Notes

Snack Food Extruder Machine
DESCRIPTION OF THE INVENTION Referring to the FIGURE, an oilseed is comminuted in a comminution stage 10 within the presence of an extraction resolution. Furthermore, there may be a residual off-flavor as a result of hydrocarbon solvent. In addition, the use of hydrocarbon solvents results in processing difficulties because of the flammable and explosive nature of the solvents and air pollution problems related to hydrocarbons. A process as claimed in claim 38 whereby the comminuted oilseed/extraction solution mixture has a pH from about eight.5 to about 9. A process as claimed in claim 38 wherein the comminuted oilseed/extraction solution mixture has a pH from about eight to about 10. A course of as claimed in declare 17 whereby the comminuted oilseed/extraction resolution mixture has a pH less than about 11.
If a powder product is desired, the extract may be concentrated and spray dried using typical means to yield a stabilized, full fat, excessive protein powder. This powder can be instantized using typical means to improve the powder's dispersibility in aqueous solutions. biscuit production machine of as claimed in claim 38 whereby the step of clarifying contains the step of centrifuging. A process as claimed in declare 38 whereby the extraction answer temperature is no much less than about 205° F. A course of as claimed in declare 38 whereby the oilseed is soy beans.
The purposes of the soaking are to maximise the quantity of the nutritional parts extracted from the oilseed feed, to destroy anti-nutritional elements similar to anti-trypsin within the seed material, and to destroy lipoxidase. If soaking times lower than about 1 minute are used, the yield tends to lower and there is inadequate destruction of the lipoxidase. If soaking times greater than about 20 minutes are used the product tends to develop an off taste from hydrolysis of the lipids. Also, greater soaking times require elevated capital for bigger quantity soaking equipment.
SUMMARY OF THE INVENTION I actually have now invented a process for producing an edible extract from oilseeds with the above options. The process is particularly passable when complete soy beans or entire peanuts are the supply seed materials. A course of as claimed in declare 38 wherein the comminuted oilseed is soaked within the extraction answer for from about 3 to about 7 minutes. A process as claimed in claim forty two comprising the extra step of dehulling the soy beans earlier than comminuting.
Analysis of the powder is shown in Table 1. Although this hydrocarbon solvent extraction technique has achieved commercial success, it's not with out disadvantages. The current invention has been described with reference to a preferred embodiment. However other variations of this course of are equally appropriate to practice this invention.
A course of as claimed in declare 17 whereby the step of clarifying contains the step of centrifuging. A process as claimed in declare 17 wherein the extraction answer temperature is at least about 205° F. A course of as claimed in claim 17 wherein the oilseed is soy beans. A process as claimed in declare 1 wherein the step of clarifying comprising the step of centrifuging.
The remainder of the process contains steps for concentrating and stabilizing the extracted carbohydrates, lipids and proteins within the extraction solution. This involves clarifying the neutralized comminuted oilseed/extraction solution mixture in the clarification stage 14. Clarification may be accomplished before neutralization. A centrifuge is helpful for accomplishing the clarification step. Sludge, which consists primarily of the fibrous component of the oilseed is the byproduct of the clarification step.
food extruder as claimed in declare 38 comprising the additional step of instantizing the powder. A process as claimed in claim 17 whereby the extraction solution accommodates sodium hydroxide. A process as claimed in declare 17 comprising the additional step of instantizing the powder. A process as claimed in claim 1 wherein the extraction answer contains sodium hydroxide. A process as claimed in claim 3 comprising the extra step of instantizing the powder.
A process as claimed in claim 1 whereby the extraction resolution temperature is at least about 205° F. A process as claimed in claim 1 whereby the oilseed is soy beans. If a product in a powder kind is desired, the clear extract from the cooling stage 18 may be despatched to the focus stage 20 and the spray drying stage 22. When the powder is intended to be used with liquids, it can be instantized in the instantizing stage 24. The extract is then cooled in the cooling stage 18 to prevent degradation of the seed materials extracts.
Extraction answer on the fee of 4.0 gallons per minute was fed to the Fitz mill. The extraction solution was prepared by chlorinating 300 gallons of water to 0.01% and including 1.1 liters of 50% sodium hydroxide to the water. The extraction liquid containing the comminuted soy beans was pumped through 147 feet of two inch stainless-steel holding tubing giving about 5 minutes residence time to complete the extraction. This liquid had a ultimate temperature of 195° F and a pH of 8.5. The incontrovertible fact that the product of this process has excessive stability during storage is stunning in gentle of the commonly held perception that exposing lipids to a sizzling alkaline answer ends in saponification of the lipids.
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