By Mian N. Riaz
Authored by way of best specialists, this ebook presents responses to over three hundred of the main frequently-asked questions about extrusion processing of nutrients, dog food and feed items. the amount is in a different, functional question-and-answer layout and the enquiries are grouped into sections, making it effortless for readers to discover the knowledge they require speedy. themes coated comprise terminology on the subject of foodstuff extrusion, elements of an extrusion procedure, picking out an extruder, the affects of uncooked fabrics at the extrusion approach, universal difficulties at diverse phases of extrusion processing and customary difficulties while utilizing unmarried screw and dual screw extruders, between others.
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Extra info for Extrusion problems solved: Food, pet food and feed
Should the food, aquatic feed or pet food be multi-colored or center-filled with some other ingredients? • What is the target bulk density of the food, pet food, aquatic and livestock feed to be made on the extruder? • What is the desired production rate of the food, pet food, aquatic and livestock feed? • The size of an extruder depends on the market size since extruders function best when operating at full throughput per hour. • What will be the source of energy for the food, pet food, aquatic and livestock feed extruder?
Feed International, Watts Publications, Watt Publishing Co, Rockford, Illinois. Feed Management, Watts Publications, Watt Publishing Co, Rockford, Illinois. Food Processing, Putnam Publications, Itasca, Illinois. Food Technology, Institute of Food Technologists, Chicago, Illinois. International Aquafeed Directory, Turret RAI, United Kingdom. Petfood Industry, Watts Publications, Watt Publishing Co, Rockford, Illinois. Prepared Foods, Cahners Food Group Publications, Oak Brook, Illinois. © Woodhead Publishing Limited, 2012 Components of a food or feed extrusion system 37 What is a feeder?
Metering sections. There can be a gradual decrease in the screw flight depth in the direction of die in this section. 47 What is the metering section of the barrel? This section is nearest the discharge end of the extruder. The main function of the metering section is to increase the shear rate and cooking of the raw material and to ‘meter’ or uniformly feed the product into the die area. This section may have a very shallow flight screw (see Fig. 6). 48 What is a barrel liner? The removable sleeve within the barrel section is called the liner.
Extrusion problems solved: Food, pet food and feed by Mian N. Riaz