Đăng nhập
 
Tìm kiếm nâng cao
 
Tên bài báo
Tác giả
Năm xuất bản
Tóm tắt
Lĩnh vực
Phân loại
Số tạp chí
 

Bản tin định kỳ
Báo cáo thường niên
Tạp chí khoa học ĐHCT
Tạp chí tiếng anh ĐHCT
Tạp chí trong nước
Tạp chí quốc tế
Kỷ yếu HN trong nước
Kỷ yếu HN quốc tế
Book chapter
Tạp chí quốc tế 2023
Số tạp chí 86(2023) Trang:
Tạp chí: Journal of Food Protection
Liên kết:

Biofilm formation of Listeria monocytogenes in food processing environments cause potential source of cross‐ contamination to foodstuffs; hence, the control of biofilm is currently addressed to find effective solutions for preventing biofilm formation or eliminating the established one. Fortyfive strains of Listeria monocytogenes isolated from Pangasius fishprocessing plants were studied for their capability to form a biofilm on 96well microtiter plate by using the conventional crystal violet staining. Additionally, the inhibitory effect of biofilm formation by food additives including monascus pigment and εpolylysine was examined. The average OD value showing biofilm mass of all 45 strains L. monocytogenes increased with an increasing temperature and time (< 0.05). Monascus pigment and εpolylysine significantly decreased biofilm formation by 80 ± 5.5% and 20 ± 5.9%, respectively, at the tested concentration (< 0.05) Further, the effects of lysozyme (0.1 mg/mL) alone or in combination with slightly acidic hypochlorous water (SAHW) with 40 mg/L available chlorine or sodium hypochlorite (NaOCl) with 100 mg/L available chlorine against 7d established biofilm of L. monocytogenes were investigated. The results indicated that slightly acidic hypochlorous water alone exhibited significant antibacterial activity (< 0.05), decreasing the viable count by 5.2 ± 0.5 log CFU/mL. It seems that sequential treatment of lysozyme and SAHW showed an additional efficacy against biofilm of L. monocy- togenes on polystyrene plate surface, reducing 70% of biomass of biofilm and 7.6 ± 0.3 log of biofilm viable cells (< 0.05). Additionally, SAHW exhibited greater bactericidal activity against viable biofilm cells than NaOCl did. This result reveals that SAHW is a promising disinfectant agent against L. monocytogenes and the potential alternative to NaOCl in practice.

Các bài báo khác
Số tạp chí 13(2023) Trang: 603-609
Tạp chí: International Journal of Energy Economics and Policy
Số tạp chí 11(2023) Trang: e0428
Tạp chí: Journal of Law and Sustainable Development
Số tạp chí 50(2023) Trang: 47-61
Tạp chí: Journal of Hunan University Natural Sciences
Số tạp chí 27(2023) Trang: 350–351
Tạp chí: International Journal for Academic Development
Số tạp chí 18(2023) Trang: 196-222
Tạp chí: International Journal of Emerging Technologies in Learning


Vietnamese | English






 
 
Vui lòng chờ...