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Articles 1 - 6 of 6
Full-Text Articles in Food Biotechnology
Studies On The Formation Of Dna-Cationic Lipid Composite Films And Dna Hybridization In The Composites, Murali Sastry, Vidya Ramakrishnan, Mrunalini Pattarkine, Krishna N. Ganesh
Studies On The Formation Of Dna-Cationic Lipid Composite Films And Dna Hybridization In The Composites, Murali Sastry, Vidya Ramakrishnan, Mrunalini Pattarkine, Krishna N. Ganesh
Faculty Works
The formation of composite films of double-stranded DNA and cationic lipid molecules (octadecylamine, ODA) and the hybridization of complementary single-stranded DNA molecules in such composite films are demonstrated. The immobilization of DNA is accomplished by simple immersion of a thermally evaporated ODA film in the DNA solution at close to physiological pH. The entrapment of the DNA molecules in the cationic lipid film is dominated by attractive electrostatic interaction between the negatively charged phosphate backbone of the DNA molecules and the protonated amine molecules in the thermally evaporated film and has been quantified using quartz crystal microgravimetry (QCM). Fluorescence studies …
Poorer European Countries Are Less Concerned About Biotechnology Than Richer Countries, Michael Siegrist
Poorer European Countries Are Less Concerned About Biotechnology Than Richer Countries, Michael Siegrist
RISK: Health, Safety & Environment (1990-2002)
The author examines the relationship between GNP, media coverage, and public perceptions of the utility, risk, and acceptability of medical and food-related applications of biotechnology.
Review Of: Alan Mchughen, Pandora's Picnic Basket: The Potential And Hazards Of Genetically Modified Foods, Shimona Pratap Singh
Review Of: Alan Mchughen, Pandora's Picnic Basket: The Potential And Hazards Of Genetically Modified Foods, Shimona Pratap Singh
RISK: Health, Safety & Environment (1990-2002)
Review of the book: Alan McHughen, Pandora's Picnic Basket: The Potential and Hazards of Genetically Modified Foods (Oxford University Press 2000).Acknowledgements, introduction, glossary and abbreviations, resources, index. ISBN 0-19-850674-0 [277 pp. $25.00 Cloth, 198 Madison Avenue, New York, NY 10016-4314].
Cationic Surfactant Mediated Hybridization And Hydrophobization Of Dna Molecules At The Liquid/Liquid Interface And Their Phase Transfer, Murali Sastry, Ashavani Kumar, Mrunalini Pattarkine, Vidya Ramakrishnan, Krishna N. Ganesh
Cationic Surfactant Mediated Hybridization And Hydrophobization Of Dna Molecules At The Liquid/Liquid Interface And Their Phase Transfer, Murali Sastry, Ashavani Kumar, Mrunalini Pattarkine, Vidya Ramakrishnan, Krishna N. Ganesh
Faculty Works
Hybridization of complementary oligonucleotides mediated by a cationic surfactant at the water/hexane interface leads to hydrophobic, double-helical DNA which may be readily phase transferred to the organic phase and cast into thin films on solid substrates.
Submerged And Solid-State Phytase Fermentation By Aspergillus Niger: Effects Of Agitation And Medium Viscosity On Phytase Production, Fungal Morphology And Inoculum Performance, Maria Papagianni, Sue E. Nokes, Keith Filer
Submerged And Solid-State Phytase Fermentation By Aspergillus Niger: Effects Of Agitation And Medium Viscosity On Phytase Production, Fungal Morphology And Inoculum Performance, Maria Papagianni, Sue E. Nokes, Keith Filer
Biosystems and Agricultural Engineering Faculty Publications
Qualitative relationships between agitation levels and medium viscosity, Aspergillus niger morphology and phytase production were investigated in submerged and solid-state fermentations. Overall phytase production increased with increasing shaker speeds from 150 to 300 rpm, although specific growth rates and phytase production rates were higher at 150 rpm for 72 h from inoculation. Fungal morphology was greatly influenced by agitation with the morphological forms of small pellets and entangled mycelia predominating at 150 rpm, while the free filamentous form was obtained at 300 rpm. Upon inoculation of SSF, increased productivities were obtained from inocula grown at 150 rpm. A shift towards …
Related Enzymatic Activities In Solid-Substrate Fermentation Of Sago Hampas With Pycnoporus Sanguineus, Rifat Ara Matta
Related Enzymatic Activities In Solid-Substrate Fermentation Of Sago Hampas With Pycnoporus Sanguineus, Rifat Ara Matta
Student Works (2000-2009)
Solid substrate fermentation (SSF) of sago pith residue known as 'hampas' with Pycnoporus sanguineus for enzyme production was carried out. Good growth of Pycnoporus sanguineus in SSF was noted on 'hampas' supplemented with 0.38% urea, 0.2% KH₂PO₄ and 0.05% MgSO₄·7H₂O over a period of 30 days. Xylanase, lignin peroxidase and laccase activities were detected in Pycnoporus sanguineus cultures. Maximum xylanase and laccase activities of 5.26U/g of substrate on day 10 of SSF and 14.35U/g on day 15 of SSF of substrate were obtained respectively. The lignin peroxidase activity was less pronounced with an activity of 1.31 U/g of substrate on …