Chemical, microbiological, and sensory parameters during the refrigerated storage of silver catfish (Rhamdia quelen) exposed in vivo to the essential oil of Lippia alba

This study evaluated whether the essential oil of Lippia alba (EO) used as a sedative for fish transport would increase the stability of silver catfish during ice storage. Fish were transported (6 h) with water alone (control), 30 or 40 µL/L of EO in water. After transport, fish were slaughtered and...

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Published in:Journal of food science and technology 2018-04, Vol.55 (4), p.1416-1425
Main Authors: de Lima Veeck, Ana Paula, Daniel, Ana Paula, Klein, Bruna, Quatrin, Andréia, de Souza Rezer, Ana Paula, Milani, Liana Guidolin, Zeppenfeld, Carla Cristina, da Cunha, Mauro Alves, Heldwein, Clarissa Giesel, Heinzmann, Berta Maria, Parodi, Thaylise Vey, Baldisserotto, Bernardo, Emanuelli, Tatiana
Format: Article
Language:English
Subjects:
Antimicrobial activity
Bacteria
Biodegradation
Catfish
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Cold storage
Essential oils
Fish
Food Science
Freshness
Hypoxanthine
Ice
In vivo methods and tests
Lippia alba
Nutrition
Oils & fats
Original
Original Article
Psychrotrophic bacteria
Storage
Studies
Transport
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Summary:This study evaluated whether the essential oil of Lippia alba (EO) used as a sedative for fish transport would increase the stability of silver catfish during ice storage. Fish were transported (6 h) with water alone (control), 30 or 40 µL/L of EO in water. After transport, fish were slaughtered and stored in ice. Data on mesophilic and psychrotrophic bacteria counts during storage did not support the evidence for the antimicrobial activity of EO. However, fish treated with EO (30 and 40 µL/L) had delayed onset of rigor mortis , delayed increase of pH after 34 days of storage, and delayed peak of hypoxanthine formation and its degradation. In addition, the demerit sensory score of EO-treated fish (30 and 40 µL/L) was lower than that of controls along the storage. Thus, the use of EO as a sedative in the water used to transport silver catfish can delay the loss of freshness and the deterioration of whole fish stored in ice.
ISSN:0022-1155
0975-8402
DOI:10.1007/s13197-018-3056-7