Method for extracting sesame oil

An extraction method, sesame oil technology, applied in the direction of fat oil/fat production, fat production, etc., can solve the problems of waste of sesame protein resources, low yield of sesame oil, deep color of sesame oil, etc., to avoid serious denaturation, avoid dark color, equipment simple effect

Inactive Publication Date: 2012-07-11
NORTHEAST AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There are many problems in the traditional process, such as deep color and poor transparency of sesame oil, and serious denaturation or damage of sesame protein, resulting in sesame cake and slag can only be used as low-cost feed, resulting in a lot of waste of sesame protein resources; although the low-temperature cold pressing process overcomes The problem of poor oil quality and protein waste in some traditional processes has been solved, but the yield of sesame oil is not high

Method used

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  • Method for extracting sesame oil
  • Method for extracting sesame oil
  • Method for extracting sesame oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Example 1 Screening experiment of optimal parameters for sesame extrusion and puffing

[0045] 1 Materials and methods

[0046] 1.1 Materials and reagents

[0047] Sesame Yuzhi No.11

[0048] protex-7L neutral endoprotease Danish novo company

[0049] 1.2 Main instruments and equipment

[0050]

[0051]

[0052]1.3 Experimental method

[0053] 1.3.1 Composition determination of sesame

[0054] Refer to GB / T 5528-2008 for the determination of moisture and volatile matter content; refer to GB / T 5505-2008 for the determination of ash content; refer to GB / T 14489.2-2008 for the determination of crude protein content; refer to GB / T 5512-2008 for the determination of crude fat content; Determination of sugar content, Fehling's reagent method; Determination of crude fiber: according to GB / T22224-2008.

[0055] 1.3.2 Process flow

[0056] Sesame→peeling→extrusion and puffing→adjusting the ratio of material to liquid (1:6)→wet milling→adjusting pH value and temperat...

Embodiment 2

[0088] Example 2 Optimum parameter optimization experiment of enzymatic hydrolysis process of extrusion puffed pretreated white sesame

[0089] Based on the optimal extrusion and expansion pretreatment process determined in Example 1, a single factor enzymolysis test was carried out to determine each enzymolysis process parameter (enzymolysis temperature, enzymolysis pH, enzyme amount, solid-liquid ratio, enzymolysis time) range. Taking the oil extraction rate as the investigation index, a response surface design experiment with 5 factors and 5 levels was carried out.

[0090] 1.1 Materials and reagents

[0091] Sesame Yuzhi No.11

[0092] protex-7L neutral endoprotease Danish novo company

[0093] 1.2 Main instruments and equipment

[0094]

[0095] 1.3 Experimental method

[0096] 1.3.1 Composition determination of sesame

[0097] Refer to GB / T 5528-2008 for the determination of moisture and volatile matter content; refer to GB / T 5505-2008 for the determination of a...

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Abstract

The invention relates to a method for extracting sesame oil and fat, which comprises the following steps: extruding and puffing sesames in a single-screw extruder, recovering oil and fat by using a pressing cage and obtaining squeezed sesame oil; mixing the extruded and puffed sesames with water, grinding the mixture on a wet grinder to obtain mixed solution, adding protease into the mixed solution for enzymolysis to obtain enzymatic solution; and deactivating enzyme in the enzymatic solution, performing centrifugal separation, and obtaining free sesame oil and fat. According to the invention, the sesame oil and fat are separated by an aqueous enzymatic process which combines extruding and puffing pretreatment and biological enzyme, the equipment is simple and safe for operation and can produce high-quality sesame oil with high nutrition value and low-denaturation high-quality sesame proteins and peptides. According to the results of test and comparison tests, the method can achieve a total oil extraction rate of about 93.18 percent under an enzymatic process condition, and can achieve a higher total oil extraction rate of about 97.98 percent.

Description

technical field [0001] The invention relates to a method for extracting vegetable oil, in particular to an extraction method for sesame oil, and belongs to the field of extraction and processing of vegetable oil. Background technique [0002] At present, there are two main extraction techniques for sesame oil: one is the traditional way of roasting sesame seeds at high temperature, and then using water substitution method or pressing method to produce sesame oil; the other is the low-temperature cold pressing process that is initially used in production sesame oil. There are many problems in the traditional process, such as the deep color and poor transparency of sesame oil, and the serious denaturation or damage of sesame protein, resulting in sesame cake and residue can only be used as low-cost feed, resulting in a lot of waste of sesame protein resources; although the low-temperature cold pressing process overcomes The problem of poor oil quality and protein waste in som...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/00C11B1/04C11B1/06
Inventor 江连洲李杨王辰齐宝坤程建军
Owner NORTHEAST AGRICULTURAL UNIVERSITY
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