für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Cotton (Gossypium hirsutum L.) is one of the main cash crops of Pakistan. It has played a significant role in industrial development and employment generation. It is known as backbone of Pakistan s economy. Its impact on the economic development of the country is well established and it is rightly known as silver fiber of Pakistan. It occupies the 2nd position with respect to cultivated area in the country. During 2007-08 the cotton production was 12 million bales from an area of 3.05 million ha (Anonymous, 2008). Chemical fertilizers which have nutrients available, can provide sufficient nutrients to the crops, but their cost and constrains frequently deter farmers from using them in recommended quantities and balanced proportions. Moreover, limited availability of chemical fertilizers and their high cost are making their use difficult for the farmers. No doubt, use of chemical fertilizer provides essential nutrients for crop improvement to obtain higher yields however, data of recent years reflect that the crop yields in Pakistan are almost stagnant. This situation warrants the use of organic sources of nutrients. ····· 10361240
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This book includes taxonomical, physiological, biochemical and molecular studies of amylolytic thermophilic actinomycetes. A total of 36 actinomycetes were isolated from soil, mushroom compost and other compost samples. Four of the isolated thermophilic actinomycetes that exhibited the highest amylolytic activities were characterized and identified as: Thermoactinomyces sp, T. vulgaris and T. intermedius (two isolates). T. vulgaris, the best producer of -amylase, was selected for further investigation. The optimum conditions for the production are: 24 hours incubation, 55ºC, pH 7.0, starch and tryptone as carbon and nitrogen sources, respectively. At different conditions of production, -amylase electrophoresis profile had the same pattern of two isozyme with molecular weight between 135 and 145 kDa. Purification of this -amylase was carried out by ammonium sulfate precipitation, dialysis, gel filtration and anion exchange chromatography. Physiochemical and molecular studies of the crude and purified enzyme revealed a novel thermostable, high molecular weight, calcium independent with wide pH range alpha-amylase. This enzyme could be of importance for industrial applications. ····· 10361134
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Industrial wastewater pollution is one of the most controversial problems especially in countries like Pakistan. Human activities and the release of industrial wastes have resulted in the accumulation of metals in the environment. Noxious chemicals like heavy metals include cadmium, lead, chromium, copper, nickel, etc., pollute the soils, ground water, sediments and surface waters are present in soluble form. Bioremediation technology uses microorganisms to reduce, eliminate, and transform contaminants present in soils, sediments, water, and air. One of the processes of bioremediation is biosorption , by which metal ions are adsorbed from polluted site by microorganisms.Analysis is done by the technique of atomic absorption spectrophotometery. ····· 10361121
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Water availability for sustainable agriculture is becoming extremely critical factor with passage of time. There is dire need to enhance water use efficiency in crops so that higher crop yields could be obtained from limited sources of water. A series of experiments conducted during last several years under field conditions to assess the effectiveness of novel bacteria having ACC-deaminase enzyme for improving growth and yield of cereals. After intensive screening of bacteria, we have successfully isolated a few bacterial strains containing ACC-deaminase enzyme which showed tremendous potential to promote growth and yield of cereals under water deficit stress conditions. ····· 10361114
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This book describes basics of synthetic peptide technology and its usage in epitope mapping for disease causing viruses of human, animals and birds.It is handy for newcomers on how to analyse the genomic data of viruses and predict antigenic determinants also called as epitopes in structural proteins of viruses and how to fish out promising epitopes.The methods for using computer alogorithms like DNASTAR software and synthesizing peptides by simple methods were described lucidly.Preparation of multiple antigenic peptides,screening of peptides representing epitopes were stated very elaborately.Most importantly,the methods for producing antipeptide antibody in rabbits without using any carrier proteins which in turn will produce high titred sera was written in this book in simple language.Purification of sera by sepharose methods was also included in this book.This book is a compendium of all methods for Molecular Biology and Molecular Virology students,researchers and scientists.It is expected to fill the gap in synthetic peptide technology and its application for disease diagnosis and developing novel,safe,non-infectious immunogens as vaccines for controlling animal viral diseases. ····· 1036163
für 44.91€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Chitosan is prepared from prawn shell using the bio-conversion methods as compared with the chemical treatment method. The physicochemical properties, molecular weight, degree of deacetylation, ash content as well as yield of prepared chitosan indicate that bioconversion is a good and sustainable method for the isolation of chitosan. Chitin deacetylase, the enzyme that catalyzes the hydrolysis of acetamido groups of N-acetyl glucosamine in chitin, has been purified to homogeneity from the bacteria Bacillus altitudinus and further characterized. Chitin deacetylase is active on several chitinous substrates and chitin derivatives. The enzyme is inhibited by 1mM Hg2,Fe2+, but addition of Mn2+ slightly increases chitinase activity. When colloidal chitin (a chitin derivative) was used as substrate, the optimum temperature and pH for enzyme activity was determined. The surface morphology of treated chitosan and the enzyme s apparent molecular mass was determined by Scanning Electron Microscope (SEM) and Sodium Dodecyl Sulfate Poly Acrylamide Gel Electrophoresis (SDSPAGE) respectively. ····· 1036123· 1 · ::::: · 17 ·· 18 ·· 19 ·· 20 ·· 21 ·· 22 ·· 23 · ::::: · 24 ·
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