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Method for decolorizing tea oil by adopting mixed decolorizing agent

A technology of decolorizing agent and camellia oil, which is applied in the direction of oil/fat refining and fat production, can solve the problem of rare secondary decolorization of activated clay and activated carbon, and achieve the effects of convenient measurement, light color and reliable method.

Inactive Publication Date: 2012-04-04
ANHUI AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there are many studies on the decolorization effect of activated clay and activated carbon alone at home and abroad, but the research on the mixed decolorization of activated clay and activated carbon and the secondary decolorization are still rare.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 2

[0026] Take 100g of unbleached camellia oil and heat and dehydrate it under vacuum for 40 minutes at 100°C. While keeping the temperature constant, add citric acid to adjust the pH of the tea oil to 5-6, and add 7g of tea oil to the dehydrated camellia oil Mix the decolorizing agent while stirring, and decolorize for 25 minutes. After the decolorization is completed, the camellia oil is cooled, and then centrifuged at a speed of 3000r / min for 15 minutes to separate the camellia oil from the decolorizing agent to obtain decolorized camellia oil. Then add 1 gram of sodium carbonate, 7g mixed decolorizing agent in the camellia oil, stir simultaneously, decolorize 25 minutes, after the decolorization finishes, the tea oil is cooled, then centrifuged for 15 minutes with the speed of 3000r / min, the camellia oil Separated from the decolorizing agent to obtain the decolorized camellia oil product. When measured by spectrophotometry, the maximum wavelength is 454-500nm.

[0027] The d...

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Abstract

The invention relates to a decolorizing method for tea oil. The decolorizing method comprises the following steps of: weighing non-decolorized tea oil, and heating the non-decolorized tea oil under a vacuum condition; adding a certain amount of mixed decolorizing agent to the tea oil; stirring the mixture under the condition that the heating temperature is kept unchanged; cooling and centrifuging the tea oil after the tea oil is decolorized for a certain time; and separating the tea oil from the decolorizing agent to obtain a decolorized finished tea oil product. The decolorizing method disclosed by the invention have the advantages of simpleness and convenience for operation and high working efficiency; and the tea oil processed by using the method disclosed by the invention has the advantages of light color and luster and good transparency. According to the decolorizing method disclosed by the invention, quality and preservation stability of the tea oil are improved; and a good example is provided for the development of tea oil industry as well as the comprehensive utilization of resources.

Description

technical field [0001] The invention relates to a method for decolorizing camellia oil, in particular to a method for decolorizing camellia oil by using a mixed decolorizing agent. Background technique [0002] Camellia oleifera oil is a woody oil obtained from the seeds of Camellia oleifera, also known as tea seed oil and camellia oil, and is a unique woody oil in my country. Camellia oleifera seed contains about 85% oil, 14% free fatty acid and unsaponifiable matter, and 90% unsaturated fatty acid, of which oleic acid is 75%-83%, linoleic acid is 7.4%-13%, and unsaponifiable matter is 1%. the following. Camellia oleifera seed oil is rich in physiologically active substances, such as sterols, tocopherols, squalene, etc. These substances have special effects in medicine. [0003] The depth of color is one of the important quality indicators of vegetable oil. The commonly used methods for measuring the color of oil include potassium dichromate method, photoelectric colorime...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B3/00C11B3/10
Inventor 丁之恩周倩聂芸
Owner ANHUI AGRICULTURAL UNIVERSITY
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