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Browsing Theses and Dissertations by Author "Karam, Layal, Ph.D."

Browsing Theses and Dissertations by Author "Karam, Layal, Ph.D."

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  • Assessment of the microbiological quality of spices and herbs commercialized in Lebanon 
    Salloum, Talia (Notre Dame University-Louaize, 2020-06-10)
    Spices and herbs are widely used in almost all types of food preparation and their microbial contamination may pose spoilage and public health risk. Thus, the aim of this study was to assess the microbiological quality of spices and herbs commercialized in Lebanon. A total of 480 samples of thirteen most commonly consumed types of spices and herbs were collected at two complete sets at three months interval. Each type was purchased in 5 common brands from 4 categories: packaged in companies with Food Safety Management System (FSMS), packaged in companies without FSMS, packaged imported, and ...
  • Determination of toxic element contamination in thyme and thyme-containing products consumed in Lebanon 
    Baroud, Caline (Notre Dame University-Louaize, 2022-06)
    Thyme herbs constitute a major part of the Mediterranean diet and are gaining worldwide popularity. However, their chemical contamination with toxic metals may put consumers at a health risk. Thus, the aim of this study was to assess the incidence of Arsenic (As), Cadmium (Cd), Lead (Pb) and Mercury (Hg) in thyme herbs and thyme-containing products. For this, 180 samples pooled into 36 composite samples of the most consumed types of thyme-containing products and thyme herbs were collected twice at three-month intervals. Samples were analyzed by Inductively Coupled Plasma Mass Spectrometry (ICP-MS) ...
  • Dictary exposure and risk assessment of mycotoxins in thyme and thyme-based products marketed in Lebanon 
    Koaik, Lara (Notre Dame University-Louaize, 2022-02)
    Thyme is a Mediterranean herb widely used worldwide. However, it is produced in areas of high humidity and temperature which is favorable conditions for mold growth and mycotoxins production which pose public health risk. In Lebanon, no studies have been done to investigate aflatoxin B1 (AFB1) and ochratoxin A (OTA) contamination in thyme and thyme-based products. This study aimed at evaluating the incidence of AFB1 and OTA in those products, related dietary exposure and cancer risk for regular and high consumption. A total of 160 samples of thyme and thyme-based products were collected and ...

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