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Method for preparing total alkaloids from bamboo reeds for controlling growth of harmful algae

A technology of total alkaloids and Rhododendron, applied in the field of preparation of total alkaloids of Rhododendron, can solve problems such as secondary pollution and preparation cost, and achieve the effects of good algae suppression effect, clear composition and high purity

Inactive Publication Date: 2010-04-21
BEIJING FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of secondary pollution or high production cost of the existing chemical algicides or algicides, and provide a method for controlling the growth of harmful algae, which has clear ingredients, controllable quality, and good safety. , the preparation method of total alkaloids of reed bamboo with higher purity

Method used

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  • Method for preparing total alkaloids from bamboo reeds for controlling growth of harmful algae
  • Method for preparing total alkaloids from bamboo reeds for controlling growth of harmful algae

Examples

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Effect test

Embodiment 1

[0020] Take 1 kg of the aboveground part of Arundo donax, wash it with boiled and cooled tap water, and then dry it at 50° C. for 2 days to obtain the dried Arundo donax material. Get 150g dry reed bamboo material and pulverize until the particle size is 10 mesh. Take boiled tap water as the water source, acidify with HCl, and the pH value is 4 to obtain acid water. Soak the reed bamboo granules in 1L of the acid water; after the reed bamboo granules are fully mixed and infiltrated, store in airtight storage for 12 hours, and then decoct and reflux for extraction for 3 times to obtain the acid water extract of Arundos rex; filter to remove the residue in the extract, Finally, use 0.2M weak alkaline solution to alkalize the extract to a pH value of 10, produce flocculent precipitates, and obtain alkalization solution A; finally, alkalize solution A with an equal volume of CHCl 3 Extraction and separation to obtain aqueous phase B and organic phase C; the organic phase C was di...

Embodiment 2

[0022] Take 1 kg of Arundis reed stems, wash them with deionized water, and then dry them at 60° C. for 3 days to obtain dried Arundis reeds. Get 150g dry reed bamboo material and pulverize until the particle size is 30 mesh. With deionized water as the water source, H 2 SO 4 Acidification, pH 3, gives acidic water. Soak the reed bamboo granules in 1.5L of the acid water; after the reed bamboo granules are fully mixed and infiltrated, store them in airtight storage for 18 hours, and then decoct and reflux for extraction 4 times to obtain the acid water extract of Arundis rex; centrifuge to remove the residue in the extract , and then alkalized the extract with 0.2M NaOH solution to a pH value of 12, producing flocculent precipitates to obtain alkalized solution A; 3 Extraction and separation to obtain aqueous phase B and organic phase C; the organic phase C was distilled off under reduced pressure under a rotary evaporator to remove the organic solvent, and the extract D wa...

Embodiment 3

[0024] Take 1 kg of reed bamboo leaves, wash them with boiled and cooled tap water, and then dry them at 70° C. for 4 days to obtain dry plant materials of reed bamboo. Get 150g of dried Arundo donax plants and pulverize to a particle size of 50 mesh. Using distilled water as the water source, acidify with HCl, the pH value is 2, to obtain acid water. Soak the reed bamboo granules in 3L of the acid water; after the reed bamboo granules are fully mixed and infiltrated, store in airtight storage for 24 hours, and then decoct and reflux for extraction 5 times to obtain a reed bamboo acid water extract; filter to remove the residue in the extract, Afterwards, basify the extract with 1M NaOH solution until the pH value is 14, and produce flocculent precipitates to obtain basified solution A; finally, basified solution A with 9L CHCl 3 Extraction and separation to obtain aqueous phase B and organic phase C; the organic phase C was distilled off under reduced pressure under a rotary...

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Abstract

The invention discloses a method for preparing total alkaloids from bamboo reeds for controlling the growth of harmful algae, which belongs to the technical field of water pollution control. The method comprises the steps of: cleaning bamboo reed plants, performing drying treatment on the cleaned bamboo reed plants, crushing the dried bamboo reed plants, and then adding the crushed bamboo reed plants into acid water for soakage; fully soaking the crushed bamboo reed plants, and then obtaining an extracting solution after decoction and reflux extraction; filtering to remove residue in the extracting solution, and performing alkalization treatment on the extracting solution until a floccule or a precipitate is produced to obtain an alkalified solution A; then using CHCl3 to extract the alkalified solution A, and separating to obtain an aqueous phase B and an organic phase C; and removing a solvent in the organic phase C to obtain an extract D, and then dissolving the extract D into ethanol to obtain the total alkaloids E from bamboo reeds for algae control. The method has the characteristics of simple process, wide material sources, low cost, cheap and non-toxic reagents for the preparation and the like, and solves the problem of secondary pollution or high preparation cost existing in the prior chemical algicide or algae inhibitor. At the same time, the prepared total alkaloidsfrom bamboo reeds have the advantages of good algae-inhibiting effect, definite ingredients, controllable quality, good safety and higher purity.

Description

Technical field [0001] The invention belongs to the field of water pollution control, and in particular relates to a preparation method of total alkaloids of Arundocarpus for controlling the growth of harmful algae. Background technique [0002] Eutrophication of water bodies caused by excessive amounts of nutrients such as nitrogen and phosphorus is an important reason for the deterioration of water quality. Algae in eutrophic water bodies are prone to explosive growth, endangering the aquatic ecological environment, endangering drinking water sources, and affecting human production and life. Commonly used copper ions (Cu 2+ )Algicide has a significant algae-killing effect, but it will also kill other aquatic organisms, destroy ecological functions, and cause secondary pollution; synthetic organic algaecides or algae inhibitors have high production costs and poor degradability, so There are also environmental pollution issues. It has been reported that certain metabolite...

Claims

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Application Information

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IPC IPC(8): A01N65/44A01P13/00C02F1/00
Inventor 洪喻
Owner BEIJING FORESTRY UNIVERSITY
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