65 results about "Extrusion cooking" patented technology

Improved extruders and methods for the extrusion cooking of comestible products such as human foods or animal feeds are provided wherein the products may be produced with very low specific mechanical energy (SME) inputs as compared with conventional processing. The methods preferably involve introduction of very high levels of steam into the extruder barrel (12) during processing, which concomitantly reduces necessary SME inputs required to achieve desired cook and expansion levels in the products. In accordance with the invention, fully-cooked pet foods can be fabricated with SME inputs of up to about 18 kWhr/T, whereas aquatic feeds can be fabricated with SME inputs of up to about 16 kWhr/T. In preferred forms, the extruder (10) includes specially configured, intermeshed extrusion screws (18, 20) and a plurality of obliquely oriented steam inlets (48, 50), and an upstream, dual-shaft preconditioner (90) is used having individual variable frequency drives (98, 100) which allow infinite variablility in the speed and rotational direction of the preconditioner shafts (94, 96).

The invention discloses a method for preparing homogeneous tomato sauce with high dietary fiber content, which belongs to the technical field of comprehensive utilization of agricultural and sideline products. The method is implemented mainly by the steps of deodorizing bean dregs, and performing alkali liquor treatment, enzymolysis, decoloring, drying, extrusion cooking, drying and super micro milling to prepare super micro milled bean dreg dietary fiber flour for the preparation of the homogeneous tomato sauce with high viscosity and the high dietary fiber content. The method has the advantages that: 1, the high-activity soybean dietary fiber flour can be prepared from the bean dregs by performing the alkali liquor treatment, the enzymolysis, the extrusion cooking and the super micro milling, and has remarkably increased soluble dietary fiber content, remarkably improved water absorptivity and remarkably improved cation exchange capacity; 2, when used for preparing the tomato sauce,the soybean dietary fiber flour treated by the processes is homogenized by a 30 MPa homogenizer so as to make a sauce body more uniform and stable, increase the viscosity and health care value of thetomato sauce and improve the water absorptivity of the tomato sauce; and 3, the utilization of the bean dregs changes the conventional way of utilizing the bean dregs as feeds so as to reduce environmental stress at the same time of realizing reutilization.

Improved extruded starch-bearing grain products (e.g., corn and wheat) are provided having relatively high cook values and low cold water viscosities. The products are prepared by initial preconditioning to partially cook the starting material(s), followed by low shear extrusion cooking, with a total STE/SME ratio of at least about 4.

An improved short-length, high-speed extrusion device (10) is provided with having increased capacities and the capability of producing high quality extrudates with improved density and pellet integrity properties. The device (10) includes an extruder (14) equipped with a peripheral die (20,118), the latter having die outlet openings (100,120) oriented generally transverse to the longitudinal axis of the extruder barrel (16). The die (20) has a plurality of axially spaced series (92-98) of openings (100), wherein each series (92-98) has a different number of openings (100). Alternately, the die (118) is of radially enlarged design relative to the extruder barrel (16) and has only a single series of openings (120). In both instances, an internal flow-directing bullet (108,140) is positioned within the corresponding die (20,118) in order to smoothly direct flow of product from the outlet (21) of the barrel (16) to the transversely oriented die outlet openings (100,120).

The invention belongs to a processing method, a processing apparatus and saccharification method of starch sirup material of the extrusion cooking additive enzyme preparation in the starch sugar process. The main technical characteristics are: providing extrusion cooking apparatus of amylum sirup material of the additive enzyme preparation, the best parameter of the extrusion cooking system and glycation method of using the extrusion cooking starch sugar, smoothening the saccharification, and filtration of the saccharification liquid. Compared to present starch sirup production by using two kinds of enzyme not extrusion cooking starch sirup material, the invention reduces the saccharification time to 1/2 to 1/3 when achieving the same saccharification liquid DE value by not extrusion cooking starch sirup material.

A process for removing alkaloid and peculiar smell caused by trimethylamine from konjak starch includes squeezing and digestion steps. Its advantages are simple process, low cost and no pollution. The resultant konjak starch can be used for food, adhesive, feed, etc.

The present invention utilizes extrusion and steaming technology and superfine crushing technology in denaturing treatment of alfalfa food fiber. Especially, the screw structure in the double screw extruder is improved from available four section structure into six section distribution structure including material feeding section, smelting section, the first extruding section, homogenizing section, the second extruding section and reverse retarding section. The said technology can obtain alfalfa food fiber with high physiological activity and raise the technological stability of double screw extruder.

The invention relates to a method for preparing red and square probiotic fermented bean curds by using bean dregs as a raw material, and belongs to the technical field of fermented food. The bean dregs and yellow slurry are adopted as raw materials to prepare the red and square probiotic fermented bean curds, an extrusion cooking technology and an ultra-fine crushing technology are utilized to improve the gel characteristics of protein in the bean dregs and refine dietary fiber in the bean dregs, and the technical problem of the rough texture of bean dregs fermented bean curds is solved; an ultrasonic pre-treatment technology and a glutamine transaminase cross-linking technology are combined so as to further enhance the gel properties of the protein and give a delicate sensory characteristic to blocks of the fermented bean curds, the formability of the bean dregs fermented bean curds is enhanced through the characteristic that mucopolysaccharide is produced by a starter strain, and meanwhile probiotic fermentation is utilized to give certain probiotic characteristics to the bean dregs fermented bean curds, so that a new product is obtained; and the problem of recycling of by-products which are produced during bean curd production is solved, high-value utilization of the bean dregs and yellow slurry is achieved, the added value of by-products of soybean products is improved, waste emission is reduced, environmental protection is achieved, and the production cost of the bean curds is reduced.

The invention discloses a coating vermicelli used for coating food, and a production method thereof. According to the production method, cereal powder or a mixture containing cereal powder and food additives is taken as a raw material; the raw material is subjected to extrusion cooking, is subjected to extrusion using a mould, and then is cut using a turning cut blade so as to obtain the coating vermicelli. The length of the coating vermicelli ranges from 5 to 50mm, the diameter of the coating vermicelli ranges from 0.1 to 6mm, and the water content of the coating vermicelli ranges from 8 to 16wt%. The length and the diameter of the coating vermicelli are preferable; the water content is low; room temperature transportation can be realized; the appearance of products coated with the coating vermicelli is novel, the mouthfeel is crisp, the kind is various, application range is wide, the coating vermicelli can be used for coating fried food, can be used for coating aquatic products, meat products, and vegetable products instead of conventional vermicelli products (spring roll vermicelli). Operation of coating of food with the coating vermicelli is simple; equipment production can be realized; and production efficiency is increased.

A nutritionally suitable, semi-moist animal foodstuff which is similar to natural animal food meats and having a very high meat content is provided, which has good acceptance with the animal food animal and a corresponding structure. The semi-moist animal food product does not need cereal contents, cereal products and binders. The novel semi-moist animal food product is produced by extrusion cooking, wherein the extruder is charged at least with the following ingredients: a) at least one component of the group dry meat, meat meal, dry fish, fish meal, b) meat and/or fish, c) optionally water or steam, where not introduced by or in combination with a) or b). Components a), b) and c) together make up at least 80% by weight of the ingredient mass. In addition, additives, such as flavourings, probiotics and the like can be present.

This invention discloses processing method, processing apparatus and saccharification method for beer adjunct added with enzyme preparation by squeezing and cooking. This invention provides squeezing and cooking apparatus for adding enzyme preparation to beer adjunct, reasonable parameters of squeezing and cooking system for adding enzyme preparation to beer adjunct, and saccharification method for beer adjunct added with enzyme preparation. During the saccharification process, the mash of beer adjunct added with enzyme preparation has such advantages as adequate starch degradation, short saccharification time, and high extract yield. Compared with the present double-mash saccharification method and enzyme addition saccharification method, the method in this invention omits beer adjunct cooking and pasting process and apparatus, and adds malt powder and beer adjunct powder or mince added with enzyme preparation into the water in the saccharification pot simultaneously for saccharification, which can save energy, lower cost, and increase beer productivity.

The invention discloses fish meat rice noodles which comprise the following raw materials by weight: 10%-30% of fish meat protein, 30%-60% of rice and 10%-30% of water, wherein the rice is fermented by lactic acid bacteria. The preparation method comprises the following steps: (1) soaking 30%-60% of the rice in 10%-30% of water at room temperature for 10-48 hours; (2) grinding the soaked rice by a grinding machine; (3) heating rice paste to 30-50 DEG C and inoculating the lactic acid bacteria under the pH value of 5-6.5 for fermenting until the pH value of the rice paste is 2-6; (4) mincing 10%-30% of fish meat at 0-4 DEG C; (5) uniformly mixing the minced fish meat with the fermented rice paste, and processing by a chopper for 30-300 minutes; (6) extruding chopped fish meat rice paste by an extrusion cooking type rice noodle machine at 80-90 DEG C to form strips, and ageing and drying by a conventional method.

The invention discloses a preparing method for peeled puffing full-fat soybean meal capable of substituting fish meal and belongs to the field of processing methods for soybean feed to solve the problem that the demanding amount of fish meal is increased day by day, and a substitutable product urgently needs to be sought in market. The preparing method comprises the steps of peeling, air sorting, grinding, conditioning, extrusion cooking, cold air cooling, finished product packaging and the like. The preparing method is used for preparing the peeled puffing full-fat soybean meal capable of substituting fish meal.

An extrusion molding process for a pore-free PVC pipe is characterized in that according to a pipe formula, a PVC resin and epoxy resin copolymer, an impact modifier, a stabilizer, a processing modifier, a filling agent, a pigment and an outer lubricant are adopted, and the extrusion molding process specifically comprises the following steps of preparing of various materials, weighing, kneading, extrusion pelleting, extrusion molding, cooling molding, cutting, checking and obtaining of a finished product. The plastic pipe has remarkable beneficial effects that the relative density is small and is 1/4-1/7 that of metal; the electric insulation property and the chemical stability are excellent; installation and construction are convenient, and maintaining is easy; the unit energy consumption is low, in the process of extrusion, conditions are provided for molding through constant changing for the temperature, expanding with heat and contracting with cold are carried out several times, and the materials can be combined more tightly through contracting and expanding; and cooling is carried out through cooling liquid, paraffin in the cooling liquid can rapidly fill up pores, and after molding, a pore-free state is achieved.

A thermoplastic squeezing and steaming and boiling technique for preparing simulative meat from the leftover of different kinds of animal meat or the muscle tissue of aquatic animals is disclosed.