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Preparation method of trichosanthes kirilowii pulp B-type starch

A technology of fruit pulp and thorn tower is applied in the field of reuse of non-medicinal parts of Chinese medicinal materials, which can solve the problems of normal cultivation of harmful farmland, dumping into ditches and rivers, environmental pollution, etc., so as to improve comprehensive utilization rate, reduce environmental pollution, and speed up The effect of sedimentation rate

Inactive Publication Date: 2019-01-25
NANJING UNIVERSITY OF TRADITIONAL CHINESE MEDICINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of processing the seeds of Trichosanthes, a large number of Trichosanthes or bilateral Trichosanthes fruit flesh was discarded and dumped into ditches and rivers, which not only caused a certain waste of resources, but also caused serious environmental pollution, which is harmful to farmland normal farming

Method used

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  • Preparation method of trichosanthes kirilowii pulp B-type starch
  • Preparation method of trichosanthes kirilowii pulp B-type starch
  • Preparation method of trichosanthes kirilowii pulp B-type starch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A type B starch of Tiaolou, which is prepared by the following method:

[0036] (1) Take 5 kg of fruit pulp of fresh Jiao Lou (about 75% water content), stir and mix the fruit pulp and pH3.0 citric acid aqueous solution at a weight ratio of 1:6, and soak for 6 hours.

[0037] (2) Take the step (1) soaking solution and centrifuge at 3500 rpm / min for 10 minutes to collect the solid part.

[0038] (3) Take the solid part of step (2), wash with 4 times the amount of pure water until it is neutral, then wash with 3 times the amount of ethanol, and sieving (100 mesh).

[0039] (4) Centrifuge the filtrate of step (3) at 4000 rpm / min for 10 minutes, and dry the precipitate with a hot-air blast dryer at 60° C. to obtain the B-type starch of the fruit pulp. The purity of starch is 98.9% measured by absorbance method, the ratio of straight chain and branch chain is 1:2.84, and the particle shape is like figure 1 .

Embodiment 2

[0041] A type B starch of Tiaolou, which is prepared by the following method:

[0042] (1) Take 2 kg of fruit pulp of fresh Chiropractic (water content about 75%), stir and mix the fruit pulp and pH 10.0 sodium hydroxide aqueous solution in a weight ratio of 1:5, and soak for 4 hours.

[0043] (2) Take step (1) and centrifuge the soaking solution at 3000 rpm / min for 10 minutes to collect the solid part.

[0044] (3) Take the solid part of step (2), wash with 5 times the amount of pure water to neutrality, wash with 2 times the amount of ethanol, and sieve (100 mesh).

[0045] (4) Centrifuge the filtrate of step (3) at 5000 rpm / min for 8 minutes, and dry the precipitate with hot air blast at 45° C. to obtain the type B starch of the fruit pulp. The purity of starch is 99.1% measured by absorbance method, the ratio of linear and branched chains is 1:2.86, and the particle shape is as figure 2 .

Embodiment 3

[0052] Embodiment 3 performance test:

[0053] Through the analysis and evaluation of the physical and chemical properties of the B-type starch made from Example 1 and Example 2, the X-diffraction results are as follows image 3 (A: Example 1 栝lou fruit pulp starch, B: Example 2 栝lou fruit pulp starch) There are three strong absorption peaks in the vicinity of 15°, 17°, 24°, so the 栝lou fruit pulp starch The crystallinity of starch is B type. The thermal degradation behavior and thermal stability were evaluated by thermogravimetric analysis (TGA). The thermal degradation process of Tiaolou fruit pulp B-type starch can be divided into three processes such as Figure 4 (A: Example 1 Tiaolou fruit starch B: Example 2 Tiaolou fruit starch), the sample in the first stage is dehydrated rapidly at 100℃, the weight loss at this stage is about 10%; the second stage is at a temperature of 300 Between ~350℃, the molecular chain of amylose and amylopectin is broken; the third stage is when ...

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Abstract

The invention discloses a preparation method of trichosanthes kirilowii pulp B-type starch. The method takes fresh pulp of trichosanthes kirilowii or bilateral trichosanthes kirilowii as a raw material and adopts an acid or alkali extraction method, and the trichosanthes kirilowii pulp B-type starch is obtained by washing with water, washing with alcohol, sieving and drying; the quality and characteristics of the starch are studied. The starch components in the pulp of the discarded trichosanthes kirilowii or bilateral trichosanthes kirilowii are scientifically extracted and separated; the obtained trichosanthes kirilowii pulp B-type starch is high in purity and good in quality, and can be used for providing the raw material for the food industry and the industry. The preparation method provided by the invention also can solve the problems that the trichosanthes kirilowii or the bilateral trichosanthes kirilowii is high in seasonal yield, the waste pulp is difficult to store, and environmental pollution is caused; furthermore, highly processed products are developed, so that the additional value is increased, and the method has an important practical application value.

Description

Technical field [0001] The invention belongs to a method for reusing the non-medicinal parts of Chinese medicinal materials, and specifically relates to a method for separating and purifying type B starch granules from the fruit pulp of the Chinese medicinal materials. Background technique [0002] Trichosanthes kirilowii Maxim. or Trichosanthesrosthornii Harms, also known as hanging melon, medicinal melon, etc., belong to the genus Trichosanthes kirilowii Maxim. Mainly produced in Anhui, Shandong, Henan, Sichuan, Jiangsu and other places. Gualou or Bilateral Gualou whole body has high medicinal value. Gualou, Gualou peel, Gualouzi and Trichosanthes are all listed in the pharmacopoeia, and they are well used in the field of medicine. At the same time, Gualouzi is also widely used in the food industry, and the snack foods made are widely welcomed by consumers. [0003] Judging from the proportion of each part of the whole fruit or bilateral fruit, the fruit pulp accounts for 31 to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B30/04
CPCC08B30/04
Inventor 刘培张黄琴钱大玮段金廒
Owner NANJING UNIVERSITY OF TRADITIONAL CHINESE MEDICINE
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