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Composition, application and evaluation method for evaluating nutritional value of eggs

A technology of nutritional value and eggs, applied in the direction of measuring devices, instruments, scientific instruments, etc., to achieve the effect of simple methods

Inactive Publication Date: 2018-03-27
CHINA ANIMAL DISEASE CONTROL CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, judging from the existing technology, there is no related technology that applies mass spectrometry and chromatography to the evaluation of the nutritional value of eggs

Method used

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  • Composition, application and evaluation method for evaluating nutritional value of eggs
  • Composition, application and evaluation method for evaluating nutritional value of eggs
  • Composition, application and evaluation method for evaluating nutritional value of eggs

Examples

Experimental program
Comparison scheme
Effect test

experiment example

[0052] 1.1 Sample collection

[0053] Egg collection under extensive breeding conditions: Hailan brown layer hens were raised free-range in mountainous areas (farmers in Bashang area, Fengning, Chengde City, Hebei Province). For the eggs laid within a certain period of time, this type of eggs is regarded as a group, which is called "Group C", and 200 eggs are taken; under the condition of large-scale farming, eggs are collected: during the same time as above, laying hens of the same breed were raised in a certain area in Beijing. 200 eggs were purchased as a group, called "Group P". The eggs of the two groups were fresh and kept in the same condition.

[0054] 1.2 Determination of nutritional components of eggs under different feeding methods

[0055] 50 eggs were randomly selected from each of the two groups to prepare for the experiment.

[0056] The above two groups of eggs were processed, and the nutritional parameters were measured. The specific parameters included: ash...

Embodiment 1

[0089] Take 20 eggs from free-range chickens in mountainous areas (Yixian, Baoding City, Hebei Province), which are called "Group A". 20 eggs are called "Group B", and 20 eggs purchased from a farm in Harbin with artificial feed feeding method are called "Group C". From the analysis of egg sources and nutritional value, it is obvious that the nutritional value of free-range type A group eggs (commonly known as Chai eggs) is better than artificial feeding type B and C group eggs.

[0090] From the appearance (volume, weight, color) of the eggs, it can be found that the eggs of group A are smaller in volume and generally less than 50g in weight, and the eggs of group B are larger in size and generally weigh more than 50g; the eggs of group C are basically the same as group A in appearance. In terms of volume and weight, Group B is superior to Group A and Group C. Open into the container, the color of group A, especially the egg yolk, is obviously yellower than the other two gro...

Embodiment 2

[0098] Take 10 eggs laid by free-range chickens in mountainous areas (Yixian, Baoding City, Hebei Province), which are called "Group A". It is called "Group D", and 10 eggs were purchased from the bazaar, which is called "Group E".

[0099] From the observation of the appearance and color of the eggs, it can be found that the eggs of group A are relatively small, generally less than 50g, and most of the eggs are white in skin; the eggs of group D are relatively large, generally greater than 50g, and most of the eggs are reddish brown in appearance; Basically the same as group D. Open into the container, the color of group A, especially the egg yolk, is obviously yellower than the other two groups, and the egg yolk color of the other two groups has no difference.

[0100] The above samples were subjected to sample pretreatment, chromatographic analysis, mass spectrometry analysis and data analysis according to the method 1.2-1.5 in the experimental example, the results are as ...

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Abstract

The invention provides a composition for assessing nutritive value of an egg. The composition contains isoleucine, tyrosine and / or vitamin B1. A method for utilizing the composition to assess the nutritive value of the egg comprises the following steps: detecting if the isoleucine, tyrosine and / or vitamin B1 is contained in the egg or the content of the isoleucine, tyrosine and / or vitamin B1 in the egg; utilizing the composition to symmetrically confirm the height sequence of the nutritive value of the egg, respectively determine the contents of the isoleucine, tyrosine and vitamin B1 in the egg and sequencing from high to low according to the determination results of the three materials; summing the contents of the three determined materials and sequencing from high to low according to the summing result; and lastly, comparing the sequences and confirming the height sequence of the nutritive value of the egg. The composition provided by the invention can be used for assessing the nutritive value of the egg and determining the sequence. The method is simple, quick and accurate and can be used for quantitatively determining.

Description

technical field [0001] The invention relates to an evaluation method of the nutritional value of eggs by using isoleucine, and belongs to the field of evaluation of livestock and poultry products in agricultural products. Background technique [0002] As a daily source of nutrition for humans, eggs are closely related to people's lives. Eggs contain a lot of nutrients, among which trace elements, crude protein, crude fat, cholesterol, lecithin, vitamin B2 and vitamin A are the main nutrients. These nutrients in eggs help to improve the function of the nervous system, enhance memory, and prevent memory loss in the elderly; the contained trace elements selenium, zinc, and vitamins all have anti-cancer effects. Therefore, regular consumption of eggs can enrich nutrition, keep fit and prolong life. [0003] There are many kinds of eggs available in the market, including eggs from large-scale chicken farms, firewood eggs produced by extensive free-range laying hens, artificial ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N30/88
CPCG01N30/88
Inventor 田亚平王海侯东军雷春娟刘勇军王睿男姜艳彬
Owner CHINA ANIMAL DISEASE CONTROL CENT
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