The demand for chicken meat has surged globally due to its status as a primary protein source in human diets. However, ensuring high‐quality meat products has become an increasingly important subject to consumers. In this study, 21 articles from PubMed and Web of Science databases published between 2005 and 2023 were examined to assess the influence of probiotic supplementation on broiler meat quality. The meta‐analysis revealed significant findings across various meat quality parameters. Specifically, probiotics were found to significantly affect meat colour parameters, including redness, yellowness, and lightness, in both breast and thigh meat samples. Moreover, significant differences were observed in parameters such as water‐holding capacity (p < 0.001), cook loss (p = 0.047), and shear force (p = 0.025) between control and probiotic groups. However, it's essential to note the considerable heterogeneity among the studies, emphasising the need for a cautious interpretation of the results. Despite this variability, the study underscores the potential of probiotics to positively influence broiler meat quality, highlighting avenues for further research and standardisation in poultry production practices. These findings also contribute to a better understanding of probiotics’ role in improving meat quality and meeting consumer preferences for nutritious and high‐quality poultry products.
This study examined the incidence of Clostridium perfringens in raw, ready-to-cook (RTC), and ready-to-eat (RTE) meat and meat-based products (N = 306) collected from restaurants, supermarkets, and butcher shops in Bursa, Turkey. In addition, we investigated the presence of the C. perfringens enterotoxin (CPE), as well as cpe genes and their source (chromosomal or plasmid borne). In this study, tryptose sulfite cycloserine (TSC) agar for classic culture isolation and API and real-time polymerase chain reaction (RT-PCR) techniques were used to identify C. perfringens and detect cpa and cpe genes from these products, respectively. Seventeen C. perfringens isolates (5.6%) were isolated and identified with API 20A. In addition, 42 of 81 suspicious isolates (51.9%) were identified as C. perfringens using RT-PCR. Of the 81 suspicious isolates tested by RT-PCR, 22 (27.2%) carried the cpe gene either on the plasmid or chromosome. Twenty-one isolates were positive for chromosomal cpe (C-cpe), and one was positive for plasmid-borne cpe (P-cpe). CPE was detected in 31.8% (7/22) of the cpe positive isolates by the PET-RPLA test. In conclusion, C. perfringens and their CPEs were present in raw, RTC, and RTE meat and meat-based foods in this study. It is emphasized that the presence of C. perfringens and the cpe gene in these foods may be a potential risk for human health.
Consuming raw or undercooked mussels can lead to gastroenteritis and septicemia due to Vibrio contamination. This study analyzed the prevalence, density, species diversity, and molecular traits of Vibrio spp. in 48 fresh raw wild mussels (FRMs) and 48 ready-to-eat stuffed mussels (RTE-SMs) through genome analysis, assessing health risks. The results showed Vibrio prevalence rates of 12.5% in FRMs and 4.2% in RTE-SMs, with V. alginolyticus as the most common species (46.7%). It was determined that the seasonal distribution of Vibrio spp. prevalence in the samples was higher in the summer months. The genome sizes of the Vibrio spp. ranged from approximately 3.9 to 6.1 Mb, with the GC contents varying between 41.9% and 50.4%. A total of 22 virulence factor (VF) classes and up to six antimicrobial resistance (AMR) genes were detected in different Vibrio species. The presence of nine different biosynthetic gene clusters (BGCs), 27 prophage regions, and eight CRISPR/Cas systems in 15 Vibrio strains provides information about their potential pathogenicity, survival strategies, and adaptation to different habitats. Overall, this study provides a comprehensive understanding of the genomic diversity of Vibrio spp. isolated from FRM and RTE-SM samples, shedding light on the prevalence, pathogenicity, and toxicity mechanisms of Vibrio-induced gastroenteritis.
Obezite, küresel boyutta önemli bir halk sağlığı sorunudur. Hafif şişmanlık ve obezite; kardiyovasküler hastalıklar ve tip 2 diyabet başta olmak üzere kısa ve uzun süreli sağlık sorunlarına zemin hazırlayarak morbidite ve mortalite oranını arttırmaktadır. Dünyadaki birçok kişi vücut ağırlığını azaltmak veya korumak için çeşitli diyetler yapmaktadır. Ancak, insanlar daha hızlı zayıflamanın yolları ile daha yakından ilgilenmektedir. İnsanların estetik kaygılarını, daha az çaba ile daha iyi görünme ve daha iyi hissetme zaaflarını bilen kişilerce popüler diyetler ön plana çıkmaktadır. Bu derlemede, güncel literatür eşliğinde popüler diyet uygulamalarının kısa ve uzun dönemdeki vücut ağırlığı ve sağlık üzerine olası etkilerinin değerlendirilmesi amaçlanmıştır.
The Gram-negative genus Aeromonas contains diverse bacterial species that are prevalent in aquatic environments. This present study describes three novel Aeromonas strains: A. ichthyocola sp. nov. A-5T and A. mytilicola subsp. aquatica subsp. nov. A-8T isolated from rainbow trout (Oncorhynchus mykiss), and A. mytilicola sp. nov. A-7T isolated from mussels (Mytilus galloprovincialis), respectively. Genomic analyses revealed that strains A-5T and A-7T shared the highest 16S rRNA gene sequence similarity with A. rivipollensis P2G1T (99.7% and 99.8%, respectively), while strain A-8T exhibited 99.7% identity with A. media RMT. Together with morphological, physiological, and biochemical data, genome-based analyses provided additional evidence for species differentiation. Digital DNA–DNA hybridization (dDDH; 56.8−65.9%) and average nucleotide identity (ANI; 94.2–95.7%) values fell below the species delineation thresholds, confirming that these isolates represent distinct taxa. Pathogenicity assays using greater wax moth (Galleria mellonella) larvae demonstrated strain-specific virulence profiles. Further genomic analyses identified biosynthetic gene clusters for nonribosomal peptides (NRPs) and ribosomally synthesized and post-translationally modified peptides (RiPPs), which often have roles in secondary metabolite production. Ecological analyses, based on genomic comparisons and metagenomic database searches, revealed the adaptability of the strains to diverse habitats, including freshwater, wastewater, and activated sludge. Based on the genetic and phenotypic data, the novel taxa Aeromonas ichthyocola sp. nov. A-5ᵀ (LMG 33534ᵀ = DSM 117488ᵀ), Aeromonas mytilicola sp. nov. A-7ᵀ (LMG 33536ᵀ = DSM 117490ᵀ), and Aeromonas mytilicola subsp. aquatica subsp. nov. A-8ᵀ (LMG 33537ᵀ = DSM 117493ᵀ) are proposed.