The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
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...
Mangliaia aromatica has been planted in garth. However Mangliaia aromatica are still underutilized and hence wasted. In order to better know Mangliaia aromatica, the biomedicine resource of benzene/alcohol extractives from Mangliaia aromatica were analyzed by GC/MS. Relative content of each component was determined by area normalization. The main ingredients of benzene/alcohol extractives of Mangliaia...
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...
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...
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...
As the massive agent in the paper mills, deinking agent was wasted to pollute environment. What's worse, wood extractives increased environmental pollution. Therefore, PyGC/MS was used to analyze the bioenergy resource of bamboo ethanol extractives. Relative content of each component was determined by area normalization. The ethanol extractives contain 117 compounds namely 2-furancarboxaldehyde, 5(hydroxymethyl)...
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...
Pinus massoniana is one of the most important species in plantation-grown forest in China and been widely used in many fields. However, the properties of strong moisture absorption and weak dimensional stability limit its development. The introduction of thermal treatment and carbonization has repaired this defect in certain extent but at the cost of high energy-consumption. In this paper, whole factor...
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...
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...
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 overcome the above-mentioned negative effects, the extractives of the fresh Cunninghamia lanceolata shavings, which were obtained by using both the sorbitic-extracting approaches, 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 NaOH concentration is...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.