Zobrazeno 1 - 10
of 70
pro vyhledávání: '"K. Ampon"'
Autor:
K. Ampon
Publikováno v:
Journal of Chemical Technology & Biotechnology. 55:185-190
Trypsin has been immobilized by adsorption onto Amberlite XAD-7 beads. The Michaelis constant (Km) of the enzyme was increased about sevenfold following the immobilization. Its rate of penetration into the porous beads was determined by staining the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::79176ac6b0a71c5a94c8c744c143bd31
https://doi.org/10.1002/jctb.280550213
https://doi.org/10.1002/jctb.280550213
Publikováno v:
Journal of Molecular Catalysis B: Enzymatic. 3:171-176
Lipase from Candida rugosa was chemically modified by reductive alkylation with aldehydes of various chain lengths. The derivatised lipases showed a higher esterification activity compared to native enzyme. The degree of activity enhancement depended
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::38058fecf2c1b5cef456eadf66abac51
https://doi.org/10.1016/s1381-1177(96)00054-9
https://doi.org/10.1016/s1381-1177(96)00054-9
Autor:
Raja Nor Zaliha Raja Abdul Rahman, Abu Bakar Salleh, Mahiran Basri, Mansor Bin Ahmad, C. N. A. Razak, Wan Md Zin Wan Yunus, A. C. Heng, K. Ampon
Publikováno v:
Journal of the American Oil Chemists' Society. 74:113-116
A mycelial lipase from Rhizopus rhizopodiformis was prepared in fragment form. The lipase was examined to catalyze the alcoholysis of palm oil mid-fraction (PMF) in organic solvents. High percentage conversions of PMF to alkyl esters were achieved wh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::50a7292fedce9334b1ac470a9c7c7b5a
https://doi.org/10.1007/s11746-997-0154-5
https://doi.org/10.1007/s11746-997-0154-5
Publikováno v:
Journal of Chemical Technology & Biotechnology. 67:157-163
Aspergillus flavus produces a lipase (EC 3.1.1.3) which is partly bound to the mycelium during growth. The production of the mycelium-bound lipase is concomitant with growth, and declines when growth ceases. Maximum productivity of the enzyme is obta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::312e47a7326a4e3d5adb95708f8522a0
https://doi.org/10.1002/(sici)1097-4660(199610)67:2<157::aid-jctb533>3.0.co
https://doi.org/10.1002/(sici)1097-4660(199610)67:2<157::aid-jctb533>3.0.co
In-situ crosslinking of Aspergillus flavus lipase: Improvement of activity, stability and properties
Publikováno v:
Biotechnology Letters. 18:1169-1174
The mycelium-bound lipase of Aspergillus flavus was stabilised by cross-linkage using glutaraldehyde or methylglyoxal. Lipase activity was enhanced by up to 48% by treatment with methylglyoxal but not by glutaraldehyde. Cross-linking with methylglyox
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f83b094d2b3c551d60261f33d9dae7c9
https://doi.org/10.1007/bf00128587
https://doi.org/10.1007/bf00128587
Autor:
K. Ampon, Abu Bakar Salleh, C. N. A. Razak, D. Mohd, Zainoha Zakaria, Mahiran Basri, W. M. Z. Yunus
Publikováno v:
Annals of the New York Academy of Sciences. 799:157-163
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::70c1ad93f7db77b36da0e90634a398a2
https://doi.org/10.1111/j.1749-6632.1996.tb33193.x
https://doi.org/10.1111/j.1749-6632.1996.tb33193.x
Autor:
C. N. A. Razak, Abu Bakar Salleh, Mahiran Basri, K. Ampon, Wong Soo Yoong, Wan Md Zin Wan Yunus
Publikováno v:
Journal of Chemical Technology & Biotechnology. 66:169-173
Lipase from Candida rugosa was immobilized on three different supports, i.e. Amberlite XAD7, poly(methylmethacrylate) (PMMA) and celite. With the conditions tested, maximum adsorption can be achieved after 30 min. The activities of the immobilized li
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d16b7686877975f584101e1af5b32d73
https://doi.org/10.1002/(sici)1097-4660(199606)66:2<169::aid-jctb478>3.0.co
https://doi.org/10.1002/(sici)1097-4660(199606)66:2<169::aid-jctb478>3.0.co
Publikováno v:
Journal of Chemical Technology AND Biotechnology. 64:10-16
Monomethoxypolyethylene glycols (PEG) of molecular masses 1900 and 5000 were activated using p-nitrophenyl chloroformate to form PEG–nitrophenyl carbonates (activated PEG) with high yield (96–98%). The activated PEG was covalently attached to Can
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2472d44ce9ca3a821fab1a58e72ecf73
https://doi.org/10.1002/jctb.280640103
https://doi.org/10.1002/jctb.280640103
Publikováno v:
Journal of the American Oil Chemists' Society. 72:407-411
Lipase fromCandida rugosa was modified with several hydrophobic modifiers before being adsorbed onto organic polymer beads. The effects of different enzyme modifiers, supports, solvents, reaction temperatures, fatty acids, and alcohols on the activit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::35307266aee6a73dc35b439c9110a860
https://doi.org/10.1007/bf02636079
https://doi.org/10.1007/bf02636079
Publikováno v:
Annals of the New York Academy of Sciences. 750:246-249
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::80e539a41864f9d2e68fcd89b32f3249
https://doi.org/10.1111/j.1749-6632.1995.tb19960.x
https://doi.org/10.1111/j.1749-6632.1995.tb19960.x