نتایج جستجو برای: contamination limit

تعداد نتایج: 240891  

2013
Rached Ismaïl Florence Aviat Valérie Michel Isabelle Le Bayon Perrine Gay-Perret Magdalena Kutnik Michel Fédérighi

Various types of surfaces are used today in the food industry, such as plastic, stainless steel, glass, and wood. These surfaces are subject to contamination by microorganisms responsible for the cross-contamination of food by contact with working surfaces. The HACCP-based processes are now widely used for the control of microbial hazards to prevent food safety issues. This preventive approach ...

2008
Liang Ming Xia Xi Tingting Chen Jie Liu

We have developed a simple, convenient and inexpensive voltammetric method for determining trace Sudan I contamination in chili powder, based on the catalyzed electrochemical reduction of Sudan I at the carbon nanotube modified electrode. Under optimized conditions, the method exhibited acceptable analytical performance in terms of linearity (over the concentration range 6.0×10-7 to 7.5×10-5 M,...

2015
Jin-ju Zhang Jing-jing Tian Shuang-shi Wei Sheng-bao Duan Hong-mei Wang Ye-zhou Chen Shao-hua Ding Chun Zhang Qing-lin Meng Yong Li Roman G. Gerlach

Real-time polymerase chain reaction (RT-PCR) enables effective and sensitive screening for infectious risk in the field of blood safety. However, when using RT-PCR to detect bacterial contamination, several intractable points must be considered, one of which is the lack of appropriate quality control. In this study, we developed a simplified RT-PCR assay in which the same primer set and two dis...

Journal: :Jurnal Peternakan Integratif 2023

Contamination of meat is common often occurs which endangers the health consumers. This study aims to determine presence bacterial contamination Escherichia coli and Salmonella sp. on broiler at slaughterhouses traditional markets in Medan City. used a survey method with purposive sampling technique 60 samples (30 from 30 markets). There were 3 (slaughterhouses Johor, setia budi, padang bulan) ...

2014
Doreen Amponsah

Analysis of milk samples indicated their contamination by some heavy metals residues, exhibiting a wide array of hazardous impacts on human health. It can be observed that levels of mercury in milk is higher, followed by levels of lead, Arsenic, and cadmium. The statistical analysis of obtained data revealed that all examined milk samples having Pb, Cd, As and Hg levels above the recommended pe...

Journal: :مجله انسان، محیط زیست و ارتقاء سلامت 0
tooran yarahmadi zanjan, parvin eatesami bolv., school of health and paramedical hassan hassanzadaza zanjan, parvin eatesami bolv., school of health and paramedical sajad chamandoost zanjan, parvin eatesami bolv., school of health and paramedical majid aminzarer zanjan, parvin eatesami bolv., school of health and paramedical

background; foods have been many changes from production to tables and continuous control is necessary to maintain food safety and supply foods with good quality. the aim of this study was to evaluate the quality of some foods with high consumption in zanjan city during the 5 years from 2009 to 2013. methods; in a case-control descriptive study with an annually control program during 5 years fr...

Journal: :Food additives & contaminants. Part A, Chemistry, analysis, control, exposure & risk assessment 2008
J W Dorner

Contamination of peanuts with mycotoxins, particularly aflatoxins, is a worldwide problem that affects both food safety and agricultural economies. Most countries have adopted regulations that limit the quantity of aflatoxins in food and feed to 20 microg kg(-1) or less; however, environmental conditions in most of the world where peanuts are produced and stored often make it difficult or impos...

2013
Paul Lorcheim

INTRODUCTION Surgical barrier facilities are by necessity highly controlled to maintain sterility. Any breach of containment can introduce contaminants which could potentially find their way into the animals being operated on. As such, personnel undergo stringent gowning and entry procedures, quarantines if they visit other animal facilities and various other operating procedures to minimise th...

2007
Boris A. Popov

The NOMAD experiment has been searching for νμ ↔ ντ oscillations by looking for the appearance of τ − in events from the CERN-SPS neutrino beam. With some improvements in the analysis techniques with respect to the previous published results and including data from 1998 run, no evidence for oscillations is found, resulting in an updated limit on the oscillation probability of P (νμ ↔ ντ ) < 0.5...

2016
Dipankar Thakuria Buddharatna. J. Godboley

The problems related to groundwater contamination by iron and fluoride is common and serious all over the world, especially in developing countries. Excess amounts of these contaminants have created health problems. For this reason, the maximum permissible limit for iron given by WHO and BIS is 1 mg/l, however 0.3 mg/l is the desirable limit. For fluoride, the desirable limit as per WHO is 0.5-...

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