Lipase-catalyzed synthesis of a sugar alcohol-based nonionic surfactant.
Synthesis of three xylitol fatty acid esters, namely xylitol stearate, palmitate and caprate, was performed in hexane using lipase as the biocatalyst. Enzyme screening results indicated that novozym 435 had the highest catalytic activity in the synthesis of ester. The conversion of substrates was si...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English English |
| Published: |
Chemical Publishing Co.
2011
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| Online Access: | http://psasir.upm.edu.my/id/eprint/22283/1/Lipase-catalyzed.pdf |
| _version_ | 1796970130505203712 |
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| author | Adnani, Atena Basri, Mahiran Chaibakhsh, Naz Salleh, Abu Bakar Abdul Rahman, Mohd Basyaruddin |
| author_facet | Adnani, Atena Basri, Mahiran Chaibakhsh, Naz Salleh, Abu Bakar Abdul Rahman, Mohd Basyaruddin |
| author_sort | Adnani, Atena |
| collection | UPM |
| description | Synthesis of three xylitol fatty acid esters, namely xylitol stearate, palmitate and caprate, was performed in hexane using lipase as the biocatalyst. Enzyme screening results indicated that novozym 435 had the highest catalytic activity in the synthesis of ester. The conversion of substrates was significantly increased by using molecular sieve for water removal. The maximum conversions of three fatty acids, stearic acid, palmitic acid and capric acid to xylitol esters were 96, 92 and 88 %, respectively, at the optimum reaction conditions including temperature, 60 °C; time, 18 h; substrate molar ratio, 1; enzyme amount, 0.12 g and molecular sieve amount 4 g in 30 mL solvent. Subsequent analysis by GC-MS indicated that the amount of produced diesters was significantly more than mono, tri and tetra esters. |
| first_indexed | 2024-03-06T07:53:30Z |
| format | Article |
| id | upm.eprints-22283 |
| institution | Universiti Putra Malaysia |
| language | English English |
| last_indexed | 2024-03-06T07:53:30Z |
| publishDate | 2011 |
| publisher | Chemical Publishing Co. |
| record_format | dspace |
| spelling | upm.eprints-222832015-10-09T07:36:27Z http://psasir.upm.edu.my/id/eprint/22283/ Lipase-catalyzed synthesis of a sugar alcohol-based nonionic surfactant. Adnani, Atena Basri, Mahiran Chaibakhsh, Naz Salleh, Abu Bakar Abdul Rahman, Mohd Basyaruddin Synthesis of three xylitol fatty acid esters, namely xylitol stearate, palmitate and caprate, was performed in hexane using lipase as the biocatalyst. Enzyme screening results indicated that novozym 435 had the highest catalytic activity in the synthesis of ester. The conversion of substrates was significantly increased by using molecular sieve for water removal. The maximum conversions of three fatty acids, stearic acid, palmitic acid and capric acid to xylitol esters were 96, 92 and 88 %, respectively, at the optimum reaction conditions including temperature, 60 °C; time, 18 h; substrate molar ratio, 1; enzyme amount, 0.12 g and molecular sieve amount 4 g in 30 mL solvent. Subsequent analysis by GC-MS indicated that the amount of produced diesters was significantly more than mono, tri and tetra esters. Chemical Publishing Co. 2011 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/22283/1/Lipase-catalyzed.pdf Adnani, Atena and Basri, Mahiran and Chaibakhsh, Naz and Salleh, Abu Bakar and Abdul Rahman, Mohd Basyaruddin (2011) Lipase-catalyzed synthesis of a sugar alcohol-based nonionic surfactant. Asian Journal of Chemistry, 23 (1). pp. 388-392. ISSN 0970-7077 http://www.chemical-publishing.com/ English |
| spellingShingle | Adnani, Atena Basri, Mahiran Chaibakhsh, Naz Salleh, Abu Bakar Abdul Rahman, Mohd Basyaruddin Lipase-catalyzed synthesis of a sugar alcohol-based nonionic surfactant. |
| title | Lipase-catalyzed synthesis of a sugar alcohol-based nonionic surfactant. |
| title_full | Lipase-catalyzed synthesis of a sugar alcohol-based nonionic surfactant. |
| title_fullStr | Lipase-catalyzed synthesis of a sugar alcohol-based nonionic surfactant. |
| title_full_unstemmed | Lipase-catalyzed synthesis of a sugar alcohol-based nonionic surfactant. |
| title_short | Lipase-catalyzed synthesis of a sugar alcohol-based nonionic surfactant. |
| title_sort | lipase catalyzed synthesis of a sugar alcohol based nonionic surfactant |
| url | http://psasir.upm.edu.my/id/eprint/22283/1/Lipase-catalyzed.pdf |
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