FOOD & NUTRITION SCHEME OF WORK 2004 TERM 1 *D/N CHAPTERS CONTENTS ACTIVITIES 1 INTRODUCTION to food science Laboratory equipment & safety Sensory evaluation - Understand the importance of safety when conducting experiments - Plan & carry out experimental work to test food preparation and processes - Conduct a simple food sensory test - Introduction to Design Folio and grading scheme Assignment to be given to students A simple sensory test on fruit juices 2 SCIENCE of
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Preparation and purification of acetylsalicylic acid Results and Data treatment (A) Preparation of aspirin i) Details about the reactants Reaction of the acetylation of salicylic acid is following From the balanced reaction above‚ it can be seen that the stoichiometry between salicylic acid and acetic anhydride is 1: 1. In this experiment‚ 21.7mmol of salicylic acid was used to react 6.0mL of acetic anhydride and salicylic acid was limiting reagent. The expected amount of salicylic
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NANOTECHNOLOGY IN WATER PURIFICATION Introduction Nanotechnology is the manipulation of matter on a near-atomic scale to produce new structures‚ materials‚ and devices. This technology has the ability to transform many industries and to be applied in many ways to areas ranging from medicine to manufacturing. Research in nanoscale technologies is growing rapidly worldwide In the case of nanoscale materials‚ the uncertainties are great because the characteristics of nanoscle materials may be different
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Deloris Buliner RESL201 Christopher Myers October 20‚ 2014 Purification of Judaism and Hinduism Judaism and Hinduism have different cultures and originate from different ends of the spectrum of religious development. The origin of Judaism is characterized by a dramatic break with the near Eastern religious tradition comprising of the unity of God‚ man‚ and the cosmos while Hinduism on the other hand‚ characterized by “pantheism” as the main motif in its religious outlook (Ridgeon‚ Lloyd). While
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The term Ponzi scheme was named after Charles Ponzi‚ a con man from the 1920s. Ponzi began his “business” by buying and selling international reply coupons. He was able to persuade some friends to invest in this endeavor‚ by telling them that he could double their investments. Essentially‚ Ponzi made no profit off of this scheme because the circulation of money from new investors is what sustained his “business”. Unfortunately for Ponzi‚ many investors and the media began to question the legitimacy
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Experiment 2: IDENTIFICATION OF UNKNOWNS BY TLC AND MP IN COMBINATION Introduction: Thin layer chromatography (TLC) is one of the most valuable techniques in organic chemistry. This is a best method of separating and identifying mixtures of two or more compounds. The separation is accomplished by the distribution of the mixture between two phases: one that is stationary and one that is moving or mobile. Chromatography works on the principle that different compounds will have different
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protein in the cell lysate from lab 1 through nickel affinity chromatography. Protein purification should result in only one type of protein ideally‚ which is the protein of interest‚ wt-DHFR and mut-DHFR in this case. A pure protein allows for further analysis on the protein to be conducted‚ such as its concentration (Bradford assay)‚ its molecular weight‚ and its biological activity. 2. Overview of experiments Buffer Preparation Add the liquid sodium phosphate‚ solid sodium chloride and liquid
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TOPIC: Role of students in the purification of the society. TABLE OF CONTENTS TOPIC: Role of students in the purification of the society * Purpose of education. * Students and their role in the society. * Current situation of the society. * Students’ reformers in the past. * Students’ role in the purification of the society. * Conclusion
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Separation of the Components of a Mixture Purpose: To become familiar with the methods of separating substances from one another using decantation‚ extraction‚ and sublimation techniques. Apparatis and Chemicals: balance‚ Bunsen burner‚ rubber hose‚ tongs‚ 2 evaporating dishes‚ 2 watch glasses‚ 100-mL graduated cylinder‚ clay triangles‚ 2 ring stands‚ 2 iron rings‚ 2 glass stirring rods‚ unknown mixture of NaCl‚ NH4Cl‚ SiO2. Discussion: Mixtures are composed of two or more substances
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Samantha Smith Organic Chem 255 Lab M/W 12:30-4:30 Hyejin Cho 12 June 2013 Separation of a Mixture Abstract: In this experiment‚ the three processes of extraction‚ sublimation and recrystallization will be used to separate a mixture of salicylic acid and naphthalene. The first part of extraction will be to separate the salicylic acid from the naphthalene using diethyl ether and aqueous sodium bicarbonate. The naphthalene will reside in the ether and be the top layer‚ while the
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