摘要:
Tung oil is a special biomass resource in China. Tung Oil has the characteristic to be transformed into serial derivatives for its active Conjugated double bond. Especially, tung oil anhydride-ester polyol (TOAEP) can be used as substitute of polyester polyol and/or polyether polyol in the synthesis and modification of polyurethane materials. Through esterification and transesterification, methyl-α-eleostearate-maleic anhydride adduct (MEMAA), a derivative of tung oil, was reacted with ethylene glycol and tung oil anhydride-ester polyol (TOAEP) was obtained. The optimal preparation condition are as follows: p-toluene sufonic acid is used as the catalyst, mole ratio of ethylene glycol to MEMAA is 4:1, reaction temperature is 120°C ~130°C, reaction duration is 8 h. Under the optimal preparation conditions, the yield of TOAEP is up to 88.8% and the hydroxyl value is up to 318.0 mg KOH/g. The structure of TOAEP was confirmed by Infrared spectroscopy (IR).
作者机构:
[Zhang, Dang-Quan; Peng, Kuan; Zeng, Yan-Ling] Cent S Univ Forestry & Technol, Biotechnol Core Facil, Key Lab Nonwood Forest Prod, State Forestry Adm, Changsha 410004, Hunan, Peoples R China.
通讯机构:
[Zeng, Yan-Ling] C;Cent S Univ Forestry & Technol, Biotechnol Core Facil, Key Lab Nonwood Forest Prod, State Forestry Adm, Changsha 410004, Hunan, Peoples R China.
会议名称:
International Conference on Materials Engineering for Advanced Technologies (ICMEAT2011)
会议时间:
MAY 05-06, 2011
会议地点:
Singapore, SINGAPORE
会议主办单位:
[Zeng, Yan-Ling;Zhang, Dang-Quan;Peng, Kuan] Cent S Univ Forestry & Technol, Biotechnol Core Facil, Key Lab Nonwood Forest Prod, State Forestry Adm, Changsha 410004, Hunan, Peoples R China.
会议论文集名称:
Key Engineering Materials
关键词:
Oil-tea cake;Pyrolysis- GC/MS;Acetone extractives;Bioactive component;Biomedical constituents;600 degrees C Pyrolyzate
摘要:
A high temperature Pyrolysis (600°C) correlated with GC/MS was used to analyze the bioactive components of acetone extractives from oil-tea cake. The analytical result showed that 44 peaks were obtained from the 600°C pyrolyzate of acetone extractives of oil-tea cake and 42 compounds representing 99.12 % of the total areas were acetone extractives of oil-tea cake by 600°C-based pyrolysis- GC/MS were as: 3',5'-Dimethoxyacetophenone (22.16%), 9-Octadecenal, (Z)- (13.47%), Hexadecanoic Acid (8.36%), Dodecane, 1-Fluoro- (5.19%), Benzothiazole, 2-(Methylthio)- (4.61%), Naphthalene, 1,2,3,4-Tetrahydro-1,4,6-Trimethyl- (3.87%), .Gamma.-Sitosterol (3.16%), Naphthalene, 1,2,3,5,6,7,8,8a-Octahydro-1,8a-Dimethyl-7-(1-Methyletheny (3.12%), 1,4-Dimethyl-1,2,3,4- Tetrahydronaphthalene (2.69%), Squalene (2.08%), Bis(2-Methoxyethyl) Phthalate (1.83%), Ergost-5-En-3-Ol, (3.Beta.)- (1.65%), etc. The result of function analyses showed that the 600°C pyrolyzate of acetone extractives of oil-tea cake contain abundant components of rare natural medicinal materials, and materials of high-grade spice and cosmetic.
摘要:
Rosewood tree has high adaptability to environment and tolerance to water stress, and a long history of utilization and plantation in many countries. However, researches on Rosewood were mostly focused on the biomass analyses and utilizations of its wood, and lacked those to analyze the chemical components of extractives of Rosewood leaves, which was very important to recover and utilize the polluting waste Rosewood leaves. Therefore, the chemical components of benzene/ethanol extractives of Rosewood leaves were analyzed by method of GC/MS in order to identify top value-added bioactive components from waste leaves of Rosewood tree. The analytical result showed that the main components of benzene/ethanol extractives of freeze-dried Rosewood leaves by GC/MS analysis were identified 16 constituent (16 peaks) as: Ethanol, 2-butoxy- (40.36%), 2-O-Methyl-D-mannopyranosa (18.22 %), Hydrazine, 1,1-dipropyl- (6.09%), 1-Docosanol (5.59%), 1-Eicosanol (5.28%), Oxirane, hexadecyl- (3.63%), trans-2,4,5-Trimethoxy-.beta.-methyl- (3.50%), Bicyclo[3.1.1]heptane, 2,6,6-trimethyl- (2.53%), 9,12,15-Octadecatrienoic acid, methyl- (2.43%), Tetratetracontane (2.31%), Hexadecane, 1-(ethenyloxy)- (2.27%), Cholan-24-oic acid, 7,12-bis(acetyloxy)-3-ethoxy-, methyl ester, (3.alpha.,5.beta.)- (2.10%), Hexatriacontane (2.02%), Phytol (1.76%), Octadecane, 1-chloro (1.08%), etc. As the first report here, our result by GC/MS showed that the benzene-methanol extractive of freeze-dried Rosewood leaves can be developed into top value-added materials of medicines, biofuel, and industrial solvents.
摘要:
Cinnamomum camphora is a famous non-wood tree, which can be used to extract camphor, C. camphora oil and its ramification. It is an excellent timber tree and evanescence species with the road. Researches about the chemical composition of C. camphora root wood is very less, this restricts the development and utilization of the root of C. camphora. Therefore, we used Py-GC/MS technology to analyze the high-grade resource recovering approaches of C. camphora root wood. After treated with freeze-drying and smashing, samples were extracted by the acetone extraction. After concentration and refrigeration dry, the comminuted power of C. camphora root wood was pyrolyzed in He atmosphere at 750°C, then the pyrolysis product was analyzed by online linked GC/MS. Relative content of each component was determined by area normalization. The analytical result showed that C. camphora root wood can be used as top value-added materials of biomedicine, and also as the materials of bioenergy, perfume, cosmetic, food, dye and industrial solvent.
摘要:
The extractives of bamboo root was often used to cure some intractable diseases in the countryside of China, but the components of bamboo root extract are still unresolved. Therefore, 300 °C-based pyrolysis- GC/MS technology was used to identify and analyze the top value-added biomedical and bioactive components of benzene/ethanol extractives of Moso bamboo root. 45 compounds representing 97.316 % of the total areas were identified (Table 1) from 55 peaks. The main chemical components of benzene/methanol extractives of Moso bamboo root by 300°C-based Pyrolysis- GC/MS are as: 1,3-BENZODIOXOLE, 5-(1-PROPENYL)- (15.263%), NAPHTHALENE (12.316%), 1,2-BENZENEDICARBOXYLICACID,BIS(2-METHYLPROPYL) ESTER (9.385%), BENZENE, 1,2-DIMETHOXY-4-(2-PROPENYL)- (7.624%), 2-PROPENOIC ACID, 3-(2-HYDROXYPHENYL)- (E)- (6.012%), 4-HYDROXY-2-METHYLACETOPHENONE (5.226%), 1,2-BENZENEDICARBOXYLIC ACID, BUTYL2-METHYLPROPYL ESTER (4.328%), etc. The result showed that the 300 °C pyrolyzate of benzene/ethanol extractives of Moso bamboo root is rich in biomedical components, and also contains some bioactive components which can be used as top value-added materials of high-grade spice, cosmetic and food.
作者机构:
[Zhang, Dang-Quan; Guo, Lin-Lin] Cent S Univ Forestry & Technol, Biotechnol Core Facil, Key Lab Nonwood Forest Prod, State Forestry Adm, Changsha 410004, Hunan, Peoples R China.;[Zhang, Dang-Quan; Zhang, Huai-Yun; Peng, Kuan] S Univ Forestry & Technol, Hunan Prov Key Lab Forestry Biotechnol, Changsha 410004, Peoples R China.
通讯机构:
[Zhang, Dang-Quan] C;Cent S Univ Forestry & Technol, Biotechnol Core Facil, Key Lab Nonwood Forest Prod, State Forestry Adm, Changsha 410004, Hunan, Peoples R China.
会议名称:
International Conference on Materials Engineering for Advanced Technologies (ICMEAT2011)
会议时间:
MAY 05-06, 2011
会议地点:
Singapore, SINGAPORE
会议主办单位:
[Zhang, Dang-Quan;Guo, Lin-Lin] Cent S Univ Forestry & Technol, Biotechnol Core Facil, Key Lab Nonwood Forest Prod, State Forestry Adm, Changsha 410004, Hunan, Peoples R China.^[Zhang, Dang-Quan;Peng, Kuan;Zhang, Huai-Yun] S Univ Forestry & Technol, Hunan Prov Key Lab Forestry Biotechnol, Changsha 410004, Peoples R China.
会议论文集名称:
Key Engineering Materials
关键词:
Platanus x acerifolia (Ait.) Willd Leaves;GC/MS (gas chromatograph / mass spectrometry);waste recovery;benzene/ethanol extractives;top value-added products
摘要:
Platanus × acerifolia (Ait.) Willd has high tolerance to environment stress, and a long history of utilization and plantation in China. It is important to recover and utilize the polluting waste leaves from Platanus × acerifolia (Ait.) Willd in order to separate top value-added bioactive components, hence the chemical components of benzene/ethanol extractive of waste leaves from Platanus × acerifolia (Ait.) Willd by means of GC/MS. Relative content of each component was determined by area normalization, and 19 compounds representing 92.35 % of the extractives were identified. The most abundant constituents were as: The analytical result showed that the main components of benzene-methanol extractive of freeze-dried waste leaves from Platanus × acerifolia (Ait.) Willd by GC/MS analysis were 1,3-Dioxane (24.95%), Ethylbenzene (19.03%), p-Xylene (16.02%), Benzene, 1,2-dimethyl- (6.64%), Indane (4.00%), Heptanal (3.89%), 1-Methyl-2-(4-nitrophenyl)benzimid (3.39%), (11H)Pyrido[3',2':4,5]imidazo[2,1- (3.25%), 10-Methylnonadecane (3.00%), Benzene, 1-ethyl-3-methyl- (2.91%), Benzene, 1-ethyl-3-methyl- (2.65%), Benzene, 1-ethyl-2-methyl- (2.46%), 2,5-Cyclohexadien-1-one, 2,5-dimethyl- (1.74%), Docosane, 7-butyl- (1.52%), 1-Amino-2-(hydroxymethyl)anthraqui (1.47%), Acetaldehyde - (0.89%), etc. Our result by GC/MS firstly showed that the benzene-methanol extractives of freeze-dried waste leaves from Platanus × acerifolia (Ait.) Willd can be used as top value-added materials of medicines, cosmetics and industrial solvents.
摘要:
Liriodendron chinense (Hemsl.) Sarg (Chinese tulip tree) has a long history of utilization and plantation, but the chemical components of benzene/ethanol extractives of Liriodendron chinense (Hemsl.) Sarg leaves were unrevealed. The analytical result by method of GC/MS showed that the chemical components of benzene/ethanol extractives of freeze-dried Liriodendron chinense were identified as 55 constituent, and the main components are as: 2-Propenenitrile, 2-chloro- (13.75%), 1-Mercapto-2-heptadecanon (13.10 %), 1-Mercapto-2-heptadecanon (12.77%), Ethanol, 2-butoxy- (12.03%), 1-Docosanol (10.74%), Guanidine, (4-aminobutyl)- (5.05%), 5,10-Pentadecadiyn-1-ol, acetate (4.82%), 1,2,4-Butanetriol (3.13%), Thiophene, 2-ethyltetrahydro- (2.09%), 1-Eicosanol (2.00%), 1-Butanol, 3-methyl-, formate (1.60%), Butanoic acid (1.60%), .alpha.-D-Xylofuranoside, methyl 3,5-di-O-methyl- (1.30%), Phenol, 2,6-dimethoxy-4-(2-propenyl)- (1.29%),5.alpha.-Pregnane-12,20-dione (1.12%), Cyclopentanol (0.82%), etc. As the first report here, our result by GC/MS showed that the benzene-methanol extractive of freeze-dried leaves from Liriodendron chinense (Hemsl.) Sarg can be developed into top value-added materials of medicines and spicery.
摘要:
The current processing and utilization of oil-tea cake is still characterized by low economic benefit and low value added, therefore, 300°C-based pyrolysis- GC/MS technology was used to analyze the bioactive components of acetone extractives of oil-tea cake. Relative content of each component was determined by area normalization. The analytical result showed that the main components from 300°C-based pyrolyzate of acetone extractives of oil-tea cake by pyrolysis- GC/MS were as: SQUALENE (18.61%), 9-OCTADECENAL, (Z)- (15.27%), 3',5'-DIMETHOXYACETOPHENONE (9.53%), HEXADECANOIC ACID (7.28%), (Z)14-TRICOSENYL FORMATE (5.15%), .GAMMA.-SITOSTEROL (3.82%), BIS(2-METHOXYETHYL) PHTHALATE (2.86%), ERGOST-5-EN-3-OL, (3.BETA.)- (2.31%), etc. The results of function analyses showed that the 300°C-based pyrolyzate of acetone extractives of oil-tea cake contain rich components of rare natural medicinal materials, and also contain value-added materials of high-grade spice, food, cosmetic and bioenergy.