plant (WTP) operations.
Meadows Maxwell   +3 more
doaj   +1 more source

Presence of Nitrites, Nitrates, Nitrosamines in the Eggs of Intensively raised Layers in Abeokuta, Nigeria [PDF]

open access: yes, 2016
In this study, the presence and concentrations of nitrosamines and their precursors (nitrates and nitrites) in raw table eggs obtained from four layer-farms in Abeokuta, were analysed.
Aduloju, O. S.   +4 more
core   +2 more sources

Bacterial reduction of N-oxides of tobacco- specific nitrosamines (TSNA) [PDF]

open access: yes, 1996
1 Contrary to established metabolic pattern, a recent investigation of NNK metabolism produced in rat urine higher levels of 4-(methylnitrosamino)-1-(3-pyridyl)-1- butanone (NNK) and 4-(methylnitrosamino)-1-(3-pyri dyl)-1-butanol (NNAL) than their N ...
Calmels S.   +4 more
core   +1 more source

Non-volatile N-nitrosamines in brewing industry. Part II. - Study of the Effect of UV Irradiation on the ATNC and Some Representatives of N-nitrosoaminoacids in Beer.

open access: yesKvasný průmysl, 2012
Contrary to volatile N-nitrosamines, about mechanism of decomposion of apparent total N-nitroso compounds and non-volatile nitrosamines e.g. N-nitrosoaminoacids in beer is known only a little.
Jiří ČULÍK   +3 more
doaj   +1 more source

Analysis of Tobacco-Specific Nitrosamines in the Common Smokeless Tobacco Afzal in Oman

open access: yesSultan Qaboos University Medical Journal, 2016
Objectives: There is a lack of awareness regarding the carcinogenicity of Afzal, an illegal smokeless tobacco product (STP) widely used among the Omani youth.
Nawal Al-Mukhaini   +3 more
doaj   +1 more source

Relevance of nitrate and nitrite in dry-cured ham and their effects on aroma development

open access: yesGrasas y Aceites, 2009
Potassium and sodium salts of nitrite (E 249 and E 250) and nitrate (E 251 and E 252) are authorised for use under certain levels in several foodstuffs such as non-heat-treated, cured and dried meat products, other cured meat products, canned meat ...
Fidel Toldrá   +2 more
doaj   +1 more source

Mechanistic Insight into the Degradation of Nitrosamines via Aqueous-Phase UV Photolysis or a UV-Based Advanced Oxidation Process: Quantum Mechanical Calculations

open access: yesMolecules, 2018
Nitrosamines are a group of carcinogenic chemicals that are present in aquatic environments that result from byproducts of industrial processes and disinfection products.
Daisuke Minakata, Erica Coscarelli
doaj   +1 more source

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