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Magnolia heptapeta has been used in traditional Chinese medicine. However Magnolia heptapeta are still underutilized and hence wasted. In order to better utilize Magnolia heptapeta resources, the biomedicine resource of benzene/alcohol extractives from Magnolia heptapeta leavies were analyzed by GC/MS. The main ingredients of benzene/alcohol extractives of Magnolia heptapeta were toluene, 1,3-dioxane,...
Bamboo leaves has been used to heal some diseases in the Chinese Folk for a long time. In order to explore the wide biomedicine utilization, the determination of the chemical components of benzene-alcohol extractives from the fresh Phyllostachys pubescens leaves was made by using Py-GC/MS. The results indicated that the main components were 1,3-Butadiene, 2-methyl-, 1-Phenanthrenecarboxylic acid,...
Bamboo is so easy to moulding that bamboo products haven't been high value added utilization. Therefore, the effect of wood extractives molecules on bamboo biology moulding was studied based on full-factor test. The result is: (1) The effect of tree species of wood extractives on bamboo biomass moulding was highly remarkable. The effect of treatment time on bamboo biology moulding was not remarkable...
In order to eliminate colour difference of bamboo sheets, the energy saving technique of bamboo bleaching rapidly based on water resource protection was studied. The results showed that the appropriate addition agent may improve function of H2O2 bleaching bamboo. the oxidation of H2O2 was the best at 80°C. If the temperature was too low or too high, the bleaching effect was bad. And the bleaching...
Eucalyptus urograndis leaves are cheap and fine natural resources. Therefore, GC/MS was used to analyze high-grade bioenergy utilization of acetone extractives of Eucalyptus urograndis leaves. 43 compounds in the extractives were identified. The mainly abundant constituents were 1,2,3-butanetriol (33.25%), ethyl.alpha.-d-glucopyranoside (13.48%), thiazolidin-4-one, 3-(9H-xanthen-9-yl)-2-thioxo- (12...
Bamboo is so easy to moulding that bamboo products haven't been high value added utilization. Therefore, the effect of extractives molecules of Mourning Cypress on bamboo biology moulding was studied based on full-factor test. The result is: (1) the benzene/ethanol extractives from Mourning Cypress leaves could inhibit bamboo biology moulding. (2) The main and abundant constituents of the benzene/ethanol...
In order to eliminate colour difference of bamboo sheets and prevent bamboo moldy, the energy saving biotechnique of bamboo bleaching rapidly based on water resource protection was studied. The results showed that The H2O2 concentration on the impact of white degree was significant at 0.05 level. And white degree increased at first, then decreased with concentration of H2O2. the best concentration...
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...
The technology for removing oleoresin from masson pine wood without waste water is an great market demand. What is worse is that the current consumption of skim a lot of energy technology.The result is as follows: (1)The influence of the sulfur addition on the quantity of dissolved resin is remarkable.The influence of the other factors is not remarkable. (2) The ideal deresination technology is: The...
The high-grade resource recovery on acetic ether extractives in E. camaldulensis wood was analyzed by means of Py-GC/MS, and relative content of each component was determined by area normalization. Results showed that main constituents of acetic ether extractives were ergosta-4,6, 22-trien-3.beta.-ol (12.53%), 1-phenanthrenecarboxylic acid, 1,2,3,4,4a,9,10,10a-octahydro -1,4a-dimethyl-7-(1- methylethyl)-,...
Lignincellose fiber was one of special fibers which were used for textile fiber, paper, engineering plastics, etc. And Eucalyptus camaldulensis has been widely planted in south China. Therefore, based on the single-factor method, the fresh Eucalyptuscamaldulensis wood flour were treated by means of the alkali liquor extraction to obtain the best purification of lignincellose fiber. The results are...
Now Eucalyptus wood begins to be used to pulp. The leaching rule of nano particles from E.camaldulensis wood has an important significance in the forestry research and paper making engineering. Therefore, based on the single-factor method, the fresh E. camaldulensis shavings were treated by LiOH in a concentration range of 0.5%~25% g/mL and the duration is 3, 16 and 24 hours respectively. The extraction...
The global economy is facing economic crisis at present. And all the industries are face to serious problem relative to their fates. In addition, the bamboo industry in China is not relating to ecological environment construction for low utilization rate of raw materials, high energy consumption and low products extra value. therefore, the development model and countermeasure is urgent to be studied...
In order to purify blogical Chinese herbal medicine from wood etractives and hmicellulose at the molecular level, the fresh Chinese-fir cells were extracted in LiOH solution, and were analyzed by ZETA and SIZER to find out the leaching rule of nano particles in Chinese-fir cells. The results are as follows: (1) The extraction mass arrived at the maximum value when LiOH concentration is about 17.5%...
Deresination process, which usually consume a large quantity of water, is widely applied to enhance the addded value of pine wood processing utilization. In order to reduce the consumption of water resource, deresination technology on Pinusmassoniana wood was investigated. Results showed that the influence of the degreasing temperature on the of the intermediate deck and the core layer of Pinusmassoniana...
In order to overcome the above-mentioned negative effects, the fresh Chinese-fir shavings were extracted in KOH soultion, were analyzed by ZETA and SIZER to find out the leaching rule of nano particles in Chinese-fir wood. The results are as follows: (1) The extraction mass arrived at the maximum value when KOH concentration is about 17.5%. The micro/nano particles in Chinese-fir shavings would be...
In order to explore the potential of Phyllostachys pubescens used as resources utilization on biomedical, determination of the chemical components in five-year-old Phyllostachys pubescens was carried out by means of Py-GC/MS. 69 peaks were obtained from Phyllostachys pubesces and 62 compounds which occupy 99.99% of the total peaks areas were identified. The main components in Phyllostachys pubescens...
The pyrolytic products of Dendrocalamusbarbatus organism body is of important value in healing some diseases. Therefore, the determination of the chemical components from the five-year-old Dendrocalamusbarbatus was made by using Py- GC/MS. The results indicated that the main components of the Dendrocalamusbarbatus by Py-GC/MS analysis were carbon dioxide (54.34%), 2-butanamine, (s)- (17.4%), oxirane,...
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