Antimicrobial packaging is one of the most promising active packaging systems. Antimicrobial packaging is the packaging system that is able to kill or inhibit spoilage and pathogenic microorganisms that are contaminating foods. A tremendous effort has been made over the last decade to develop and test films with antimicrobial properties to improve food safety and shelf life. For food preservati...

objective: due to the alarming increase the incidence and prevalence of infectious diseases and increasing bacterial resistance to antibiotics need to discover new strong antimicrobial compounds is feeling.methods: in this study, the antimicrobial properties of spider silk pholcus phalangioides produced in sterile conditions against two bacteria, listeria monocytogenes and esherichia coli with ...

conclusions optimization of medium composition and synergistic antimicrobial activity on the cyanobacteria could lead to production of effective antimicrobials. results c. leptolyngbya had antimicrobial activity individually and in synergy with antibiotics against gram-positive and gram-negative bacteria. the highest activity of the chloroform extract was on gram positive strains and its effect...

Antimicrobial biocompatible polymers form a group of highly desirable materials in medicinal technology that exhibit interesting thermal and mechanical properties, and high chemical resistance. There are numerous types of polymers with antimicrobial activity or antimicrobial properties conferred through their proper modification. In this review, we focus on the second type of polymers, especial...

background :   chitosan is unbranched polysaccharide composed of d-glucosamine and n-acetyl-d-glucosamine. chitosan, derived from shrimp shell, has broad antimicrobial properties against gram-negative, gram-positive bacteria and fungi.   methods :  chitosan was extracted from shrimp shell and studied for cell entrapment and anti-bacterial properties. the hydrogel chitosan was used as the beads ...

Background and Objectives: Onion (Allium cepa L.) possesses aromas and flavours, which have made them one of important ingredients of food. In addition, recent publications have reported that onion and its extract have many biological properties such as antimicrobial and antioxidant. Yellow and White Sweet Spanish onions belonging to Amaryllidaceae, are cultivated all over Iran as a condiment, ...

Endogenous peptide antibiotics are known as evolutionarily old components of innate immunity. Due to interaction with cell membrane these peptides cause permeabilization of the membrane and lysis of invading microbes. However, some studies proved that antimicrobial peptides are universal multifunctional molecules and their functions extend far beyond simple antibiotics. In this review we presen...

To characterize the antimicrobial activities of Kupffer cells, I harvested macrophages from livers with a technique involving perfusion with collagenase and DNase. Ninety-nine percent of glass-adherent cells had typical macrophage morphology, 99% were esterase positive, and 60% phagocytosed opsonized zymosan when challenged with four particles per macrophage. Toxoplasma gondii multiplied within...

Antimicrobial peptides are diverse group of biologically active molecules with multidimensional properties. In recent past, a wide variety of AMPs with diverse structures have been reported from different sources such as plants, animals, mammals, and microorganisms. The presence of unusual amino acids and structural motifs in AMPs confers unique structural properties to the peptide that attribu...

Chloroform and methanol root and shoot extracts of A. aspera showed good amount of antibacterial activity against Klebsiella sp. While pet. Ether (60-80°) root extract showed the activity against B. Substilis only antifungal activity of roots was found in extracts with pet ether, chloroform and methanol against fusarium sp. only. Methanol and Aqueous shoot extracts were weakly active against Pe...