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The benzene/alcohol extractives from Artocarpus lingnanensis Leavies have inhibitory effects on bamboo moulds. However Artocarpus lingnanensis leavies are still underutilized and hence wasted. In order to better utilize Artocarpus lingnanensis leavies resources, the biomedicine resource of benzene/alcohol extractives from Artocarpus lingnanensis Leavies were analyzed by GC/MS. Relative content of...
Fiddlehead has been used in traditional Chinese medicine since Han Dynasty. However fiddlehead are still underutilized and hence wasted. In order to better utilize fiddlehead resources, the drug safety of benzene/alcohol extractives from fiddlehead were analyzed by GC/MS. Relative content of each component was determined by area normalization. The main ingredients of benzene/alcohol extractives of...
Cotton stalk has the great potential of degradable biomaterials.Therefore, GC/MS was used to analyze the components of the volatiles from cotton stalk to review environment-friendliness. Relative content of each component was determined by area normalization. The main and abundant constituents were mandelamide(24.04%), 1,4,7,10,13,16-hexaoxanonadecane, 18-propyl-(6.27%), 2,4,7(1H,3H,8H)-pteridinetrione(5...
Electronic products plays an un-replaceable role in modern society. But An increase in the number of people in the world having health problems caused by electromagnetic radiation pollution. Based on test reports and large numbers of literature and data about electromagnetic radiation, the types and characteristics of electromagnetic radiation pollution had been analyzed. And the body endanger of...
Plantations have been planted in large area in South China now. A mass of leaves was naturally abandoned and degradable so that the resources were wasted. Therefore, in order to make full use of the leaves resources, the effect of bioactive substance in leaves on bamboo biomass moulding was studied based on full-factor test. The result is: (1) Tree species of leavies extractives had highly obvious...
Based on the single-factor method, the fresh Cunninghamia lanceolata shavings were treated by means of the alkali liquor extraction under pulsed electromagnetic fields to obtain the best extraction technology. The results are as follows: (1) During the the sorbitic-extracting process, Extraction time had significant effect on the leaching rates at 0.1 level. And sort of alkaline had significant effect...
Cunninghamia lanceolata is medicinal plant in South China, and its wood extractives are greatly applied in the therapy and protection of human diseases. Therefore, the nano biomedical components of the acetic ether extractives of Cunninghamia lanceolata biology were studied by Py-GC/MS to find new specific drug. 93 compounds of the extractives were identified. The main constituents were cedrol (18...
Wood extractives could be suited directly for biomedicine. Eucalyptus granlla has become one of the most important plantation resources in south China. Therefore, the fresh Eucalyptus granlla shavings were extracteded under the direct current electric field, alternating electric field, electromagnetic field and soxhlet extracting, and the extractives were analyzed by ZETA and SIZER to find out the...
As the massive agent in the paper mills, deinking agent was wasted to pollute environment. Therefore, Py-GC/MS was used to analyze the bioenergy resource of deinking agent. After treated with freeze-drying, the comminuted power of deinking agent was pyrolyzed in He atmosphere at 590 square , then the pyrolysis product was analyzed by online linked GC/MS. Relative content of each component was determined...
Chinese fir essential oil, which is some of the wood extractives, has been used as traditional Chinese medicine for a long time. Therefore, the chemical components from Chinese Fir wood were extracted with benzene/ethanol and identified by PyGC/MS after concentration in order to reveal utilization value of its pure natural medical resources. Relative content of each component was determined by area...
There is the theology of the plywood formaldehyde-emission which is similar to the solid and the liquid. The mature theory of rheological is applied to study on the mechanism of the plywood formaldehyde-emission in this paper, and the loose models of the plywood formaldehyde emission are created. The formularies FM = F0e-0.1429t and P = P0/k(1-e-0.1429t) can be received and used to describe the influence...
Phenol-formaldehyde resin is used as the most adhesive to produce waterproof plant-based composite. However, this product contains phenol and formaldehyde which can be easily released to pollute air. Based on the single-factor method, the effect of nano SiO2 on situation of pyrolytic reaction of PF resin was studied by Py-GC/MS. The results were shown that the components of PF by Py-GC-MS analysis...
Phyllostachys heterocycla is mainly used for pulping. But water and other chemical aids are severely wasted because the content of extractives is high. What's worse, water pollution from the extractives is very serious in South China. Therefore, the acetone extractives of Phyllostachys heterocycla chips were identified by Py-GC/MS. The acetone extractives contains 80 compounds namely lupan-3-one (8...
As a ideal raw material in bioenergy, extractives of Cunninghamia lanceolata wood are severely wasted. Therefore, the chemical components from Cunninghamia lanceolata wood were extracted with benzene /ethanol and identified by Py- GC/MS after concentration. Relative content of each component was determined by area normalization. 83 compounds of the extractives were identified. The main constituents...
Wood extractives for bioenergy with high additional value is looked upon as a strategy task. In this paper, the chemical components in the benzene/ethanol extractives of Eucalyptus urophylla wood were isolated and identified by Py- GC/MS so as to increase economic benefits. The relative content of each component was determined by peak area normalization. 73 compounds in the extractives were identified...
The chemical components from benzene/ethanol extractives of fresh Chinese-fir wood were separated and identified by GC/MS after enriched. Relative content of each component was determined by area normalization. 18 compounds representing 94.96% of the extractives were identified. The main and abundant constituents were octadecanoic acid, methyl ester(16.95%), nonadecanoic acid, methyl ester (cas) (15...
As the most expensive wood tree, Santalum album L. has been planted more than 1000 mu in South China now. A mass of S. album L. shoots was naturally abandoned and degradable so that the resources were wasted. Therefore, in order to overcome the negative effects, Py-GC/MS was used to analyze the extractives of S. album L. shoots. Relative content of each component was determined by area normalization...
Now Eucalyptus wood begins to be used to pulp. However, water, adhesives and other assistants are severely wasted because the extractive of Eucalyptus wood is enriched. What is worst, water pollution becomes more serious because of the polluting extractives of Eucalyptus wood. Therefore, based on the single-factor method, the fresh E. camaldulensis shavings were treated in the sorbitic extractor and...
The chemical components from benzene/ethanol extractive of fresh Phyllostachys heterocycla shavings were separated and identified by GC/MS after enriched. Relative content of each component was determined by area normalization. 73 compounds of the extractives were identified. The main and abundant constituents were as: vitamin E, hexadecanoic acid(cas), 9,12-octadecadienoic acid (z,z)-, tetradecane,2,6,10-trimethyl-,...
Phenol-formaldehyde resin is used as the most adhesive to produce waterproof plant-based composite. However, this product contains phenol and formaldehyde which can be easily released to pollute air. Based on the single-factor method, the effect of nano TiO2 on situation of cure and pyrolytic reaction of PF resin was studied by FT-IR and Py-GC/MS. The result of FT-IR spectrograms showed that the absorbencies...
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