The result of the total plate count of Adlay vinegar fortified with iron in different concentrations was shown in Table 13. The analysis was performed using 1:100 dilution in triplicates and the data gathered substantially varies. The differences could be explained by the fermentation temperature‚ and other environmental conditions of the samples. Since the fermentation of the samples were done in uncontrolled environmental conditions. According to the study of Millet and Lonvaud-Funel (2000)‚ the
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Experiment 2: Food Tests Objective * To study the presence of reducing sugars. * To study the presence of protein. Introduction In this experiment‚ glucose‚ maltose‚ lactose and sucrose are used for testing reducing and non-reducing sugars. Glucose is monosaccharide while maltose‚ lactose and sucrose are disaccharides of carbohydrates. Monosaccharaides are the monomers which make up all other carbohydrates and cannot be broken into smaller molecules by hydrolysis. Disaccharides are
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HKDSE CHEMISTRY – A Modern View (Chemistry) Coursebook 3 Suggested answers Chapter 25 Simple molecular substances with non-octet structures and shapes of simple molecules Page Number Class Practice 1 Chapter Exercise 2 Chapter 26 Bond polarity Class Practice 4 Chapter Exercise 5 Chapter 27 Intermolecular forces Class Practice 7 Chapter Exercise 9 Chapter 28 Structures and properties of molecular crystals Class Practice 11 Chapter Exercise 12 Part Exercise 14 Chapter 29 Chemical cells in daily life
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HKDSE CHEMISTRY – A Modern View (Chemistry) Coursebook 3 Suggested answers |Chapter 25 Simple molecular substances with non-octet |Page Number | |structures and shapes of simple molecules | | |Class Practice |1 | |Chapter Exercise
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CHEMISTRY – SECTION D Vocabulary Pollutants An undesirable contaminant that adversely affects the chemical‚ physical‚ or biological characteristic of the environment Primary air pollutants A contaminant that directly enters the atmosphere; it is not initially formed by reactions of airborne substances Secondary air pollutants A contaminant generated in the atmosphere by chemical reactions between primary air pollutant and natural components of air Particulate pollutants Microscopic
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A Report on “A case study on Bi-Mechanism Bridge at Madhapar” A PROJECT REPORT On Project I Submitted by 1. Rushikesh J Dabasia (140850106011) 2. Ruchit M Dabasiya (140850106012) 3. Kiran K Hirani (140850106032) 4. Prakash V Hirani (140850106047) 5. Vikrant D Patel (140850106064) Team ID.:- 2827 In fulfilment for the award of the degree Of BACHELOR OF ENGINEERING HJD INSTITUTE OF TECHANICAL EDUCATION AND RESEARCH‚ KERA-KUTCH Gujarat
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Assignment 20 A 1- Which of the following oxidation numbers in the species given is incorrect? a) SO32−; S +4‚ O −2 b) ClO3−; Cl +5‚ O −2 c) H2C2O4; H 1+‚ C 3+‚ O 2− d) H2O2; H +1‚ O −1 e) Ca(ClO)2; Ca +2‚ Cl +2‚ O −2 f) Zn(NH3)6Cl2; Zn 2+‚ N 3−‚ H 1+‚ Cl 1− (Cl is +1 in this compound. Ca: 1 × (+2) = +2. O: 2 × (−2) = −4. Charge on the compound = 0; therefore‚ (+2) + (−4) + 2 × Cl = 0. The charge on Cl is 1+.) 2- A voltaic cell is constructed. One electrode compartment consists of a zinc strip placed
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(F’lac+strr). MAC plates and streptomycin were utilized to determine if conjugation had occurred. When plated‚ the donor colonies appeared red and the recipient colonies appeared white. The transconjugant plates showed red and white colonies. Using alkaline lysis miniprep‚ a DNA plasmid was isolated from the donor and transconjugant strains and FIGE electrophoresis was used to determine the size of the plasmid. The conjugation efficiency was found to be 16.25% and the plasmid DNA was approximately 97
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reduces friction making swallowing easier. The continuous flow of saliva also flushes and cleans the oral surfaces while controlling oral bacteria through salivary antibodies. The pH of saliva during meal time rises from slightly acidic pH 6.7 to more alkaline pH 7.5. Radiation and emotional distress can cause a reduction of salivary secretions. This then can create an unhealthy oral cavity environment due to increased bacteria population. Over time‚ the complications caused by the decreased salivary secretions
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Temperature class: mesophile – they can grow in the range of 10 °C - 45 °C pH class: can grow at a pH range of (4.6 – 9.9) with the optimum at 7.5 Enterococci can survive very harsh environments including extreme alkaline pH 9.6 and salt concentrations (basic). Environment: They can found in the intestines of humans‚ particularly within the large bowel. They also are a natural part of the intestinal flora in most other mammals and birds. E. faecalis has also
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