Method for extracting oil and short-peptide from sesame seeds through aqueous enzymatic method

A water enzymatic method and oil extraction technology, which is applied in the direction of fat oil/fat production, fat production, etc., to achieve the effect of shortening the process route, increasing added value, and increasing supply rate

Inactive Publication Date: 2013-05-15
HENAN UNIVERSITY OF TECHNOLOGY
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Problems solved by technology

[0004] As mentioned above, the reported sesame water enzymatic processing technology only involves the extraction of sesame oil and sesame protein, and there is no related report on the simultaneous extraction of sesame oil and sesame short peptide , and generally need to break the emulsion to improve the oil yield

Method used

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  • Method for extracting oil and short-peptide from sesame seeds through aqueous enzymatic method

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Embodiment 1

[0031] The peeled sesame seeds are roasted in a roasting machine at a roasting temperature of 160°C and a roasting time of 15 minutes. After baking, the sesame seeds are further ground into a slurry using an emery plate mill. Disperse the sesame pulp in 5 times the weight of water, adjust the pH of the system to 9.5, temperature 55°C, and alkali dissolving time 30min. After the alkali dissolution was completed, 2.0% (w / w) of Protex 6L alkaline protease was added to the system to start enzymatic hydrolysis, and the temperature was maintained at 55°C. After 4h, the temperature of the system was increased to 90°C to inactivate the enzyme (10min). Immediately after the enzyme inactivation, a three-phase decanter is used to separate the system while it is hot to obtain free oil, hydrolyzed liquid phase and residue. After spray drying the hydrolyzed liquid phase, sesame peptide powder is obtained.

[0032] The yield of free oil is 88%, the yield of sesame short peptide is 80%, the pu...

Embodiment 2

[0035] The peeled sesame seeds are roasted in a roasting machine at a roasting temperature of 180°C and a roasting time of 10 minutes. After baking, the sesame seeds are further ground into a slurry using an emery plate mill. Disperse the sesame pulp in 4 times the weight of water, adjust the pH of the system to 9.0, the temperature is 60°C, and the alkali dissolution time is 30 minutes. After the alkali dissolution was completed, 1.5% (w / w) of Protex 6L alkaline protease was added to the system to start enzymatic hydrolysis. The temperature was maintained at 60°C. After 5h, the temperature of the system was increased to 85°C to inactivate the enzyme (20min). Immediately after the enzyme inactivation, a three-phase decanter is used to separate the system while it is hot to obtain free oil, hydrolyzed liquid phase and residue. After spray drying the hydrolyzed liquid phase, sesame peptide powder is obtained.

[0036] The yield of free oil was 86%, the yield of sesame short pepti...

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Abstract

The invention discloses a method for extracting oil and short-peptide from sesame seeds through an aqueous enzymatic method, belongs to the technical field of agricultural product fine processing and comprehensive utilization of by-products of agricultural product fine processing, and mainly aims at the technical problems that the short-peptide in the sesame seeds can not be obtained by the existing aqueous enzymatic oil preparation technology of sesame seeds, emulsion is generated easily, and the like. The method for extracting oil and short-peptide comprises the steps of: baking hulled sesame seeds, then grinding the sesame seeds, carrying out alkali dissolution after adding water for adjusting alkali, and then adding protease for enzymolysis; after finishing enzymolysis, carrying out high-temperature enzyme deactivation; and then carrying out three-phase centrifugation at a high temperature, thereby directly obtaining free oil and sesame seed peptide. When the sesame seeds are processed by adopting the method for extracting oil and short-peptide, the generation of emulsion can be basically avoided and the obtained oil is good in flavor and quality; and the sesame seed peptide is small in relative molecular mass and is excellent in dissolubility, wherein small peptide components with relative molecular mass being smaller than 1000 accounts for over 90%; as an excellent functional ingredient, the sesame seed peptide can be widely applicable to food processing.

Description

[0001] technical field [0002] The invention discloses a method for extracting oil and short peptides from sesame by an aqueous enzymatic method, which belongs to the technical field of deep processing of agricultural products and comprehensive utilization of by-products. Background technique [0003] Sesame is not only rich in oil, but also a good protein resource. The oil content in sesame seeds is 45-63%, and the protein content is 19-30%. At present, almost all of our country uses high-temperature roasting process to produce sesame sesame oil. Some of them use traditional high-temperature fried seeds, stone-milled sauce, mixed with water, manual stirring, and small-milled sesame oil from gourd pier, or use improved grinding wheel to grind the sauce, The small ground sesame oil that is mechanically stirred with water and shaken off is called the water substitution method; there is also sesame flavor oil that is made by frying seeds at high temperature and mechanically...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/00C11B1/04A23J3/34
Inventor 章绍兵吕燕红陆启玉
Owner HENAN UNIVERSITY OF TECHNOLOGY
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