Aspergillus niger lipases: induction, isolation and characterization of two lipases from a MZKI Al 16 strain (Record no. 47961)
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| fixed length control field | 01780nam a2200229Ia 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | MX-MdCICY |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20250625153928.0 |
| 040 ## - CATALOGING SOURCE | |
| Transcribing agency | CICY |
| 090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN) | |
| Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) | B-13763 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 250602s9999 xx |||||s2 |||| ||und|d |
| 245 10 - TITLE STATEMENT | |
| Title | Aspergillus niger lipases: induction, isolation and characterization of two lipases from a MZKI Al 16 strain |
| 490 0# - SERIES STATEMENT | |
| Volume/sequential designation | Journal of Molecular Catalysis B: Enzymatic, 2, p.215-222, 1997 |
| 520 3# - SUMMARY, ETC. | |
| Summary, etc. | Aspergillus niger strain MZKI Al 16 was used to produce lipolytic enzymes in submerged culture. Lipase production was induced by addition of olive oil to a complex medium with an initial pH of 5.0. Maximal activity was reached after 70 h in a 15 1 bioreactor at 30°C with aeration of 0.5 vvm and agitation 400 rpm. Optimal temperature and pH conditions for the action of the lipases tested on tributyrin were 45°C and pH 7.0. Triacetin and tributyrin were shown to be the best substrates. The presence of iron and silver ions at low concentrations did not alter the activities. Two enzymes possessing lipase activity were isolated by acetone precipitation followed by ion-exchange chromatography. The molecular weights were 43 kDa and 65 kDa with isoelectric points of pH 4.1 and 4.2, respectively. The higher molecular weight lipase showed preference toward 1- and 3-positions of the triglyceride molecule and was stereoselective for the sn- 1 position with an enantiomeric excess of 20 |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | LIPASES |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | ASPERGILLUS NIGER |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | SELECTIVITY |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Pokorny, D. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Cimerman, A. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Steiner, W. |
| 856 40 - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | <a href="https://drive.google.com/file/d/1JU79kQLMv9NuddfCaAJ6K2npB3RLzIMW/view?usp=drivesdk">https://drive.google.com/file/d/1JU79kQLMv9NuddfCaAJ6K2npB3RLzIMW/view?usp=drivesdk</a> |
| Public note | Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | Clasificación local |
| Koha item type | Documentos solicitados |
| Lost status | Source of classification or shelving scheme | Damaged status | Not for loan | Collection | Home library | Current library | Shelving location | Date acquired | Total checkouts | Full call number | Date last seen | Price effective from | Koha item type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clasificación local | Ref1 | CICY | CICY | Documento préstamo interbibliotecario | 25.06.2025 | B-13763 | 25.06.2025 | 25.06.2025 | Documentos solicitados |