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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 859 for “"fractionation"”.
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Molecular fundamentals of foam fractionation
Foam fractionation of surfactant and protein solutions is a process dedicated to separate surface active molecules from each other due to their differences in surface activities. The process is based on forming bubbles in a certain mixed solution followed by detachment and rising of bubbles through …
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Some Antecedents of Directional Fractionation
Made available in DSpace on 2014-12-08T23:02:23Z (GMT). No. of bitstreams: 1 7105049.pdf: 6437824 bytes, checksum: ce1ad1ecc10472adbfb2a6d0dc755391 (MD5) Previous issue date: 1970
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On-farm fractionation of milk components
… using cation exchange chromatography. Laboratory fractionations showed that milk could be processed by conventional column chromatography without excessive column backpressures if resin with large particles sizes were used and the temperature was high enough so fat in the milk was malleable; …
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The fractionation of dextran using ethanol
Reviews of molecular weight fractionation based on solubility difference and of gel permeation chromatography theories have been made. Fractional precipitation with ethanol has to be performec at least twice to obtain clinical dextran, which is a polyglucose, from an aqueous solution of dextran …
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A selective fractionation of cellulose nitrate
It has been shown that reproducible selective fractionation so as to separate a desired D. PO. Polymer from 5 different samples of cellulose nitrate, covering a D.S. Range of 10.97-13.35%-N, has been accomplished.
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Fractionation and Analysis of Maya Crude Oil
No abstract prepared.
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Whey Protein Fractionation Using Membrane Separation Technology
… to develop a novel membrane based whey protein fractionation process using a combination of microfiltration and wide pore ultrafiltration processes. In addition to this, a study was conducted to develop a foam fractionation process for the recovery and enrichment of whey proteins.<br /> During …
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Chromatographic Fractionation of the Hydrous Oxide Ions
Chromatography is the name given to a technique for the analysis of mixtures by passage of their solutions through an adsorbent column. The different constituents adsorb at different rates, and advantage is taken of this property to separate the components into different sections of the column. …
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Hydrogen isotope fractionation in ammonia-oxidizing archaea
… PhD thesis investigates the hydrogen isotope fractionation (2εL/W) in Nitrososphaeria to assess the suitability of δ2H of GDGT-derived biphytanes (BP), particularly of BPcren derived from crenarchaeol (δ2HBPcren), as a palaeohydrological proxy. Therefore, the species-dependent variability of …
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Enzymatic modification and fractionation of corn protein
The overall objective of this research was to enhance the utilization of corn refining by-products by improving the functional properties of corn proteins.
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Rare earth fractionation in Hawaiian volcanic rocks.
Massachusetts Institute of Technology. Dept. of Geology and Geophysics. Thesis. 1966. Ph.D.
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Soil phosphorus fractionation and plant growth relationships
… and amounts of phosphorus present in soils. The fractionation of soil phosphorus, based on a series of extractions, is a procedure that has been utilized by many investigators. In this study, this scheme was utilized in an attempt to improve and evaluate the effectiveness of some methods employed …
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Size fractionation of bacterial functional diversity within soils
BIOLOGRTM GN and GP microtitre plates were used to compare functional diversity of large (>0.45 mum, LC) and small (<0.45 mum, SC) cells within A and B horizons of cultivated and forested Guernsey silt-loam soil without enrichment and following enrichment in dilution culture. Without enrichment, SC …
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Activity-guided fractionation of different wheat grain varieties
… aim of this thesis was to use activity-guided fractionation to identify major contributors of wheat to select in vitro bioactivities. Three wheat varieties (BacUp, blue wheat and Wheaton) were screened for in vitro antioxidant activity and blue wheat was additionally screened for starch …
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