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Condition: New.
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Condition: New. Natural products as potential sources of inhibitors of bacterial quorum-sensing (Paperback or Softback).
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Condition: As New. Unread book in perfect condition.
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Condition: New.
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PAP. Condition: New. New Book. Shipped from UK. Established seller since 2000.
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Biological effects of radiofrequency
Seller: PBShop.store UK, Fairford, GLOS, United Kingdom
Seller rating 5 out of 5 stars
PAP. Condition: New. New Book. Shipped from UK. Established seller since 2000.
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Condition: As New. Unread book in perfect condition.
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Natural Products As Potential Sources of Inhibitors of Bacterial Quorum-sensing
Seller: GreatBookPricesUK, Woodford Green, United Kingdom
Seller rating 5 out of 5 stars
Condition: As New. Unread book in perfect condition.
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Natural Products As Potential Sources of Inhibitors of Bacterial Quorum-sensing
Seller: GreatBookPricesUK, Woodford Green, United Kingdom
Seller rating 5 out of 5 stars
Condition: New.
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Altered production of organic acid and pigments by microbes under influence of microwave radiation: Microwave Mutagenesis (Paperback or Softback)
Language: English
Published by Grin Verlag 1/15/2015, 2015
ISBN 10: 3656871191 ISBN 13: 9783656871194
Paperback or Softback. Condition: New. Altered production of organic acid and pigments by microbes under influence of microwave radiation: Microwave Mutagenesis. Book.
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Biological effects of radiofrequency
Seller: GreatBookPricesUK, Woodford Green, United Kingdom
Seller rating 5 out of 5 stars
Condition: New.
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Condition: New.
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Biological effects of radiofrequency
Seller: GreatBookPricesUK, Woodford Green, United Kingdom
Seller rating 5 out of 5 stars
Condition: As New. Unread book in perfect condition.
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Probiotics, Prebiotics, Synbiotics, and Postbiotics: Human Microbiome and Human Health
Seller: Ria Christie Collections, Uxbridge, United Kingdom
Seller rating 5 out of 5 stars
£ 45.68
£ 11.98 shipping
Ships from United Kingdom to U.S.A.Quantity: Over 20 available
Add to basketCondition: New. In.
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Taschenbuch. Condition: Neu. Druck auf Anfrage Neuware - Printed after ordering - Exam Revision from the year 2015 in the subject Biology - General, Basics, Nirma University, language: English, abstract: This is a compilation of more than 100 multiple choice questions pertaining to different areas of biological sciences. This compilation is intended to be helpful to those who are preparing for appearing in any of the competitive examinations at various levels. Questions mainly are from the fields of Microbiology, Biochemistry, Biotechnology, Immunology, Biomedical Engineering, etc. All correct answers are put in bold face for immediate reference of the reader. Teachers may also find some questions from this compilation suitable for inclusion in various test papers.
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Altered Production of Organic Acid and Pigments by Microbes Under Influence of Microwave Radiation
Seller: GreatBookPricesUK, Woodford Green, United Kingdom
Seller rating 5 out of 5 stars
Condition: New.
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Biological effects of radiofrequency
Language: English
Published by GRIN Verlag, GRIN Verlag Mär 2014, 2014
ISBN 10: 3656608601 ISBN 13: 9783656608608
Taschenbuch. Condition: Neu. Neuware -Scientific Study from the year 2013 in the subject Biology - Micro- and Molecular Biology, grade: A, Nirma University (Institute of Science), language: English, abstract: Increasing applications of MW radiation has led to concerns globally due to the suspected bio effects associated with its exposure. Effect of MW, thermal and/or athermal, is inconclusive, complex, and controversial in literature. Thermal effect causes thermogenic effect while athermal effects are other than heat and such effects reported as somatic effect and/or genetic effect.This study basically deals with the athermal effects and is aimed at investigating the hypothesis that the exposure of microbial cells to MW (low power) may cause athermal effect, which affect on growth of microbes, enzyme activity, and production of exopolysaccharides. Furthermore, we have also checked the effect of different intracellular enzymes on MW treated bacteria. Our study also gives information that MW athermal effects causes changes at genetic level and can be passed on to next generation.There are numerous and increasing applications of MW energy and technology in the industries, in homes, in medical, research institutions etc., and there is greater awareness and concern of the public over the suspected potential health hazards associated with such exposures [ICNIRP Guidelines, 1998]. There is therefore, a need for deeper understanding of the bio-effects of exposure to this radiation. Due to the ease of handing them in laboratory, microorganisms can be conveniently used to study the effect of MW on living systems. Besides, employing mutagenic frequencies of MW radiation for microbial strain improvement can be of considerable industrial significance.Objectives:1. To investigate the effect of low power MW ona. Growthb. Extracellular enzyme (amylase and pectinase) activity in Bacillus subtilis, Streptococcus mutans and Pectobacterium carotovora.c. Exopolysaccharide (EPS) in S. mutans and Xanthomonas campestris.2. To study the effect of low power MW ona. Growthb. Protein synthesisc. Intracellular enzyme (Glucose-6-phosphatase and ż- galactosidase) activity3. To investigate mutagenic effect of MW on EPS production in X. campestris.
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Taschenbuch. Condition: Neu. Druck auf Anfrage Neuware - Printed after ordering - Scientific Study from the year 2014 in the subject Biology - Micro- and Molecular Biology, grade: A, Nirma University (Institute of Science), course: M.Sc., language: English, abstract: Objective: To investigate the effect of (i) seed extracts of Pongamia pinnata, Pyrus pyrifolia, and Manilkara hexandra, (ii) bacterial pigment prodigiosin, and (iii) three organic solvents (ethanol, methanol, and DMSO), on quorum sensing (QS) in Chromobacterium violaceum.Methods: C. violaceum was challenged with plant extracts prepared by microwave assisted extraction (MAE) method, prodigiosin, and organic solvents. Effect of these test substances on C. violaceum growth, and quorum sensing regulated pigment (violacein) production was studied by broth dilution assay. High performance liquid chromatography (HPLC) was also applied to generate chromatographic fingerprint of the active extracts. Effect of sub-MIC level of the antibiotic streptomycin on quorum sensing regulated pigment production was also studied.Results: P. pinnata seed extracts and prodigiosin were found to possess anti-QS, and M. hexandra and P. pyrifolia seed extracts to possess QS-enhancing effect in C. violaceum. DMSO was found to enhance violacein production, whereas ethanol and methanol reduced violacein production in C. violaceum. Streptomycin at sub-MIC level was able to significantly arrest QS-regulated pigment production in C. violaceum and S. marcescens.Conclusion: Prodigiosin and the seed extracts used in this study could affect quorum sensing in C. violaceum to a notable extent. Results of this study also emphasizes the importance of inclusion of appropriate solvent controls (negative controls) in bioassays designed for screening of antimicrobial and/or anti-QS compounds. Antipathogenic potential of low concentrations of streptomycin was also demonstrated.
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Microwave Sterilization of Biological Media
Language: English
Published by Editorial Academica Espanola, 2011
ISBN 10: 3846536776 ISBN 13: 9783846536773
Condition: New. pp. 100.
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Taschenbuch. Condition: Neu. Natural products as potential sources of inhibitors of bacterial quorum-sensing | Vijay Kothari (u. a.) | Taschenbuch | 36 S. | Englisch | 2015 | GRIN Verlag | EAN 9783656871217 | Verantwortliche Person für die EU: GRIN Publishing GmbH, Waltherstr. 23, 80337 München, info[at]grin[dot]com | Anbieter: preigu.
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Taschenbuch. Condition: Neu. Druck auf Anfrage Neuware - Printed after ordering - Scientific Study from the year 2013 in the subject Biology - Micro- and Molecular Biology, grade: A, Nirma University (Institute of Science), language: English, abstract: Hydrocarbon contamination of marine ecosystems has been a major environmental concern. Hydrocarbon metabolizing capacity of four halotolerant bacteria (Bacillus atrophaeus, Halomonas shengliensis, Halomonas koreensis, and Virgibacillus salarius) isolated from saline soil of Khambhat, India was investigated. Presence of catechol metabolizing enzymes (catechol 2,3 dioxygenase, chlorocatechol 1,2 dioxygenase, and protocatechuate 3,4 dioxygenase) was checked in V. salarius, as only this among all the test organisms could grow on the hydrocarbon substrates used, and compared with Pseudomonas oleovorans. Effect of salinity of the growth medium on activity of catechol metabolizing enzymes was also studied. Catechol 2,3 dioxygenase activity in both the organisms was more susceptible to increase in salinity of the growth medium than chlorocatechol 1,2-dioxygenase activity. To thebest of our awareness, this is the first report of catechol metabolism in V. salarius. V. salarius was found to be capable of weak biofilm formation. As V. salarius is capable of growing at high salt concentration, alkaline pH, hydrocarbon degradation, and also of growth in presence of various metal ions, it can be an attractive candidate for bioremediation of marine oil spills. Organisms like V. salarius can also serve as a model for multiple stress tolerance in prokaryotes.
