Universidad Nacional Agraria La Molina. Escuela de Posgrado. Maestría en Tecnología de Alimentos

Se elaboró un producto preformado congelado “listo para el consumo” a partir de músculo desmenuzado de bonito (Sarda chiliensis) con inclusión de quinua (Quenopodium quinoa willd), con la finalidad de darle mayor valor agregado al recurso y asi promover su consumo. Para ello se elaboraron nueve formulaciones y una muestra control solo con pescado; las variables de estudio fueron polifosfato (0,1 %, 0,3 % y 0,5 %), quinua (3 %, 6 % y 9 %), mantequilla y aceite (2 %, 4 % y 6 %) respectivamente. Para la evaluación sensorial se analizaron las muestras a través de un panel de 15 jueces semi entrenados y para la determinación de los parámetros de textura se utilizó un texturómetro, Brookfield-Farnell QTS – 25. Los resultados de los estudios indicaron que el polifosfato al 0,5 %, quinua al 6 % y mantequilla 4 % mejoraron la textura en función de la jugosidad y sabor del producto...

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.

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...

Anchovy (Engraulis ringens) fillets obtained from traditional salt-ripened for 8 weeks showed 26.9 mg/100g total volatile bases nitrogen (TVB-N), 2.9 mg/100g trimethylamine, 7.1, proteolytic activity index, 3.3% hydrolysis degree, 2.6 mg malonaldehyde/kg (TBA test) and 22.4 g KOH/100g total ester index. Water activity (Wa) values suggest osmotic equilibrium at 8th week (0.743±0.007). Physicochemical changes when fillets were vacuum-packed and stored for 14 weeks at 8°C/20°C were 32.4 / 75.7 TVB-N; 3.3 / 4.2 mg trimethylamine /100g; 9.8 /13.2 proteolytic activity index; 4.2 / 7.4% hydrolysis degree; 17.9/6.5 mg malonaldehyde/kg; and 20.1 / 21.7 total ester index respectively. Sensory scores corresponded to attractive reddish color and soft pleasant aroma of the product until 18th week at both temperatures, at the end of the study unpleasant odors corresponding to non-typical ripened fi...