PARTIAL CHARACTERIZATION OF LORICARIID CATFISH (Pterygoplichthys disjunctivus, WEBER, 1991) ROE

Abstract

A partial characterization (proximate, amino acid and fatty acid compositions, electrophoresis, a w and color) of loricariid catfish (Pterygoplichthys disjunctivus, Weber, 1991) roe, an invasive species of dams and rivers worldwide, was carried out and evaluated as a possible food resource. Mature roe showed high protein and lipid concentrations (26.0 ± 1.5 and 8.2 ± 0.7, respectively), low a w (0.89), and a yellow to orange color (hue angle of 68.90 ± 8.5° and chroma of 32.0 ± 0.2). Roe showed that essential amino acids (EAA) prevailed over non-essential (NEAA) (EAA/NEAA ratios of 1.4 and 1.6 for total and free amino acids, respectively) and low ω6/ω3 balance (0.98). Due to its characteristics, loricarid catfish roe can be used as a raw material for caviar-type products.

Shelf-life of loricariid catfish (Pterygoplichthys disjunctivus [Weber, 1991]) roe stored in ice

“…proteins with high essential amino acids and fatty acids with a good ω6/ω3 balance (Guillén-Sánchez et al, 2015). However, to exploit the roe of this species as food, more research has to be conducted since there is practically no knowledge about it, neither its behaviour during its shelf-life.…”

Uso de la harina del pez diablo (Pterygoplichthys spp.) en la fertilización orgánica del tomate (Solanum lycopersicum L.)

“…Respecto al género Pterygoplichthys, Guillén et al (2015) hicieron una caracterización parcial de huevos de P. disjunctivus con contenidos de proteínas, lípidos y cenizas de 23.7, 8.05 y 1.9 %, respectivamente. Ariyarathne et al (2014) informaron que la carne de P. multiradiatus presentó un contenido de proteínas, lípidos y cenizas de 17.79, 0.58 y 1.2 %, respectivamente.…”