Microbial and Quality Attributes of Beef Steaks under High-CO Packaging: Emitter Pads versus Gas Flushing.

Over 21 days of cold storage, the quality and microbial composition of beef steaks in response to different high-CO packaging conditions achieved by flushing gas mixtures or embedding gas emitters into the packages were studied. The results revealed that the high levels of CO, achieved by either the gas flushing or the CO emitter pads, effectively controlled the number of aerobic counts. The headspace CO increased quickly in response to using the CO emitter pads, and the meat samples presented different pH levels and surface color (a* and b*) values compared to the samples packaged with the gas flushing technique.

The pathogenic and spoilage bacteria associated with red meat and application of different approaches of high CO packaging to extend product shelf-life.

With the fast-global development of packaging techniques, the potential antimicrobial effect of CO, as a safe, cheap and readily available gas, makes it the integral component for packaging of meat products. The associated spoilage and/or pathogenic bacteria on raw meat may respond in different ways to elevated CO concentrations. The growth of some aerobic Gram-negative bacteria such as spp.

Shelf-life extension of pomegranate arils using chitosan nanoparticles loaded with Satureja hortensis essential oil.

Background: This study was conducted in two parts to improve the antimicrobial activity and stability of Satureja hortensis essential oil (SEO) and its impacts on the quality of pomegranate arils. In the first part, SEO was encapsulated by an ionic gelation technique into 142.2-267.

Ultrasonic potential in maintaining the quality and reducing the microbial load of minimally processed pomegranate.

Difficulty of Pomegranate fruit peeling and arils separation are the main motivations of progressive ready-to-eat pomegranate fresh arils industry. Also, extracted pomegranate arils are highly perishable due to water loss and microbial contamination expose. The aim of the current work was then to evaluate the effect of ultrasound for 15 and 30 min on maintenance of bioactive compounds and microbial load reduction of pomegranate arils cv.