With an ever-increasing demand for clean label products, there is a greater need for efficient and environmentally friendly processes to compete the conventional thermal or chemical treatments. For instance, high-pressure processing (HPP) has been widely studied in the fruit industry from the last two decades. HPP can inactivate or activate different enzymes in fruit juices, pulp, and pur ees. HPP treatment inactivates the enzymes by the alterating the conformation of the protein structure and the active site. Depending on the enzyme, pressure, pH, temperature and treatment time, HPP can increase enzyme activity due to the release of membrane-bound enzymes and also due to changes in protein conformation and active site that facilitate interaction with the substrate. Furthermore, the combination of high pressure, temperature and reduced treatment times offered greater inactivation of enzymes in fruit beverages. This study aimed to investigate the inactivation kinetics of endogenous enzymes in fruit beverages.

Today's consumers demand clean-label healthy products to which no artificial preservatives have been added. Distribution of fresh, safe raw meat or meat products requires reduced numbers of bacteria on its surface when it leaves the processing plant under strict maintenance of low temperatures throughout the supply chain. Means of controlling or even improving the food integrity aim to decontaminate the carcasses or products during or at the end of the production line. In the past decades, high-pressure processing (HPP) has been investigated as an alternative non-thermal preservation technology to match all these demands without compromising safety. HPP treatments could efficiently inactivate the vegetative microorganisms (related to foodborne diseases), but not spores. However, the combination of several non-thermal and conventional preservation techniques under the so-called hurdle technology has been explored to enhance their efficiency.

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The emerging reality of wireless sensor networks deployed as long-lived infrastructure required to serve multiple applications necessitates the development of fine-grained security support. Specifically, to allow sensor nodes to participate in multiple concurrent applications, access control is required on a per-application basis. This paper presents a policydriven security architecture for wireless sensor networks that addresses the concern of fine-grained access control and secure deployment of security policies, while respecting the resource-constrained nature of wireless sensor networks. A prototype of this system has been realized and evaluated using the LooCI component model and the Sun SPOT sensor network platform.

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