Papers by Keyword: TD-GC/MS

Abstract: Phyllostachys heterocycla begins to be used for black bamboo with high added value. However, the pyrolysis products were severely wasted. Therefore, the chemical components from Phyllostachys heterocycla were identified by TD-GC/MS after concentration. The main constituents of 150°С volatiles were acetic acid (46.75%), carbon disulfide (4.90%), 2-furanmethanol (4.10%), benzofuran, 2,3-dihydro-(3.63%), formic acid (3.27%), 2-propanone, 1-hydroxy-(2.80%), 2-propenoic acid, 2-hydroxyethyl ester (2.64%), dimethyl ether (2.15%), .beta.-pinene (1.84%), camphor (1.71%), etc. The main constituents of 180°С volatiles were acetic acid (20.66%), benzofuran, 2,3-dihydro-(14.49%), furfural (8.86%), formic acid (8.37%), 2-furanmethanol (4.17%), 4h-pyran-4-one, 2,3-dihydro-3,5-dihydroxy-6-methyl-(3.74%), 2(5h)-furanone (2.83%), 2-propanone, 1-hydroxy-(2.74%), etc. The main components of pyrolysis products of Phyllostachys heterocycla in heat charring could also be used as bioenergy materials, but were not only abundant and healthy to human.

Abstract: The analytical result by 80°С-based TD-GC/MS showed that 65 peaks were obtained from the helium volatiles from the fresh branches of Cinnamomum camphora and 60 chemical compounds were identified. The results showed that the main components were as: 1,3-Benzodioxole, 5-(2-propenyl)- (12.629%), Tricyclo[2.2.1.0(2,6)]heptane, 1,7-dimethyl-7-(4-methyl-3-pentenyl)-, (-)- (10.302%), 3-Cyclohexene-1-methanol, .alpha.,.alpha.4-trimethyl- (9.084%), Bicyclo[2.2.1] heptan-2-one, 1,7,7-trimethyl-, (1R)- (7.406%), Nerolidol (6.695%), Bicyclo[2.2.1]heptane, 2-methyl-3-methylene-2-(4-methyl-3-pentenyl)-, (1S-exo)- (6.017%), Bicyclo[2.2.1]heptan-2-one, 1,7,7-trimethyl-, (.+/-.)- (4.885%), Bicyclo[3.1.1]hept-2-ene, 2,6-dimethyl-6-(4-methyl-3-pentenyl)- (4.680%), Naphthalene, 1,2,3,5,6,8a-hexahydro-4,7-dimethyl-1-(1-methylethyl)-, (1S-cis)- (4.139%), 3-Cyclohexen-1-ol, 4-methyl-1-(1-methylethyl)-, (R)- (3.538%), Copaene (2.749%), Bicyclo[2.2.1] heptan-2-ol, 1,7,7-trimethyl-, (1S-endo)- (2.643%), Acetic acid, 1,7,7-trimethyl-bicyclo [2.2.1]hept-2-yl ester (2.536%), Cyclohexane, bromo- (2.530%), 1,6,10-Dodecatriene, 7,11- dimethyl-3-methylene-, (E)- (1.725%), Naphthalene, 1,2,3,4,4a,5,6,8a-octahydro-7-methyl-4- methylene-1-(1-methylethyl)-, (1.alpha.,4a.beta.,8a.alpha.)- (1.265%), Bicyclo[4.4.0]dec-1-ene, 2-isopropyl-5-methyl-9-methylene- (1.174%), (-)-Isosativene (1.149%), 11-Tetradecen-1-ol acetate (1.118%), .alpha.-Cadinol (1.061%), etc. The analytical result suggested that the helium volatiles from the fresh branches of C. camphora could be used as industrial materials of biomedicines, spicery and food industry.

Abstract: Cinnamomum camphora has been used to heal some specific diseases in the Chinese Folk for a long time. In order to explore the wide utilization in biomedicine and spicery, the chemical components of helium volatiles from the fresh branches of C. camphora were studied by TD-GC/MS. The analytical result by TD-GC/MS showed that 50 peaks were obtained from the helium volatiles from the fresh branches of C. camphora and 46 chemical compounds representing 99.993% of the total areas were identified. The results showed that the main components were as: Bicyclo[2.2.1]heptan-2-one, 1,7,7-trimethyl-, (1R)- (9.620%), 3-Cyclohexene-1- methanol, .alpha.,.alpha.4-trimethyl- (9.425%), 1,3-Benzodioxole, 5-(2-propenyl)- (8.223%), Bicyclo[2.2.1]heptane, 2-methyl-3-methylene-2-(4-methyl-3-pentenyl)-, (1S-exo)- (7.541%), Tricyclo[2.2.1.0(2,6)]heptane, 1,7-dimethyl-7-(4-methyl-3-pentenyl)-, (-)- (6.884%), Bicyclo[3.1.1] hept-2-ene, 2,6-dimethyl-6-(4-methyl-3-pentenyl)- (6.050%), Bicyclo[2.2.1]heptan-2-one, 1,7,7- trimethyl-, (1S)- (4.678%), 1,3-Benzodioxole, 5-(2-propenyl)- (4.500%), Naphthalene, 1,2,3,5,6,8a- hexahydro-4,7-dimethyl-1-(1-methylethyl)-, (1S-cis)- (4.491%), 3-Cyclohexen-1-ol, 4-methyl-1- (1-methylethyl)-, (R)- (4.254%), Copaene (4.120%), Tricyclo[2.2.1.0(2,6)]heptane, 1,7-dimethyl-7- (4-methyl-3-pentenyl)-, (-)- (4.097%), Acetic acid, 1,7,7-trimethyl-bicyclo[2.2.1]hept-2-yl ester (3.574%), Borneol 3.334%), 3-(4-N,N-Dimethylaminophenyl)propenoic acid, 2- (diethoxyphosphinyl)-, ethyl ester (2.809%), Eucalyptol (2.096%), 1,6,10-Dodecatriene, 7,11- dimethyl-3-methylene-, (Z)- (1.885%), (-)-Isosativene (1.664%), 1,6,10-Dodecatrien-3-ol, 3,7,11-trimethyl- (1.407%), Cyclohexene, 1-methyl-4-(5-methyl-1-methylene-4-hexenyl)-, (S)- (1.218%), 1,4-Methanoazulene, decahydro-4,8,8-trimethyl-9-methylene-, [1S-(1.alpha.,3a.beta., 4.alpha.,8a.beta.)]- (1.174%), .alpha.-Caryophyllene (1.156%), etc. The analytical result suggested that the helium volatiles from the fresh branches of C. camphora can be applicable to biomedicine and spicery industrial materials.

Abstract: The chemical components of helium volatiles from the fresh branches of Cinnamomum camphora were studied by TD-GC/MS. The analytical result by 60°С-based TD-GC/MS showed that 55 peaks were obtained from the helium volatiles from the fresh branches of Cinnamomum camphora and 53 chemical compounds were identified. The results showed that the main components were as: Bicyclo[2.2.1]heptan-2-one, 1,7,7-trimethyl-, (1R)- (15.4328%), 1,3-Benzodioxole, 5-(2-propenyl)- (14.881%), Tricyclo[2.2.1.0(2,6)]heptane, 1,7-dimethyl-7-(4-methyl-3-pentenyl)-, (-)- (12.694%), p-menth-1-en-8-ol (9.832%), Bicyclo[2.2.1]heptane, 2-methyl-3-methylene-2-(4-methyl-3- pentenyl)-, (1S-exo)- (6.143%), 1,6,10-Dodecatrien-3-ol, 3,7,11-trimethyl- (5.365%), Bicyclo[3.1.1] hept-2-ene, 2,6-dimethyl-6-(4-methyl-3-pentenyl)- (4.527%), Naphthalene, 1,2,3,5,6,8a- hexahydro-4,7-dimethyl-1-(1-methylethyl)-, (1S-cis)- (4.129%), 3-Cyclohexen-1-ol, 4-methyl-1- (1-methylethyl)- (2.965%), Borneol (2.627%), Bicyclo[2.2.1]heptan-2-ol, 1,7,7-trimethyl-, acetate, (1S-endo)- (2.586%), Copaene (2.534%), 1,6,10-Dodecatriene, 7,11-dimethyl-3-methylene-, (Z)- (1.612%), (-)-Isosativene (1.121%), etc. The analytical result suggested that the helium volatiles from the fresh branches of Cinnamomum camphora could be used as industrial materials of biomedicines and spicery.

Abstract: In order to evaluate its potential health risk to human, the volatiles of the dried Pinus biomass were adsorbed and determined by TD-GC-MS. And the main constituents of volatiles at 210°С were 1,4-methanoazulene, decahydro-4,8, 8-trimethyl-9-methylene-(11.75%), acetic acid (6.38%), 1,4-methanoazulen-3-ol, decahydro-1,5,5,8a-tetramethyl-(5.76%), 1r-.alpha.-pinene (5.18%), 1-phenanthrenecarboxaldehyde, 7-et henyl-1,2,3,4,4a,4b,5,6,7,9,10,10a -dodecahydro- 1,4a,7-trimethyl-(4.78%), 2-furancarboxaldehyde, 5-(hydroxym ethyl)- (4.39%), 2-methyliminoperhydro-1,3-oxazine (3.67%), 1,3-benzodioxole, 5-(2-propenyl)- (3.33%), etc. So the dried Pinus biomass had biohealth function.

Abstract: In order to evaluate environmental friendly characteristics, the volatiles of Pinus massoniana biomass were adsorbed and determined by TD-GC-MS. And the main constituents of volatiles at 190°С were 1,4-methanoazulene, decahydro-4,8, 8-trimethyl-9-methylene-(30.62%), 1,4-methanoazulen-9-ol, decahydro-1,5,5,8a-tetramethyl-(10.46%), 1r-.alpha.-pinene(7.44%), 1,6,10-dodecatriene, 7,11-dimethyl-3-methylene-, (e)- (4.88%), tricyclo[5.4.0.0(2,8)]undec-9-ene, 2,6,6,9-tetramethyl-(4.31%), bicyclo[2.2.1]heptan-2-one, 1,7,7- trimethyl-, (1r)- (3.23%), borneol (3.08%), 1,3-benzodioxole, 5-(2-propenyl)- (2.85%), caryophyllene oxide(2.70%), 1-phenanthrene -carboxaldehyde, 7-ethenyl-1,2,3,4,4a,4b,5,6,7,9,10,10a-dodecahydro-1,4a,7- trimethyl- (2.30%), acetic acid(2.22%), etc. So the Pinus biomass was safe at 190°С carbonization.

Abstract: Pinus massoniana Lamb has been used to heal some specific diseases in the Chinese Folk for a long time. In order to explore the wide utilization in biomedicine and spicery, the chemical components of helium extractives from the fresh wood of Pinus massoniana Lamb was studied by TD-GC/MS. The results showed that the main components were 1,4-Methanoazulene, decahydro-4,8, 8-trimethyl-9-methylene- (29.98%), 1,4-Methanoazulen-9-ol, decahydro-1,5,5,8a-tetramethyl- (10.32%), 1R-.alpha.-Pinene (8.33%), 1,2,4-Methenoazulene, decahydro-1, 5,5,8a-tetramethyl- (4.72%), Borneol (2.99%), Thujopsene (2.80%), 1-Phenanthrenecarboxaldehyde, 7-ethenyl-1,2,3,4,4a,4b, 5,6,7,9,10,10a- dodecahydro-1,4a,7-trimethyl- (2.53%), Bicyclo[2.2.1]heptan-2-one, 1,7,7- trimethyl-, (1R)- (2.52%), Caryophyllene oxide (2.40%), Tricyclo[5.4.0.0(2,8)]undec-9-ene, 2,6,6,9-tetramethyl- (2.32%), 1,3-Benzodioxole, 5-(2-propenyl)- (2.274%), Acetic acid (2.07%), Eucalyptol (1.70%), Eucalyptol (1.70%), Benzaldehyde, 4-hydroxy- (1.61%), etc. The analytical result suggested that the helium extractives from the fresh wood of Pinus massoniana Lamb could be used as industrial materials of biomedicines and spicery.

Abstract: Pinus massoniana resources have been used as meidicine for a long time. Therefore, the 120°С volatiles of Pinus massoniana biomass were identified by TD-GC/MS. The main function components of Pinus massoniana Lamb biomass at 120°С were 1,4-methanoazulene, decahydro-4,8, 8-trimethyl-9-methylene-(36.04%), 1,4-methanoazulen-3-ol, decahydro-1,5,5,8a-tetramethyl-(13.95%), .alpha.-pinene(9.36%), 1,2,4-methenoazulene,decahydro-1,5,5,8a-tetramethyl-(5.95%), tricyclo[5.4.0.0(2,8)]undec-9-ene, 52,6,6,9-tetramethyl-(3.74%), caryophyllene oxide(2.9%), tricyclo[5.4.0.0(2,8)]undec-9-ene, 2,6,6,9-tetramethyl-(2.87%), bicyclo[2.2.1]heptan-2-one, 1,7,7- trimethyl-, (1r)- (2.82%), p-menth-1-en-8-ol(1.92%), 1,3-benzodioxole, 5-(2-propenyl)- (1.4%), (+)-longicamphenylone(1.39%), eucalyptol(1.21%), etc. It showed that the volatiles of Pinus massoniana Lamb biomass at 120°С had some biohealth function.

Abstract: Pinus has been put into mass production. However, many heat release volatiles would produce air pollution during drying process. Therefore, the heat release behavior of Pinus biomass was studied by TD-GC/MS. The main constituents were at 100°С 1,4-methanoazulene,decahydro-4,8, 8-trimethyl-9-methylene-(30.6%), 1,4-methanoazulen-9-ol,decahydro-1,5,5,8a-tetramethyl-(14.85%), 1,2,4-methenoazulene, decahydro-1,5,5,8a-tetramethyl-(8.56%), 1r-.alpha.-pinene(7.92%), epiglobulol(4.57%), bicyclo[2.2.1]heptan- 2-one, 1,7,7- trimethyl-, (1r)- (4.33%), caryophyllene oxide(3.37%), etc. And the main constituents at 110°С were 1,4-methanoazulene, decahydro-4,8, 8-trimethyl-9-methylene-(40.31%), 1,4-methanoazulen-9-ol, decahydro-1,5,5,8a-tetramethyl-(15.35%), .alpha.-pinene(8.88%), bicyclo [2.2.1]heptan-2-one, 1,7,7- trimethyl-, (1r)- (5.73%), cyclohexane-1,3-dione, 2-allylamin omethylene-5,5-dimethyl-(5.24%), naphthalene, 1,1'-(1,2-ethanediyl) bis[decahydro-(4.83%), spiro[5.5]undec-2-ene,3,7,7-trime thyl-11-methylene-(4.05%), etc. The heat release volatiles of Pinus biomass was safe to people during drying process.

Abstract: In order to evaluate its potential health risk to human settlements, the volatiles of Pinus massoniana biomass which was used indoor, were adsorbed and determined by TD-GC-MS. And the main constituents of volatiles at 40°С were 1,4-methanoazulene,decahydro-4,8,8-trimethyl-9- methylene-(53.09%), bicyclo[2.2.1]heptan-2-one, 1,7,7- trimethyl-(11.4%), cyclooctasiloxane, hexadecamethyl-(9.28%), octasiloxane, 1,1,3,3,5,5,7,7,9,9, 11,11,13,13,15,15-hexadecamethyl- (5.09%), 1,3-benzodioxole, 5-(2-propenyl)- (3.19%), p-menth-1-en-8-ol(2.93%), tricyclo[5.4.0.0 (2,8)] \undec-9-ene, 2,6,6,9-tetramethyl-(2.43%), eucalyptol(2.03%), etc. The main constituents of volatiles at 60°С were 1,4-methanoazulene,decahydro-4,8, 8-trimethyl-9-methylene-(43.43%), bicyclo[2.2.1]heptan-2-one, 1,7,7- trimethyl-, (1r)- (7.34%), 1,6,10-dodecatriene, 7,11-dimethyl-3- methylene-(6.63%), 1,4-methanoazulen-9-ol,decahydro-1,5,5,8a-tetramethyl-(5.9%), octasiloxane, 1,1,3,3,5,5,7,7,9,9, 11,11,13,13,15,15-hexadecamethyl-(4.24%), 1r-.alpha.-pinene(4.1%), etc. So the Pinus massoniana biomass was safe under 60°С.