they tested this by seeing how H2O2 and the catalysts from the banana and liver react to make H2O+O2. Depending on different conditions; like decomposition of H2O2 (surface area)‚ temperature on function‚ reusing the catalase‚ reaction rate of iced liver returned to room temperature‚ and effects of pH on enzyme activity‚ to see how much O2 was released by each reaction. For experiment two they tested effect of temperature on liver‚ iced had a slow increase of O2 loss‚ after a minute 18.8 ml of O2 escaped
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0.5-1.5 micrometer (µm). * L. lactis does not produce spores (nonsporulating). * No capsule formation. * L. lactis grow in microaerophilic conditions * L. lactis are non motile. * L. lactis are Gram (+ive). * L. lactis are catalase (-ive). * L. lactis have low-GC content. * L. lactis are acid-tolerant * Optimum growth temperature is 30oC at pH 6.8. * L. lactis are not produce CO2 in MRS Broth. Colony Morphology: * No pigment/Color. * Texture is smooth
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Treatment of hydrogen peroxide on the cells showed a dramatic repression on superoxide dismutase (SOD) and cytosolic NADPH + - dependent isocitrate dehydrogenase (IDPc) activities with the remaining activities of 56.1 and 37.5%‚ respectively. The three In Vitro Antifungal 3 extracts significantly regenerated SOD activity with the range of 103 to 178% when compared to the control‚ and IDPc activity with the range of 34.4 to 42.2%. The three extracts also regenerated catalase and glucose-6-phosphate
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Aging‚ “The accumulation of diverse deleterious changes occurring in cells and tissues with advancing age that are responsible for the increased risk of disease and death.” (Tosato‚ 401). This major aspect of our life is still a mystery to scientists‚ however there are many theories behind the process‚ and reason humans and all living organisms age. Many studies have been performed to understand more about this phenomenon‚ yet no definitive theory has been stated. Free radical theory has been a popular
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superoxide (O2•−)‚ H2O2‚ hydroxyl radical (HO.)‚ peroxyl (ROO.) and alkoxyl (RO.) radicals‚ which may be implicated in the initiation and propagation of free radical chain reactions and are potentially highly deleterious to cells (Riley‚ 1994). Hydrogen peroxide and O2•−‚ as well as HNE and related 4-hydroxy-2‚3-alkenals (HAKs)‚ the main aldehydic end products of lipid peroxidation‚ can act as potential mediators capable of affecting signal pathways as those mediated by NF-κB (Evans et al.‚ 2002)‚ and
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Chapter One INTRODUCTION Herbal medicines tend to look primitive and unscientific when compared to synthetic (conventional) drugs‚ which are thought to be more reliable than those made from plants. Herbal medicine is still the mainstay of about 75-80% of the world population‚ mainly in the developing countries for primary health care (Kamboj‚ 2000). This is primarily because of the general belief that herbal drugs are without any side effects‚ besides being cheap and locally available. The
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Catalysis Lab: Laboratory Write Up Problem/Question: What happens to the amounts of gas produced in a catalyzed reaction of Hydrogen Peroxide when the catalyst is mixed with an acid? Theory/Hypothesis: In this experiment the researcher and their team will be performing tests on a catalyst (proteins found in potato) to see what will happen when the catalyst in a Hydrogen Peroxide reaction is treated with an acid before the reaction occurs. The researcher hypothesizes that the after treating the catalyst
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A Team Project Entitled: Feasibility of Mustard (Brassica Integrifolia) Root Extract for Water Phenol Decontamination ANNA KRIZA D. LACHICA MA. ANGELICA V. RAMOS RESEARCHERS MS. CRISTINE SEALZA SAÑADA RESEARCH TEACHER February 7‚ 2011 Table of Contents Acknowledgement.....................................................................................................3 Abstract ...............................................................................................
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2. Material and methods 2.1 Sample collection The following 14 samples of Staphylococcus aureus were used in this study. All samples were obtained from food contact surfaces at three food premises in University of Putra Malaysia (UPM). Samples were collected from the surface of each material according to standard swabbing techniques. The collection was carried out during weekdays (15:00-17:00) after finished the preparation of foods. Sterile swabs were removed from the coded test tubes that contain
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Lab12-Medical Microbiology- Part1– Differential Media/Biochemical Tests‚ Sp2012 (Set all of your margins to ½”) Purpose: The purpose of this lab is to help you become a little familiar with some of the tests that can be typically performed in a clinical or research lab facility. These tests may help in determining a particular pathogen’s growth needs. There are several sections to this lab. Find each section and complete the “Preparing for Class” sections. Preparing for class - Day 1 Read
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