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18 Newest Publications about the topic fluorescence detectors


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Evaluation of PAHs content in different types of olive and olive pomace oils produced in Turkey and Spain

01-Jun-2013 | Pelin Günç Ergönül, Sebastián Sánchez, European Journal of Lipid Science and Technology, 2013

Characterization of fifteen polycyclic aromatic hydrocarbons (PAHs) in extra virgin, virgin, second centrifugation, lampante, refined, crude olive pomace and refined olive pomace oils was carried out in 24 different types of olive oils and 7 different types of pomace oils produced in Turkey and ...


Vitamin C in Blanched Vegetables: Effect of Chlorine Dioxide and Peracetic Acid Used as Disinfectants during Cooling

07-Mar-2013 | Etienne Jooken, Annelies Smedts, Evelyn Desmidt, Annick Monballiu, Ruis Amery, Boudewijn Meesschaert, Journal of Food Process Engineering, 2013

Abstract The production of frozen vegetables generally includes a heat treatment (a blanching) to denaturate cellular enzymes. The water used for cooling after this blanching is disinfected to prevent microbial growth and to ensure a microbiologically qualitative end product. In this study, ...


Modeling Growth Rate and Assessing Aflatoxins Production by Aspergillus flavus as a Function of Water Activity and Temperature on Polished and Brown Rice

09-Jan-2013 | Wael Mousa, Farinazleen Mohd. Ghazali, Selamat Jinap, Hasanah Mohd. Ghazali, Son Radu, Journal of Food Science, 2013

Abstract:  The aim of this study was to model the radial growth rate and to assess aflatoxin production by Aspergillus flavus as a function of water activity (aw 0.82 to 0.92) and temperature (12 to 42 °C) on polished and brown rice. The growth of the fungi, expressed as colony diameter (mm) was ...


The stable o‐phthalaldehyde‐ferrocene/6‐ferrocenyl‐1‐hexanethiol pre‐column derivatization high‐performance liquid chromatography of dimethylarginine by novel dual fluorescence and electrochemical detector

28-Sep-2012 | Katsuhiro Suzuki, Masatoki Katayama, Kiyoshi Takamatsu, Satoru Kaneko, Hiromichi Ishikawa, Takahiro Tsukimura, Taday ..., Biomedical Chromatography, 2012

ABSTRACT Monomethylarginine, asymmetric dimethylarginine and symmetric dimethylarginine were separated on a Wakopak Combi ODS with an acetonitrile–100 mm potassium phosphate buffer (pH 7.0; 1:1, v/v). Dimethylarginines were derived from o‐phthalaldehyde for the fluorescence detector and from ...


Auto‐fluorescence for analysis of ripening in Thompson Seedless and colour in Crimson Seedless table grapes

31-Aug-2012 | A. BAHAR, T. KAPLUNOV, Y. ZUTAHY, A. DAUS, S. LURIE, A. LICHTER, Australian Journal of Grape and Wine Research, 2012

Abstract Background and Aims:  Ripening of table grapes is routinely followed by measurement of soluble solids, acidity, colour and firmness. Non‐destructive means to measure ripening can be of great value to determine optimal harvest time and to compare the effect of treatments on ...


Aflatoxin contamination in different fractions of rice from Pakistan and estimation of dietary intakes

03-May-2012 | Shahzad Z. Iqbal, Muhammad R. Asi, Agustin Ariño, Noreen Akram, Muhammad Zuber, Mycotoxin Research, 2012

The purpose of this study was to determine the distribution of aflatoxins in rice milling fractions and to estimate dietary intakes. A total of 413 rice samples (paddy 58, parboiled 69, brown 84, white 93, and broken 109) were analyzed by HPLC with fluorescence detector. The results showed that ...


Determination of gemifloxacin on dried blood spots by hydrophilic interaction liquid chromatography with fluorescence detector: application to pharmacokinetics in rats

14-Mar-2012 | Nageswara Rao, R.; Naidu, Ch. Gangu; Guru Prasad, K.; Padiya, Raju; Agwane, Sachin B., Biomedical Chromatography, 2012

ABSTRACT A highly selective, sensitive and rapid hydrophilic liquid interaction chromatographic method was developed and validated for determination of gemifloxacin on dried blood spots. The chromatographic separation was achieved on a reversed‐phase zwitterionic hydrophilic interaction liquid ...


Aflatoxin M1 in breast milk of nursing Sudanese mothers

02-Mar-2012 | Amin O. Elzupir, Abdel rouf A. Abas, M. Hemmat Fadul, Abueliz K. Modwi, Nima M. I. Ali, Afaf F. F. Jadian, Nuha Abd ..., Mycotoxin Research, 2012

The presence of aflatoxin M1 (AFM1) in the breast milk of nursing Sudanese mothers was investigated using AOAC official method 980.21 as the extraction method and HPLC with fluorescence detector for separation and detection. Following informed consent, 94 breast milk samples of mothers were ...


Modeling the effect of water activity and temperature on growth rate and aflatoxins production by two isolates of Aspergilus flavus on paddy

25-Aug-2011 | Mousa, Wael; Ghazali, Farinazleen Mohd.; Jinap, S.; Ghazali, Hasanah Mohd.; Radu, Son, Journal of Applied Microbiology, 2011

Abstract Aims:  The present study was conducted to characterize the growth and aflatoxins production by Aspergillus flavus on paddy and to develop kinetics models describing the growth rate as a function of water activity (aw) and temperature. Methods and Results:  The growth of A. flavus on ...


Occurrence of aflatoxin B1 and ochratoxin A in Lebanese cultivated wheat

30-May-2011 | Karine Joubrane, André EL Khoury, Roger Lteif, Toufic Rizk, Mireille Kallassy, Christo Hilan, Richard Maroun, Mycotoxin Research, 2011

An extensive survey of filamentous fungi isolated from wheat grown and consumed in Lebanon and their capacity to produce aflatoxin B1 (AFB1) and ochratoxin A (OTA) was conducted to assess fungi potential for producing these toxins in wheat. From the 468 samples of wheat kernel, collected at ...


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