2. Objectives The objectives of this experiment are to observe the keeping quality of some food products‚ study the various simple methods of moisture determinations using different drying method. And determine the water activity in some food samples such as biscuits‚ bread‚ flour and instant noodles by using water activity measurement machine. 3. Theory To determine the moisture content in the food‚ methods such as open dish method and infrared balance method are used. 3.1 Hypothesis
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harmful microbes. Fungal infections can be particularly dangerous‚ but we have developed many different antifungal medications that can usually deal with these infections. But how do antifungal medications work‚ and how effective are they? In this science project‚ we will test how well different common antifungal medications can stop the growth of baker’s yeast‚ a harmless variety of fungus often used in baking. Problem/ Objective : Determine how different antifungal medications slow or stop the
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are various electronic commerce activities and mechanisms. E-Commerce Activities and Mechanisms include the following but not limited to: E-Market Place: It is an online market usually B2B where buyers and sellers exchange goods or services. EC transactions take place in the electronic equivalent of a mall called the electronic marketplace (e-marketplace). Electronic marketplaces utilize different tools (electronic shopping cart‚ e-catalog‚ fulfillment technologies‚ and checkout and payment
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and measure the enzyme activity of β-galactosidase in the different concentrations of o-Nitrophenylgalactoside (ONPG) using a spectrophotometer. The spectrophotometer was also set at 420nm‚ a wavelength which is best for recording the absorbance values for the experiment. From the results‚ 0.9mM ONPG solution has the highest absorbance and 0.1mM ONPG solution has the least. Also‚ 0.5mM ONPG solution has the highest rate of enzyme activity and it is the most efficient as the enzyme activity of the
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Omar Shbeeb Toothpick Enzyme Lab 9/25/13 Introduction Enzymes are used in all metabolic reactions to control the rate of reactions and decrease the amount of energy necessary for the reaction to take place. They are responsible for the thousands of chemical interconversions that sustain life. Enzymes are referred to highly selective catalysts‚ meaning they speed up the rate of metabolic reactions. To react‚ they need to find a perfect match with a substrate. They converge at a place called an
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A HISTORY OF SCIENCE AND TECHNOLOGY IN THE PHILIPPINES* by Olivia C. Caoili** Introduction The need to develop a country’s science and technology has generally been recognized as one of the imperatives of socioeconomic progress in the contemporary world. This has become a widespread concern of governments especially since the post world war II years.(1) Among Third World countries‚ an important dimension of this concern is the problem of dependence in
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LAB 9: DATE: 25TH January‚ 2011. FORM CLASS: L6 3 SUBJECT: Biology TITLE: Enzymes AIM: To investigate the effect of temperature on the enzyme lipase INTRODUCTION: The phenomenon of catalysis makes possible biochemical reactions necessary for all life processes. Catalysis is defined as the acceleration of a chemical reaction by some substance which itself undergoes no permanent chemical change. The catalysts of biochemical reactions are enzymes and are responsible for bringing about almost
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Abstract: This experimentation was to evaluate absorbance and the reaction rate of an enzyme‚ ’-amylase in starch-iodine solution. We will be testing the relationship between enzymatic reaction affected by temperature and pH. Through the testing the enzyme at different temperatures‚ and different pH levels; it would determine at which temperature and pH level the enzyme worked the most efficiently. Analyzing absorbance of the solutions with spectrophotometery will determine the reaction rate. To
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E-Contracts and E-Signatures I. Forming Contracts Online Disputes arising from contracts entered into online concern the terms and assent to those terms. A. Online Offers Terms should be conspicuous and clearly spelled out. On a Web site‚ this can be done with a link to a separate page that contains the details. The text lists subjects that might be covered‚ including remedies‚ dispute settlement‚ payment‚ taxes‚ refund and return policies‚ disclaimers‚ and privacy
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necessary for everyone to learn science? What is science? “Science is the intellectual and practical activity encompassing the systematic study of the structure and behavior of the physical and natural world through observation and experiment.” Science can be known as a subject‚ explanation and possibly our underlying belief. Among the humanity‚ there are diverse of religions; some believe in Buddhism‚ some believe in Christian‚ some believe in Science‚ because science is proved with mathematical methods
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