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Method for comprehensively utilizing cinnamomum longepaniculatum leaves

A technology of camphor leaves and volatile oil, applied in the field of camphor leaves utilization, can solve the problems of wasting resources, less research on development and utilization methods, low comprehensive utilization rate of raw materials, etc., and achieves the effects of reducing damage and promoting sustainable development.

Active Publication Date: 2015-01-28
YIBIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the development and utilization of camphor leaves are mainly based on the extraction of volatile oil, and there are few studies on other development and utilization methods
Yibin, Sichuan is the main production area of ​​camphor in my country. The annual output of volatile oil from camphor leaves exceeds 4,000 tons. After extracting the volatile oil, a large number of residues and by-products are left. Only a few residues are recycled as firewood. There are nearly 100,000 tons of camphor per year. Leaf residues are discarded, not only wasting resources, but also destroying the ecological environment
These methods have relatively single utilization approaches to camphor leaves, lack of recovery and reuse of residues after single use of camphor leaves, low comprehensive utilization of raw materials, and no treatment of volatile oils, flavonoids and polysaccharides in camphor leaves. Reports on joint extraction of chemical substances

Method used

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  • Method for comprehensively utilizing cinnamomum longepaniculatum leaves

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Embodiment 1: as figure 1 As shown, 1 kg of dried camphor leaves were distilled over water for 2 hours, the distillation condensate was collected, and the oil and water were separated to obtain 48.2 mL of volatile oil.

[0014] Dry the camphor leaf residue after extracting the volatile oil, pulverize it, pass through an 80-mesh sieve, add the camphor leaf residue into an ethanol solution with a volume fraction of 50% according to the mass ratio of material to liquid 1:15, soak for 20 minutes, and extract at 90°C for 120 minutes , filter, the filter residue is for subsequent use, concentrate the filtrate, add high-concentration ethanol solution to the concentrated solution, make the alcohol content reach 80%, let it stand overnight, centrifuge, collect the precipitate I, and adopt the phenol sulfuric acid method to record the total polysaccharide in the precipitate I as 33.12g, Collect the supernatant I and use NaNO 2 -Al(NO 3 ) 3 -NaOH colorimetric method records the...

Embodiment 2

[0017] Embodiment 2: as figure 1 As shown, 1kg of dried camphor leaves were distilled by direct steam for 2h, the distillation condensate was collected, and the oil and water were separated to obtain 50.2mL of volatile oil.

[0018] Dry the camphor leaf residue after extracting the volatile oil, crush it, pass through a 60-mesh sieve, add the camphor leaf residue to an ethanol solution with a volume fraction of 40% according to the mass ratio of material to liquid 1:10, soak for 10 minutes, and extract at 80°C for 60 minutes , filter, the filter residue is for subsequent use, concentrate the filtrate, add high-concentration ethanol solution to the concentrated solution, make the alcohol content reach 80%, leave standstill overnight, centrifuge, collect the precipitate I, adopt the phenol sulfuric acid method to record the total polysaccharide in the precipitate I as 36.04g, Collect the supernatant I and use NaNO 2 -Al(NO 3 ) 3 -NaOH colorimetric method records the total fla...

Embodiment 3

[0021] Embodiment 3: as figure 1 As shown, 1kg of dried camphor leaves were distilled by steam diffusion for 2h, the distillation condensate was collected, and the oil and water were separated to obtain 53.2mL of volatile oil.

[0022] Dry the camphor leaf residue after extracting the volatile oil, crush it, pass through a 100-mesh sieve, add the camphor leaf residue to an ethanol solution with a volume fraction of 70% according to the mass ratio of material to liquid 1:20, soak for 30 minutes, and extract at 100°C for 180 minutes , filter, the filter residue is for subsequent use, concentrate the filtrate, add high-concentration ethanol solution to the concentrated solution, make the alcohol content reach 80%, let stand overnight, centrifuge, collect the precipitate I, adopt the phenol sulfuric acid method to record the total polysaccharide in the precipitate I as 12.32g, Collect the supernatant I and use NaNO 2 -Al(NO 3 ) 3 -NaOH colorimetric method records the total flav...

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Abstract

The invention discloses a method for comprehensively utilizing cinnamomum longepaniculatum leaves. The method comprises the steps of extracting volatile oil from cinnamomum longepaniculatum leaves through a steam distillation method, extracting total flavone from residual through an alcohol extraction method, extracting total polysaccharides from the residual from which total flavone is extracted through a water extraction and alcohol precipitation method, and taking the rest residual as biofertilizer a raw material. The method is simple in technology, high in operability and high in resource utilization rate, sufficiently utilizes cinnamomum longepaniculatum resource, and provides a new approach for the sustainable development of the cinnamomum longepaniculatum industry.

Description

technical field [0001] The invention relates to a method for comprehensive utilization of camphor leaves, and belongs to the technical field of utilization of camphor leaves. Background technique [0002] Oil camphor (Cinnamomum longepaniculatum (Gamble) N.Chao) is a unique aromatic plant of the genus Lauraceae in my country. Its branches and leaves are rich in volatile oil, and it has become an important raw material for spices, medicine, daily use and chemical products. At present, the development and utilization of camphor leaves are mainly based on the extraction of volatile oil, and there are few studies on other development and utilization methods. Yibin, Sichuan is the main production area of ​​camphor in my country. The annual output of volatile oil from camphor leaves exceeds 4,000 tons. After extracting the volatile oil, a large number of residues and by-products are left. Only a few residues are recycled as firewood. There are nearly 100,000 tons of camphor per ye...

Claims

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Application Information

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IPC IPC(8): A61K36/54C11B9/02C08B37/00C05F5/00
CPCA61K36/54A61K2236/15A61K2236/17A61K2236/331A61K2236/333A61K2236/51A61K2236/53A61K2236/55C05F5/002C08B37/0003C11B9/027Y02A40/20
Inventor 杜永华魏琴刘春冯瑞章游玲敖光辉
Owner YIBIN UNIV
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