Sucralose Essay Example for Free

Sucralose Essay Sucralose (1,6-dichloro-1,6-dideoxy-b-D-fructo-furanosyl 4-chloro-4-deoxy-a-D-galactopyranoside), sold under the trade name Splenda (R), is usually categorized as non-nutritive sweetener or flavor enhancer. The molecular formula is C12H19Cl3O8 (1). It exists at room temperature as a white to off-white, crystalline powder, which is freely soluble in water, in methanol, and in alcohol, and slightly soluble in ethyl acetate (1). Sucralose has molecular weight of 397. 64 (2). As a sweetener, it has 400 to 800 times that of sucrose (2). Its melting point has been recorded as 130 degrees Celsius, and the boiling point is between 614. and 724. 4 degree Celsius under the condition of press 760 Torr (3). Sucralose is stable in solution at low pH, and also stable in solution at high temperatures as sucrose. Therefore, it can be stored for several years in liquids (3). The density of sucralose is about 1. 694 g/cm3 (3). The below chemical structure for sucralose was retrieved from the Dictionary of Food Compounds (2): Sucralose was first synthesized by Hough and co-workers at the Queen Elizabeth College at the University of London during the 1970s and was developed commercially as an intense sweetener by Tate Lyle, LLC and McNeil Specialty Products Co (4). Sucralose is made by the selective substitution of three hydroxyl groups of sucrose with three chlorine atoms, which was first approved as a food additive in Canada in 1992 and has subsequently been approved in over 80 countries as an intense sweetener (4). Sucralose can be slowly hydrolyses to the two monosaccharides 1,6-dicholorofructose (1,6-DCF) and 4-chlorogalactose (4-CG) under severe acidic conditions, so the formula cannot be found in natural waters (4). Sucralose is usually used in baked goods, sugars, alcoholic drinks, dairy products, cereals, fruit, beverages and nut products (3). In general, sucralose may cause toxicity to aquatic organisms at concentrations ? 1123 mg/L (4). A range of long-term mammalian toxicity studies indicates that sucralose has no known specific mode of toxic action and causes no adverse effects on major physiological systems (4). Recent research concerns that the potential biological effects in non-target species living in areas receive discharges from anthropogenic activities due to the widespread usage and the high stability of sucralose. The Predicted Environmental Concentration (PEC) for sucralose, based on measured data in surface water, was determined to be 10 ? g/L. During the process, data support that sucralose does not cause toxic effects. In conclusion, the resulting conservative PEC risk quotient is 0. 08, thus indicating low risk to aquatic organisms. Although available data suggest that sucralose is persistent in the aquatic environment, current knowledge also suggests that this intense sweetener should not be classified either as bioaccumulative or toxic using standardized and regulatory valid PBT criteria (4).

Amadeus Essay -- essays research papers

At the age of the Enlightenment, Antonio Salieri becomes the most triumphant musician in the city of Vienna, however, without any warning his harmonious universe comes to an utter halt. Salieri’s absolute faith in the world, in himself, and in God is all at once diminished by this spontaneous child composer. When the two opposite ends meet, there emerges a fury, a rage, and a passion in Salieri to sabotage the boy that has secured Salieri’s deserved God given talent; to destroy the one pubescent child that has made him so mute and naked now in a world of discordance. Salieri’s entire reputation and boyhood prayer to attain fame thus rests on his ability to annihilate that child prodigy, Wolfgang Amadeus Mozart.In analyzing the two composers, Salieri and Mozart, there is a distinct line that clearly divides them. Salieri’s operas receive astounding receptions, making them the “talk of the city,'; shaking the roofs, buzzing the cafes, and even the name Sal ieri “sounds throughout all of Europe'; (2,3). The reason for Salieri’s success, as well as many musicians of the eighteenth century, is because they have become enslaved by the well-to-do and hence are “no better than servants'; (1,3). This applies especially to the king. For example, in Amadeus, His Majesty forbid any ballet in his operas. Imperial commands such as this are not to be interpreted in any way, in other words, they are to be merely obeyed without any dispute. Since operas tend to the needs of the high society in order to obtain recognition, the operas must communicate through the language of the nobility, that is, Italian. In addition, since the majority of the audience is made up of the upper class, the subject matter of the operas must consist of elevated themes. Such as, mythological heroes, kings, and queens, and so forth. According to the eighteenth century view, operas are supposed to be a sublime and an aggrandizing art. The elevated subject m atter is then chosen in order to venerate and honor the nobility. It’s purpose is to “celebrate the eternal in man'; says Van Swieten (2,4). Meaning that there is an element in a noble person that lasts without any end, like God who is immortal. God represents the everlasting and the eternality of existence, thus God gives inspiration to operas that... ...n do now is to die. And so he does. Although Mozart does suffer loss, the loss of his life and career, and is somewhat responsible for his downfall, he does not evoke sympathy or recognition. However, it is Salieri who contains all four elements of a tragic hero. Salieri loses practically everything he has faith in before Mozart appears. He suffers from the loss of dignity, esteem, and honor. Salieri also recognizes something he has never felt before, that is the “pain as I had never know it,'; (1,5), the pain from the beauty and delight of Mozart’s music. Thus, recognizing the limitations of his own talent, the mediocrity of his talent compared to the genius works of Mozart. He grows an awareness of disharmony in the universe that he has never encountered. Salieri clearly is culpable of his own tragedy. He is the Court Composer, his works are respected throughout Europe, and because he is not stupid, he does not say he is the better composer. Instead, he is the minor ity who actually appreciates Mozart’s music. There is definitely sympathy for Salieri, in that all human beings can work as hard as they want to at something and can still fail miserably. Amadeus Essay -- essays research papers At the age of the Enlightenment, Antonio Salieri becomes the most triumphant musician in the city of Vienna, however, without any warning his harmonious universe comes to an utter halt. Salieri’s absolute faith in the world, in himself, and in God is all at once diminished by this spontaneous child composer. When the two opposite ends meet, there emerges a fury, a rage, and a passion in Salieri to sabotage the boy that has secured Salieri’s deserved God given talent; to destroy the one pubescent child that has made him so mute and naked now in a world of discordance. Salieri’s entire reputation and boyhood prayer to attain fame thus rests on his ability to annihilate that child prodigy, Wolfgang Amadeus Mozart.In analyzing the two composers, Salieri and Mozart, there is a distinct line that clearly divides them. Salieri’s operas receive astounding receptions, making them the “talk of the city,'; shaking the roofs, buzzing the cafes, and even the name Sal ieri “sounds throughout all of Europe'; (2,3). The reason for Salieri’s success, as well as many musicians of the eighteenth century, is because they have become enslaved by the well-to-do and hence are “no better than servants'; (1,3). This applies especially to the king. For example, in Amadeus, His Majesty forbid any ballet in his operas. Imperial commands such as this are not to be interpreted in any way, in other words, they are to be merely obeyed without any dispute. Since operas tend to the needs of the high society in order to obtain recognition, the operas must communicate through the language of the nobility, that is, Italian. In addition, since the majority of the audience is made up of the upper class, the subject matter of the operas must consist of elevated themes. Such as, mythological heroes, kings, and queens, and so forth. According to the eighteenth century view, operas are supposed to be a sublime and an aggrandizing art. The elevated subject m atter is then chosen in order to venerate and honor the nobility. It’s purpose is to “celebrate the eternal in man'; says Van Swieten (2,4). Meaning that there is an element in a noble person that lasts without any end, like God who is immortal. God represents the everlasting and the eternality of existence, thus God gives inspiration to operas that... ...n do now is to die. And so he does. Although Mozart does suffer loss, the loss of his life and career, and is somewhat responsible for his downfall, he does not evoke sympathy or recognition. However, it is Salieri who contains all four elements of a tragic hero. Salieri loses practically everything he has faith in before Mozart appears. He suffers from the loss of dignity, esteem, and honor. Salieri also recognizes something he has never felt before, that is the “pain as I had never know it,'; (1,5), the pain from the beauty and delight of Mozart’s music. Thus, recognizing the limitations of his own talent, the mediocrity of his talent compared to the genius works of Mozart. He grows an awareness of disharmony in the universe that he has never encountered. Salieri clearly is culpable of his own tragedy. He is the Court Composer, his works are respected throughout Europe, and because he is not stupid, he does not say he is the better composer. Instead, he is the minor ity who actually appreciates Mozart’s music. There is definitely sympathy for Salieri, in that all human beings can work as hard as they want to at something and can still fail miserably.

Introduction to cultural anthropology Essay

Philippe Bourgois conducted fieldwork in urban United States and Central America in relation to political issues related to ethnicity, dislocation of street children, political violence, labor relations and popular resistance. In United States, Bourgois fieldwork mainly focuses on social suffering, cultural issues and political economy. His most recent work relates to substance abuse, homelessness, violence and HIV prevention. He argues that although inner city street culture of drug dealers emerges as a search for dignity and rejection of racism, it is one aspect that has led to personal degradation and community ruin. His assertion points out two interrelated concepts that are structure and agency used by anthropologists to understand how society is produced and reproduced. A major concern in this paper is an illustration on how structure and agency shape the lives of Primo Ceasar. A close look of the two terms has an outstanding feature that relates to live at inner-city streets. Structure is the recurrent patterned arrangements which limit choices and opportunities posed by individuals. On the other hand, agency is the capacity of individuals to act independently and make their own free choices. It is the intention, dream, hope, determination and effort to do something for change in support of continuity. The relationship between structure and agency as applied by anthropologists to understand how society is reproduced include the concept of complementary forces. A society is a collection of individuals from different backgrounds and considers certain values. Structure influences human behavior and individuals are capable of changing social structures they inhabit. In reverse to this position, the capacity of individuals as agents to construct and reconstruct their worlds is a common aspect observed by anthropologists especially Philippe Bourgois. A major difference between structure and agency is that the latter relates to ability of actors to operate independently of social structure constraints. The usage of social science has shifted towards the problem of autonomy. In this context, agency raises questions about importance of human intentions, nature and social aspect of freewill, political capacity and moral choice. Social structure determine individuals action in the aspect of what they think or feel about engaging in particular issues of life separated by external powers. A good example to reflect the concept of structure and agency is in the case of team members in sportsmanship. Each team member has the right to exercise freedom out of their own will but extent of action is governed by traditionally accepted rules of behavior in respect to a particular sport. In essence pressure from authorities and peers f prevents individuals from going against anything they would like to do. Another applicable example in relation to structure and agency is the inner-city life on the streets that results from social segregation of children leading to rise of homelessness. Street children in most urban centers are as a result of social marginalization that sees many of the children leave their homes to start life of drugs in urban centers. Structure and agency are common elements in life that shapes life of many individuals including Primo, Ceasar and Candy. The educational concept of ethnographies is emphasis on racism, immigration and sexism. Considering the concept of structure and agency in the aspect of freedom to carry on with personal activities out of free will is against political and social resistance. Primo a manager of crack house was one of the best friends to Philippe Bourgois and his life was shaped by following concepts of structure and agency. He never liked school and doing homework was one of the worst mistakes in his school life. The culture in New York City of rural working class affected many intimate relationships at young age and Primo fell in this category. In addition being way from parents meant inappropriate mechanism of escaping from ethnicity considerations. Primo inherited his mother’s identities and employee traits at inner-city street shop. He was very problematic to teachers and played certain tricks to protect himself from insults by his teachers. The conflict between Primo and teachers resulted to a bad relationship between son and mother. As a responsible mother, she instead Primo should respect teachers for better grades but this worsened the situation. Finding it hard to achieve in class, Primo opted for street culture where he started committing violent crimes. Out of free will a concept of agency, Primo adapted street culture in the context of accent, body language, clothing and play style. He was free to engage in any kind of activity as the environment allowed him to exercise the right of freedom. The bad relationship between Primo and his mother made him change his lifestyle to embrace street culture. This is a concept of structure and matters that arose such as failing to show his mother the grades he attained is an issue of agency. Having lived a life of freewill in the inner city Primo married and raised his family. He was bound to raise up his family a responsibility that saw him advice his own son to respect teachers for better results. The concept of structure and agency contributed to a certain level in the lives of Primo and many other people such as Ceaser and Candy. The common element among the three individuals was the concept of family, institutional and personal violent interfaces. Caesar was very violent and used to fight back at school that originated from the desire to exercise right of freedom. Meritocracy in the US The myth of meritocracy in America is real and people believe that those who are poor deserve to be poor because of their laziness and stupidity. The poor believe that wealth in America is based on merit a concept that to my opinion is material. The wealthy in United States of America have their position because of hard work and academic performance. Laziness is one major factor that makes people in U. S to be poor as there are many opportunities that can make an individual exploit his or her potential. Hardworking people in America never fail to get job and it is the reason that probes people to travel oversees as a way of exploiting available opportunities. My opinion or take about meritocracy in U. S is that those Americans who consider wealth in America is as a result of hard work and intelligence are wrong. The small percentage of poor Americans is a as a result of laziness and ignorance. This is because U. S is one of the most powerful nations in the world with an economic structure that can support all its citizens. This means that there are a number of opportunities that can provide Americans and other immigrants with job opportunities for better life.

The Middle Ages And Medieval Ages - 1603 Words

The Middle Ages or Medieval Ages is the time period in Europe between the fall of Rome and the beginning of the Renaissance (History). For this paper it will be referred to as the Middle Ages. This time is also sometimes described as the Dark Ages by some because of some of the bad events that happened and because they say nothing of importance came out of the time period. It is true Rome fell, there were many wars which caused many to die, a shortage of food that caused many to die and an awful sickness that caused many people to die. Despite The Great Famine, The Plague and the fall of Rome during the medieval time period, it should not be known as the dark ages due to the architecture, art, and both educational and the technological†¦show more content†¦Many different reasons with many different answers, however, the Roman Empire did fall and we were left with what we call the Middle Ages. There have been many movies, books and papers written on the subject. One thing I f ind is a for sure fact is that after the fall of Rome there was no state or government for the people in Europe and that’s how the Catholic Church became the most powerful institution in the Middle Age time period(History). The first two reasons that the Middle Ages should not be called â€Å"dark† is the art and architecture created in the Middle Ages. Huge cathedrals and ecclesiastical structures such as monasteries were built to show devotion to the church (History). There were two styles of architecture during this time. The Romanesque style cathedrals were solid with barrel vaults supporting the roof, thick stone walls and few windows (History). The Gothic style has many huge stained glassed windows, pointed vaults, arches and in contrast to the Romanesque style cathedrals they seemed to be weightless. The Sainte-Chapelle is an example of one of those cathedrals that is still standing today and in 2015 the project restoring the stained glass windows were completed (Smith). Stained glass windows are a form of art that came from the Middle Ages. Another example of stillShow MoreRelatedMedieval Church And The Middle Ages1435 Words   |  6 Pages The time period lasting from approximately 800-1500 A.D. was known as the Middle Ages. The most important component of the Middle Ages was feudalism, a system of social hierarchy. In the European feudal pyramid, the uppermost ranking was the king, followed by nobles and church officials, knights, and peasants. One’s social ranking determined their place in society as well as their amount of power. The manor system was the economic system associated with feudalism. 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