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Method for extracting grape seed oil by cold pressing

A grape seed oil, grape seed technology, applied in the direction of fat oil/fat production, fat oil/fat refining, fat production, etc., can solve the problem that the cell wall cannot be destroyed, and achieve less loss of nutrients, full utilization, and high oil yield. Effect

Inactive Publication Date: 2013-10-16
SHIHEZI TIANCHENG GREASE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the cold-pressed oil production technology only performs rolling processing on the oil, and does not perform frying processing, resulting in a large number of cell walls of the oil seeds that cannot be destroyed. Usually, the residual oil rate of the pressed oil reaches about 20-35%.

Method used

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  • Method for extracting grape seed oil by cold pressing
  • Method for extracting grape seed oil by cold pressing
  • Method for extracting grape seed oil by cold pressing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Effects of enzyme pretreatment on grape seed cold pressing oil extraction process:

[0046] 1. Materials and methods:

[0047] 1.1 Raw materials and reagents:

[0048] Grape seeds: provided by Shihezi Tiancheng Oil Co., Ltd. Pectinase (10,000U / g activity), cellulase (10,000U / g activity), and neutral protease (50,000U / g activity) were all purchased from Beijing Aobo Biotechnology Co., Ltd.

[0049] 1.2 Instruments and equipment:

[0050] PHS-2C acidity meter, Shanghai Precision Scientific Instrument Co., Ltd.; DGG-9053AD electric heating constant temperature drying oven, Shanghai Senxin Experimental Instrument Co., Ltd.; MLS-3020 high-pressure steam boiler, SANYO; LXJ-I-IB centrifuge, Shanghai Anting Technology Instrument Factory; HH-4 digital display constant temperature water bath, Guohua Electric Co., Ltd. 2. Experimental method:

[0051] 2.1 Pretreatment of grape seeds:

[0052] Use winnowing and vibrating sieves to remove the grape seeds that have deteriorated...

Embodiment 2

[0113] Optimization of grape seed cold pressing oil production process:

[0114] 1. Experimental materials and methods:

[0115] Grape seed raw materials were provided by Shihezi Tiancheng Oil Co., Ltd. The experimental equipment is shown in Table 5.

[0116] table 5

[0117]

[0118] 2. Experimental method:

[0119] 2.1 Pretreatment of grape seeds

[0120] Use winnowing and vibrating sieves to remove the grape seeds that have deteriorated, shrunken shells, and broken skins, and then soak them in clean water to remove the juice mucus on the surface. Put them in a cool and ventilated place to dry naturally, seal them well, and store them in a cool, dark place for later use.

[0121] 2.2 Tablets

[0122] The cleaned and removed grape seeds are pressed into tablets using a double-roller flaking machine, and the thickness of the grape seed blanks is required to reach 0.6-1.0mm.

[0123] 2.3 Wetting

[0124] The moisture content of the grape seed flakes is adjusted to 20%...

Embodiment 3

[0172] Pilot study:

[0173] In October 2012, a pilot test was carried out at Shihezi Tiancheng Oil Co., Ltd. by enzymatic hydrolysis-cold pressing technology, and about 20 tons of grape seed oil were produced. The product is light yellow-green, clear, transparent, good smell and taste, moisture and volatile matter 0.01%, impurity 0.03%, soap content 0.004%, acid value 0.21mg / g, peroxide value 1.3mmol / kg, lead 0.02mg / kg, aflatoxin B1<10ug / kg, copper 0.01mg / kg, iron 0.02mg / kg, fenthion and dimethoate were not detected, and all indicators of the product reached the national standard of "Grape Seed Oil" (GB / T22478 -2008).

[0174] Process flow: Grape seed→cleaning and impurity removal→water regulation→flaking→enzymolysis→water and temperature regulation→pressing→refining→filling→storage.

[0175] Operation points:

[0176] (1) Cleaning and removing impurities: the grape seed raw materials are cleaned through winnowing and screening, and the impurity content is required to be ...

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Abstract

The invention discloses a method for extracting grape seed oil by cold pressing, which can ensure the natural characteristic of the grape seed oil, is less in nutritional ingredient loss, and meanwhile can obtain higher oil extraction rate. The method comprises the step of adding compound enzyme enzymolysis process in the grape seed preprocessing step. The invention has the benefits that the technical scheme is that the cell walls of grape seeds are further destroyed by adopting an enzymolysis technology to facilitate oil flowing out, and then the grape seeds are cold-pressed to extract oil. The invention has the advantages that the natural characteristic of the grape seed oil can be ensured, the nutritional ingredient loss is less, and meanwhile, higher oil extraction rate can be obtained, so that the resources can be utilized more sufficiently. From the aspects of the production technology, the technological parameters and the product quality, as compared with the similar technology, the method adopting the technical scheme shows a good application effect and is high in product quality.

Description

technical field [0001] The invention relates to a processing technology of grape seed oil, in particular to a method for cold pressing grape seed oil. Background technique [0002] The waste (skins, seeds, stems) produced in the winemaking process accounts for about 20%-30% of the total fresh fruit, of which grape seeds account for about 7%-10% of the total weight of fresh fruit. more than 42,000 tons. The northern slope of the Tianshan Mountains in northern Xinjiang and Turpan and Hami in eastern Xinjiang are rich in wine grapes, and there are many wine companies. The Shihezi reclamation area has produced 50,000 mu of wine grapes, and 40,000 mu of wine grapes are growing. It is planned to expand the planting area to 2015. 200,000 mu. At present, except for a small part of grape seeds used as feed and fertilizer, most of them are directly discarded, which not only causes waste of resources, but also increases environmental pressure. [0003] Studies have found that the oi...

Claims

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Application Information

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IPC IPC(8): C11B1/06C11B1/04C11B3/06C11B3/10
Inventor 王春荣罗鹏陈国刚周金玲刘忆冬
Owner SHIHEZI TIANCHENG GREASE CO LTD
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