Unlock instant, AI-driven research and patent intelligence for your innovation.

Process for producing eucheuma edible fibers

A technology of dietary fiber and Gracilaria, which is applied in the field of preparation of Gracilaria dietary fiber, can solve the problems of dietary fiber functional expansion and low water holding capacity, and achieve the effect of improving functionality

Inactive Publication Date: 2005-12-28
SOUTH CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the current process of extracting dietary fiber from Gracilaria generally adopts the high-temperature dilute alkali method, and the cell structure of Gracilaria is relatively compact, and the functionality of the extracted dietary fiber (including swelling power and water holding capacity) is low, which is difficult to meet people's needs. Therefore, It is necessary to carry out functional improvement research on Gracilaria dietary fiber in order to increase its application value and meet people's needs

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] ①Pre-treatment: After adding 20 times water absorption and expansion to the Gracilaria dietary fiber obtained by the high-temperature dilute alkali method, adjust the pH to 4 with acetic acid solution, soak at room temperature for 20 hours, and then heat the Gracilaria dietary fiber to 48°C, Then add 200U / g cellulase to hydrolyze for 120 minutes, filter, wash off the residual acetic acid with water until the soaking solution is close to neutral, and then dry the dietary fiber;

[0014] ②Extrusion modification: Extrude the enzymatically hydrolyzed Gracilaria dietary fiber with a twin-screw extruder at an extrusion temperature of 90°C, a screw speed of 110r / min and a material moisture of 18%, then dry and pulverize , that is, the high active dietary fiber of Gracilaria.

Embodiment 2

[0016] ①Pre-treatment: After adding 20 times water absorption and swelling to the Gracilaria dietary fiber obtained by the high-temperature dilute alkali method, adjust the pH to 4.5 with acetic acid solution, soak at room temperature for 22 hours, and then heat the Gracilaria dietary fiber to 49°C, Then add 200U / g cellulase to hydrolyze for 110 minutes, filter, wash the residual acetic acid with water until the soaking solution is close to neutral, and then dry the dietary fiber;

[0017] ②Extrusion modification: Extrude the enzymatically hydrolyzed Gracilaria dietary fiber with a twin-screw extruder at an extrusion temperature of 95°C, a screw speed of 120r / min and a material moisture of 19%, then dry and pulverize , that is, the high active dietary fiber of Gracilaria.

Embodiment 3

[0019] ①Pre-treatment: Add 20 times water absorption and expansion of the Gracilaria dietary fiber obtained by the high-temperature dilute alkali method, adjust the pH to 5 with acetic acid solution, soak at room temperature for 24 hours, and then heat the Gracilaria dietary fiber to 50°C, Then add 200U / g cellulase to hydrolyze for 100 minutes, filter, wash off the residual acetic acid with water until the soaking solution is close to neutral, and then dry the dietary fiber;

[0020] ②Extrusion modification: Extrude the enzymatically hydrolyzed Gracilaria dietary fiber with a twin-screw extruder at an extrusion temperature of 100°C, a screw speed of 130r / min and a material moisture of 20%, then dry and pulverize , that is, the high active dietary fiber of Gracilaria.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The technological process of raising the function of diet fiber in eucheuma includes soaking the diet fiber, which is obtained with eucheuma and through high temperature dilute alkali solution method, to swell, regulating pH to 4-5 with acetic acid solution, soaking at normal temperature for 20-24 hr, heating to 48-50 deg.c, enzymolysis with cellulase of 200 U / g for 100-120 min, filtering, washing with clear water to become neutral and stoving; extruding at 90-100 deg.c in double-screw extruder, stoving and crushing. The said process can raise the swelling capacity and water maintaining capacity greatly and thus improve the functional property of eucheuma diet fiber.

Description

technical field [0001] The invention relates to a food deep processing technology, in particular to a preparation method of Gracilaria dietary fiber which can improve its functional properties Background technique [0002] Dietary fiber is a complex mixture of polymers and is an important food nutrient required for human digestion. Many studies have shown that dietary fiber plays a positive role in the prevention and treatment of colon cancer, hypercholesterolemia, coronary heart disease and other chronic diseases. The physiological function of dietary fiber is not only related to the processing method, but also depends to a large extent on the source of raw materials. The dietary fiber extracted from land plants such as cereals, beans, bagasse and vegetables is currently used. Low functional index and poor physiological activity. [0003] Gracilaria is mainly produced in coastal areas such as Fujian, Guangdong, Guangxi and Hainan. It is a red algae marine plant rich in ag...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): A23L33/21
Inventor 李来好陈培基李刘冬杨贤庆吴燕燕刁石强
Owner SOUTH CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI