Pure & Appl. Chern.‚ Vol. 64‚ No. 11‚ pp. 1731-1737‚1992‚ Printed in Great Britain. @ 1992 IUPAC Biosurfactants in industry N. KOSARIC Department of Chemical and Biochemical Engineering University of Western Ontario‚ London‚ Ontario‚ Canada‚ N6A 5B9 ABSTRACT Biosurfactants (Microbial Surface Active Agents) have become recently an important product of biotechnology for industrial and medical applications. Thereason for their popularity‚ as high value microbial products‚ is primarily in
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the unknown bacterium’s ability to ferment lactose was analyzed first. Positive lactose fermentation was indicated on both the MacConkey agar plate and SSA by the growth of bright pink colored colonies (Table 2; Kenyon College‚ 2011; Lancaster and Bennett‚ 2012). Identical results were also found in the inoculated lactose broth with the Durham tube and the TSI tests‚ which both indicated positive fermentation for lactose as well (Lancaster and Bennett‚ 2012; Watson‚ 2013;
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Education Oman Medical College Health Science Program By: Marwa Rashid Al-Flaiti Objectives: To fined the rate of fermentation of the apple and carrot juices‚ and compare their rates to each other. Introduction: Procedure: A 5.00 ml of apple juice was taken in a clean 150 ml conical flask and diluted with 50 ml of distal water. Then‚ 2.00 grams of Baker’s yeast and 5.00 ml of solution of Pasteur’s salts were added to the above conical flask. The content of flask was shacked well and
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the Carbohydrate fermentation broth test. The reason for doing this test was to identify the bacteria by determining what nutrients they can utilize and what end products will be produced in the process. “Sugars such as glucose will undergo "fermentation" when it acts as an electron donor‚ such as in glycolysis‚ and one of its metabolic products (such as pyruvate) acts as an electron acceptor in a fermentation reaction”. Most sugars other than glucose are said to undergo fermentation" when it is either
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Bacterial spp incapable of fermenting glucose cannot utilize lactose. 2 enzymes necessary for a bacterium to take up lactose: A. β-galactoside permease – facilitates the entry of lactose molecules to bac cell wall B. β-galactosidase – breaks down lactose into β-D glucose and β-D galacatose LF possess both enzymes NLF do not possess β-galactosidase LLF do not possess β-galactoside permease Glucose fermenters only (true enteric pathogen) Glucose and lactose fermenter (most opportunistic
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quality of wines. When ripe‚ the grapes are crushed and fermented in large vats to produce wine. Beer is also made by the process of fermentation. A liquid mix‚ called wort‚ is prepared by combining yeast and malted cereal‚ such as corn‚ rye‚ wheat or barely. Fermentation of this liquid mix produces alcohol and carbon dioxide. The process of fermentation is stopped before it is completed to limit the alcohol content. The alcohol so produced is called beer. It contains 4 to 8 percent of alcohol
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cream is coconut milk intended. The naming of nata de coco in Spanish because the Philippines had been a colony of Spain. Nata de coco is a dessert that looks like jelly‚ white to translucent and chewy texture. This food is produced from the fermentation of coconut water. Coconut water can be used as a medium for the production of nata de coco. Nata de coco is fermented coconut water with the help of microbe Acetobacter xylinum‚ a solid‚ white‚ transparent‚ sweet tasting chewy textured clan
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HYDROXYLATION OF PROGESTERONE BY Bacillus circulans Strain Tex 01-S3c ISOLATED FROM OIL CONTAMINATED SOIL IN OMERGA REGION‚ MAHARASHTRA‚ INDIA S. B. MALI & V.S. HAMDE Dept. of Microbiology‚ Adarsh College‚ Omerga Dist. Osmanabad‚ 413606 malisiromerga@yahoo.com and Dept. of microbiology‚ Yogeshwari College‚ ambajogai‚ Dist. Beed. Maharashtra‚ India Abstract Hydroxylations are possibly the most widespread type of steroid bioconversion. Hydroxylations can be used to buildintermediates
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non-spore forming; very motile .These organisms are chemoorganotrophs (an organism that obtains energy from the oxidation of reduced organic compounds). Salmonella enterica makes ATP by aerobic respiration if oxygen is present but also can switch to fermentation in the absence of oxygen (facultative anaerobes). Salmonella bacteria do not maintain the crystal violet dye used in the gram staining method because of their cell walls that are thin .most of the gram negative bacteria are usually harmful to the
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Respiration by Balloon Inflation Experiment Number 2 Abstract: Through a timed test it was discovered which substance A or substance B contained glucose and when combined with yeast results in respiration; it was found that substance A contained glucose and resulted in respiration when combined with yeast. At 0 minutes all four balloon’s circumference was 9 centimeters; substance B and salt remained the same circumference‚ 9 centimeters‚ for all 18 minutes. At 3 minutes substance
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