different elements that makes it of more beneficial. One of the components includes escharase which is a non-proteolytic substance in bromelain that is essential in the action of topical bromelain. Other components of bromelain are peroxidase‚ acid phosphatase‚ several protease inhibitor and organically-bound calcium. With the action of bromelain in the body‚ it is mainly absorbed through the gastrointestinal tract as supported by a rat study conducted that with up to 40 percent of the high molecular
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determine metals in complexometric (a volumetric analysis where the formation of a coloured complex is used to indicate the end point of a titration) titrations as it forms stable complexes with most metal ions. EDTA is a tetracorboxylic acid and in alkaline conditions‚ it exists as Y⁴⁻ ions‚ which form 1:1 complexes with metal ions like nickel(II) ions: Y⁴⁻ + Ni²⁺ NiY²⁻ A metal ion indicator (an organic dye which changes colour when it binds with metal ions) shows the end of an EDTA complexometric
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of thymine in DNA)‚ Cytosine (C) and Guanine (G). Deoxyribose sugar in DNA is less reactive because of C-H bonds. DNA is stable in alkaline conditions. DNA has smaller grooves where the damaging enzyme can attach which makes it harder for the enzyme to attack DNA. Ribose sugar however is more reactive because of C-OH (hydroxyl) bonds. RNA is not stable in alkaline conditions. RNA has larger grooves‚
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major lixiviants used in the dissolution of silver halides present in photographic and medical X-ray films. The resultant solutions contain substantial amounts of recoverable silver complexes in the form of thiosulfates. The as received carbons were alkaline in nature when contacted with deionised water. These carbons showed very low silver recoveries. However‚ when these carbons were pre-treated with 0.5 mol/dm3 sulphuric and nitric acids at 25 °C‚ it had resulted in significant silver recoveries of
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acid at 55 °C: Yellow oil with bitter almond smell produced benzene NO2 + HNO3 (HONO2) Alkylbenzenes – CH3 CH3 + H2O Add alkaline KMnO4 and boil: Decolourisation of KMnO4; brown precipitate of MnO2 formed ⎯ CH3 + 3[O] methylbenzene H2SO4 ⎯ COOH + H2O Comment Oxidation of the side chain is more effective in alkaline than acidic conditions. Haloalkanes R–X where R is an alkyl group; X is Cl‚ Br or I C–X Add silver nitrate in alcohol and warm: White
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Unknown Report Emily Juhl Section – 3 April 15‚ 2013 Unknown #8 Family: Enterobacteriaceae Genus: Serratia Species: Marcescens Abstract Microorganisms are constantly finding ways to resists to antibiotics. For this reason‚ it is important to test and observe unknown organisms in the lab to continually improve the health and well being of society. The objective of this report was to first isolate a single colony of an unknown culture on a LB agar plate. From
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Anatomy of the Male Reproductive System Scrotum The scrotum is a sac-like organ made of skin and muscles that houses the testes. It is located inferior to the penis in the pubic region. The scrotum is made up of 2 side-by-side pouches with a testis located in each pouch. The smooth muscles that make up the scrotum allow it to regulate the distance between the testes and the rest of the body. When the testes become too warm to support spermatogenesis‚ the scrotum relaxes to move the testes away
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the colour from pink to either white (if bile is not contained) or brown (if bile is contained)‚ this will indicate that the solution is changing from alkaline to acidic. So if I want to use phenolphthalein‚ I will have to firstly make the mixtures alkaline. This will be achieved by adding sodium carbonate to the milk until it is a strong alkaline which is just above pH 10. I used a universal indicator paper to find out if the pH is 10. Lipids Fatty Acids + Glycerol My null hypothesis is that
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Food Analysis * Concerned with development of criteria of quality and identity… * Process in w/c sample is treated in a series of steps Importance: 1. It’s necessary in the dev’t and enforcement in standard of identity‚ purity and feel of processed food products. 2. It can provide studies design to improve and control the quality of natural processed food. 3. Can help in the determination of the composition of products in their normal and abnormal storage conditions. Methods
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We tested the weights of the potato membranes every 5 minutes in the different solutions of pH. PH is defined as “a measure of hydrogen ion concentration equal to –log[H+]” (Reese et al.‚ 2014). It measures how acidic or alkaline (basic) something is. It ranges from 0 to 14‚ with 7 being neutral. Acids are solutions that have a higher concentration of hydrogen ions and less hydroxide ions. Bases are solutions that have a higher concentration of hydroxide ions and a less concentration
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