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Chemical Engineering

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Articles 511 - 514 of 514

Full-Text Articles in Biomedical Engineering and Bioengineering

Catalytic Properties And Partial Amino Acid Sequence Of An Actinomycete Endo-(1→4)-Β-D-Xylanase From Chainia Species, Kulbhushan B. Bastawde, Louisa B. Tabatabai, Michael M. Meagher, Mandayam C. Srinivasan, Hari G. Vartak, Meenakshi V. Rele, Peter J. Reilly Apr 1991

Catalytic Properties And Partial Amino Acid Sequence Of An Actinomycete Endo-(1→4)-Β-D-Xylanase From Chainia Species, Kulbhushan B. Bastawde, Louisa B. Tabatabai, Michael M. Meagher, Mandayam C. Srinivasan, Hari G. Vartak, Meenakshi V. Rele, Peter J. Reilly

Chemical and Biological Engineering Publications

An endo-(l→4)-β-D-xylanase from a cellulase-free Chainia strain was substantially purified and subjected to amino acid sequencing. The first forty N-terminal amino acid residues show high homology with endo-xylanases from Bacillus pumilus, B. subtilis, B. circulans, andSchizophylum commune, less homology with endo-xylanases from Aureobasidium sp. andPseudomonas fluorescens, and slight homology, but including a possible catalytic Asp residue, with catalytic domains of endo-xylanases from Clostridium thermocellum,Cryptococcus albidus, and an alkalophilic Bacillus and with a cellobiohydrolase fromCellulomonas fimi. The enzyme attacks substrates as small as xylotetraose and has xylosyltransferase activity. It is most active at pH ...


Application Of Cross-Linked Carboxymethyl Cellulose Degradation By 1-Glucosidase And Vaginal Microbes To Toxic Shock Syndrome, Michael R. Sierks, Peter J. Reilly Sep 1985

Application Of Cross-Linked Carboxymethyl Cellulose Degradation By 1-Glucosidase And Vaginal Microbes To Toxic Shock Syndrome, Michael R. Sierks, Peter J. Reilly

Chemical and Biological Engineering Publications

Eleven bacterial and two yeast strains, four of which were previously identified as having activity on a lightly cross-linked carboxymethyl cellulose (CLD-2) found in one type of superabsorbent tampon, were grown on a variety of substrates, most containing cellulosics. None produced detectable amounts of cellulases, but all elaborated beta-glucosidase. None of these 13 strains nor 3 commercially obtained beta-glucosidase preparations could hydrolyze CLD-2, although a commercial cellulase and two other bacterial preparations known to produce cellulases could. Based on these results, it appears that previous work suggesting that the degradation of CLD-2 by vaginal microbes and beta-glucosidase is implicated in ...


Laboratory Wet Milling Of Ensiled Corn Kernels, A. Neryng, Peter J. Reilly Jan 1984

Laboratory Wet Milling Of Ensiled Corn Kernels, A. Neryng, Peter J. Reilly

Chemical and Biological Engineering Publications

Dried and ensiled corn were each steeped with aqueous SO2 or water at initial pHs of 4-5; both were also steeped with aqueous SO2 at pH7. Initial steepwater composition or pH had less effect on yields of individual fractions and recoveries of various components than did differences between dried or ensiled corn. Recovery of starch after milling was appreciably higher with ensiled corn. Protein recovery in gluten decreased, but this was partially counterbalanced by increased protein content of the steepwater from ensiled corn. Results using batchwise steeping or a simulated countercurrent procedure were similar, though the latter gave higher starch ...


A Quantitative Analysis By Emission Spectroscopy Of The Metallic Constituents Of Biological Samples After Treatment By A Carcinogenic Agent, Charles R. Frydrych Dec 1972

A Quantitative Analysis By Emission Spectroscopy Of The Metallic Constituents Of Biological Samples After Treatment By A Carcinogenic Agent, Charles R. Frydrych

Master's Theses

No abstract provided.