How to Test for Protein in Food

Protein is an essential nutrient that builds muscle in the body. Its also easy to test for. Heres how: Protein Test Materials Calcium oxide (sold as quicklime in building supply stores)Red litmus paper (or another method to test pH)Â  WaterCandle, burner, or another heat sourceEye-dropperTest tubeMilk or other foods to test Procedure Because milk contains casein and other proteins, its a good food to start your testing with. Once you understand what to expect from testing milk, you can examine other foods. Add a small amount of calcium oxide and five drops of milk to a test tube.Add three drops of water.Dampen the litmus paper with water. Water has a neutral pH, so it should not change the color of the paper. If the paper does change color, start again using distilled water rather than tap water.Carefully heat the test tube over a flame. Hold the damp litmus paper over the mouth of the test tube and observe any color change.If protein is present in a food, the litmus paper will change color from red to blue. Also, smell the test tube: If protein is present, you should be able to detect the odor of ammonia. Both of these indicate a positive test for protein. If protein is not present in the test sample (or is in insufficient concentration to produce adequate ammonia during testing), the litmus paper will not turn blue, resulting in a negative test for protein. Notes About the Protein Test Calcium oxide reacts with protein to break it down into ammonia. The ammonia changes the acidity of the sample, causing a pH change. If your food is already very alkaline, you wont be able to use this test to detect protein. Test the pH of food to see if it changes the litmus paper prior to performing the protein test.Milk is an easy food to test because its a liquid. To test solids, such as meat, cheese, or vegetables, you must first grind the food by hand or by using a blender. You may need to mix the food with some water to make a sample you can test.The test registers a change in pH, which is the concentration of hydrogen ions in an aqueous or water-based solution. Most foods contain water, so they work fine for the test. However, oily foods may not work as well. You cant test pure vegetable oil, for example, because it doesnt contain any water. If you test greasy foods, such as french fries or potato chips, youll need to mash them up and mix them with a bit of water first.

A Brief Note On The World Of A Big World - 1286 Words

Rachhpal Singh 12/10/15 Eng. 125 Mr. Jordan Dakin Really Small Thing in a Big World With the boom of modern technology in the late 19th century it has only grown from helping human like through medical innovations to bringing the worst of humanity in the time of war like weaponing tear gas by the French then poison gas by Germany in World War 1. This has not been the first advances in technology. Railroad made transporting large quantity of products from one states to the others faster. Telegrams and telephones made it easier to communicate over large areas in very short time. And then came the internet which tore down all borders and shrunk the world into a new state where a person could communicate with another siting in other country†¦show more content†¦Nanotechnology can revolutionize the world in the fields of medicine, environment, technology, etc. In â€Å"Nanotechnology Could Alleviate Many of the Problems of the Developing World† Heller, Jacob, and Christine Peterson stated that â€Å"A Paper by Fabio Sala mance-Buentello et al. founded that nanotechnology could be applied to attain at least five of the eight United Nations Millennium Development Goals (MDG).† United Nations Millennium Development Goals are as followed: eradicating extreme poverty and hunger, achieving universal primary education, promoting gender equality and empowering women, reducing child mortality, improving maternal health, combating HIV and AIDs, malaria and other diseases, ensuring environmental sustainability, and developing a Global Partnership for development. Photovoltaic cells based on quantum dot technology, nanocrystals for hydrogen creation and the production of hydrogen storage systems based on carbon nanotubes would significantly improve environmentally sustainable development (Heller, Jacob, and Christine Peterson). â€Å"Although hydrogen is an alternative to fossil fuels, it formation, storage and conversion to electricity as facing technological challenges. However, in the use of water as a renewable resource to produce hydrogen, the uses of nanocphoto catalysts have shown promise.,† argued Karunaratne,

Sexual Harrasment in Egypt Free Essays

Sexual harassment is a common occurrence here in Egypt whether it’s verbal or physical harassment. As sad as it may seem I was never affected by this problem until it happened to me a couple of months ago. I was walking one afternoon with my mother and young sister on Baghdad Street we were window shopping and having fun, but suddenly out of the blue a guy passing by with a bicycle touched me in an inappropriate way. We will write a custom essay sample on Sexual Harrasment in Egypt or any similar topic only for you Order Now At first I was too shocked to do anything and by the time I started to yell it was too late the guys had disappeared down the street.When that happened to me I began to pay more attention to the situation in Egypt because sexual harassment in Egypt is increasing at a alarming rate and it needs to be stopped. It not only happened to me but it also happened to some of my friends and relatives, the streets of Cairo are unsafe for woman no matter how early or late the time is there is always a possibility of sexual harassment. There are many reasons for sexual harassment and its effects on women are catastrophic women are afraid to walk on the streets for fear of harassment, it also have a major effect on the society and it affects how we Egyptian are viewed to the world.One of the main reasons that sexual harassment happens is because the harasser can get away with it and that affects women and our society. In Egypt there is no punishment for sexual harassment people could do it and get away with it (Reem Leila). This has many effects to it, first when harassers realize that they could harass and get away with it there is nothing stopping them from doing it again and that makes the women more afraid of walking on the streets in Egypt and if they did walk on the streets they wouldn’t feel safe always looking behind their backs always expecting to be harassed.Moreover it also affect the society for example the incident that happened in down town Cairo that groups of men started to aggressively attac k women in front of a movie theater( El Khashab). The shop keepers who tried to help the victims were hit by the attackers (EL Khashab) and that made most of them afraid to help the women which led to more harassment and women screaming on the streets and that led to the anger of society as a hole against the government because not only women are being harassed but men were hit for trying to help they blame the government for not putting policemen on the streets on such a busy day and for allowing the arassers to get away with what they did. Sexual harassment not only affects the victims but it also affects the society. As sexual harassment here in Egypt began to increase people started to blame the victims saying that they brought it upon themselves and that it was there faults for making men harass them (Abdelhadi). People say that because of the way women dress they are harassed which is unfair because when the ECWR (Egyptian Center of Women’s Rights) conducted a study on this they found out that veiled women are more often harassed then women with no veil (Fayed).When women are blamed for this they will not be able to report on harassment and they will start to blame themselves for causing the harassment to happen and start to believe what the people are saying. Then women will be too ashamed of being physically harassed that they won’t even mention it to anyone even their families which is unfair and morally wrong to accuse them in the first place.This will also lead to women being afraid on the streets for when they hear that they are blamed for the harassment they will want to go out less and always want to stay at home they will be afraid to go to their work and that is really sad because women deserve to be free and not live in fear in Egypt. Police stations disregard sexual harassment saying that it’s not their problem that women are harassed (Fayed) and that makes the society angry because it’s the police job to take care of the women and they are not doing anything to stop sexual harassment from happening.Not only is sexual harassment ruining our society, but also tourism is affected too. According to ECWR 82% of foreigners are sexually harassed here in Egypt foreign embassies in Egypt have been receiving many complaints against the harassment in the streets. They are very worried about the safety of their female nationals (Reem Leila) ,and now foreigners here in Egypt are advised by their embassies to be very cautious when they are on the street and try as hard as they could not to be alone (Reem Leila). This has many effects on Egypt because it not only tarnishes the view of Egypt and the Egyptians it also makes tourism happen less and less.In Egypt we depend on the tourism income, and because of sexual harassment either verbal or physical tourism began to decrease. Tourists are advised not to come to Egypt and if they did they should expect to be sexually harassed. When tourism starts to decrease some of the people whose job depends on tourists will be out of business and then they will become poor and poverty rate will increase in Egypt. It also affects us Egypti ans as we are viewed through their eyes they will think that all Egyptian men are harassers and there are no good people in our society which is sad because nit all men are like that. There are lots of thing that needs to be done to prevent sexual harassment from happening. There should be police officers in crowded areas to prevent the repletion of the down town incident. Women should have the right to report about sexual harassment and not be laughed at, and there should be new laws that punish harassers so that they cannot get away with it every time. People should stop blaming the women for being sexually harassed and try to think of solutions to prevent it and not making the women feel ashamed. How to cite Sexual Harrasment in Egypt, Papers

Education in America free essay sample

Education in America Malcolm X once said, â€Å"Education is our passport to the future, for tomorrow belongs to the people who prepare for it today. † There are many options available concerning the education of the future men and women of America. Since private schools can be a heavy burden on one’s wallet, most people are left choosing between public education and home schooling. There are many factors that must be considered while deciding which is more suitable. However, some of the most important would be the instructors, how well the students’ needs are met, and the effectiveness of each. They both have their own advantages, and disadvantages, making it difficult to choose between the two. Where a student’s learning takes place is not nearly as important as who is educating them. It is extremely important that the person entrusted with the task of educating students be well qualified to do so. Some parents enjoy the idea of home schooling because they can teach their children themselves, or choose who does. However, the task of ensuring the chosen instructor is of sound credibility can be a daunting one. Although home schooling allows for the opportunity to choose a student’s instructor, the teachers within the public education system are all guaranteed to be certified. They also have a set curriculum for their students that they are comfortable with, while home schooling gives one the chance to oversee the student’s curriculum. One would be able to change lesson plans, or things of that nature as they see fit. Another benefit of home schooling is that the student does not need to change instructors annually. The same one can be used for a number of years allowing for a strong and trusting relationship between them and their pupil. This is only the first step toward ensuring that all of a student’s needs are being met adequately. Every student has their own individual needs that go far beyond simply finding a good instructor. In these areas home schooling may very well have the upper hand because public education simply is not flexible when it comes to things such as scheduling, and class size. Some students work better in the morning, and some during the afternoon. Home schooling gives the student/parent the right to say when it is best for them to study. This ensures that to student is working to the best of their ability. In addition, home schooling allows the student to learn at a pace which is comfortable to them; as opposed to trying to keep up with a class. The ever growing class size of an average public schoolteacher does not leave very much time to be spent with individual students. Home schooling gives the teacher and student plenty of one-on-one time. This strengthens the aforementioned bond between the pupil and the instructor. All of this helps to ensure that the student will come away with a comprehensive knowledge of everything they are being taught. Although, despite all of this flexibility, public education gives young people something that many home schooled people do not get: socialization. Public schools give students the chance to be around peers and develop social skills that they will need in order to in life. Social life aside, home schooling can be just as effective as a public education would be. In the school year of 2008-09 a total of 3,039,015 public school students received a high school diploma. The Averaged Freshman Graduation Rate for that year was 75. 5 % (Robert, 2011). Although there are no statistics readily available for home schooled students it can be assumed successful simply by the growing numbers over the years. In 1999 there were only 850,000 students being home schooled in the United States; that number rose to 1. million in 2003, and then to a staggering 1,508,000 in 2007 (Bielick, 2008). As the state of our public education system continues to decline, those numbers continue to grow. However, even with the rise in numbers of students now being home schooled, it is still difficult for those students to find a college that accepts home schooling credits. Universities and colleges require some form of a diploma to enroll, but there are multiple solutions to that proble m. A bigger problem is making sure that the student is adequately prepared for college level courses. In a study done in 2005, they found that 39% of recent high school graduates found gaps between what they were prepared for in high school, and what was expected of them in college. Even 42% of college instructors believed that high schools do not adequately prepare their students for college (Peter D. Hart Research Associates, 2005). Due to the fact that a home schooled students’ curriculum can be watched closely, they have the opportunity to be better prepared for college level courses. This also enables them to learn. Education is the key to preparing young men and women to be successful in their future. There are now more options available than ever concerning the education of this nation’s youth. This is why it can be so difficult to choose how and where they should be educated. The students’ needs must be carefully considered before any decisions can be made. Public education and home schooling both have many advantages, and disadvantages, making it difficult to choose between the two. One must look closely at the differences between them, and decide based on their own needs and circumstances, and those of the student.