Now showing items 21-30 of 38
Alteration of the growth rate and lag time of Leuconostoc mesenteroides NRRL-B523
(John Wiley & Sons, Inc., 2001-03-20)
Bacterial profile modification is an important enhanced oil recovery technique used to direct injected water into a reservoir's low permeability zone containing trapped crude oil. During water flooding, the use of bacteria ...
Formation of polyol–fatty acid esters by lipases in reverse micellar media
(Wiley Subscription Services, Inc., A Wiley Company, 1992-06-05)
The synthesis of polyol–fatty acid esters has strong implications in such industries as foods, cosmetics, and polymers. We have investigated these esterification reactions employing the polyols ethylene glycol, 2-monoglyceride, ...
Sensitivity improvement in 2D and 3D HCCH spectroscopy using heteronuclear cross-polarization
(Kluwer Academic Publishers; ESCOM Science Publishers B.V. ; Springer Science+Business Media, 1993-07)
A new method, which employs a sequence of heteronuclear-homonuclear-heteronuclear Hartmann-Hahn (HEHOHEHAHA) cross-polarization steps for obtaining through-bond H-C-C-H correlations in larger proteins (M r > 15 kDa), is ...
Protein engineering of penicillinase as affinity ligands for bioprocessing
(Elsevier, 1989)
The active site and the substrate binding site of penicillinase ([beta]-lactamase) from Bacillus licheniformis were altered in this study so that the enzyme retains the specific binding capability to the [beta]-lactam ...
Application of membrane-based preferential transport to whole broth processing
(Wiley Subscription Services, Inc., A Wiley Company, 1997-08-20)
Preferential transport in adsorptive membranes can be used to selectively remove biochemicals directly from fermentation broths. During preferential transport, an adsorbing solute is selectively transported across the ...
Use of coimmobilized biological systems to degrade toxic organic compounds
(Wiley Subscription Services, Inc., A Wiley Company, 1991-07)
The concept of coimmobilizing cell mass (and/or enzyme) and adsorbent in a hydrogel matrix for biodegradation of toxic organic chemicals was introduced. Under defined experimental conditions, the coimmobilized system using ...
Effect of adsorbents on degradation of toxic organic compounds by coimmobilized systems
(Wiley Subscription Services, Inc., A Wiley Company, 1992-03-15)
The use of coimmobilized systems for treatment of toxic organic compounds has been proposed. The proposed approach combines the use of adsorbents and laboratory identified microorganisms immobilized in a protective permeable ...
Esterification reactions of lipase in reverse micelles
(Wiley Subscription Services, Inc., A Wiley Company, 1990-04-05)
The activities of lipase from Candida cylindracea and Rhizopus delemar have been investigated in water/AOT/iso-octane reverse micellar media through the use of two esterification reactions: fatty acid-alcohol esterification ...
A new isolation and purification method for staphylococcal protein A using membrane encapsulated rabbit IgG-agarose
(Wiley Subscription Services, Inc., A Wiley Company, 1989-10-20)
A new isolation and purification method for bioproducts using membrane-encapsulated affinity adsorbents was investigated. The new method involves encapsulation of affinity adsorbents, batch adsorption of the bioproduct ...
zrp2: a novel maize gene whose mRNA accumulates in the root cortex and mature stems
(Kluwer Academic Publishers; Springer Science+Business Media, 1997-10)
A near full-length cDNA clone (pZRP2) was isolated from a cDNA library constructed from maize root mRNAs. The predicted polypeptide has a calculated molecular mass of 66 975 Da, is largely hydrophilic, and contains 26 ...