Ultimate purification of coral materials with alcohol under supercritical pressure conditions

Coral is a ceramic material whose texture and composition is adapted for the realization of osseous substitutes in case of disease or accidental osseous losses. Being a micro-organism shaped mineral, the coral must undergo different washing treatments in order to eliminate the traces of amino acids to preserve only its mineral structure. The choice of high-pressure washing enables solvents to penetrate completely in coral's porosities..

Stabilization of caviar by high pressure.

International Congress, Technological Innovation and Enhancement of Marginal Products, Faculty of Agricultural Science, Foggia 2005

Inactivation of Staphylococcus aureus and Salmonella enteriditis in tryptic soy broth and caviar samples by high pressure processing

We studied the action of high pressure processing on the inactivation of two foodborne pathogens, Staphylococcus aureus ATCC 6538 and Salmonella enteritidis ATCC 13076, suspended in a culture medium and inoculated into caviar samples. The baroresistance of the two pathogens in a tryptic soy broth suspension at a concentration of 108-109 colony-forming units/ml was tested for continuous and cycled pressurization in the 150- to 550-MPa range and for 15-min treatments at room temperature. The increase of cycle number permitted the reduction of the pressure level able to totally inactivate both microorganisms in the tryptic soy broth suspension, whereas the effect of different procedure times on complete inactivation of the microorganisms inoculated into caviar was similar

Inactivation of staphylococcus aureus and Salmonella enteritidis in TSB and caviar samples by Higt pressure processing.

Atti 3rd International Conference on High Pressure Bioscience and Biotechnology, Rio de Janeiro, Brasil 200

Inactivation of Staphylococcus aureus and Salmonella enteriditis in tryptic soy broth and caviar samples by high pressure processing

We studied the action of high pressure processing on the inactivation of two foodborne pathogens, Staphylococcus aureus ATCC 6538 and Salmonella enteritidis ATCC 13076, suspended in a culture medium and inoculated into caviar samples. The baroresistance of the two pathogens in a tryptic soy broth suspension at a concentration of 108-109 colony-forming units/ml was tested for continuous and cycled pressurization in the 150- to 550-MPa range and for 15-min treatments at room temperature. The increase of cycle number permitted the reduction of the pressure level able to totally inactivate both microorganisms in the tryptic soy broth suspension, whereas the effect of different procedure times on complete inactivation of the microorganisms inoculated into caviar was similar

Mesure de la résistance à la compression d'œufs d'esturgeons : application au caviar

Un dispositif de compression a été mis au point pour mesurer la résistance à la compression d'œufs d'esturgeons. Le capteur de force enregistre les efforts dans la gamme 0–500 mN, le capteur de déplacement enregistre les déformations de l'œuf au cours de l'essai. Un suivi par caméra est utile pour visualiser la déformation de l'œuf ainsi que l'endommagement de sa membrane externe. Le dispositif développé est suffisamment maniable et robuste pour être transporté sur les lieux de pêche ou en laboratoire. Ce dispositif permet de suivre l'évolution de la maturité de l'œuf ou les différentes phases de préparation du caviar de façon à maîtriser le processus de fabrication ou de conservation