Results 21 to 30 of about 12,056 (230)

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

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

Non-volatile N-nitrosamines in brewing industry. Part 1. - Arrising and methods of estimation.

open access: yesKvasný průmysl, 2012
Contrary to volatile N-nitrosamines, about representatives and mechanism of arrising of non-volatile nitrosamines in brewing industry is known only a little.
Jiří ČULÍK   +3 more
doaj   +1 more source

OCCURRENCE OF VOLATILE NITROSAMINES IN EDIBLE OILS [PDF]

open access: yesAssiut Veterinary Medical Journal, 1989
A limited survey of edible oils was undertaken to determine the presence of volatile N-nitrosamines, a class of compounds carcinogenic to a broad range of animal species. Nitrosamines were detected and quantitated by a gas liquid chromatograph interfaced
M.R.A. RASHWAN   +2 more
doaj   +1 more source

Determination of Seven N-Nitrosamines in Ready-to-Eat Fish Products by GC-MS/MS with Alkali-Treatment Coupled Salt-Assisted Dispersive Liquid-Liquid Microextraction(碱处理结合盐辅助分散液液微萃取GC-MS/MS检测即食鱼制品中7种N-亚硝胺) [PDF]

open access: yesShipin kexue jishu xuebao, 2021
To improve the detection efficiency, a new method for the determination of 7 N-nitrosamines in ready-to-eat fish products was developed by GC-MS/MS with alkali treatment coupled salt-assisted dispersive liquid-liquid microextraction (SADLLME). The sample
HOU Tongyao(侯彤瑶)   +5 more
doaj   +1 more source

N-nitrosamines in 21th Century

open access: yesKvasný průmysl, 2016
Carcinogenic nitrogen compounds, N-nitrosamines, were first identified in beer and malt during the 70’s of twentieth century. Their proven occurrence in beer, in context with their significant health risk, led to the development of new technological ...
Tomáš Vrzal, Jana Olšovská
doaj   +1 more source

Nitrates and N-Nitrosamines in Cheese

open access: yesJournal of Food Protection, 1979
Use of nitrate in the manufacture of certain cheeses is sometimes questioned because of its potential involvement in formation of N-nitrosamines. Unlike cured meats, there was not much information available, until recently, regarding the presence of N-nitrosamines in cheese and other dairy products. This paper briefly reviews the mechanism of formation
J I, Gray, D M, Irvine, Y, Kakuda
openaire   +2 more sources

Effects of Spice Essential Oils on Quality and Safety of Catfish Surimi Dry Sausages

open access: yesShipin gongye ke-ji, 2023
In order to improve the quality and safety of catfish surimi dry sausages, the essential oils of clove, star anise, cinnamon, perilla and oregano were added into the pickled catfish surimi, and then made into dry sausages after being filled and air-dried.
Yuting ZHANG   +3 more
doaj   +1 more source

Determination of N-Nitrosamines by Gas Chromatography Coupled to Quadrupole–Time-of-Flight Mass Spectrometry in Water Samples

open access: yesSeparations, 2020
An analytical method based on high-resolution quadrupole−time-of-flight (QToF) mass spectrometry has been developed as an alternative to the classical method, using a low-resolution ion trap (IT) analyzer to reduce interferences in N-nitrosamines ...
Benigno José Sieira   +4 more
doaj   +1 more source

A genome-wide portrait of pervasive drug contaminants

open access: yesScientific Reports, 2021
Using a validated yeast chemogenomic platform, we characterized the genome-wide effects of several pharmaceutical contaminants, including three N-nitrosamines (NDMA, NDEA and NMBA), two related compounds (DMF and 4NQO) and several of their metabolites. A
Joseph Uche Ogbede   +2 more
doaj   +1 more source

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