Impact of dietary carotenoid and packaging during frozen storage on the quality of rainbow trout (Oncorhynchus mykiss ) fed carotenoids

2011 ◽  
Vol 91 (6) ◽  
pp. 1075-1082 ◽  
Author(s):  
Georges Choubert ◽  
Frédéric Brisbarre ◽  
Michel Baccaunaud
Keyword(s):  
Rainbow Trout ◽  
Oncorhynchus Mykiss ◽  
Frozen Storage ◽  
Rainbow Trout Oncorhynchus Mykiss ◽  
Dietary Carotenoid

Effects of Methanolic Pomegranate Peel Extract on the Chemical, Sensory, Textural, and Microbiological Properties of Gutted Rainbow Trout (Oncorhynchus mykiss) during Frozen Storage

2016 ◽  
Vol 79 (10) ◽  
pp. 1700-1706 ◽  
Author(s):  
ENAYAT BERIZI ◽  
SEYED SHAHRAM SHEKARFOROUSH ◽  
SAEID HOSSEINZADEH
Keyword(s):  
Rainbow Trout ◽  
Oncorhynchus Mykiss ◽  
Frozen Storage ◽  
Thiobarbituric Acid ◽  
Sterile Water ◽  
Pomegranate Peel ◽  
Rainbow Trout Oncorhynchus Mykiss ◽  
Pomegranate Peel Extract ◽  
Peel Extract

ABSTRACT The effects of methanolic pomegranate peel extract (MPPE) on the quality of gutted rainbow trout (Oncorhynchus mykiss) were examined periodically during 6 months of storage at −18°C. Fresh samples were dipped (ratio of fish to liquid, 1:2 [wt/vol]) in sterile water or in sterile water containing 1, 2, or 4% (wt/vol) MPPE and packed in low-density polyethylene pouches. The control and treated samples were analyzed monthly for microbiological, chemical, sensory, and textural characteristics. Microbial growth in samples was significantly reduced by MPPE treatment (P < 0.05). Smaller increases in the values for total volatile base nitrogen, peroxide, and thiobarbituric acid–reactive substances and better oxidative stability were also obtained. Moreover, higher organoleptic scores were recorded. However, regarding the general acceptability, the highest score was achieved in the 1% MPPE group. Greater hardness and chewiness were obtained with 4% MPPE (P < 0.05). Therefore, dipping fish in MPPE can be considered an effective method to extend the shelf life and the overall quality of the product.

Effects of stocking density on the growth and flesh quality of rainbow trout (Oncorhynchus mykiss) reared in a low-tech aquaponic system

Aquaculture ◽  
2020 ◽  
Vol 529 ◽  
pp. 735653
Author(s):  
Marco Birolo ◽  
Francesco Bordignon ◽  
Angela Trocino ◽  
Luca Fasolato ◽  
Antón Pascual ◽  
...  
Keyword(s):  
Rainbow Trout ◽  
Oncorhynchus Mykiss ◽  
Stocking Density ◽  
Flesh Quality ◽  
Rainbow Trout Oncorhynchus Mykiss
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