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Ashing assistant and method for detecting ash of bioactive pectin through the same

A technology of ashing aids and biological activity, which is applied in the field of detection of bioactive pectin ash and ashing aids. It can solve the problems of affecting the accuracy of ash content and low accuracy of ashing results, so as to improve the accuracy and shorten the ashing time. time, efficient ashing effect

Active Publication Date: 2016-03-09
YANTAI ANDRE PECTIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The prior art usually uses the traditional charcoal ashing method to detect bioactive pectin ash, but due to Na + 、K + The presence of a large number of them has brought great inconvenience to the detection of ash content of bioactive pectin products. When ashing, the salt is heated and splashed everywhere, which greatly affects the accuracy of ash content detection; at the same time, after repeated ashing, there are still A large amount of unashed black carbon residue exists, resulting in low accuracy of ashing results

Method used

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  • Ashing assistant and method for detecting ash of bioactive pectin through the same
  • Ashing assistant and method for detecting ash of bioactive pectin through the same
  • Ashing assistant and method for detecting ash of bioactive pectin through the same

Examples

Experimental program
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Effect test

Embodiment 1

[0073] Fire the porcelain crucible, after cooling, weigh it accurately, repeat the firing until the difference between the two weighings is not more than 0.5 mg, and weigh the mass of the porcelain crucible as m.

[0074] According to the nitric acid of 55wt%, the hydrogen peroxide of 6wt%, the water preparation ashing aid of 39wt%.

[0075] Accurately weigh 0.5g of bioactive pectin in a 50mL porcelain crucible, and weigh the quality of the porcelain crucible and bioactive pectin as M 2 , after carbonization on a heating plate at 250°C for 2h, it was moved into a muffle furnace for ashing at 500°C for 4h. After cooling for 30 minutes, add 8 mL of ashing aid into the porcelain crucible, and heat until the ashing aid is completely volatilized. Move the resulting product back into the muffle furnace with the porcelain crucible and continue ashing for 4 hours. Repeat the operation 4 times in total. The product obtained has a constant weight, which is the ash content in the bioact...

Embodiment 2

[0078] Fire the porcelain crucible, after cooling, weigh it accurately, repeat the firing until the difference between the two weighings is not more than 0.5 mg, and weigh the mass of the porcelain crucible as m.

[0079] Prepare the ashing aid by 30wt% nitric acid, 15wt% hydrogen peroxide, and 55wt% water.

[0080] Accurately weigh 1.0g of bioactive pectin in a 50mL porcelain crucible, and weigh the quality of the porcelain crucible and bioactive pectin as M 2 , After carbonization on a heating plate at 350°C for 4h, it was moved into a muffle furnace for ashing at 500°C for 5h. After cooling for 30 minutes, add 8 mL of ashing aid into the porcelain crucible, and slowly heat until the ashing aid is completely volatilized. Move the resulting product back into the muffle furnace with the porcelain crucible to continue ashing for 4 hours. Repeat the operation 5 times in total. The product obtained has a constant weight, which is the ash content in the bioactive pectin. Weigh th...

Embodiment 3

[0083] Fire the porcelain crucible, after cooling, weigh it accurately, repeat the firing until the difference between the two weighings is not more than 0.5 mg, and weigh the mass of the porcelain crucible as m.

[0084] Prepare the ashing aid by 13wt% nitric acid, 24wt% hydrogen peroxide, and 63wt% water.

[0085] Accurately weigh 1.2g of bioactive pectin in a 50mL porcelain crucible, and weigh the quality of the porcelain crucible and bioactive pectin as M 2 , after carbonization on a heating plate at 300°C for 3h, it was moved into a muffle furnace for ashing at 600°C for 5h. After cooling for 40 minutes, add 10 mL of ashing aid into the porcelain crucible, and slowly heat until the ashing aid is completely volatilized. Move the obtained product back into the muffle furnace with the porcelain crucible and continue ashing for 5 hours. Repeat the operation twice in total. The obtained product has a constant weight, which is the ash content in the bioactive pectin. Weigh the...

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Abstract

The invention provides an ashing assistant. The ashing assistant is prepared from, by weight, 6%-60% of nitric acid, 3%-27% of hydrogen peroxide and 37%-67% of water. The ashing assistant is high in volatility, and secondary pollution of a sample can be avoided after the ashing assistant is heated and volatilized; the nitric acid and the hydrogen peroxide achieve the synergistic effect, and therefore the bioactive pectin can be more efficiently ashed. Based on the ashing assistant, the invention further provides a method for detecting the ash of the bioactive pectin. The method includes the steps that the bioactive pectin is carbonized and ashed; then the ashing assistant is added into the ashing product till the ashing assistant is completely volatilized; the obtained product is ashed again till the weight of the obtained product is constant, and the ash of the bioactive pectin is obtained. According to the ashing assistant and the method, the hydrogen peroxide and the nitric acid are added in the ashing process to assist ashing of the bioactive pectin, ashing time is greatly shortened, and meanwhile the accuracy of the ashing result is improved.

Description

technical field [0001] The invention relates to the technical field of food component detection, in particular to an ashing aid and a method for detecting bioactive pectin ash using the ashing aid. Background technique [0002] The residue after the food is burned at high temperature is called ash. The ash is mainly mineral salt or inorganic salt in the food. For the food industry, the ash is an important quality index, which can be used to evaluate whether the food is hygienic and whether it is Adulteration can also be used as a reference index for evaluating food nutrition. [0003] Pectin is a water-soluble dietary fiber naturally present in fruits and vegetables. It can clean up heavy metals in the body, lower blood sugar, blood lipids and cholesterol, and protect against radiation. It has certain curative effects on chronic diseases such as diabetes, gastric ulcer, high blood pressure, and constipation. Antidote and plasma substitute. Natural pectin can effectively bi...

Claims

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Application Information

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IPC IPC(8): G01N5/04
CPCG01N5/04
Inventor 刘冰胡晓燕杜启印孙梦王文许磊
Owner YANTAI ANDRE PECTIN
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