Evaluation of the catalytic activity of lipases immobilized on chrysotile for esterification
In the present work, the ester synthesis in organic media catalyzed by lipases immobilized on chrysotile was studied. Lipases of different sources (Mucor javanicus, Pseudomonas cepacia, Rhizopus oryzae, Aspergillus niger and Candida rugosa) were immobilized on chrysotile, an inexpensive magnesium si...
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| Format: | Article |
| Language: | English |
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Academia Brasileira de Ciências
2003-01-01
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| Series: | Anais da Academia Brasileira de Ciências |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652003000200003 |
| _version_ | 1830374175969116160 |
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| author | Silva Jane E. S. Jesus Paulo C. |
| author_facet | Silva Jane E. S. Jesus Paulo C. |
| author_sort | Silva Jane E. S. |
| collection | DOAJ |
| description | In the present work, the ester synthesis in organic media catalyzed by lipases immobilized on chrysotile was studied. Lipases of different sources (Mucor javanicus, Pseudomonas cepacia, Rhizopus oryzae, Aspergillus niger and Candida rugosa) were immobilized on chrysotile, an inexpensive magnesium silicate, and used for esterification of hexanoic, octanoic and lauric acid with methanol, ethanol, 1-butanol and 1-octanol at 25ºC in hexane as solvent. The best results were obtained with Mucor javanicus lipase and lauric acid giving yields of 62-97% of ester. |
| first_indexed | 2024-12-20T07:33:05Z |
| format | Article |
| id | doaj.art-3c443b5d4a464242af30885fae41768e |
| institution | Directory Open Access Journal |
| issn | 0001-3765 1678-2690 |
| language | English |
| last_indexed | 2024-12-20T07:33:05Z |
| publishDate | 2003-01-01 |
| publisher | Academia Brasileira de Ciências |
| record_format | Article |
| series | Anais da Academia Brasileira de Ciências |
| spelling | doaj.art-3c443b5d4a464242af30885fae41768e2022-12-21T19:48:22ZengAcademia Brasileira de CiênciasAnais da Academia Brasileira de Ciências0001-37651678-26902003-01-01752157162Evaluation of the catalytic activity of lipases immobilized on chrysotile for esterificationSilva Jane E. S.Jesus Paulo C.In the present work, the ester synthesis in organic media catalyzed by lipases immobilized on chrysotile was studied. Lipases of different sources (Mucor javanicus, Pseudomonas cepacia, Rhizopus oryzae, Aspergillus niger and Candida rugosa) were immobilized on chrysotile, an inexpensive magnesium silicate, and used for esterification of hexanoic, octanoic and lauric acid with methanol, ethanol, 1-butanol and 1-octanol at 25ºC in hexane as solvent. The best results were obtained with Mucor javanicus lipase and lauric acid giving yields of 62-97% of ester.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652003000200003chrysotilelipasesesters |
| spellingShingle | Silva Jane E. S. Jesus Paulo C. Evaluation of the catalytic activity of lipases immobilized on chrysotile for esterification Anais da Academia Brasileira de Ciências chrysotile lipases esters |
| title | Evaluation of the catalytic activity of lipases immobilized on chrysotile for esterification |
| title_full | Evaluation of the catalytic activity of lipases immobilized on chrysotile for esterification |
| title_fullStr | Evaluation of the catalytic activity of lipases immobilized on chrysotile for esterification |
| title_full_unstemmed | Evaluation of the catalytic activity of lipases immobilized on chrysotile for esterification |
| title_short | Evaluation of the catalytic activity of lipases immobilized on chrysotile for esterification |
| title_sort | evaluation of the catalytic activity of lipases immobilized on chrysotile for esterification |
| topic | chrysotile lipases esters |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652003000200003 |
| work_keys_str_mv | AT silvajanees evaluationofthecatalyticactivityoflipasesimmobilizedonchrysotileforesterification AT jesuspauloc evaluationofthecatalyticactivityoflipasesimmobilizedonchrysotileforesterification |