The use of protein digesting enzymes (proteases) in industry
The use of protein digesting enzymes (proteases) in industry Proteases are enzymes that act on proteins and convert them to peptides and free amino acids. They play an important role in the food ingredients, beverage, detergent and leather industries. Depending on the application acid, neutral and alkaline proteases are available. [1] The digestive juices present in the duodenum (first part of the small intestine) contain proteases, protein-digesting enzymes which include both exopeptidases and endopeptidases. Aminopeptidase is an exopeptidase that acts on terminal peptide bonds at the amino end of a polypeptide chain. Endopeptidases such as trypsin catalyse the hydrolysis of internal peptide bonds. These enzymes may be very specific, acting on bonds linking two particular amino acids. [2] The degradation of protein macromolecules is catalysed by proteases. These enzymes have a significant and increasing application in many areas of medicine, for a wide range of purposes connected with removal or degradation of protein. [3] protein protease peptides and amino acids Proteases are added to meat to influence the tenderization of it, this is a long established practice. By far the most widely used enzymes is papain from the latex of papaya plant. Papain can be added prior to slaughter by injection or after slauter. [3] Proteases are also added to flours. The protein
Write a close analysis of Lines left upon a Seat in a Yew-tree which stands near the lake of Esthwaite from William Wordsworth and S. T. Coleridges Lyrical Ballads, discussing whatever features of language or themes seem important.
Write a close analysis of 'Lines left upon a Seat in a Yew-tree which stands near the lake of Esthwaite' from William Wordsworth and S. T. Coleridge's Lyrical Ballads, discussing whatever features of language or themes seem important to you. Your essay should discuss at least one other poem from Lyrical Ballads, AND/OR look at a version of this poem in the 1800 edition of the text, AND/OR draw on Wordsworth's theories of language and poetry as laid out in the prefaces to Lyrical Ballads. Wordsworth's Lyrical ballads is a seminal piece of work in literature as it initiated the Romantic era of poetry by emphasizing felling, instinct and pleasure above formality and mannerism in verse. His poetic work revelled in its plain spoken and easy to understand language in his attempts to imitate the "language really used by men"1 so that anyone was capable of extracting meaning from his work. Common too many of his poems and to the Romantic Era is the concept of lost innocence that centres on the perversion and failure of an industrialised society. It is in this respect, that Wordsworth believed imagination and escape were essential to operate in an industrialised world but, as argued in the following poems, to what degree is it safe to retreat into one's own psyche or rely on the social justice of industrial society. The poem The Dungeon is an extract from a play by Coleridge. It is
Stock Market Crash
Stock Market Crash A stock market crash is a sudden decline of stock prices in stock markets. It usually happens due to panic among stockholders and various economic factors. These crashes usually occur after a long period of rising stock prices (due to going speculations), when P/E ratios are far above their averages. According to Benjamin Graham, the father of securities analysis, there are three main forces behind the market crash: the manipulation of stocks, the lending of money to buy stocks and excessive optimism. The most famous market crash, the Wall Street Crash of 1929, also known as Black Tuesday, happened on October, 29 1929. It is regarded as a start of the Great Depression. All of the three forces mentioned above contributed to this crash. American economy was blooming in the 1920s. NYSE was the largest stock market in the world. From 1920 till 1929 many stocks quadrupled in value. Thus, many people invested their money in stocks, expecting to gain profit. It led to speculative boom that took place in late twenties: the rising share prices were encouraging people to invest even more. Many of the investors had to borrow money to buy stocks but they only had to have 10% equity and 90% margin to buy securities. Speculations on stocks stimulated further price rises and created an economic bubble. The P/E ratios in 1929 were far
Psychological Theories Paper
Psychological Theories Paper Donna Stefanick Psych 535 February 14, 2011 Dr. Frances Kelley Psychological Theories Paper Developmental Psychology is a field that studies the changes that occur in a person over a lifetime. These changes include not only the physical, but the emotional, cognitive and social changes and advancements that occur in the course of a lifetime. This is one of the more inclusive fields of psychology that in its theories will incorporate many factors. And still, as with most of the field of psychology in general, it has been built and tested mainly on a small sample of the world population, western industrial mostly middle class subjects (Segall,1999). As such, the developmental theories are ethnocentric. As defined by Merrian-Webster dictionary (2011) this means "characterized by or based on the attitude that one's own group is superior". Since the theories were built on a very specific ethnic population in a multicultural view, we cannot assume without further investigation that these theories are universal and apply to the development of all people, of all ethnicities. To illustrate this point this paper will discuss cross-cultural aspects in Erikson's Theory of Development. We will also discuss the ways in which our ethnocentricity affects the way we interact with others who are different than us. Erikson's Theory of Development In the
"Alexander II transformed the lives of the peasants" How far do you agree?
“Alexander II transformed the lives of the peasants” How far do you agree with this view? Alexander II did introduce a number of reforms in terms of changing the lives of the serfs, which were quite revolutionary for that period of time. The serfs were a big aspect of Russia’s life as they made up approximately 90% of the population and it was in Alexander’s interest to modernise Russia and with this idea in mind he introduced the Emancipation Edict of 1861 which was, in essence, supposed to be a dramatic change and thus would mean agreeing with the statement. However, to say that Alexander transformed the lives of the peasants, that is to say he completely changed the lives of the peasants, is rather inaccurate and it could be argued that, although many aspects were reformed and dealt with, peasants were living in similar conditions from the beginning of the period to the end. Economically, there were times in the period of Alexander II’s reign that the peasants’ lives did improve with the economic liberal Minister of Finance Michael Reutern who increased awareness of the government to promote economic development actively. Alexander II understood the need to emancipate the serfs in order for them to move around freely and develop, ultimately to begin to help with the industrial and financial progress of Russia, and because of this, under him, there was 20 times
Importance of learning the English Language.
Kandidatnr: SAN1544 Fagkode: ENG1002 Eksamensfag: Engelsk TASK 1A Letter to my teacher I would like to read something that increases my interest of the world society. A literary work that will have an effect on how I see things and what I decide to do later in life. I would like to read a text that contains of a world conflict, politics, human rights or enslavement. I have read “A Thousand Splendid Suns” by Khaled Hosseini and I would like to read a factual text that has the same effect on me. I got as involved as a 15 year old from Norway could, learned more about it and took part of discussions online. The book changed my life in many ways as got a newfound respect and understanding towards developing countries. I also learned a lot about myself as a person. I learned that I want to make a difference and work as a lawyer in the UN. If I were to pick up a book today, it would have been a book about conflicts in Africa. I would like to learn more about it and try to figure out what that could have been done, and what must be done to prevent future conflicts. I believe discussing in a group session about casualty and our own opinions is going to make students, and myself, more comfortable with expressing our own ideas and how we see things later in a professional life. Having debates and discussions in class leaves the students
Successfully developing and maintaining an area of natural scenic beauty and amenity as a tourist resource, so as to maximize the benefits obtained from it, involves resolving many conflicts. How far do you agree with this statement?
Successfully developing and maintaining an area of natural scenic beauty and amenity as a tourist resource, so as to maximize the benefits obtained from it, involves resolving many conflicts. How far do you agree with this statement? In order to maintain the attractiveness of a tourist destination sustainable tourism should be achieved. Which is maintaining the quality and the productivity of an attractive resource base over time, the resource base will include, the natural and built environment, the character of society and culture and the economic viability of the communities. In MEDC's such the UK measures have been taken to resolve the conflicts posed by tourism. The Lake District National Park was set up in 1952 it covers 3000 sq km and has a population of 42,000 . It receives 15.8 million visitors a day and about 80% come by car. People come here for the attractive resources which include the lakes, uplands and mountains, the traditional settlements such as Keswick and Hawkshead and the 19th century resorts such as Ambleside. However this results in a number of problems as the park has limited access at peak season it is congested. Furthermore there is footpath erosion and destruction of vegetation due to increase visitor usage. During the trampling the soil compacts reducing the infiltration rate and water will tend to run off land washing away soil particles. With
"Nature is not just a matter of representing landscapes, scenes and creatures; it is a source of inspiration and emotion." Discuss with reference to three poems from two different sections.
"Nature is not just a matter of representing landscapes, scenes and creatures; it is a source of inspiration and emotion." Discuss with reference to three poems from two different sections. Nature has been in used in poetry for years to express inspiration and emotion. However, it was during in the 18th century when Jean Jacques Rousseau rejected civilized society and glorified the state of nature, and in that his writings ushered in the age of Romanticism. Poetry written in this period placed more emphasis on the emotional side of human beings, on the virtues of nature and on the perfectibility of nature. Romantics believed in idealism, which existed in nature, thus they portrayed their sentiments through nature and its surroundings. The writers of the period 1880-1901, were known as the Victorians. Britain was the most powerful nation in the world and it had made lot of scientific and industrial progress in the recent years. However, Victorian poets were often uncertain about life as there was a massive crisis of faith during this period. This is reflected by their poetry as for many, the Victorian period was of physical comfort but of spiritual doubt. Victorian poets, like the Romantics used nature to convey their passions and feelings. I have decided to explore the themes and the use of nature in three different poems, namely, "Composed Upon Westminster Bridge,
Causes and Solutions to Air Pollution.
Diana Faught Causes and Solutions to Air Pollution The air we breathe in the United States is polluted with almost 200 million tons of toxic emissions each year. Since air pollution is not confined to one specific area and everyone is affected, it is considered to be the nation's largest environmental health risk. Air pollution is the contamination of the atmosphere by gaseous, liquid, or solid wastes that can endanger the health of human beings, animals, and plants, or that can damage materials, reduce visibility, or produce bad odors. Air pollution is a major environmental health problem affecting both developed and developing countries. It has potentially serious effects on human health in urban areas where there is a high population density and a consequently large number of polluting sites. Concern focuses not only on ambient air quality in cities but also on indoor air quality in homes. In fact, the highest air pollution exposures occur in the indoor environment because it is released in close proximity to people who spend most of their time in homes. The Environmental Protection Agency (EPA) reported that toxic chemicals found in the air of almost every American home are three times more likely to cause some type of cancer than outdoor air pollutants. The EPA has found that the air in most office buildings is 100 times more polluted than the air outside.
The Applications of Enzymes in Industry and Medicine
The use of Enzymes in Medicine Enzymes are produced by living cells they are substances that act as a catalyst in living organisms, increasing the rate at which reactions take place without itself being effected in the process. Without them, reactions in cells would proceed at a too slower rate to sustain life. They are able to speed up the rate of chemical reactions. All enzymes are proteins and therefore have a tertiary structure. Each enzyme is a specific shape with an active site which is specific to one substrate molecule. When the substrate combines with the active site enzyme substrate complexes are formed. Ref. Letts revision guide biology at as / Understanding enzymes. Enzymes have several valuable industrial and medical applications. Due to the catalytic activity of enzymes they are able to be used in a variety of ways; Examples are in the fermenting of wine, the paper industry, starch industry, leather industry, baking industry, beer brewing industry, washing detergent industry and in the pharmaceutical and diagnostic industry. The uses of important enzymes in medicine include killing disease-causing micro organisms, prompting wound healing, and diagnosing certain diseases. Ref. Understanding biology for advanced level. Enzymes are used heavily in medicine. These applications include using enzymes as direct pharmaceutical
