A method to verify the regeneration effect of antioxidants by constructing a solid-liquid two-phase separable regeneration system

An antioxidant and regeneration technology, applied in the preparation of test samples, color/spectral characteristics measurement, etc., can solve the problems of complex operation and high cost, and achieve the effect of extending shelf life, low cost, and simple and intuitive method.

Active Publication Date: 2022-04-29
JIANGNAN UNIV
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Problems solved by technology

[0007] In order to solve the problem of complex operation and high cost in the prior art for verifying the regenerative effect of antioxidants, the regenerative effect of antioxidants with different solubility is verified, and a simple, intuitive and efficient method is provided. A verification method for whether there is a regenerative effect between antioxidants, so as to realize the good application of antioxidants with different solubility in different food systems in the later stage

Method used

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  • A method to verify the regeneration effect of antioxidants by constructing a solid-liquid two-phase separable regeneration system
  • A method to verify the regeneration effect of antioxidants by constructing a solid-liquid two-phase separable regeneration system
  • A method to verify the regeneration effect of antioxidants by constructing a solid-liquid two-phase separable regeneration system

Examples

Experimental program
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Effect test

Embodiment 1

[0038] Example 1: Verification of the regenerative effect of ascorbic acid on TBHQ

[0039] (1) Preparation of β-cyclodextrin inclusion compound containing ascorbic acid

[0040] Weigh 30g of β-cyclodextrin into 420g of deionized water, heat and fully dissolve in a 60°C water bath to obtain a β-cyclodextrin solution.

[0041] Ascorbic acid solution was prepared by dissolving 15 g of ascorbic acid in 150 mL of deionized water.

[0042] Add ascorbic acid solution dropwise to the β-cyclodextrin solution at a constant speed, and stir magnetically at 60°C for 6 hours in a magnetic water bath stirring pot. After the solution was cooled, it was placed in a refrigerator at 4°C for crystallization. After no more crystals were precipitated, the crystals were collected by filtration, rinsed, and dried in vacuo to obtain a solid.

[0043] (2) Construction of solid-liquid two-phase separable regeneration system

[0044] Prepare 1 mmol / L methanol solution of TBHQ, and take two equal part...

Embodiment 2

[0047] Example 2: After the solid-liquid two-phase separable system verified that ascorbic acid can regenerate TBHQ, the application experiment of the combination of the two in cream puffs

[0048] (1) Production of the puff shell:

[0049] Add the butter, sugar, water, and salt to the pan and heat over medium heat stirring to distribute the oil evenly. After boiling, turn to low heat, pour in all the flour, stir quickly to make the flour and water completely mixed together, until the flour and water are completely combined, turn off the heat. After the batter is cooled to 60-65°C, divide into three groups for control experiment, two groups do not add ascorbic acid, one group adds 0.2% ascorbic acid, and mix well. Add a small amount of eggs, and stir until the batter absorbs all the eggs. The batter is stirred up into an inverted triangle shape, and the distance from the sharp corner to the bottom is 4cm without slipping. Line the baking tray with tin foil, squeeze the batte...

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Abstract

The invention discloses a method for verifying the regeneration effect between antioxidants by constructing a solid-liquid two-phase separable regeneration system, belonging to the field of antioxidant regeneration. The method is based on the different solubility of antioxidants, dissolving fat-soluble antioxidants in methanol, and complexing water-soluble antioxidants with β-cyclodextrin to form solid-phase inclusion complexes, thereby constructing the interaction between antioxidants. In the solid-liquid two-phase separable regeneration system that is in contact but not miscible with each other, the change of the antioxidant capacity in the liquid phase solution is compared with the presence or absence of water-soluble antioxidants by the DPPH free radical scavenging method, so as to judge the added water-soluble antioxidants. whether there is a regenerative effect on fat-soluble antioxidants. The invention realizes the effective verification of the regenerative effect between antioxidants, has simple method, few influencing factors and low cost.

Description

technical field [0001] The invention relates to a method for verifying the regeneration effect between antioxidants by constructing a solid-liquid two-phase separable regeneration system, and belongs to the field of antioxidant regeneration. Background technique [0002] Antioxidants are classified according to their sources, and antioxidants can be divided into industrial synthetic antioxidants and natural antioxidants. Common synthetic antioxidants are mainly tert-butylhydroquinone (TBHQ), 2,6-di-tert-butyl-4-methylphenol (BHT), and butylhydroxyanisole (BHA). For a long time, it has been widely used in industrial production because of its advantages of low price, simple process and strong anti-oxidation effect. Natural antioxidants, as natural green and safe antioxidants, have a wide variety, such as vitamin C, E, etc., which have been widely used in the fields of oils and cosmetics. However, compared with natural antioxidants, because of the high extraction cost and uns...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/28G01N21/33
CPCG01N1/28G01N21/33
Inventor 姚卫蓉陈雪琪于航谢云飞郭亚辉成玉梁
Owner JIANGNAN UNIV
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