Effects of water distribution and protein degradation on the texture of high pressure-treated shrimp (Penaeus monodon) during chilled storage

Food Control ◽  
2021 ◽  
pp. 108555
Lihang Chen ◽  
Dexin Jiao ◽  
Huimin Liu ◽  
Chen Zhu ◽  
Ying Sun ◽  
2013 ◽  
Vol 24 (3) ◽  
pp. 283-299 ◽  
Barjinder Pal Kaur ◽  
Neelima Kaushik ◽  
P. Srinivasa Rao ◽  
H. N. Mishra

2014 ◽  
Vol 80 (1) ◽  
pp. M142-M146 ◽  
Dae-Hun Park ◽  
Jong-Gi Jung ◽  
Bo-Ram Jung ◽  
Gyeyeop Kim ◽  
Honggyun Lee ◽  

2007 ◽  
Vol 36 (1) ◽  
pp. 76-86 ◽  
Subuntith Nimrat ◽  
Teerapat Sangnawakij ◽  
Verapong Vuthiphandchai

Attila Bibok ◽  
Roland Fülöp

Pressure management is a widely adopted technique in the toolset of drinking water distribution system operators. It has multiple benefits, like reducing physical losses in pipe networks with excessive leakage, prolong the expected lifetime of the pipes and protecting home appliances from unacceptably high pressure. In some cases, even legislation compliance can be the motivation behind pressure management: It is mandatory to supply water at the customer’s connection between 1.5 and 6.0 bar in Hungary since 2011. Diaphragm pressure reducing valves are widespread in the drinking water distribution networks. Although, their sensitivity for gas pocket accumulation in the valve house makes hydraulic calibration of these pressure managed areas a challenging task for hydraulic modelers and network operators. This is especially true when more than one inlet is used to supply the same area in order to increase resilience and flow capacity.This paper investigates the hydraulic properties of pressure reduced areas with multiple inlet points. Model calibration using a single valve and minor loss was found insufficient because the additional pressure loss referenced to the pressure setting has a non-quadratic relationship with flow-rate on the discharge side under real-life circumstances. This phenomenon can be handled by using a PRV (pressure reducing valve) + GPV (general purpose valve) in series.

1999 ◽  
Vol 62 (12) ◽  
pp. 1411-1415 ◽  

This was a study of the influence of high-pressure conditions (200 and 400 MPa, 5 and 20 min, 7°C) on microbiological quality and water-binding properties of vacuum-prepackaged sliced cooked ham and how this affects microbiological changes during chilled storage (2°C). Pressurization caused a degree of microbiological inactivation, which increased with pressure level and processing time. Pressurization at 400 MPa significantly reduced the total viable count and lactic acid bacteria to the extent that after 20 min no Enterobacteriaceae, Baird Parker flora, or Brochothrix thermosphacta were detected throughout any of the chilled storage periods studied. In general, gram-positive flora was more resistant to pressure than gram-negative flora. The fact that high pressure (400 MPa) causes considerable inactivation of microorganisms could be used to prolong the shelf life of vacuum-prepackaged sliced cooked ham.

2020 ◽  
Vol 69 (6) ◽  
pp. 578-590
Florent Pourcel ◽  
Sophie Duchesne

Abstract Unidirectional flushing is a widely used method to remove sedimented particles from water distribution systems and prevent water discolouration events. However, it shows low efficiency in cases of high pressure losses, usually requires large volumes of water, and does not remove incrustations. Air scouring is known for being very effective in particle removal with minimal impacts from pressure loss, requiring little water and improving hydraulic capacities by removing soft incrustations. Flushing sequences of unidirectional flushing and air scouring were performed in similar conditions on 18 pipe sections from four water distribution networks located in the province of Quebec, Canada; unidirectional flushing was also performed on 14 additional pipe sections located in three other water distribution networks. Total suspended solid concentration of flushed water, water flow and pressure were recorded to estimate the amount of flushed particles, the required water volume and the evolution of hydraulic capacities. Within the studied networks, the water requirements for air scouring were approximately 8-fold less than for unidirectional flushing and did not significantly improve the hydraulic capacity of the cleaned pipes.

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