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Method for preparing seaweed fertilizer by using extremely large kelp as raw material

A technology of seaweed fertilizer and kelp, which is applied in the field of preparation of seaweed fertilizer, can solve the problems of high cost of seaweed fertilizer production raw materials, kelp has not realized the use of whole cells, etc., achieves repeated and continuous use of enzymes, improves resource utilization efficiency, Effect of reducing enzyme consumption

Inactive Publication Date: 2018-01-12
NANCHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the high cost of raw materials for seaweed fertilizer production, and the failure to realize the whole cell utilization of seaweed fertilizer in the process of seaweed fertilizer production, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Wash the extremely large kelp with tap water, then soak it in tap water for 48 hours, and change the water every 4 hours during this period; chop the extremely large kelp after soaking with a knife (width: about 0.5 cm, length: about 5 cm), and chop The extremely large kelp is pulverized by a colloid mill. After crushing, the extremely large kelp mud and distilled water are mixed at a volume ratio of 1:15, and the suspension is processed by a high-pressure homogenizer; the working conditions of the homogenizer: pressure 60 MPa, cycle times 3 times, flow rate 1000 liters / hour, room temperature conditions . Pueraria slag pretreatment method produced in the production process of kudzu root powder: rinse with distilled water 3 times, put it in a beaker, mix kudzu root slag and 2% bleaching powder solution at a mass ratio of 1:15, vibrate in a shaker at 160 rpm After shaking for 5 minutes, the rotation speed was adjusted to 60 rpm, the temperature was controlled at 20°C, an...

Embodiment 2

[0033] Wash the extremely large kelp with tap water, then soak it in tap water for 48 hours, and change the water every 4 hours during this period; chop the extremely large kelp after soaking with a knife (width: about 0.5 cm, length: about 5 cm), and chop The extremely large kelp is pulverized by a colloid mill. After pulverization, the extremely large kelp mud and distilled water are mixed at a volume ratio of 1:30, and the suspension is processed by a high-pressure homogenizer; the working conditions of the homogenizer: pressure 80 MPa, cycle times 5 times, flow rate 1000 liters / hour, room temperature conditions . Pretreatment method of kudzu root slag produced in the production process of kudzu root powder: wash 5 times with distilled water, put it in a beaker, mix kudzu root dregs and 6% bleaching powder solution at a mass ratio of 1:30, shake in a shaker, press 280 rpm After shaking for 8 minutes, the rotation speed was adjusted to 80 rpm, the temperature was controlled...

Embodiment 3

[0036] Wash the extremely large kelp with tap water, then soak it in tap water for 48 hours, and change the water every 4 hours during this period; chop the extremely large kelp after soaking with a knife (width: about 0.5 cm, length: about 5 cm), and chop The extremely large kelp is pulverized by a colloid mill. After pulverization, the extremely large kombu mud and distilled water are mixed at a volume ratio of 1:20, and the suspension is processed by a high-pressure homogenizer; the working conditions of the homogenizer: pressure 70 MPa, cycle times 4 times, flow rate 1000 liters / hour, room temperature . Pueraria slag pretreatment method produced in the production process of kudzu root powder: wash 4 times with distilled water, put it in a beaker, mix kudzu root slag and 4% bleaching powder solution at a mass ratio of 1:20, oscillate in a shaker, press 220 rpm After shaking for 7 minutes, the rotation speed was adjusted to 90 rpm, the temperature was controlled at 30°C, an...

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PUM

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Abstract

The invention relates to a method for preparing seaweed fertilizer by using extremely large kelp as a raw material. The method is characterized in that the extremely large kelp is treated by using a colloid mill and high-pressure homogenizer combined pretreatment method and an enzymatic pueraria root residue immobilization method, and the obtained seaweed homogenate is subjected to biocatalytic conversion by means of an immobilized enzyme two-step enzymatic hydrolysis process, so that the target of respectively degrading seaweed polysaccharides and proteins into seaweed oligosaccharides and polypeptides can be achieved; a continuous production process of preparing the seaweed fertilizer by carrying out enzymatic hydrolysis on the large kelp based on a continuous flow stirring tank reactoris finally established; enzymatic hydrolysate is centrifuged, so that supernatant and extremely large kelp residue are obtained; a concentrated solution is obtained by carrying out falling-film evaporation on the supernatant, and ultrafiltrate is the liquid seaweed fertilizer; enzymatic residues of the extremely large kelp, oil-tea-cake and the like are subjected to co-fermentation so as to form solid organic fertilizer, so that the aim of utilizing all cells of the extremely large kelp is achieved. The method increases the resource utilization efficiency of the extremely large kelp and improves an extremely large kelp processing technology and seaweed fertilizer production level, realizes the repeated and continuous use of enzyme, reduces the enzyme consumption, and lowers the productioncost of the seaweed fertilizer; the product is good in quality, pure natural, free from pollution and degradable.

Description

technical field [0001] The invention belongs to the technical field of chemical industry and relates to a preparation method of seaweed fertilizer. Background technique [0002] Seaweed fertilizer is a bio-fertilizer made of seaweed as the main raw material and scientifically processed. The main components are natural biologically active substances extracted from seaweed that are beneficial to plant growth and development, and seaweed absorbed from the ocean and enriched in the body. Mineral nutrients, including seaweed polysaccharides, phenolic polymers, mannitol, betaine, plant growth regulators (cytokinins, gibberellins, auxin, and abscisic acid, etc.) and nitrogen, phosphorus, potassium, and Iron, boron, molybdenum, iodine and other trace elements. In addition, in order to increase the fertilizer efficiency and the chelating effect of the fertilizer, a proper amount of humic acid and trace elements are also dissolved. [0003] Compared with traditional fertilizers, sea...

Claims

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Application Information

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IPC IPC(8): C05G1/00C05F17/00
CPCY02W30/40
Inventor 郑洪立刘玉环刘明智张锦胜万益琴王允圃
Owner NANCHANG UNIV