Tag Eugenio Bortone

La integridad física y la lixiviación de nutrientes de los alimentos acuícolas para camarón son aspectos importantes en su control de calidad. La estabilidad en el agua de los alimentos de camarón se evalúa a menudo de diversas maneras subjetivas. Este procedimiento analítico proporciona una línea de base para que el fabricante de alimentos acuáticos evalúe la calidad del producto. 

The physical integrity and nutrient leaching of shrimp aquafeeds are important aspects in their quality control. The water stability of shrimp aquafeeds is often evaluated in various subjective manners. This analytical procedure provides a baseline for the aquafeed manufacturer to assess product quality. 

Ingredients that are properly proportioned and mixed for an adequate mixing time are very important to assure the manufacturing of aquafeeds that meet the standards for the shrimp species and life stage for which the formula was designed. 

Assuring that aquafeed ingredients are processed properly into a high-quality product requires monitoring each manufacturing process through the proper in-line quality assurance, to produce a consistent quality continuously. 

Los tamaños adecuados de las partículas de ingredientes de alimentos acuícolas son establecidos por los requerimientos nutricionales de las especies objetivo y por el proceso de fabricación de alimentos utilizado. Para los tamaños adecuados de partículas de ingredientes, varias características son muy importantes, incluyendo la distribución de tamaño de partículas y la densidad de los gránulos o pellets. 

The proper feed particle sizes of aquafeed ingredients are established by the nutritional requirements of the species targeted and by the feed manufacturing process used. For proper ingredient particle sizes, various characteristics are very important, including particle size distribution and pellet density. 

A study was conducted using a Twin-Screw Extruder equipped with Specific Mechanical Energy (SME) and Density Control valves, to determine the effect of SME on the water stability of shrimp feeds. Further research is needed to evaluate the performance. 

Extrusion processing can be a better alternative to produce high quality-low- polluting shrimp feeds. Extruded pellets with high water stability can be produced by controlling the Specific Mechanical Energy (SME) and without the inclusion of artificial binders. New extruders are equipped with state-of-the art SME controls that permit the adjustment of the SME to the desired range, to produce soft very hydrostable pellets. 

Although their aquafeed manufacturing process features are similar, twin-screw extruders offer more operational flexibility than single-screw extruders. 

Aquafeed manufacturers can ensure quality by looking beyond price and with written ingredient specifications adhering to nutritional formulations. 

Evolving vacuum coaters can apply coatings to feed with up to 40 percent oil levels. It may soon be used to reduce inclusion levels of fat- and water-soluble vitamins in feeds. 

Antioxidants can be effective at controlling lipid oxidation in animal feeds and ingredients and should be added early in processing to limit free radicals. 

Quick heating can reduce degradation of flavor and nutrient content in aquafeeds. Microwave dryers dry a range of products uniformly. 

Analytical procedures, like measuring water stability of shrimp feed, performed at labs provide more consistent and quantitative results. 

In grinding aquaculture feed to proper particle sizes, parameters of consideration include particle size distribution and pellet density.