Layal Karam

ORCID: 0000-0002-6970-0174
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About
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Research Areas
  • Essential Oils and Antimicrobial Activity
  • Nanocomposite Films for Food Packaging
  • Antimicrobial agents and applications
  • Listeria monocytogenes in Food Safety
  • Food Safety and Hygiene
  • Microencapsulation and Drying Processes
  • Meat and Animal Product Quality
  • biodegradable polymer synthesis and properties
  • Mycotoxins in Agriculture and Food
  • Bacterial biofilms and quorum sensing
  • Wheat and Barley Genetics and Pathology
  • Antimicrobial Peptides and Activities
  • Heavy Metals in Plants
  • Biopolymer Synthesis and Applications
  • Probiotics and Fermented Foods
  • Heavy metals in environment
  • Phytochemicals and Antioxidant Activities
  • Heavy Metal Exposure and Toxicity
  • Microplastics and Plastic Pollution
  • Garlic and Onion Studies
  • Food Waste Reduction and Sustainability
  • Protein Hydrolysis and Bioactive Peptides
  • Dyeing and Modifying Textile Fibers
  • Bee Products Chemical Analysis
  • Postharvest Quality and Shelf Life Management

Qatar University
2022-2025

Notre Dame University – Louaize
2018-2021

École Nationale Supérieure de Chimie de Lille
2013-2016

Centre National de la Recherche Scientifique
2013-2016

American University of Beirut
2016

Polytech Lille
2013

Abstract Recent developments in micro and nanoencapsulation are promising tools to encounter the different limitations of essential oil formulations, enhance their functionalities, protect them from external environmental conditions. This review addresses current studies progresses related development encapsulated oils using systems carrier material types. It also focuses on formation methods used with subsequent physicochemical characterization developed particles. Moreover, this considers...

10.1007/s00289-023-04916-0 article EN cc-by Polymer Bulletin 2023-07-29

Our study evaluated aflatoxin B1 (AFB1) levels in packed rice marketed Lebanon and determined the exposure to this toxin from consumption. A total of 105 white, parboiled, brown bags were collected. Enzyme-linked immunosorbent assay was used measure AFB1. comprehensive food frequency questionnaire completed by 500 participants determine patterns consumption and, subsequently, AFB1 Lebanon. detected all samples (100%). The average concentration ± standard deviation 0.5 0.3 μg/kg....

10.4315/jfp-21-434 article EN publisher-specific-oa Journal of Food Protection 2022-02-11

This study aimed at evaluating the incidence of aflatoxin B1 (AFB1) and ochratoxin A (OTA) in thyme thyme-based products, related dietary exposure, cancer risk for regular high consumption. total 160 samples were collected, 32 composite analyzed. AFB1 OTA respectively found 84% (27/32) 38% (12/32) samples. exceeded limits 41% (13/32) 25% (8/32) according to Lebanese European standards, respectively. was unacceptable only 6% (2/32) 3% (1/32) daily exposure shown be 4.270 1.345 ng/kg bw/day,...

10.3390/toxins14050331 article EN cc-by Toxins 2022-05-06

Biofilms consist of microbial communities enclosed in a self-produced extracellular matrix which is mainly responsible biofilm virulence. Targeting this could be an effective strategy to control biofilms. In work, we examined the efficacy two proteolytic enzymes, pepsin and trypsin, degrade P. aeruginosa E. faecalis biofilms their synergistic effect when combined with carvacrol. The minimum dispersive concentrations (MDCs) contact times as well minimal inhibitory (MICs) carvacrol, were...

10.3390/microorganisms11010143 article EN cc-by Microorganisms 2023-01-06

In the present work, ginger essential oil (GEO) loaded chitosan (CS) based films incorporated with varying concentrations of gelatin (GE) were fabricated and dried at different conditions (25 °C 45 °C). The physio-chemical, mechanical antioxidant potential determined. Films showed better physical attributes less thickness, swelling degree (SD), moisture content, water vapor permeability (WVP), more transparency, characteristics. Fourier transform infrared spectroscopy (FTIR) revealed...

10.3390/foods12020364 article EN cc-by Foods 2023-01-12

Aflatoxin M1 (AFM1) is a potent mycotoxin that can contaminate milk and dairy products. It metabolite of aflatoxin B1 (AFB1), which produced by certain fungi infect crops. In Lebanon, traditional production—including various cheeses, yogurt, Labneh—is widely practiced. However, there limited information on how AFM1 transfers behaves in these This study aimed to fill knowledge gap examining the transfer from artificially contaminated into Lebanese products, specifically Halloumi, Akkawi,...

10.1080/19440049.2025.2474155 article EN Food Additives & Contaminants Part A 2025-03-11

Study of peptides adsorption on surfaces remains a current challenge in literature. A complementary approach, combining X‐ray photoelectron spectroscopy (XPS) and time‐of‐flight secondary ion mass spectrometry (ToF‐SIMS) was used to investigate the antimicrobial peptide nisin hydrophilic hydrophobic surfaces. The native low density polyethylene as support it grafted with acrylic acid render hydrophilic. XPS permitted confirm determine its amount ToF‐SIMS identify adsorbed bacteriocin type...

10.1002/psc.2512 article EN Journal of Peptide Science 2013-04-29

Spices and herbs are susceptible to various contaminants, including heavy metals. Our study aimed quantify the levels of lead (Pb), mercury (Hg), cadmium (As), (Cd) in 96 composite samples 13 spices frequently consumed Lebanon. Twenty percent (19/96) 4% (4/96) exceeded permissible Pb Cd, respectively all met As Hg according Codex Alimentarius standards. For unpackaged had highest unacceptable 31% (8/26) 8% (2/26), respectively. The locally packaged companies with without Food Safety...

10.1371/journal.pone.0307884 article EN cc-by PLoS ONE 2024-08-23

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 health risk. The objective this study was to assess incidence Arsenic (As), Cadmium (Cd), Lead (Pb) Mercury (Hg) in thyme-containing products. Composite samples were collected twice six-month interval. Samples digested by microwave digestion oven analyzed Inductively Coupled Plasma Mass Spectrometry (ICP-MS). 11%,...

10.1016/j.toxrep.2022.10.014 article EN cc-by Toxicology Reports 2022-01-01

The olive oil production sector generates considerable quantities of liquid by-products (olive-mill wastewater, OMWW) which, if left untreated, can cause detrimental environmental impacts. This study aimed to investigate the influence Lebanese geographical origin, harvesting time and processing system their interactions on chemical biological characteristics these by-products. results showed that interaction all three studied factors composition OMWW, were highly significant (p<0.001)....

10.1016/j.eti.2023.103365 article EN cc-by Environmental Technology & Innovation 2023-09-14

Our study aims to evaluate the ochratoxin A (OTA) in rice marketed Lebanon and United Arab Emirates (UAE), determine exposure OTA from consumption. All brands available market were collected twice (total number of samples: 105 127 UAE, respectively). Using ELISA, 56 (53%) samples 73 (58%) UAE above limit quantification (0.8 μg/kg). The average concentrations positive ± standard deviations 1.29 0.32 1.40 0.42 μg/kg respectively. Only one sample (1%) had a level at borderline European Union...

10.3390/ijerph191711074 article EN International Journal of Environmental Research and Public Health 2022-09-04
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