Anti-oxidation composition and application thereof

A technology of antioxidant and composition, applied in the field of application of antioxidant composition in food-grade white oil, which can solve problems such as increased UV absorbance, yellowing of color, complex chemical reactions, etc.

Inactive Publication Date: 2017-05-24
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although food-grade white oil itself has excellent oxidation stability, external conditions, especially light, temperature, oxygen in the air and metal contact, also have a great impact on the oxidation stability of the oil, often in the storage of oil, During transportation and use, especially after measures such as heating and heat preservation are added in winter, oil products will inevitably undergo complex chemical reactions with oxygen over time, resulting in yellowish color, unqualified analysis of easily carbonized substances, and increased UV absorbance and other phenomena

Method used

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  • Anti-oxidation composition and application thereof
  • Anti-oxidation composition and application thereof
  • Anti-oxidation composition and application thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1-3

[0037] Examples 1-3 are the specific composition of the antioxidant composition product of the present invention, comparative example 1 is an α-tocopherol antioxidant, comparative example 2 is a natural vitamin E mixed tocopherol antioxidant, and comparative example 3 is an antioxidant composition without adding blank food grade white oil. Based on the total weight of the antioxidant composition, each component is added in proportion to a mixing container, stirred at normal temperature and pressure for 2 hours, and a uniform transparent light yellow viscous liquid is obtained, which is the product of the present invention. The results are shown in Table 1.

[0038] Table 1 Composition of antioxidant products

[0039] serial number α-tocopherol, % Natural vitamin E mixed tocopherols, % Example 1 50 50 Example 2 60 40 Example 3 70 30 Comparative example 1 100 0 Comparative example 2 0 100 Comparative example 3 0 0

Embodiment 4

[0041]In the present invention, based on the weight of the food-grade white oil, the addition amount of the antioxidant composition is 0.002% (wt%), and the test oil is No. 100 food-grade white oil. A 40h heating test was carried out at a constant temperature of 110°C. The UV absorbance (NB / SH / T 0415-2013) and easy carbonization (GB / T11079-2000) analysis of the samples during the test are shown in Table 2.

[0042] Table 2 Antioxidant Heating Evaluation Test

[0043]

[0044] The analysis in Table 2 shows that after the No. 100 food-grade white oil blank sample of Comparative Example 3 was heated for 13 hours, the analysis of easily carbonized substances failed. With the increase of heating time, the ultraviolet absorbance obviously increased and exceeded the product index requirements; After heating to 40 hours and 22 hours respectively in Example 1 and Comparative Example 2, the analysis of easily charred substances failed, and the UV absorbance increased in varying degr...

Embodiment 5

[0046] In the present invention, based on the weight of the food-grade white oil, the addition amount of the antioxidant composition is 0.01% (wt%), and the test oil is No. 100 food-grade white oil. A 40h heating test was carried out at a constant temperature of 110°C. The UV absorbance and easy carbonization analysis of samples during the test are shown in Table 3.

[0047] Table 3 Antioxidant Heating Evaluation Test

[0048]

[0049] Shown by table 3 analysis, because the addition of composite antioxidant composition is 0.01% (wt%), and addition is composite antioxidant addition range upper limit, after 110 ℃ of heating 40 hours, embodiment 1,2,3 sample Both the easily carbonized substance and the UV absorbance are qualified, showing excellent oxidation stability.

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Abstract

An anti-oxidation composition comprises a component A natural vitamin E and tocopherol mixture and a component 2 alpha-tocopherol; and the natural vitamin E and tocopherol mixture is a natural vitamin E antioxidant containing alpha-tocopherol, beta-tocopherol, gamma-tocopherol and delta-tocopherol; and the natural vitamin E composite anti-oxidant has a good anti-oxidaiton effect, is a natural and green anti-oxidant, and is nontoxic and innocuous to human bodies. The alpha-tocopherol has high anti-oxidation ability at room temperature; and the gamma-tocopherol and the delta-tocopherol have long-duration anti-oxidation ability at a high temperature, and the gamma-tocopherol and the delta-tocopherol are compounded to generate synergism, so the anti-oxidation ability of food grade white oil is substantially improved.

Description

technical field [0001] The invention relates to a natural antioxidant composition, more precisely, an antioxidant composition with natural safety and excellent oxidation stability, and also relates to the application of the antioxidant composition in food-grade white oil. Background technique [0002] White oil is a type of petroleum product obtained through deep refining to remove impurities such as aromatics, sulfides, and nitrides in lubricating oil fractions. It has the characteristics of colorless, tasteless, odorless and stable chemical properties. It is widely used in daily chemical industry, pharmaceutical production, food processing, fiber and textile, polystyrene resin, petrochemical industry, plastic and rubber processing, leather processing, Instrumentation and electric power, agriculture and other fields. [0003] At present, the production method of white oil is mainly hydrogenation method, which undergoes secondary or tertiary hydrogenation treatment in the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23D9/06A23L29/00
Inventor 黄新平李辉熊春珠李静李春娣
Owner PETROCHINA CO LTD
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