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Method for coproducing fucoidan and seaweed fertilizer

A technology of fucoidan sulfate and seaweed fertilizer, which is applied in the direction of organic fertilizers, can solve the problems of waste water, waste residue, high water consumption, etc., and achieve the effect of increasing added value, significant economic benefits, and solving high water consumption and waste water waste

Inactive Publication Date: 2014-04-30
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the above-mentioned prior art, the present invention provides a method for the co-production of fucoidan sulfate and seaweed fertilizer, which fundamentally solves the problems of high water consumption and waste water residues faced by the production of fucoidan sulfate, and can Significantly increase the added value of the brown algae industry

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The extraction of embodiment 1 seaweed fertilizer component 1

[0025] Soak 500kg of lightly dried kelp in water (3000kg) and mince, soak in 75% ethanol according to the ratio of solid to liquid 1:10, heat to 60°C, soak and extract for 2 hours. Filter to obtain the extract 1 and the kelp after the initial extraction (used in Example 2), concentrate the extract 1 under reduced pressure, recover ethanol, wait for crystallization (mannitol) to separate out, stop heating, cool the concentrate, and make the mannitol separate out fully . The liquid after the separation of mannitol was further evaporated under reduced pressure to become a solid state, and 10 kg of the brown algae component (seaweed fertilizer component 1) containing plant growth promoting effect was obtained.

Embodiment 2

[0026] The extraction of embodiment 2 fucoidan sulfate

[0027] Take 500 kg of kelp from which seaweed fertilizer component 1 has been extracted in Example 1, add water at a ratio of 1:20 to the solid-liquid ratio, heat to 90° C., soak and extract for 4 hours; filter to obtain the kelp after re-extraction (used in Example 3 ) and extract 2, the extract 2 is processed and concentrated by three-stage filtration technology, and the concentrate is spray-dried or freeze-dried to obtain 5kg of fucoidan sulfate product.

Embodiment 3

[0029] The preparation of embodiment 3 seaweed fertilizer component 2

[0030] Get 500 kg of sea-tangle after extracting fucoidan sulfate in Example 2, pulverize with a homogenizer, pass through a 2-mesh sieve, add 10 times the volume of ultrafiltration waste water obtained by second-stage membrane filtration in Example 2, add carbonic acid Sodium hydrogen to a final concentration of 1.5%, heat at 50°C for 2 hours, then put it into a fermentation tank, sterilize at 110°C for 30 minutes, wait until the temperature of the material drops to 25°C, add probiotics, and carry out fermentation of probiotics to obtain a fermentation broth , which is seaweed fertilizer component 2.

[0031] The fermentation of probiotics adopts a staged method: first, insert filamentous fungi according to the inoculum size of 1:50, keep the temperature at 25-28°C, ventilate and stir, and cultivate for 18 hours; then according to the inoculum size of nitrogen-fixing bacteria at 1:20, put Azotobacter and...

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Abstract

The invention discloses a method for coproducing fucoidan and a seaweed fertilizer. The method comprises the following steps: (1) extracting a brown seaweed component having a plant growth promoting function; (2) extracting the fucoidan; (3) preparing a seaweed fertilizer component 2; and (4) blending the seaweed fertilizer, namely completely adding the seaweed fertilizer component 1 obtained in the step (1) into the seaweed fertilizer component 2 obtained in the step (3), stirring and mixing uniformly, standing for precipitating for 2 hours, filtering and centrifuging to perform liquid-solid separation, wherein the obtained liquid and solid refer to a liquid seaweed fertilizer base and a solid seaweed fertilizer base respectively. According to the method for coproducing the fucoidan and the seaweed fertilizer, resources are fully utilized, and the fucoidan product and the seaweed fertilizer are produced by means of the processes of ethanol soaking extraction, probiotics fermentation and the like, so that the problems of high water consumption as well as generation of waste water and waste residues in the production of the fucoidan are solved fundamentally, the additional value of the brown seaweed industry is increased remarkably, and a remarkable ecologic benefit is achieved.

Description

technical field [0001] The invention relates to a method for co-producing fucoidan sulfate and seaweed fertilizer. Background technique [0002] Fucoidan sulfate (English name: fucoidan; another name: fucoidan) is a sulfated acidic mucopolysaccharide produced by brown algae such as kelp, macroalgae, and mozuku. Because this polysaccharide has many health care functions such as anti-tumor, anti-coagulant, lowering blood fat, preventing and treating kidney disease, improving the body's immunity, and maintaining the skin, it has received more and more attention at home and abroad in recent years, and its price is far from Higher than traditional brown algae industrial products such as sodium alginate. However, no matter the technology of producing fucoidan sulfate from brown algae raw materials or the technology of extracting fucoidan sulfate from industrial waste residue of brown algae will consume a lot of fresh water and produce a lot of waste water and waste residue. [0...

Claims

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Application Information

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IPC IPC(8): C08B37/04C05F11/10
Inventor 吉爱国梁浩宋淑亮
Owner SHANDONG UNIV
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