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Flaxseed oil containing compound antioxidant, and preparation method for flaxseed oil

A compound antioxidant and linseed oil technology, applied in edible oil/fat, using additives to preserve fatty substances, producing fat, etc., can solve the problems of endangering the health of eaters, flavor, color and nutritional deterioration, and achieve oxidation stability high effect

Inactive Publication Date: 2019-10-15
DALIAN POLYTECHNIC UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high content of unsaturated fatty acids in linseed oil, during storage, due to the influence of temperature, light, enzymes and other factors, it is very easy to automatically oxidize to generate hydroperoxides, and then decompose into aldehydes, ketones and lower fatty acids, etc. Secondary oxidation products, leading to deterioration of flavor, color and nutrition, and endangering the health of consumers

Method used

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  • Flaxseed oil containing compound antioxidant, and preparation method for flaxseed oil
  • Flaxseed oil containing compound antioxidant, and preparation method for flaxseed oil
  • Flaxseed oil containing compound antioxidant, and preparation method for flaxseed oil

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A linseed oil containing complex antioxidants is composed of the following raw materials in weight ratio: 99.968 linseed oil, 0.004 fat-soluble phytic acid, 0.008 vitamin E, 0.008 ascorbyl palmitate, and 0.012 tea polyphenol palmitate.

[0031] The preparation method of the above-mentioned linseed oil containing composite antioxidant comprises the following steps:

[0032] S1. Take 9.968 parts by weight of linseed oil and add 0.008 parts by weight of powdered ascorbyl palmitate, 0.008 parts by weight of vitamin E and 0.004 parts by weight of fat-soluble phytic acid to obtain mixed oil A;

[0033] S2. Add 0.012 parts by weight of tea polyphenol palmitate to the mixed fat A described in step S1 to obtain mixed fat B;

[0034] S3. Ultrasonicate the mixed oil B described in step S2 for 20 minutes under the action of an ultrasonic wave with an ultrasonic power of 1000 W, and set the ultrasonic temperature to 25° C., so that the composite antioxidant is uniformly dispersed in...

Embodiment 2

[0037] A linseed oil containing complex antioxidants is composed of the following raw materials in weight ratio: 99.964 linseed oil, 0.004 fat-soluble phytic acid, 0.016 vitamin E, 0.004 ascorbyl palmitate, and 0.012 tea polyphenol palmitate.

[0038] The preparation method of the above-mentioned linseed oil containing composite antioxidant comprises the following steps:

[0039] S1. Take 9.964 parts by weight of linseed oil and add 0.004 parts by weight of powdered ascorbyl palmitate, 0.016 parts by weight of vitamin E and 0.004 parts by weight of fat-soluble phytic acid to obtain mixed oil A;

[0040] S2. Add 0.012 parts by weight of tea polyphenol palmitate to the mixed fat A described in step S1 to obtain mixed fat B;

[0041] S3. Ultrasonicate the mixed oil B described in step S2 for 20 minutes under the action of an ultrasonic wave with an ultrasonic power of 1000 W, and set the ultrasonic temperature to 25° C., so that the composite antioxidant is uniformly dispersed in...

Embodiment 3

[0044] A linseed oil containing complex antioxidants is composed of the following raw materials in weight ratio: 99.96 linseed oil, 0.004 fat-soluble phytic acid, 0.008 vitamin E, 0.004 ascorbyl palmitate, and 0.024 tea polyphenol palmitate.

[0045]The preparation method of the above-mentioned linseed oil containing composite antioxidant comprises the following steps:

[0046] S1. Take 9.96 parts by weight of linseed oil and add 0.004 parts by weight of powdered ascorbyl palmitate, 0.008 parts by weight of vitamin E and 0.004 parts by weight of fat-soluble phytic acid to obtain mixed oil A;

[0047] S2. Add 0.024 parts by weight of tea polyphenol palmitate to the mixed fat A described in step S1 to obtain mixed fat B;

[0048] S3. Ultrasonicate the mixed oil B described in step S2 for 20 minutes under the action of an ultrasonic wave with an ultrasonic power of 1000 W, and set the ultrasonic temperature to 25° C., so that the composite antioxidant is uniformly dispersed in th...

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Abstract

The invention discloses a flaxseed oil containing compound antioxidant, and a preparation method for the flaxseed oil. The preparation method comprises the following steps of: adding ascorbgyl palmitate, vitamin E, fat soluble phytic acid and polyphenol antioxidant into 9.96-9.974 parts by weight of flaxseed oil, evenly mixing, adding 90 parts by weight of flaxseed oil, shearing to be clarified, and obtaining the flaxseed oil containing the compound antioxidant. The flaxseed oil containing the compound antioxidant consists of the following raw materials at a weight ratio: 99.96-99.974 parts offlaxseed oil, 0.004-0.008 part of fat soluble phytic acid, 0.008-0.016 part of vitamin E, 0.004-0.008 part of ascorbgyl palmitate and 0.006-0.024 part of polyphenol antioxidant, wherein the polyphenol antioxidant is one of rosemarinus officinalis extract and tea polyphenol palmitate. By use of the invention, the oxidation stability of the flaxseed oil can be enhanced, and the shelf life of the flaxseed oil containing the compound antioxidant can be prolonged by more than three times than the shelf life of a common flexed oil.

Description

technical field [0001] The invention relates to the technical field of linseed oil processing, in particular to a linseed oil containing composite antioxidants and a preparation method thereof Background technique [0002] Flaxseed oil is made from flaxseed, and its α-linolenic acid content is as high as 55%. It is a precursor for the synthesis of essential fatty acids such as eicosapentaenoic acid and docosahexaenoic acid in the human body. It has important nutritional value. In addition, α-linolenic acid also has health effects such as anti-tumor, anti-thrombosis, lowering blood fat, nourishing brain cells, and regulating autonomic nerves. However, due to the high content of unsaturated fatty acids in linseed oil, during storage, due to the influence of temperature, light, enzymes and other factors, it is very easy to automatically oxidize to generate hydroperoxides, and then decompose into aldehydes, ketones and lower fatty acids, etc. Secondary oxidation products, lead...

Claims

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Application Information

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IPC IPC(8): A23D9/007A23D9/04C11B5/00
CPCA23D9/007A23D9/04C11B5/0092
Inventor 周大勇卢婷朱蓓薇沈燕白长军邵振文王竞晗
Owner DALIAN POLYTECHNIC UNIVERSITY
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