Pubblicazione scientifica

Inactivation of Aeromonas hydrophila and Vibrio parahaemolyticus by Curcumin-Mediated Photosensitization and Nanobubble-Ultrasonication Approaches

FILONE TECNOLOGICO	TEMA
economia circolare e sostenibilità

RIASSUNTO

The antimicrobial efficacy of novel photodynamic inactivation and nanobubble technologies was evaluated against Vibrio parahaemolyticus and Aeromonas hydrophila as two important aquatic microbial pathogens. Photodynamic inactivation results showed that LED (470 nm) and UV-A (400 nm)-activated curcumin caused a complete reduction in V. parahaemolyticus at 4 and 22 °C, and a greater than 2 log cfu/mL reduction in A. hydrophila, which was curcumin concentration-dependent (p < 0.05). Furthermore, the photodynamic approach caused a greater than 6 log cfu/mL V. parahaemolyticus reduction and more than 4 log cfu/mL of A. hydrophila reduction in aquaponic water samples (p < 0.05). Our results with the nanobubble technology showed that the nanobubbles alone did not significantly reduce bacteria (p > 0.05). However, a greater than 6 log cfu/mL A. hydrophila reduction and a greater than 3 log cfu/mL of V. parahaemolyticus reduction were achieved when nanobubble technology was combined with ultrasound (p < 0.05). The findings described in this study illustrate the potential of applying photodynamic inactivation and nanobubble–ultrasound antimicrobial approaches as alternative novel methods for inactivating fish and shellfish pathogens.

DATA

Data di pubblicazione: 16/09/2020

AUTORI

RAFEEQ SHAMIL
SHIROODI SETAREH
SCHWARZ MICHAEL H
NITIN NITIN
OVISSIPOUR REZA

ENTE DI AFFERENZA

VIRGINIA SEAFOOD AGRICULTURAL RSCH & EXTENSION CTR VIRGINIA TECH HAMPTON VA 23669 USA SHAMILRAFEEQ363 GMAIL COM SR SHIROODI VT EDU SS MSCHWARZ VT EDU MHS
CTR COASTAL STUDIES COASTAL VT VIRGINIA TECH
DEPT FOOD SCIENCE & TECH UNIV CALIFORNIA DAVIS DAVIS CA 95616 USA NNITIN UCDAVIS EDU
DEPT AGRICULTURAL & BIOLOGICAL ENG UNIV CALIFORNIA DAVIS DAVIS CA 95616 USA
DEPT FOOD SCIENCE & TECH VIRGINIA TECH

RIVISTA

Foods, 9(9), 1306

IMPACT FACTOR

4,092

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