Se evaluó el uso del ión cobre en solución para preservar a bordo la anchoveta (Engraulis ringens J.), destinada a la producción de harina de pescado. Los resultados indicaron que la utilización de 7 mg/L de iones cobre en solución fue eficiente, hasta las 30 horas de almacenamiento en condiciones ambientales, para preservar la anchoveta destinada a la elaboración de harina de pescado de buena calidad. Así mismo, dicha condición de almacenamiento posibilitó la reducción de su contenido de nitrógeno básico volátil total (TVB-N) desde 35.61 mg/100 g hasta 20.04 mg/100 g. De igual forma la disminución de la carga microbiana hasta valores de 9.7 x 104 ufc/g permitió mantener el calificativo de pescado fresco por 15 horas de almacenamiento. La variación del valor peróxido en el aceite de anchoveta almacenada demostró que el ión cobre acelera los cambios oxidativos...

This work aimed to produce cold-smoked skinless paiche fillets that comply with the quality, safety and acceptability standards regarding physical, chemical and microbiological aspects. The production stages were reception, washing, slicing and cutting, brining, draining, smoking, chilling, packaging, freezing and storage. The results showed that cold-smoked skinless paiche fillets had 75.10% moisture and 35.65% of 2.90% sodium chloride. The fillets had 20.0% protein, 2.5% fat and 2.4% ash. The total energy per 100 g of fish was 102.5 kcal. The microbiological results of the cold-smoked fillets met the recommended quality standards for this type of product, and confirmed that good manufacturing practices were used during their production.

This work aimed to produce cold-smoked skinless paiche fillets that comply with the quality, safety and acceptability standards regarding physical, chemical and microbiological aspects. The production stages were reception, washing, slicing and cutting, brining, draining, smoking, chilling, packaging, freezing and storage. The results showed that cold-smoked skinless paiche fillets had 75.10% moisture and 35.65% of 2.90% sodium chloride. The fillets had 20.0% protein, 2.5% fat and 2.4% ash. The total energy per 100 g of fish was 102.5 kcal. The microbiological results of the cold-smoked fillets met the recommended quality standards for this type of product, and confirmed that good manufacturing practices were used during their production.

Trout was introduced in our country in 1928 and managed to adapt to the freshwater ecosystems of the Peruvian highlands. It currently represents the economic livelihood of many micro and small-scale fish farmers, together with medium and large companies in regions such as Puno, Pasco, Huancavelica and Junín, whose growth in recent years has been considerable. The 71.98% of this resource was destined for consumption in its fresh state and only 28.02% was processed as frozen, which shows the lack of diversification of value-added products in the production chain of this sweet aquaculture species, together with a shortage of research. Therefore, the purpose of this research was to compile the latest studies, carried out in different countries, related to the processing of this species because it is an excellent raw material due to its nutritional value and techno-functional characteristics...

Trout was introduced in our country in 1928 and managed to adapt to the freshwater ecosystems of the Peruvian highlands. It currently represents the economic livelihood of many micro and small-scale fish farmers, together with medium and large companies in regions such as Puno, Pasco, Huancavelica and Junín, whose growth in recent years has been considerable. The 71.98% of this resource was destined for consumption in its fresh state and only 28.02% was processed as frozen, which shows the lack of diversification of value-added products in the production chain of this sweet aquaculture species, together with a shortage of research. Therefore, the purpose of this research was to compile the latest studies, carried out in different countries, related to the processing of this species because it is an excellent raw material due to its nutritional value and techno-functional characteristics...

Trout was introduced in our country in 1928 and managed to adapt to the freshwater ecosystems of the Peruvian highlands. It currently represents the economic livelihood of many micro and small-scale fish farmers, together with medium and large companies in regions such as Puno, Pasco, Huancavelica and Junín, whose growth in recent years has been considerable. The 71.98% of this resource was destined for consumption in its fresh state and only 28.02% was processed as frozen, which shows the lack of diversification of value-added products in the production chain of this sweet aquaculture species, together with a shortage of research. Therefore, the purpose of this research was to compile the latest studies, carried out in different countries, related to the processing of this species because it is an excellent raw material due to its nutritional value and techno-functional characteristics...

El aumento de la producción de trucha en Perú genera gran cantidad de subproductos que generalmente no se reciclan, lo que causa gases de efecto invernadero, eutrofización cuando se arrojan al río, y aparición de plagas cuando se entierran.  Los procesos de hidrólisis y fermentación láctica permiten recuperar aminoácidos y nutrientes, los cuales pueden ser empleados como suplemento para la fertilización foliar de plantas. El objetivo de la investigación fue elaborar un fertilizante líquido utilizando subproductos de trucha (FLVT), caracterizarlo y evaluar la fitotoxicidad. El contenido total de aminoácidos fue de 3.2 g/100 g y el de proteína fue de 6.2 g/100 g; mientras el contenido de nitrógeno, fósforo y potasio fue de 12 040 mg/l, 1 189 mg/l, 5 540 mg/l, respectivamente. El fertilizante líquido no presentó E. coli ni Salmonella sp. Los contenidos de plomo, cadmio ...

El presente trabajo de investigación realizado en el músculo desmenuzado de pota tuvo por finalidad evaluar el proceso de hidrólisis con proteasa alcalina. Se utilizó ejemplares provenientes del puerto de Talara y se sometieron a un estudio comparativo entre el nivel de hidrólisis del músculo crudo y cocido. Se determinó que la utilización de la alcalasa 2.4 L para obtener hidrolizados proteicos en base a músculo de pota fue factible, obteniéndose como parámetros adecuados para el proceso: temperatura de 60 ºC, con un % (p/v) de 0,7 y pH de 6-8. Las características sensoriales del hidrolizado fue de un producto líquido de color blanco cremoso, no presentó olor ni sabor a pota y tampoco se detectó presencia de péptidos amargos. La composición química del hidrolizado fue: humedad 81,24 %, proteína total 15,98 %, ceniza 0,86 %, grasa 0,48 % y ELN 1,44 %. La proteína sol...

The extrusion process can be transferred to high Andean areas with the idea of generating value chains for the cultivation of Andean cereals and grains. An extruded product has been developed using cereals, Andean grains and pota protein concentrate (CPPo) to develop a nutritional bar that is well accepted by children from 5 to 10 years of age. The most acceptable product, qualified as a functional product, was made with 60.0% corn, 19.0% rice, 15.0% kiwicha and 6.0% CPPo, the main characteristic of which was the absence of pota odor and flavor. Subsequently, the nutritional bar was prepared using 57.5% of the extruded product and adding 27.5% sugar, 10.0% glucose and 5.0% grated coconut. In the proximal chemical composition of the nutritional bar, the content of proteins (9.56%), fats (3.10%), carbohydrates (79.49%), moisture (6.54%) and fiber (0.63%) are highlighted. The true digestibi...

The extrusion process can be transferred to high Andean areas with the idea of generating value chains for the cultivation of Andean cereals and grains. An extruded product has been developed using cereals, Andean grains and pota protein concentrate (CPPo) to develop a nutritional bar that is well accepted by children from 5 to 10 years of age. The most acceptable product, qualified as a functional product, was made with 60.0% corn, 19.0% rice, 15.0% kiwicha and 6.0% CPPo, the main characteristic of which was the absence of pota odor and flavor. Subsequently, the nutritional bar was prepared using 57.5% of the extruded product and adding 27.5% sugar, 10.0% glucose and 5.0% grated coconut. In the proximal chemical composition of the nutritional bar, the content of proteins (9.56%), fats (3.10%), carbohydrates (79.49%), moisture (6.54%) and fiber (0.63%) are highlighted. The true digestibi...