Fengjuan Wu

3-(4-Bromo-phen-yl)-4-(4-hy-droxy-anilino)furan-2(5H)-one.

In the title compound, C16H12BrNO3, the butyrolactone core adopts the furan-2(5H)-one structure and forms dihedral angles of 44.80 (17) and 65.73 (18)° with the bromobenzene and phenol rings, respectively. In the crystal, N—H⋯O and O—H⋯O hydrogen bonds link the molecules, generating R 4 3(26) loops The edge-fused rings extend to form a chain running along the b-axis direction and C—H⋯π contacts help to consolidate the packing.

Study on Biomedical Application Prospect of Benzene/Alcohol Extractives from Magnolia heptapeta Based on Environment Protection

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, 2-pentadecyl-, 3,6-nonadien-5-one, 2,2,8,8-tetram ethyl-, 6,8-dioxa-3-thiabicyclo(3,2,1)octa ne 3,3-dioxide, aromadendrene, dehydro-, 1-naphthalenamine, n-phenyl-, phenol, 2,4-bis(1-phenylethyl)-, vitamin e, 3,6,9,12-tetraoxatetradecan-1-ol, 14-[4-(1,1,3,3-tetramethylbutyl)phenoxy]-, phytol, phenol, 2-(1-phenylethyl)-, ethanone, 1-(methylenecyclopropyl) , 6,7-dimethoxyquinoxaline, 1,2-benzenedicarboxylic acid, bis(2-methylpropyl) ester, etc. The results obtained fully indicated that the benzene/alcohol extractives of Magnolia heptapeta leavies had the great potential of biomedicines.

Study on Risk Management of Investment on Food and Drug Safety of Fiddlehead

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 fiddlehead were toluene,2-furancarboxaldehyde, 5-(hydroxym ethyl)-, n1-(4-hydroxybutyl)-n3-methylguani dine acetate, 1,3-dihydroxyacetone dimer, sulfurous acid, cyclohexylmethyl hexadecyl ester, 1,4,7,10,13,16-hexaoxanonadecane, 18-propyl-, 1,6-anhydro-.beta.-d-glucopyranose(levoglucosan), oxirane, hexadecyl-, etc. The results obtained fully indicated that the benzene/alcohol extractives of fiddlehead had the great potential of noble natural biomedicines.

Study on Biomedical Risk Management of Benzene-Alcohol Extractives of Bamboo Leaves

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, 1,2,3,4,4a,9,10,10a-octahydro-1,4a-dimethyl-7-(1-methylethyl)-, 1-Hexadecene, 1-Butene, Propene, 1-Pentene, 4-methyl-, 1-Pentene, 2-methyl-, Bicyclo[3.1.1]heptane,2,6,6-trimethyl-, Stigmastan-3,5-diene, Nonacosane, 1-Docosene, 1,3-Cyclohexadiene, Tetracosane, Toluene, Heptacosane, 1-chloro-, 1-Heptene, 2-isohexyl-6-methyl-, Stigmast-4-en-3-one, Hexacosanoic acid, methyl ester, Sulfide, bis(2-cyano-3,4-dihydro-2,3,3-trimethyl-2H-pyrrol-5-yl)-, etc. So the benzene-alcohol extractives of Phyllostachys pubescens leaves could be used as rare biomedicines.

Study on energy saving technique of bamboo biobleaching based on water resource protection

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 of H2O2 was 3%. The treatment time on the impact of white degree was significant at 0.05 level. And white degree decreased with treatment time. the best treatment time was 0.5h. White degree was bad with white degree longer in the H2O2 high concentration solution. Temperature had no significant effect on the bleaching of bamboo. White degree decreased at first, then increased with temperature. the best temperature 90°C. Concentration of the extractives from camphor trees leaves had no significant effect on the bleaching of bamboo. White degree decreased at first, then increased with concentration of the extractives from camphor trees leaves.

Study on Energy Saving Technique of Bamboo Bleaching Rapidly Based on Water Resource Protection

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°С. If the temperature was too low or too high, the bleaching effect was bad. And the bleaching solution formula had the influences on bleaching effect. Alkaline bleaching solution formula was better.

Study on Inhibition Effects of Bioactive Substance in Leaves on Mould by Energy Saving Technology

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 influence on bamboo biomass moulding. Tree species of leavies was key to preparation of mould inhibitor. And treatment time had no influence on bamboo biomass moulding. And treatment time was adjusted based on the anti-mold effect of the leavies extractives on bamboo biomass moulding. (2) The optimal anti-mold effects of bamboo biomass was the leavies extractives of Cinnamomum camphora and Cornus controversa. The next was Cryptomeria japonic, Cupressus funebr, Masson pine, Pterocarya tonkinesis, and Idesia polycarpa. The worse were Metasequoia glyptostroboides. Keywords—Bioactive Substance, Leaves Extractives, Mould, Bamboo Moulding, Natural Resources