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

Method for preparing high-viscosity sodium alginate from kelp

A sodium alginate and high-viscosity technology, which is applied in the deep processing of marine resources, can solve the problem of high loss rate of polysaccharides, achieve the effects of increasing extraction rate, improving market competitiveness, and increasing viscosity

Active Publication Date: 2012-06-20
上海国矗生物科技有限公司
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the adsorption of activated carbon is not selective, and it also has a strong adsorption on polysaccharides while adsorbing pigments, resulting in a high loss rate of polysaccharides.

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

[0017] Embodiment one: a kind of method for preparing high-viscosity sodium alginate from sea-tangle, comprises the following processing steps:

[0018] (1) After washing and drying the raw material kelp, it is pulverized by a pulverizer and passed through a 60-mesh sieve to obtain dry kelp powder;

[0019] (2) Soaking treatment: add 200ml glutaraldehyde aqueous solution to 10g kelp dry powder, soak at room temperature for 14h; the mass percentage concentration of the glutaraldehyde aqueous solution is 0.3%;

[0020] (3) Ultrasonic-microwave synergistic treatment: filter the glutaraldehyde aqueous solution of kelp powder with 60 mesh silk cloth; add 150ml distilled water to the filtered solid, and carry out synergistic treatment under ultrasonic and microwave conditions; the ultrasonic power is 0.1KW, the microwave power is 0.5KW, and the processing time is 10min;

[0021] (4) Digestion reaction: Add 150ml of Na 2 CO 3 The solution was subjected to a digestion reaction for ...

Embodiment 2

[0025] Embodiment two: a kind of method for preparing high-viscosity sodium alginate from sea-tangle, comprises the following processing steps:

[0026] (1) After washing and drying the raw material kelp, it is pulverized by a pulverizer and passed through an 80-mesh sieve to obtain dry kelp powder;

[0027] (2) Soaking treatment: add 300ml glutaraldehyde aqueous solution to 10g kelp dry powder, soak at room temperature for 10h; the mass percentage concentration of the glutaraldehyde aqueous solution is 0.25%;

[0028] (3) Ultrasonic-microwave synergistic treatment: filter the glutaraldehyde aqueous solution of kelp powder with 100 mesh silk cloth; add 300ml distilled water to the filtered solid, and carry out synergistic treatment under ultrasonic and microwave conditions; the ultrasonic power is 0.05KW, the microwave power is 0.1KW, and the processing time is 30min;

[0029] (4) Digestion reaction: Add 200ml of Na 2 CO 3 The solution was subjected to a digestion reaction ...

Embodiment 3

[0033] Embodiment three: a kind of method for preparing high-viscosity sodium alginate from sea-tangle, it is characterized in that, comprises the following processing steps:

[0034] (1) After washing and drying the raw material kelp, it is pulverized by a pulverizer and passed through a 70-mesh sieve to obtain dry kelp powder;

[0035] (2) Soaking treatment: add 150ml glutaraldehyde aqueous solution to 10g kelp dry powder, soak at room temperature for 20h; the mass percentage concentration of the glutaraldehyde aqueous solution is 0.75%;

[0036] (3) Ultrasonic-microwave synergistic treatment: filter the glutaraldehyde aqueous solution of kelp powder with 80 mesh silk cloth; add 150ml distilled water to the filtered solid, and carry out synergistic treatment under ultrasonic and microwave conditions; the ultrasonic power is 1KW, microwave power is 2.5KW, processing time is 0.5min;

[0037] (4) Digestion reaction: Add 180ml of Na 2 CO 3 The solution was digested for 2.5 ho...

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

PropertyMeasurementUnit
viscosityaaaaaaaaaa
viscosityaaaaaaaaaa
viscosityaaaaaaaaaa
Login to View More

Abstract

The invention relates to a method for preparing high-viscosity sodium alginate from kelp. The method comprises the following steps: (1) washing and drying up the kelp, crushing and sieving to obtain dried kelp powder; (2) adding glutaraldehyde aqueous solution to the dried kelp powder; (3) filtering the glutaraldehyde aqueous solution containing the kelp powder, and adding distilled water to the obtained solid for ultrasound-microwave synergetic treatment; (4) adding Na2CO3 solution to the obtained filter residue for nitration reaction, filtering and centrifuging the filtered liquor to obtaincoarse sodium alginate extracting solution; (5) adding macroporous weakly-alkaline styrene anion exchange resin to the coarse sodium alginate extracting solution, decompressing and filtering the coarse sodium alginate extracting solution to obtain destaining solution; (6) adding ethanol solution to the destaining solution to obtain solid through precipitation; and (7) drying and crushing the precipitate to obtain the high-viscosity sodium alginate. The sodium alginate product obtained by the method has the advantages of greatly improved extraction ratio, higher viscosity and purity and improved market competitiveness.

Description

technical field [0001] The invention relates to a method for preparing high-viscosity sodium alginate from kelp, which belongs to the field of deep processing of marine resources. Background technique [0002] As a product extracted from brown algae, sodium alginate has the characteristics of low heat, non-toxicity, easy expansion, high flexibility, and good thickening, film-forming, stability, flocculation and chelating properties. Widely used in food, textile, medicine, polymer and other fields, it can be used as food additives, edible plastic wrap for fruits and meat, fabric colorants, various pharmaceuticals, polymer water-absorbing materials, etc., and has broad application prospects. [0003] Formaldehyde solution is generally used as a pretreatment agent in industrial production. Formaldehyde can fix protein, and the pigment combined with protein in kelp is also fixed. Therefore, the amount of pigment dissolved in the separation and extraction of alginate is greatly ...

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): C08B37/04
Inventor 王洪新田洪芸马朝阳娄在祥
Owner 上海国矗生物科技有限公司