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Production of K-kala glue

A technology of carrageenan and mixture, which is applied in the field of preparing K-carrageenan, can solve the problems of high gel strength, long process flow, and high cost, and achieve the effects of high gel strength, short process, and cost reduction

Active Publication Date: 2006-09-06
BEIJING IMPERIAL ISLAND MARINE BIOLOGICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0019] The K-carrageenan prepared by this patent method has a high gel strength, which can reach 800-1100g / cm 2 , the extraction rate of K-carrageenan is 75%, but its disadvantage is that the method will use potassium chloride as a salting-out agent, and the K-carrageenan generated is the potassium salt of K-carrageenan
Moreover, the process flow is still long and the cost is high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Add 1 kilogram of commercially available food additive carrageenan mixture as raw material in the commercially available reflux tank (ZN type, produced by the pharmaceutical chemical container manufacturer), add the ethanol aqueous solution of the concentration 35% volume percentage of pH8.5 in the carrageenan mixture, form mixture. The weight ratio of the amount of raw material carrageenan to the amount of ethanol aqueous solution with a concentration of 35% volume percentage of pH8.5 is 1:2, reflux at a temperature of 80°C for 1.5 hours, place it at room temperature at 25°C, filter with filter paper, and filter with pH8 The ethanol aqueous solution of the concentration 35% volume percent of .5 is washed 3 times, and is dried to moisture content in the constant temperature box (DHP-420 type, Beijing Guangming Medical Instrument Factory) with commercially available laboratory at the temperature of 70 ℃ after washing. It is 11% by weight, and its extraction rate is 88% b...

Embodiment 2

[0048] Its used equipment and operation method thereof are basically the same as embodiment 1, only difference is, 1 kilogram of Philippines produces carrageenan semi-finished product, i.e. in the carrageenan mixture, adds the ethanol aqueous solution of the concentration 60% volume percent of pH9, forms mixture. The weight ratio of the amount of raw material to the amount of ethanol aqueous solution with a concentration of pH9 of 60% volume percentage is 1:6, reflux at a temperature of 55°C for 2.5 hours, place it at room temperature at 25°C, filter with filter paper, and then filter with a concentration of pH9 of 60%. The ethanol aqueous solution of volume percentage is washed 5 times, is dried to water content and is 10% weight percentage at the temperature of 85 ℃, and its extraction rate is 81% weight percentage, and its gel strength is 1150g / cm 2 , its kinematic viscosity is 95mm 2 / s (determined with Ping's viscometer).

Embodiment 3

[0050] Its used equipment and operating method thereof are basically the same as in Example 1, only difference is, in the raw material carrageenan mixture, add the ethanol aqueous solution of the concentration 35% volume percent of pH7.5, the gel strength of gained product K-carrageenan 930g / cm 2 .

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Abstract

The present invention relates to a method for preparing K-carrageenan from a carrageenan mixture. In this method, the mixture of carrageenan is used as a raw material to add 10-60% ethanol aqueous solution with pH 7.5-9 or pH 8.2-9, and reflux at a temperature of 55-85°C for 0.5-2.5 hours or with a frequency of 20 -After 10-100 minutes of ultrasonic treatment at 60 kHz, filter and dry to obtain the product K-carrageenan. The gel strength of the carrageenan prepared by the method of the invention is high, and the capsules for medicine prepared by the carrageenan meet the quality requirements of the current Chinese Pharmacopoeia and the standard YBFO0022005 of the State Food and Drug Administration. The process of this method is short, energy-saving and reduces the cost of the product.

Description

technical field [0001] The invention relates to a method for separating and extracting carrageenan from seaweed, more specifically a method for preparing K-carrageenan from a carrageenan mixture. Background technique [0002] Polysaccharides are the most abundant biological macromolecules on earth, and carrageenan is an important member of the polysaccharide family. Carrageenan (Carrageenan), also known as carrageenan, is a β-D bonded by 1,3 -Sulfated cell wall polysaccharide formed by repeated cross-linking of galactosyl and 1,4-bonded α-D-galactosyl. It is extracted from various red algae such as Chondrus, Eucheuma, Gigartina and Hypena. These substances are rich in sources, non-polluting, and have many application fields. They were used more than 600 years ago, and they were studied in the 1950s. There are still many researchers conducting research in this area. [0003] (1→3) and (1→4) cross-linked D-galactose is the common structure of carrageenan, which can be divide...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08B37/00
Inventor 唐连德王元度赵丽侠唐思宇周玉坤
Owner BEIJING IMPERIAL ISLAND MARINE BIOLOGICAL TECH