Combining High-Pressure Processing and Supercritical Carbon Dioxide for Inactivation of Listeria innocua

The effect of high-pressure treatment with supercritical CO2 on the inactivation of Listeria innocua in a fish soup was investigated. The soup was inoculated with L. innocua, packaged in modified atmosphere with 50:50 or 95:5 CO2:N2, high-pressure processed (300, 350, 400 and 600 MPa, 2 min) under subcritical (T 304 K) and stored at 4 °C for up to 53 days. Treatment at 400 and 600 MPa had a significant (p < 0.05) effect on L. innocua under both supercritical and subcritical conditions. In contrast, pressurization at 350 MPa and supercritical conditions were needed to significantly (p < 0.05) inactive L. innocua. Increased levels of CO2 in the headspace significantly (p < 0.05) reduced the bacterial load during processing, and supercritical conditions had a significant (p < 0.01) interaction with both CO2 levels and pressure. Increased storage time gave significantly increased levels of L. innocua at 400 and 600 MPa. In addition, high levels of CO2 significantly decreased (p < 0.001) growth. However, 350 MPa under supercritical conditions seemed to set the L. innocua in a permanent lag phase, with slow and steadily decreasing numbers of bacteria during storage. All the design variables resulted in significant inactivation of L. innocua, and supercritical conditions combined with high levels of CO2 inhibited the recovery of L. innocua to a large degree.publishedVersio

Independent and combined effects of high pressure, microwave, soluble gas stabilization, modified atmosphere and vacuum packaging on microbiological and physicochemical shelf life of precooked chicken breast slices

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Sensory Properties and Chemical Composition of Fish Solubles Obtained from Upcycling of Fish Filleting Side Streams

The whitefish processing industry igenerates large amounts of food-grade side streams consisting of trimmings, head-backbone-skin (HBS), and viscera. Several factory fishing vessels have fishmeal plants to utilize the residues after onboard processing of the fish, however, at present, the protein-rich solubles is discarded. . In this study, fish solubles based on side streams from cod, saithe, haddock, and golden redfish were produced based on cooking, mechanical dewatering, centrifugation, and membrane filtration. All products had high flavor intensity, and only minor differences between fish species on sensory attributes were observed, suggesting a potential application as broth and flavor enhancer.Sensory Properties and Chemical Composition of Fish Solubles Obtained from Upcycling of Fish Filleting Side StreamspublishedVersio

Nursing students'experience of learning ethical competence and person-centered care through simulation

Background: Ethics is a difficult subject for nursing students to grasp and learn but, like person-centredness, it has an important role in the relationship between nurses and patients. Simulation has been found to be a suitable method for learning nursing procedures and actions, and the researchers wanted to explore whether it could be a suitable learning strategy for acquiring ethical skills, which are a prerequisite for delivering person-centred care. Aim: In response to the research question How can nursing students develop ethical competence through simulation? the study sought to consider how students could learn ethical reflection and decision making through simulated ethical dilemmas, and whether this could enhance their ability to deliver person-centred care. Design: The study was qualitative and exploratory, and based on students acting in scenarios representing general ethical dilemmas in nursing. There were four focus group interviews with nine nursing students in their second year, during their clinical practice. Students were recruited by self-selection. Data were transcribed and analysed using Graneheim and Lundman’s content analysis. Findings: The students gained experience through participation and acting in simulation exercises. The shared experience was a good starting point for guided reflection on ethical and tacit knowledge, and the acquired experience led to knowledge that is transferable to similar situations in clinical practice. Conclusion: This study shows that simulation is a valuable method for learning ethical reflection in nursing education. It found simulation to be suitable for developing ethical awareness that helps prepare nursing students to deliver person-centred practice. It has become a permanent learning strategy within nursing training at Nord University

Effect of the Application of Ultrasound to Homogenize Milk and the Subsequent Pasteurization by Pulsed Electric Field, High Hydrostatic Pressure, and Microwaves

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