für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In dedication to all the people who lost their lives in a recent dengue epicemic. Due to the prevailing drastic dengue epidemic in many parts of the world, specially in Pakistan, this guide book has been created by Areej Kazmi with a strong support, motivation, guidance and cooperation of Prof.Dr.Neelofer Shaukat. It contain all the aspects related to understanding the basics of the disease , its causes, mode of action, epidemiology, mainly targeting the prevention, control and treatment in a very summarized pattern so that it can serve as a powerful tool in disseminating the information to all the nation. And will surely be one of the most important weapon to fight the war against dengue. Special thanks are for Prof.Dr.Shazia T.Hakim, and Dr.Shakeel Malik(in-charge of Dengue Surveillance Cell Karachi) for their cooperation in providing related information. ····· 1036187838
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This work focuses on comparison of microwave treated media with media sterilized through conventional autoclaving in terms of their ability to support- microbial growth, spore germination, and revival of lyophilized bacterial cultures. Microwave sterilized media support better microbial growth. Both bacteria and yeast are able to achieve higher cell density at a faster growth rate in microwaved media. Microwave treatment is suitable for media of varying compositions. Better retention of nutrient quality in microwave treated growth media due to shorter heat exposure seems to be the major reason for better microbial growth in it. Microwave sterilization can prove an attractive alternative of conventional autoclaving, especially when media are needed for immediate use, and also when high biomass yield is of particular interest. Microwaved media may be of special value for growing recombinant organisms in high densities, so as to produce increased amount of the inserted gene product. ····· 1036187776
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In modern high input agricultural practices pesticides are frequently used to overcome insect-pest problems and to subsequently enhance crop production in different agro-ecosystems. The injudicious application of herbicides after accumulation in soil however poses a major threat to both soil-microbial diversity and the functional ability of rhizosphere microbes which in turn adversely affect the productivity of many agronomically important crops. Considering these, a book entitled Herbicidal Toxicity to Functional Ability of Plant Growth Promoting Rhizobacteria was designed which highlights the toxicity of pesticides including herbicides to rhizobacteria and identifying herbicide resistant rhizobacterial strains with multiple plant growth promoting activities. ····· 1036187726
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Plant Growth Promoting Rhizobacteria (PGPRs) are a heterogeneous group of bacteria that can be found in the rhizosphere, at root surfaces and in association with roots, which can improve the extent or quality of plant growth directly or indirectly. Entomopathogenic nematodes (EPNs), most wealthy and ubiquitous in the soil types, which play a key role in the functioning of food chain and its population richness is an important determinant of soil ecosystem development. In our surveillance report totally, 113 heterotrophic strains (Pseudomonas,Bacillus,Acinetobacter,Alcaligenes,and Enterobacter spp.),and their physiochemical characteristics were isolated and identified from six different crop cultivars such as Rice, Groundnut, Sugarcane, Maize, Banana and Sunflower. In addition 3 EPNs (2 Steinernema and 1 Heterorhabditis) and their symbiotic bacteria, Xenorhabdus and Photorhabdus were also identified and characterized. ····· 1036187561
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Ready-to-eat (RTE) cooked rice have become one of the popular fast foods consumed. They are prepared and sold in eateries, public and traditional markets thus making them readily available for consumption. However, RTE cooked rice like any other fast foods poses a managerial challenge to the food safety authority for continuous surveillance in terms of its safety for consumption. This is because of the presence of bacterial species found in cooked rice. Most food poisoning cases reported so far are associated with bacterial contamination. The book discussed the need for improvement and maintenance of good hygienic practices by food handlers and vendors. This book, therefore, gives a sense of consciousness and responsibility of the need to keep our food safe. The book will be very useful for all food managers, teachers, students, researchers and health personnels. ····· 1036187544
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In present era due to the pollution food born diseases increase many times in comparison to old era. Food borne illness (also referred as food poisoning)is any illness resulting from the consumption of contaminated food, pathogenic bacteria, viruses, or parasites that contaminate food, [US CDC food poisoning guide] rather than chemical or natural toxins.In last I have concluded that Clostridium species were isolated from contaminated food sample and deep soil sample which have same morphology but different in size. Clostridium species are mostly pathogenic bacteria constituting a serious public health problem since its spores are resistant to heat and live long in the soil. Their cell wall was very thick which took more than 1 hrs to retain the malachite green stain. clostridium species gives Gm positive, endospore positive(characteristic property) and endole negative. Clostridium species have the potential neuro toxics which can cause death to human being. The botox toxin used to treat the neuro muscular diseases. It is also used in cosmetics to reduce the age wrinkles from face. In food poisioning cases most of the people affected by clostridium. ····· 1036187417
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Economically importance genera Trichoderma is used more frequently in crop production and plant agriculture, for high yield and in disease management as biological control agents. In present study genetic characterization (rRNA gene amplification) of twenty four indigenous isolates of Trichoderma was carried out through these standard protocols. Biochemical analysis regarding different enzymes was also performed to identify the variability of isolates on the basis of their enzyme production potential. The species selected were Trichoderma koningii, T. pseudokoningii, T. hamatum and T. harzianum. The present investigation sheds light on the nature of molecular and biochemical characterizations of some Trichoderma species and regarding inter/intra specific variations. This data will be useful for identifying fungi and in sequence analysis of rRNA as a next step. The study clearly indicates that some local strains of Trichoderma species like T. harzianum and T. koningii can be exploited in industrial production of fruit juices by cellulase enzyme potential along with further genetic engineering of the selected isolates. ····· 1036187410
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Nine hundred seventy Aspergilli strains were isolated from cellulosic wastes and twenty four strains were screened as cellulolytic and identified as Aspergillus tubengensis, A. niger, A. ficuum, A. awamori str. 1&2, A. foetidus, A. japonicus str.1&2, A. aculeatus str.1&2, A. flavus str.1,2,3 and 4, A. clavatoflavus, A. parasiticus, A. oryzae, A. spersus, A. fumigatus, A. cervinus, A. ochraceus, A. crustosus, A. terreus and A. cremeus. Among them A. oryzae showed the highest reducing sugar level and cellulase activity. The optimum pH, temperature and Km value of crude enzymes were 5.5, 50°C and 0.27%, respectively. The specific activity of purified extra and intracellular enzyme was 64.17 and 43.9 mg/ml although the increase of purification fold was about 53 and 41, respectively. The molecular weight was estimated to be 41,500 and 38,600 by gel filtration and 41,000 and 38,000 by SDS-PAGE. The enzymes gave single band and showed absorption spectra about 260-290 and 240-270 nm and Km value was 0.67% and 0.83%. The activities of the enzymes were increased in presence of Ca2+ , Mn2+ and Mg2+ but completely inhibited by 0.5M EDTA and significantly inhibited by Cu2+, Hg2+ and Fe3+. ····· 1036187395
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Reactive dyes are synthetic dyes, which are increasingly used in the textile industries because of their ease and cost effectiveness in synthesis, firmness and variety in color. The strong color of discharged dyes even at very small concentrations has a huge impact on the aquatic environment caused by its turbidity and high pollution strength. In recent years, there has been an intensive research on fungal decolourization of dye wastewater. It is becoming a promising alternative to replace or supplement present treatment processes. This book experimentally explains various fungi, living or dead cells, which are capable of decolorizing dye wastewaters discusses various mechanisms involved reports some elution and regeneration methods for fungal biomass summarizes the present experimental methods for increasing the biosorption capacity of fungal biomass discusses the effect of various factors on decolorisation with lab experiments. ····· 1036187307
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Book covers almost important points on the subjects of food and industrial microbiology. It contains all important terminologies and vocabulary of the subject in alphabetical order. Short key points and objectives (MCQ s) are useful for the B.Sc. (Microbiology) and B.Tech. (Food Technology) students for preparation of various exams like NET (National Eligibility Test), PG-CET (Post Graduate - Common Entrance Test) exams of ICAR (Indian Council of Agricultural Research). ····· 1036187235
für 50.31€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Enzymes have made a marked impact on today s high technological society and are the central theme around which most biotechnology revolves. Enzymes being efficient as biocatalysts and superior to conventional chemical catalysts are being increasingly employed as replacements or additions for varied applications in various industries. Enzymes have made a marked impact on today s high technological society and are the central theme around which most biotechnology revolves. Enzymes being efficient as biocatalysts and superior to conventional chemical catalysts are being increasingly employed as replacements or additions for varied applications in various industries. The development of microbial enzymes for commercial use is a specialized field which requires. 1. Continuous screening of new and improved strains from potential sources. 2. Scaling up of enzyme production by optimizing conditions of fermentation. 3. Strain improvement of the isolated strains by classics or by recombinant methods of genetic manipulation. 4. Down stream purification technology and formulation of enzymes. ····· 1036187221
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Cyanobacteria (blue-green algae) are a diverse group of photosynthetic, prokaryotic organisms found in freshwater and marine environments. It produces a variety of secondary metabolites with antibiotic, algicide, cytotoxic, immunosuppressive and enzyme inhibiting activities. Screening of various extracts of cyanobacteria from river for antibacterial activity in different in vitro systems revealed strains with interesting effects. A fresh water cyanabacterium, Oscillatoria limosa is a filamentous algae with trichomes ranging from 2 to 6 m in diameter and each cell is 2 m in thick. It has proven to be a prolific source of novel, structurally diverse secondary metabolites. The metabolites from various extracts of Oscillatoria limosa from fresh water showed significant antibacterial activity againast Staphylococcus aureus, Salmonella typhimurium, Klebsiella pneumoniae, Pseudomonas aeroginosa, Escherichia coli, Streptococcus pyogenes, Bacillus subtilis. Therefore this text is particularly emphasized the screening of antibacterial activity of Oscillatoria limosa to made a new drug discovery. ····· 1036187207
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Medical Bacteriology has Great value in Medical Science field, because bacteria is larger group of pathogenic Microorganisms. Bacteria are the most frequent group of micro-organisms present in the soil, and they constitute approximately half of the total microbial biomass. Some Bacteria has great medical importance for diseases causing and antibiotics production. Modern Bacteriology reaches into many fields of human endeavor, including the development of pharmaceutical products while medical Bacteriology deal with pathogenic bacteria, methods of diagnosis and it s treatment. Animal diseases caused by bacteria include tuberculosis, cholera, syphilis, typhoid fever, and tetanus. Some bacteria attack the tissues directly others produce poisonous substances called toxins. Certain bacterial diseases, e.g., tetanus, can be prevented by injection of antitoxin or of serum containing antibodies against specific bacterial antigens immunity to some can be induced by vaccination and certain specific bacterial parasites are killed by antibiotics. New strains of more virulent bacterial pathogens, many of them resistant to antibiotics, have emerged in recent years. ····· 1036187187
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The naphthalene dioxygenase (NDO) from Pseudomonas sp. Strain NCIB 9816-4 is a multicomponent enzyme system that carries out the initial step in the degradation of naphthalene. This enzyme has a broad substrate range and catalyzes several types of reactions including cis-hydroxylation, monooxygenation, and desaturation. In this study 1-phenylpyrazole and 1-phenylpyrrole were tested for biotransformation by NDO. HPLC analysis showed two metabolites from each substrate were produced by NDO. LC/MS analysis indicated the molecular weight of metabolites M1 and M2 of 1-phenylpyrazole were increased by 16 and 34 respectively which could be assumed as monooxygenation and dioxygenation reaction. On the other hand, HPLC and LC/MS analyses of metabolites M1 and M2 from 1-phenylpyrrole showed increased molecular weight of 16 and 32, as compared to the parent compounds, proposing addition of one and two atoms of oxygen to substrate, respectively. The structures of the metabolites were confirmed by 1HNMR and 13CNMR analysis. ····· 1036187037
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray One of the major environmental problems facing the world today is the contamination of soil, water and air by toxic chemicals. The past 200 years has seen a rapid increase in populations worldwide resulting in the need for greater fuel demand and development of industrial chemicals, fertilizers, pesticides and pharmaceuticals to sustain and improve quality of life. Although many of these chemicals are utilized or destroyed, high percentage is released into the air, water and soil, representing a potential environmental hazard. Environmental pollution has become unacceptable for modern living as public awareness of its effects on the environment has increased. Eight billion pounds of hazardous organopollutants are produced annually in the United States and very few percentages of these are disposed safely. Many of these are resistant to degradation. ····· 1036186911
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Since the early 1980s, methyl tert-butyl ether (MTBE) has been the most common octane booster and fuel oxygenate used in gasoline in the United States. The Clean Air Act of 1990 mandated the use of so-called reformulated gasoline by the late 1990s, widespread surface and groundwater MTBE contamination caused by gasoline spills and leakage became a crisis across the US. Two different microorganisms, Mycobacterium vaccae JOB5 and Graphium sp., were studied to evaluate their ability to aerobically cometabolize MTBE and its metabolites after growth on propane and iso-pentane. Both cultures were capable of cometabolizing MTBE and the metabolites, tert-butyl formate (TBF) and tert-butyl alcohol (TBA). MTBE, TBF, and TBA did not support growth of either microbe. Higher degradation rates were obtained in the bacterial system when the cultures were grown on iso-pentane. Nonlinear least squares regression and direct linear plot methods were used to estimate kinetic coefficients and provided comparable results. The enzymes involved in cometabolism of MTBE and its metabolites exhibited similar kinetics and substrate inhibition. Experimental data was modeled with Monod kinetics and STELLA®. ····· 1036186793
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray There are a large number of species of amoebae which parasite the human intestinal tract. Of these Entamoeba histolytica / dispar is the only species found to be associated with intestinal disease. Although many people harbour this organism world wide. Amoebiasis is an infection usually caused by the pathogenic Entamoeba histolytica / dispar, and is commonly an infection of the colon. It has a world wide distribution where environmental sanitation is poor. The parasite may behave as a commensal (causing no harm to the host) or it may act as a parasite (harming the host). It is a disease of human beings, although some monkeys can become infected and the infection is then transmissible to humans.. So we used the Lemon juice ( Citrus ) at different concentration against Entamoeba histolytica to treat the amoebiasis disease. Entamoeba histolytica shows the variety of growth due to the effect of Lemon juice ( Citrus ). Lemon juice is ingredient and it has antiamoebic properties against Entamoeba histolytica a causative agent of amoebiasis. ····· 1036186781
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Hepatitis B and C viruses (HBV & HCV) are hepatotropic viruses causing viral hepatitis, chronic liver disease and hepatocellular carcinoma. Hepatitis B and C virus infections are still major public health problems around the globe. Both of these viruses are transmitted mainly through the parenteral route and therefore a dual infection of these viruses can occur and even persists in the same patient. They are prevalent in different parts of the world including Ethiopia. In view of this, hospital based cross-sectional study was conducted in three public hospitals of Addis Ababa over a period of 7 months (Nov 2010- May 2011) on clinically diagnosed chronic liver disease patients. Serum samples from each volunteering patients was screened for the presence of HBsAg and anti-HCV Ab. ····· 1036186597
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Giardia lamblia and Cryptosporidium parvum are parasitic protozoa that infect humans as well as domestic and wild animals all over the world. These parasites are implicated in many water borne disease outbreaks in different parts of the world. The present study was conducted to assess the prevalence of these two parasites among children below 14 years old that drink water from different sources. Single stool specimens were collected from a total of 384 children from the three villages. For identification of Cryptosporidium parvum the modified Ziehl-Neelsen staining method was used. Giardia lamblia was detected using direct microscopy based on wet mount and formalin-ether concentration techniques. Out of the 384 children examined, 102 (26.6%) and 31 (8.1%) were found positive for Giardia lamblia and Cryptosporidium parvum infection, respectively. Overall co-infection with intestinal parasites was detected in 4.4% of the study participants, in which Giardia lamblia and Cryptosporidium parvum comprised the highest proportion. ····· 1036186574
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Peanuts are commonly infected with yellow molds or Aspergillus flavus during pre- and post-harvest stages, storage and transportation resulting in aflatoxin contamination. Consumption of aflatoxin contaminated peanuts causes health hazards like liver cancer, stunted growth and mental retardation, immune system suppression, allergies, and death in both humans and livestock. Recommended agronomic practices, good pre and post-harvest practices, chemical and biological control have been emphasized to overcome the above hazards. Adopting resistant varieties against Aspergillus flavus and aflatoxin contamination is considered as a cost effective strategy. Evaluation of different peanut varieties to A. flavus infection, determination of predominant Aspergillus species and levels of aflatoxin contamination in peanut varieties were the objectives of this study. Results showed that none of the varieties was immune to A. flavus infection. Differences were observed in the level of mycelial growth under different treatments. The Aspergillus species isolated from peanut kernels were A. niger, A. flavus, A. nidulans and A. fumigatus. The aflatoxin contamination levels ranged from 6 to 27 ppb. ····· 1036186558
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Polyhydroxyalkanoates (PHA) are the environment friendly polyesters which are also called as Bioplastics . PHAs are synthesized as intracellular reserve materials for carbon and energy source as a result of excess of carbon and depletion of nitrogen source. Growing concern about environmental pollution has renewed interest in the development of PHAs, which are totally biodegraded by microorganisms present in most environments. Because of their potential use as biodegradable thermoplastics polymers can be produced from different renewable carbon sources. Polyhydroxyalkanoates optimal production and extraction by different bacterial strains isolated from contaminated urban and hilly areas was conducted. Thirty bacterial strains were isolated, purified and were analyzed for Gram s reaction and biochemical analysis. All the isolated strains were Gram negative and belonged to Pseudomonas, Citrobacter, Klebsiella, Escherichia and Enterobacter genera. The isolated bacterial strains were analyzed for antibiotic (Penicillin) and heavy metal (Zinc, Cadmium, and Copper) resistance. All of the bacterial strains showed a wide range of resistance to antibiotics and heavy metals. ····· 1036186534
····· lezzter Preis 38.27€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This work describes the domestication of Pseudomonas species to produce various aromatic chemicals. The application of rational metabolic engineering strategies, including the deletion and alteration of chromosomal elements and the overexpression of heterologous genes, resulted in Pseudomonas taiwanensis strains that efficiently accumulate L-phenylalanine. Heterologous expression of a plant gene then allowed high-yield synthesis of the aromatic building block trans-cinnamate. The strains were further used as platform to produce several chemical compounds of industrial interest, including styrene, pinosylvin, benzoate, catechol and cis,cis-muconate. ····· 1036178954
····· lezzter Preis 38.27€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The environmental impact of plastic waste is regularly discussed. With bio-upcycling we can use plastic waste as a substrate for biotechnology. Polymers like PET and PU can be hydrolyzed to yield monomers like adipic acid, 1,4-butandiol and ethylene glycol. This work enabled Pseudomonas putida KT2440 to utilize these monomers, and gave insights into their metabolism and its regulation. Hereby, a biological basis to produce value added materials from plastic monomers was set. ····· 1036178950
····· lezzter Preis 38.27€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray To reduce the demand for fossil resources, biotechnological processes are increasingly applied. Hence, the used biological hosts have to be optimized in order to achieve the highest possible yield. Prior to this optimization, which is usually carried out by means of metabolic engineering strategies, the intracellular processes need to be investigated by methods such as 13C-MFA. The present thesis focussed on improving the labelling determination analysis for 13C-MFA based on GC-MS and GC-MS/MS. ····· 1036178763· 1 · ::::: · 12 ·· 13 ·· 14 ·· 15 ·· 16 ·· 17 ·· 18 · ::::: · 24 ·
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