Global ETD Search
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 9 of 9 for “"Microbiological assays"”.
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A microbiological and molecular study of campylobacter and related species isolated from ostriches (Struthio camelus)
… in their faeces. In this study, qualitative microbiological assays were performed on liver, caecum and colon samples predominantly from healthy ostriches presented for slaughter, to detect any Epsilonproteobacteria present. Samples were collected at an abattoir in the Western Cape between …
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The amino acid composition of chinchilla fur in relation to the fur-chewing syndrome
… three methods for analyses The methods included microbiological assays of Barton-Wright(5) and two column chromatography techniques of Moore and Stein (7, 8). The data obtained from this investigation indicate that of the 16 amino acids analyzed, only one (lysine) was forum to be significantly …
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Study of antimicrobial and antioxidant properties of new materials for development of active food packaging
… the overnight incubation required by classical microbiological assays. Furthermore, Raman imaging was employed to detect the spatial distribution of different biomolecules at single cell level. Then, the antibacterial properties of innovative silver and carbon-based nanosystems and their …
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Bio-enrichment of vitamin B12 in plant-based food via fermentation
… Vitamin B12 levels were quantified using microbiological assays and HPLC-MS/MS during both strain selection and fermentation. Additionally, genetic analyses were conducted to investigate gene clusters involved in B12 biosynthesis and their regulation. Only a limited number of Lactobacillus …
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Rational Development of New Inhibitors of Lipoteichoic Acid Synthase
… using various biophysical, biochemical and microbiological assays. My project can broadly be sub-divided into three phases: (a) identification of small molecule binding “hot spots”, (b) optimization of existing inhibitor and (c) discovery of new hits. Through a systematic use of different …
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Size Dependent Antimicrobial Properties of Sugar Encapsulated Gold Nanoparticles
… size and also their concentration. The microbial assays revealed the dGNPs to be bacteriostatic as well as bactericidal. The dGNPs exhibited their bactericidal action through the disruption of the bacterial cell membrane causing leakage of cytoplasmic content. The overall outcomes of this study …
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Dye Marking of Antibiotics Used in Treatment of Mastitis in Dry and Lactating Cows
… in milk can be done by direct methods such as microbiological assays. The Food and Drug Administration (FDA) recognizes the Sarcina lutea cylinder plate method for assaying for penicillin quantitatively. A sensitivity of 0.01 ppm is possible. The method is-tedious and time consuming. Many other …
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Dye Marking of Antibiotics Used in Treatment of Mastitis
… methods. Direct control methods are conventional microbiological assays. Problems associated with direct control methods are: a) they are slow, the Food and Drug Administration (FDA) approved cylinder plate assay requires 16 to 18 h incubation time; b) they are tedious; and c) they require trained …