Grape seed oil and preparation method thereof

A technology of grape seed oil and grape seed powder, which is applied in the direction of fat oil/fat refining, edible oil/fat, fat oil/fat production, etc. Effect

Active Publication Date: 2018-07-17
INFINITUS (CHINA) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, there are relatively few studies on the active ingredients of grape seed oil produced by enzymatic hydrolysis, and the phenolic substances in grape seed oil are its main antioxidant substances, which are most likely to be oxidized and degraded during the enzymatic hydrolysis process

Method used

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  • Grape seed oil and preparation method thereof
  • Grape seed oil and preparation method thereof
  • Grape seed oil and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] Embodiment 1. The influence of mixed enzyme types and additions on the extraction of grapeseed oil

[0063] (1) Grape seed pretreatment: The grape seeds are pulverized by a universal mill and passed through a 50-mesh sieve to obtain the raw material of grape seed powder. %, and the fiber content is 30.6%.

[0064] (2) Enzymatic hydrolysis with mixed enzymes: Mix distilled water and grape seed powder in a volume-to-mass ratio of 5 (mL): 1 (g) to obtain a slurry, add hydrochloric acid to adjust the pH of the slurry to 5, and add mixed enzymes for enzymatic hydrolysis. The hydrolysis reaction temperature was 50 °C, the enzymatic hydrolysis reaction time was 2 h, and the addition scheme of the mixed enzyme was shown in Table 1;

[0065] (3) Acid protease enzymatic hydrolysis: add hydrochloric acid to the slurry, adjust the pH to 4.5, and add acid protease for enzymatic hydrolysis, the addition amount is 0.1%, the enzymatic hydrolysis reaction temperature is 50 ℃, and the e...

Embodiment 2

[0071] Example 2 Effects of protease types and additions on the extraction of grapeseed oil

[0072] (1) Grape seed pretreatment: The grape seeds are pulverized by a universal mill and passed through a 50-mesh sieve to obtain the raw material of grape seed powder. %, and the fiber content is 30.6%.

[0073] (2) Mixed enzyme enzymolysis: Mix distilled water and grape seed powder in a volume-to-mass ratio of 5 (mL): 1 (g) to obtain a slurry, add hydrochloric acid to adjust the pH of the slurry to 5, and add 1% mixed enzyme ( The ratio of cellulase: pectinase: hemicellulase: xylanase is 0.6:0.1:0.2:0.1), the enzymatic hydrolysis reaction temperature is 50°C, and the enzymatic hydrolysis reaction time is 2h;

[0074] (3) Protease hydrolysis: add protease for enzymolysis, the enzymolysis reaction temperature is 50°C, the enzymolysis reaction time is 2h, and the amount of protease added and pH are shown in Table 2.

[0075] (4) lye extraction: sodium hydroxide and distilled water ...

Embodiment 3

[0080] Example 3 Effects of acid protease hydrolysis temperature, time and pH on extraction of grapeseed oil

[0081] (1) Grape seed pretreatment: The grape seeds are pulverized by a universal mill and passed through a 50-mesh sieve to obtain the raw material of grape seed powder. %, and the fiber content is 30.6%.

[0082] (2) Mixed enzyme enzymolysis: Mix distilled water and grape seed powder in a volume-to-mass ratio of 5 (mL): 1 (g) to obtain a slurry, add hydrochloric acid to adjust the pH of the slurry to 5, and add 1% mixed enzyme ( The ratio of cellulase: pectinase: hemicellulase: xylanase is 0.6:0.1:0.2:0.1), the enzymatic hydrolysis reaction temperature is 50°C, and the enzymatic hydrolysis reaction time is 2 h.

[0083] (3) Enzymatic hydrolysis with acid protease: add hydrochloric acid to the slurry, and add acid protease for enzymatic hydrolysis, and the addition amount is 1%. The enzymatic hydrolysis temperature, enzymatic hydrolysis time and pH of acidic proteas...

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Abstract

The invention belongs to the field of food processing, and discloses grape seed oil and a preparation method thereof. The preparation method employs a composite plant hydrolase and acidic protease step-by-step hydrolysis method to extract the grape seed oil, active components in the grape seed oil are greatly kept, especially a polyphenol content, and the recovery rate of the grape seed oil is considered. Compared with the grape seed oil prepared by squeezing or leaching, the active components in the grape seed oil are greatly kept, the prepared grape seed oil is clarified and transparent, andcan be used as a high-grade health-care oil. The preparation method has the advantages that time consumption is short, cell walls of grape seed cells can be effectively destroyed, grease in the cellscan be easily extracted, and the recovery rate of the grape seed oil is effectively increased. By employing an alkali extraction method for demulsification, solvent residue is avoided, an acid valueof the grape seed crude oil can be effectively reduced by 0.168 (KOH)/(mg/g), an alkali refining process at a later period is not required, the method has the advantages of simple operation and low cost, and is suitable for industrial production.

Description

technical field [0001] The invention belongs to the field of food processing, in particular to a grape seed oil and a preparation method thereof, in particular to a grape seed oil with high content of active ingredients, especially polyphenols, and a preparation method thereof. Background technique [0002] With the continuous improvement of social living standards, people's eating habits have also changed. Overeating has caused many people to suffer from "three high diseases", namely high blood sugar, high blood pressure and high blood lipids. Among them, patients with hyperglycemia are the most common, and they need to strictly control their diet, reduce sugar and salt, and take hypoglycemic drugs in severe cases. This also makes many hyperglycemic patients choose to put less oil or even no oil in their diet. [0003] Grapeseed oil is a high-grade edible oil obtained from the further processing of grape seeds, a by-product of winemaking or fruit juice pressing. Grapeseed...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/04C11B3/00C11B3/06C11B3/16A23D9/007A23D9/04
CPCA23D9/007A23D9/04C11B1/025C11B1/04C11B3/001C11B3/06C11B3/16
Inventor 余意肖俊勇张晖从仁怀马方励
Owner INFINITUS (CHINA) CO LTD
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