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Application of Bovine Dali polysaccharide or its modified polysaccharide in delaying oil oxidation

A technology of Niu Dali and polysaccharides, which is applied in the application field of Niu Dali polysaccharides or its modified polysaccharides in delaying oil oxidation. It can solve problems such as stratification, emulsion instability, and unclear effects of modified polysaccharides, and achieve emulsification The effect of improving performance and delaying oxidation rate

Active Publication Date: 2022-03-25
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Recently, it was found that bovine polysaccharide has a certain emulsifying ability, but the stable emulsion of bovine polysaccharide is unstable, and serious stratification occurs immediately after preparation
In addition, the effect of modified polysaccharides on lipid oxidation in emulsions has not yet been clarified

Method used

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  • Application of Bovine Dali polysaccharide or its modified polysaccharide in delaying oil oxidation
  • Application of Bovine Dali polysaccharide or its modified polysaccharide in delaying oil oxidation
  • Application of Bovine Dali polysaccharide or its modified polysaccharide in delaying oil oxidation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Embodiment 1: Preparation of modified bovine Dali polysaccharide

[0048] (1) Preparation of Bovine Dali polysaccharide:

[0049]① Clean the root block of Niu Dali (produced in Fengkai County, Zhaoqing City, Guangdong Province, China) and cut it into flakes, dry (dry at 60°C for 15 hours), pulverize, and pass through a 100-mesh sieve to obtain the root block powder of Niu Dali; The hot water reflux method is used to extract the beef root powder, the conditions are temperature 80°C, material-to-liquid ratio 1:10, extraction time 1h; after the leaching is completed, centrifuge to get the supernatant, repeat the extraction twice according to the above conditions, and combine the above The clear liquid was concentrated under reduced pressure at 55°C to 1 / 4 volume to obtain the crude extract of bovine herbaceous polysaccharide;

[0050] ②In order to remove pigment and protein, add 300mL bovine vigorously polysaccharide crude extract into AB-8 macroporous resin column (colum...

Embodiment 2

[0052] Embodiment 2: Preparation of modified bovine Dali polysaccharide

[0053] (1) Preparation of Bovine Dali polysaccharide:

[0054] ① Clean the root block of Niu Dali (produced in Fengkai County, Zhaoqing City, Guangdong Province, China) and cut it into flakes, dry (dry at 60°C for 15 hours), pulverize, and pass through a 100-mesh sieve to obtain the root block powder of Niu Dali; The hot water reflux method is used to extract the beef root powder, the conditions are temperature 90°C, solid-liquid ratio 1:20, extraction time 2h; after the extraction is completed, centrifuge to get the supernatant, repeat the extraction twice according to the above conditions, and combine the above The clear liquid was concentrated under reduced pressure at 65°C to 1 / 4 volume to obtain the crude extract of bovine herbaceous polysaccharide;

[0055] ②In order to remove pigment and protein, add 300mL bovine vigorously polysaccharide crude extract into AB-8 macroporous resin column (column h...

Embodiment 3

[0057] Embodiment 3: Preparation of modified bovine Dali polysaccharide

[0058] (1) Preparation of Bovine Dali polysaccharide:

[0059] ① Clean the root block of Niu Dali (produced in Fengkai County, Zhaoqing City, Guangdong Province, China) and cut it into flakes, dry (dry at 60°C for 15 hours), pulverize, and pass through a 100-mesh sieve to obtain the root block powder of Niu Dali; The hot water reflux method was used to extract the beef root block powder, the conditions were temperature 100°C, solid-liquid ratio 1:30, extraction time 3h; after the extraction was completed, the supernatant was obtained by centrifugation, repeated extraction twice according to the above conditions, and combined The clear liquid was concentrated under reduced pressure at 75°C to 1 / 4 volume to obtain the crude extract of bovine herbaceous polysaccharide;

[0060] ②In order to remove pigment and protein, add 300mL bovine vigorously polysaccharide crude extract into AB-8 macroporous resin colu...

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Abstract

The invention discloses the application of bovine herbaceous polysaccharide or its modified polysaccharide in delaying oil oxidation. In the present invention, it is found that the addition of bovine vigorous polysaccharide to oil can effectively delay the oxidation of oil, but its emulsification stability is relatively poor. Therefore, the present invention adopts the strategy of grafting hydrophobic groups to modify bovine vigorous polysaccharide. After modification The emulsifying performance of the bovine polysaccharide can be significantly improved, and it is found that the emulsion with the modified bovine polysaccharide can maintain the same lipid oxidation rate as the emulsion with the addition of the bovine polysaccharide, because the modified bovine polysaccharide has more The polysaccharide adsorbed to the oil-water interface forms a denser and viscoelastic interfacial layer, which can play a physical shielding role and delay the oxidation of oil. Therefore, the bovine herbaceous polysaccharide and its modified polysaccharide in the present invention can be used to delay the oxidation of oil.

Description

technical field [0001] The invention relates to the application field of polysaccharides, in particular to the application of bovine herbaceous polysaccharides or modified polysaccharides in delaying oil oxidation. Background technique [0002] Niu Dali is the main variety of Nanyao. It belongs to the Papilionaceae Papilionaceae plant Spathiphyllum beautiful. It is mainly distributed in the southern part of my country and some countries in Southeast Asia. Niu Dali is a kind of traditional Chinese medicinal material that can be used as both medicine and food. It has the functions of treating arthritis and bronchitis, protecting the liver, strengthening tendons and bones, nourishing deficiency and nourishing lungs, etc. [0003] Recently, it has been found that bovine polysaccharide has a certain emulsifying ability, but the stable emulsion of bovine polysaccharide is unstable, and serious stratification occurs immediately after preparation. In addition, the effect of modifie...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08B37/00C11B5/00
CPCC08B37/00C11B5/0085
Inventor 娄文勇黄智罗思媛陈曦
Owner SOUTH CHINA UNIV OF TECH
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