are three carbohydrates that are similar‚ but structurally different. Carbohydrates have the general molecular formula CH2O. Starch and cellulose are the two most common carbohydrates. Both are polymers (hence "polysaccharides"); that is‚ each is built from repeating units‚ monomers‚ much as a chain is built from its links. The monomers of both starch and cellulose are the same: units of the sugar glucose. Carbohydrates are one of the four major classes of organic compounds in living cells. They are
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Chapter 1Mahogany Seed as a Termiticide to Kill Termites INTRODUCTION Mahogany used in multistory systems in the Philippines‚ boat and ship building and patternmaking. Logs are used for the manufacture of veneers and for paneling. It is also used as shade for coffee and cacao. Mahogany is regarded as the worlds finest timber for high-class furniture and cabinetwork. Its popularity is especially due to its attractive appearance in combination with ease of working‚excellent finishing qualities and
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In this way‚ the purpose of the pre - treatment is the departure of lignin and hemicellulose‚ the diminishment of crystalline cellulose and the development in the porosity of the materials. In addition‚ the pre - treatment should upgrade the improvement of sugars or the ability to shape them in the midst of the succeeding enzymatic hydrolysis and avoid the game plan of inhibitors
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mammals with a paunch with micro-organisms that digest cellulose and other polysaccharides from plant sources. Most animals lack the enzyme‚ that is necessary to digest cellulose from plants and therefore dependent on microorganisms. The temperature of the rumen is approx. 39 degrees‚ the pH is approx. 6.5 and is anaerobic conditions. The food is present in the rumen for 9 to 12 hours and during this period bacteria and protozoa hydrolyze cellulose to the disaccharide cellobiose and free glucose molecules
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PRETREATMENT OPERATIONS Classification: * Mechanical pre-treatment * Chemical pre-treatment Chemical Pretreatment: Operations To Remove Impurities: * Cleaning Operations: 1. Desizing: * To remove applied impurity i.e.; sizing material. * Hydrolysis of sizing material (starch) using enzymes. * Starch (hydrophobic) is converted into glucose and fructose (hydrophilic). * Assessment by Tegewa or violet scale. 2. Scouring:
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1 INTRODUCTION In recent years‚ there has been rapid growth in the number of Fast Dissolving / Disintegrating Tablet (FDT) product on the market. Fast Dissolving Tablets are solid tablets and designed to dissolve/disintegrate in the patient’s mouth within a few second or minutes‚ without the need to drink or chew. However‚ the fear of taking solid tablets and the risk of choking for certain patient populations still exist despite their short disintegration/dissolution times. However‚ some
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if planted on open areas‚ one must use windbreakers for the banana plant not to be harmed‚ the plant can be also planted on dry lands provided that there is a stable irrigation (Department of Agri-culture‚ 2010). Paper is a material made of cellulose pulp‚ derived mainly from wood‚ rags and certain grasses‚ processed into flexible sheets or rolls by deposit from an aqueous suspension (Encyclopedia Britannica‚ 2008).It is the most widely used material by mankind since its discovery in China. The
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of the recent research on the fundamental and applied properties of nanoparticles extracted from cellulose‚ the most abundant polymer on the planet and an essential renewable resource. Given the rapid advancements in the field and the high level of interest within the scientific and industrial communities‚ pioneered the use of cellulose nanoparticles (cellulose nanocrystals or whiskers and cellulose microfibrils) in nanocomposite applications. in the life sciences and bio-based applications‚ biological
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the market – only two major players 2.Unutilized capacity of 1200 tonnes - can be used in case of unexpectedly high demand 3. Capacity increase sanctioned by the government – can be used to service newer markets 4. Rising number of users for Cellulose film Weaknesses of Nirmal Rayons 1. Increased supply – 2 existing firms and 3 new ones have been given letters of intent for increasing capacity 2. Substitutes – Cheaper alternatives like Cellophane like PVC have emerged in the market. Problem
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entirely different and new product. Celluloid quickly moved into many markets‚ including the first photographic film used by George Eastman to produce the first motion picture film in 1882. The material is still in use today under its chemical name‚ cellulose nitrate. In 1909‚ Dr. Lee Hendrik Baekeland introduced phenoformaldehyde plastics (or "phenolics"‚ as they are more popularly known)‚ the first plastic to achieve worldwide acceptance. More importantly‚ Baekeland also evolved techniques for controlling
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