Odors from natural rubber - Determination of chemical components
Odorous components emitted from different forms of solid natural rubber (NR) were analyzed using gas chromatography (GC) and gas chromatography/mass spectrometry (GC/MS) associated with headspace sampling technique. The most odorous components from most samples were identified as low molecular weigh...
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th-mahidol.212572018-07-24T10:45:04Z Odors from natural rubber - Determination of chemical components Vipavee Hoven Kesinee Rattanakaran Yasuyuki Tanaka Chulalongkorn University Mahidol University Chemical Engineering Chemistry Materials Science Odorous components emitted from different forms of solid natural rubber (NR) were analyzed using gas chromatography (GC) and gas chromatography/mass spectrometry (GC/MS) associated with headspace sampling technique. The most odorous components from most samples were identified as low molecular weight volatile fatty acids (C2-C5). Other volatile organic contents verified based on characteristic ions of mass spectra included carbonyl compounds, low molecular weight compounds containing nitrogen or sulfur and aromatic compounds. The total content and composition of volatile organic compounds were directly correlated to the rubber quality and drying process. Low-graded NR samples, i.e. STR20 from cup lumps with intense smell had high quantity of volatile organic contents especially low molecular weight volatile fatty acids. On the other hand, high-quality rubber, i.e. deproteinized NR and STR5L from which no smell was detected contained only minute quantity of volatile organic contents. Aromatic components were regarded as other major odorous contents found in ribbed smoked sheet (RSS) samples. The results suggested that the odorous components were the by-products of non-rubber components which had undergone microbial breakdown during storage or thermal degradation during processing. 2018-07-24T03:39:28Z 2018-07-24T03:39:28Z 2004-12-01 Review Gummi, Fasern, Kunststoffe. Vol.57, No.12 (2004), 783-790 01761625 2-s2.0-11144312007 https://repository.li.mahidol.ac.th/handle/123456789/21257 Mahidol University SCOPUS https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=11144312007&origin=inward |
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Chemical Engineering Chemistry Materials Science Vipavee Hoven Kesinee Rattanakaran Yasuyuki Tanaka Odors from natural rubber - Determination of chemical components |
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Odorous components emitted from different forms of solid natural rubber (NR) were analyzed using gas chromatography (GC) and gas chromatography/mass spectrometry (GC/MS) associated with headspace sampling technique. The most odorous components from most samples were identified as low molecular weight volatile fatty acids (C2-C5). Other volatile organic contents verified based on characteristic ions of mass spectra included carbonyl compounds, low molecular weight compounds containing nitrogen or sulfur and aromatic compounds. The total content and composition of volatile organic compounds were directly correlated to the rubber quality and drying process. Low-graded NR samples, i.e. STR20 from cup lumps with intense smell had high quantity of volatile organic contents especially low molecular weight volatile fatty acids. On the other hand, high-quality rubber, i.e. deproteinized NR and STR5L from which no smell was detected contained only minute quantity of volatile organic contents. Aromatic components were regarded as other major odorous contents found in ribbed smoked sheet (RSS) samples. The results suggested that the odorous components were the by-products of non-rubber components which had undergone microbial breakdown during storage or thermal degradation during processing. |
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Chulalongkorn University |
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Chulalongkorn University Vipavee Hoven Kesinee Rattanakaran Yasuyuki Tanaka |
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Review |
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Vipavee Hoven Kesinee Rattanakaran Yasuyuki Tanaka |
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Vipavee Hoven |
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Odors from natural rubber - Determination of chemical components |
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Odors from natural rubber - Determination of chemical components |
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Odors from natural rubber - Determination of chemical components |
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Odors from natural rubber - Determination of chemical components |
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Odors from natural rubber - Determination of chemical components |
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odors from natural rubber - determination of chemical components |
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2018 |
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https://repository.li.mahidol.ac.th/handle/123456789/21257 |
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