known as "red seaweed." The specific chemical that we are interested in is agar‚ which appears in red seaweed in abundance. When you hear Cereplast and other companies talk about developing bioplastic made from seaweed‚ they really mean that they will be using the chemical agar‚ which is extracted from the seaweed. Fortunately (or unfortunately?) this project won’t have you traipsing out to the ocean to collect seaweed. Agar is used as a food additive in confectionaries‚ desserts‚ beverages‚ icecream
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facilitates the handling of large numbers of bacterial clones for classification on a variety of media. METHODS Replica plating. A frequent chore in bacteriological work is the transfer of isolates from one substrate to other selective or indicator agar media. In place of an inoculating needle‚ one might imagine a device consisting of many needle tips in fixed array‚ so that one operation would substitute for repeated transfers with a single needle. The requirements of this design are met by pile
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stain. * Observe the slides under microscope and record results. BIOCHEMICAL TESTS SUSCEPTIVITY TESTING Materials * MHA agar * Organism grown in Broth * Swabbing stick * Principle Procedure TSI (TRIPLE SUGAR IRON TEST) Materials * TSI agar * Straight wire loop * Cultured colony of organism * Purity plate Principle TSI agar detects fermentation of glucose 0.1%‚ lactose 1% and sucrose 1%‚ production of H2S‚ and gas formation. The medium contains ferric
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he receives a gift from an unknown man. Max is delivered some food‚ a key‚ a map‚ and most importantly‚ a book. The book is Mein Kampf‚ the Fuhrer’s novel that guides the beliefs of all Nazis. Max uses this book to convince the world that he isn’t Jewish‚ and this allows him to survive the train ride to Hans Hubermann’s house on Himmel Street. On the train‚ Max “read from the copy of Mein Kampf. His savior” (Zusak 157). Max just escaped an almost inevitable death as a starving jew by using the same piece of literature that sculpted
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Yellow | ColourlessMedia: Pink | ColourlessMedia: Yellow | Pink-RedMedia: Pink | ColourlessMedia: Pink | E. coli grown in EMB agar: As we can see from the table above‚ the streak of E. coli on a plate with EMB agar showed a metallic green sheen where E. coli was present. EMB stain is selective for gram-negative bacteria. It is made using 6:1 Eosin and Methylene Blue. EMB agar is a differential media and inhibits the growth of gram-positive bacteria while also using a colour indicator to tell the difference
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bacteria Bacillus subtilis did not grow well to see if there was a clearing. After doing some research‚ it was shown that B. subtilis is lipase positive so there should have also been some clear sones like the Staphylococcus aureus (Watson). The DNAse agar could not have been analyzed because HCl was not available to precipitate the DNA to see if the bacterium had the enzyme DNase. If the test could have been analyzed‚ Staphylococcus aureus would be positive for DNase and E. coli would have been negative
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in partial fulfilment of requirements in Biology 101.1 under Prof. Kimverly Hazel Coronel‚ 1st sem‚ 2013-2014 ABSTRACT The effect of molecular weight on the rate of diffusion was assessed using the agar-water gel test. The agar-water gel set up was composed of a six petri dish of agar-water gel containing two wells. Pinch of potassium permanganate (KMnO4) and methylene blue (C16H18N3SCl) were simultaneously introduced to each dish and measured the distance and its rate. Methylene blue‚ having
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and starch agar. OBJECTIVES: distinguish between different bacterial species based on colony morphology on agar plates To distinguish the growth characteristics of microorganisms in various differential‚ and selective media. Differentiate bacteria based on their ability to hydrolyze starch. Materials: Plates of EMB‚ Starch and blood agar. Stool sample. Inoculating loop. Bunsen burner. Soil sample. Cotton soap. Skin sample. Gram iodine. Results: Starch agar: Special
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Bacteria will be grown in an agar broth containing .01%‚ .1%‚ .5% and 10% antibacterial soap. To fully understand the subject‚ information on everything necessary to conduct this experiment and comprehend the results was researched. Once the experiment is completed a conclusion will be able to be made as to whether or not bacteria can become resistant to antibacterial soaps The procedure for the experiment is as follows. Ecoli bacteria will be grown in agar broth with .01%‚ .1%‚ .5% and 10%
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TCBS agar is a selective as well as differential culture medium used for isolation of Vibrio spp. The growth of intestinal flora other than Vibrio spp. is prevented by the high pH (8.5-9.5) of TCBS. TCBS agar consist off yeast extract‚ bacteriological peptone‚ sodium thiosulphate‚ sodium citrate‚ ox bile‚ sucrose‚ sodium chloride‚ ferric citrate‚ Bromothymol blue/ thymol blue and agar. Sodium thiosulphate‚ sodium citrate and ox bile are the components
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