Ahmed G. Abdelhamid

Ozone and non-thermal plasma as sustainable alternatives to chlorine for decontamination of alfalfa seeds and sprouts

Mostafa G. Ali, Ahmed G. Abdelhamid, Ahmed E. Yousef

Multiple foodborne disease outbreaks were linked to contamination of alfalfa sprouts with Shiga toxin-producing Escherichia coli (STEC), with seeds identified as the primary contamination source. These outbreaks highlight the need for effective and sustainable approaches for seed and sprout decontamination. In this …

Égypte, us (code pays fourni par la source)

Enhancing the destruction of Burkholderia cepacia biofilm on stainless steel coupons by combining matrix-degrading enzymes with antimicrobials

Yukta Gharat, Ahmed G. Abdelhamid, Ahmed E. Yousef

Burkholderia cepacia is an underexplored opportunistic pathogen and a food spoilage species. The bacterium may serve as an ideal model for biofilm formation and resilience. Herein, we explored the possibility of enhancing the destruction of preformed B. cepacia biofilm by combining enzymes …

us (code pays fourni par la source)

Prevalence and antimicrobial resistance patterns of Campylobacter jejuni isolated from beef and milk in Gondar town, Amhara region, Ethiopia.

N Seleshe, F.B. Dejene, Biyanasa Adugna, Habte Belete et autres

Éthiopie, us (code pays fourni par la source)

Sublethal shell egg processing increases virulence of Salmonella enterica serovar Enteritidis in C57BL/6 mice

Ahmed G. Abdelhamid, Brian M. M. Ahmer, Ahmed E. Yousef

Mild food processing could trigger stress response, or even elevated virulence, in the targeted pathogen. Such conditions could be encountered during improper pasteurization of shell eggs. Hence, changes in the virulence of Salmonella enterica serovar Enteritidis, driven by sublethal processing of shell …

us (code pays fourni par la source)

The Impact of Training Intervention on Levels of Indicator Bacteria and Prevalence of Selected Pathogens in Raw Milk From Smallholder Women Dairy Farmers in Central Ethiopia

Achenef Melaku Beyene, Seleshe Nigatu, Juan Carlos Archila-Godinez, Kebede Amenu et autres

• Milk from Ethiopia was highly contaminated with indicator and selected pathogenic bacteria. • Training of dairy farmers was associated with decreased levels of total coliforms. • Training was also associated with a lower prevalence of E. coli and STEC. • Sustainable …

Éthiopie, us, Kenya (code pays fourni par la source)

How colonizing alfalfa sprouts modulates the virulence of Shiga toxin-producing Escherichia coli

Mohamed A. M. Ali, Ahmed G. Abdelhamid, Ahmed E. Yousef

Égypte, us (code pays fourni par la source)

Comparative genomics and phenotypic assessment of lactic acid bacteria isolated from artisanal cheese as potential starter cultures

Gabriella J. Gephart, Ahmed G. Abdelhamid, Ahmed E. Yousef

Novel starter cultures are coveted by the dairy industry for enhancing the sensory, quality, and safety attributes of fermented dairy products. In this study, artisanal cheeses were investigated as a source of novel starter cultures. Lactic acid bacteria (LAB) were isolated from …

us (code pays fourni par la source)

Genome sequences of six lactic acid bacteria from artisanal cheese reveal biosynthetic gene clusters encoding antimicrobial compounds

Gabriella J. Gephart, Ahmed G. Abdelhamid, Ahmed E. Yousef

ABSTRACT Lactic acid bacteria are valuable in the production of fermented foods and as sources of antimicrobial peptides (e.g., bacteriocins). The genomes of six lactic acid bacteria, isolated from artisanal cheeses, having biosynthetic gene clusters encoding antimicrobial compounds are reported. The six …

us, Égypte (code pays fourni par la source)

Biological and chemical treatments enhance the quality of wastewater from a potato chips factor

Mohamed Aboueldahab, Mohamed Hesham Yassin, Ahmed G. Abdelhamid, Nesma Ebrahim et autres

Wastewater discharge contains a high level of contaminants that require sufficienttreatment for further reuse and legitimate applications. This study examined the effect ofseasonal variations on treatment performance, and data was generated at duration of oneyear on a monthly basis. Generally, physicochemical and …

Égypte (code pays fourni par la source)

HPLC-DAD method for concurrent estimation of netarsudil, latanoprost and benzalkonium chloride: Stability indicating study, impurity separation, assay of ophthalmic preparations and greenness/whiteness valuation

Heba K. Ashour, Mohamed A. Korany, Ahmed G. Abdelhamid, Tarek S. Belal et autres

Égypte (code pays fourni par la source)

Multidrug-resistance and extended-spectrum beta-lactamase-producing lactose-fermenting enterobacteriaceae in the human-dairy interface in northwest Ethiopia

Achenef Melaku Beyene, Mucheye Gizachew, Ahmed E. Yousef, Hana Haileyesus et autres

BACKGROUND: Antimicrobial resistance (AMR) is among the top public health concerns in the globe. Estimating the prevalence of multidrug resistance (MDR), MDR index (MDR-I) and extended-spectrum beta-lactamase (ESBL)-producing lactose fermenting Enterobacteriaceae (LFE) is important in designing strategies to combat AMR. Thus, this …

Éthiopie, us (code pays fourni par la source)

Production of Polyclonal Antibodies and Development of Competitive ELISA for Quantification of the Lantibiotic Paenibacillin

Ahmed G. Abdelhamid, Macdonald Wick, Ahmed E. Yousef

The discovery and biotechnological application of new antimicrobial peptides are impeded by a lack of sensitive methods for peptide quantification. Paenibacillin is an emerging antimicrobial lantibiotic that was discovered in Paenibacillus polymyxa OSY-DF ATCC PTA-7852, isolated from the fermented vegetable Kimchee. This …

Égypte, us (code pays fourni par la source)