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A method for extracting oil from hemp seeds by water enzymatic method and a hemp seed protein drink

A protein drink, hemp seed technology, applied in the production of fat/fat, fat production, food science, etc., can solve the problems of insufficient liquid phase utilization, low yield of clear oil, serious emulsification, etc., and reduce the burden of demulsification process. , The quality of crude oil is good, and the effect of reducing economic costs

Active Publication Date: 2017-07-11
ACAD OF NAT FOOD & STRATEGIC RESERVES ADMINISTRATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] An object of the present invention is to provide a method for extracting oil from hemp seeds by an aqueous enzymatic method, which can overcome the severe emulsification, cumbersome demulsification, low yield of clear oil, and poor utilization of the liquid phase in the prior art. Sufficient problem, this method is an enzymatic oil extraction technology with high oil yield without emulsification or microemulsion

Method used

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  • A method for extracting oil from hemp seeds by water enzymatic method and a hemp seed protein drink

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Weigh 2kg of shelled hemp seeds, coarsely pulverize and extrude and expand, the die aperture is 8mm, the rotating speed of the extruder is 90rpm, the rotating speed of the feeder is 200rpm, the casing temperature is 60°C, and the moisture content of the material after extrusion is 9.6%;

[0051] Take the extruded and puffed hemp seeds, coarsely pulverize them with a pulverizer, and then grind them with a mill until the particle size is ≤50 μm, weigh 1kg, add 4L of deionized water, stir evenly, adjust the pH of the system to 8.5, and the temperature is 60 ℃, extract for 35min;

[0052] Regulate system pH to 8.5 then, add alkaline protease Alcalase 2.4L (add-on is the 2% of the hemp seed weight after extrusion puffing), after acting for 4 hours, add neutral protease Alphalase (add-on is after extrusion puffing 0.5% of the weight of the hemp seed), stirred and enzymolyzed for 3h to obtain the enzymolyzate;

[0053] Raise the temperature of the obtained enzymolysis solutio...

Embodiment 2

[0056] Weigh 3kg of shelled hemp seeds, carry out extrusion and puffing after coarse crushing, the die aperture is 6mm, the speed of the extruder is 70rpm, the speed of the feeder is 175rpm, the casing temperature is 55°C, and the water content of the material after extrusion is 6.2%;

[0057] Take the extruded and puffed hemp seeds, coarsely pulverize them with a grinder, and then grind them with a mill until the particle size is ≤50 μm, weigh 500 g, add 1.5 L of deionized water, stir evenly, adjust the pH of the system to 8.0, and the temperature is 60°C, extract for 30min;

[0058] Adjust the pH of the system to 8.5, add Alcalase 2.4L with 1% weight of extruded and expanded hemp seeds and neutral protease Alphalase with 1% weight of extruded and expanded hemp seeds, and stir slowly for 6 hours;

[0059] Raise the temperature of the system to 95°C and maintain it for 5 minutes to inactivate the enzyme, centrifuge at 4500 rpm for 15 minutes, and the enzymolysis liquid is divi...

Embodiment 3

[0062] Take by weighing 5kg shelled hemp seeds, carry out extrusion puffing after coarse pulverization, die aperture 6mm, extruder rotating speed 80rpm, feeder rotating speed 188rpm, casing temperature is 70 ℃, and the material moisture content after extrusion puffing is 7.8%;

[0063] Take the extruded and expanded hemp seeds, coarsely pulverize them with a pulverizer, and then grind them with a mill until the particle size is ≤50 μm, weigh 1.5kg, add 7.5L deionized water, and adjust the pH of the system to 8.0 after stirring evenly. at 60°C, extract for 30 minutes;

[0064] Adjust the pH of the system to 9.0, add 1.5% of the weight of the hemp seed Alcalase 2.4L and 1% of the neutral protease Alphalase, and stir slowly for 5 hours;

[0065] The temperature of the system was raised to 95°C and kept for 5 minutes to inactivate the enzyme, centrifuged at 4500 rpm for 15 minutes, and the enzymolysis liquid was divided into three layers: clear oil, liquid phase and residue; the y...

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Abstract

The invention discloses an aqueous enzymatic method for extracting oil from hemp seeds. The method comprises the steps of extruding and puffing, extracting hemp protein and oil, enzymatic hydrolysis, and centrifuging to inactivate the enzyme; free oil, liquid phase and centrifugation are obtained after centrifugal separation. The hemp seed slag and the free oil are filtered and dehydrated to obtain the hemp seed oil, and the slag is used as a feed material. The present invention also provides a hemp seed protein beverage. The raw material of the beverage is the recovery and utilization of the liquid phase by-products of the oil and fat in the hemp seed extracted by the aqueous enzymatic method. obtained after sterilization. The protein content of this product is between 3% and 8%. Compared with other commercially available hemp drinks, the amount of additives in this product is greatly reduced, and it has natural plant flavor.

Description

technical field [0001] The invention relates to the technical field of extraction processing. More specifically, it relates to a method for extracting oil from hemp seeds by aqueous enzymatic method and a protein drink from hemp seeds. Background technique [0002] Hemp seed is the shelled product of hemp seeds, with a fat content of 43% to 48%. In addition to oil, it also contains about 30% protein, about 5% sugar, and rich calcium, phosphorus, iron, zinc, and manganese. Wait. The content of unsaturated fatty acid in hemp seed oil is more than 85%, especially the content of linolenic acid is higher, more than 16%. The ratio of linoleic acid to linolenic acid (ω-6):(ω-3) is close to 3:1, which meets the internationally recognized nutritional ratio standard; hemp seed oil can improve the activity of enzymes such as SOD / GSH-Px, and remove DPPH free The capacity of the base exceeds that of olive oil and is suitable as an antioxidant dietary resource. The main amino acids of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11B1/00C11B1/04A23L2/38A23L2/66A23L2/60
CPCA23L2/38A23L2/60C11B1/00C11B1/04A23V2002/00A23V2250/628A23V2250/606
Inventor 王瑛瑶李秀娟栾霞何少卿方冰
Owner ACAD OF NAT FOOD & STRATEGIC RESERVES ADMINISTRATION
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