Separation Of Milk Lab

For this experiment we will be testing four different bacteria with four different tests, using glucose, lactose, and sucrose. Hopefully we will use the information from those test to be able to identify the organisms in each of the samples from the case studies. We will use the results from the four different tests along with the information of how different bacteria react to match up to the case scenario and identify the bacteria, then check to see if our guess was correct. The findings are that we were able to identify, by process of elimination, the four different test bacteria.

* What is the intent of the lab? What issues are addressed? Why is it important? What are the goals?

The purpose of this lab is to separate a mixture and determine the percentages of each of the ingredients. Each substance will have a different boiling point due to its intrinsic properties and from that, we will be able to determine the purity of different products as we evaporate off the next level of product.

Just like the water and gas in our lungs, the milk and food coloring would not have been able to mix. Both the liquid soap and the surfactant reduce the magnetic force that unites liquid molecules- in this case allowing milk and food coloring to mix. Without this experiment, we’d be overlooking one of the many

What is the goal of this lab? What question is it trying to answer, or what problem is it trying to explain?

It contains the mineral calcium, which build bones and keep them healthy. Osteoporosis is a condition where your bones are pourous and break or fracture very easily. Drinking milk and obtaining calcium helps prevent this in a major way. Protein is also found in milk, and is also extremely important.. Protein is used by your body to repair and make tissue, such as your hair and nails, and is also used to make enzymes, such as lactase, to speed up chemical reactions in your body. One last thing found in protein is potassium. Potassium helps maintain mineral and water throughout your body, can help control muscle growth and plays a big role in nerve function. Regular drinking milk is broken into four main types, with countless products branching off. These four types are whole milk, 1% milk, 2% milk, and skim milk. The types are divided by their fat contents (whole being the highest in fat, skim being the lowest). The brand of milk that will be used in this experiment is Horizon. This brand is part of the National Organic Program, so the cows producing the milk will not be genetically modified. This means the cows will not be given any hormones or preservatives, which could potentially effect the milk, and how the lactase responds to

Preventive medical care in the form of vaccines, vitamins, minerals and any approved supplements is strongly relied on to keep the animals as healthy as possible. The process used to bottle and pasteurize the milk produced from these cows must also be certified and the organic milk has to be kept separate from nonorganic milk to uphold its integrity as an organic commodity. Other ingredients used in this process all have to be organic unless there is no organic equivalent. Organic chemicals like volatile synthetic solvents and other synthetic processing aids are also prohibited during the bottling process further upholding the integrity of the milk.

As the dilution factor increased for both the raw milk (unpasteurized) and pasteurized milk samples, the number of colonies decreased. The number of cells/mL in the pasteurized milk sample is considerably less than the number of cells/mL in the raw milk sample.

One or two checks and tests were put in place in order to validate the data trends. A colorimeter was used as a more scientifically consistent measure of milk clarity: (one sample was taken from each temperature setting) and mean readings were calculated from the table results to hopefully reduce the effect of moderate outliers.

4) Every cup should have the same amount of milk and coffee. You should also prepare every cup at the same temperature. The only difference should be what order the milk is added. If you don't, two cups with milk

Parents are concerned about the milk being pasteurized and its harmful effect on their children since most of the nutrient in the milk is destroyed during the process of pasteurization. Soy milk has gained an image as a healthy alternative milk, if now being transformed, parents will consider the soy milk like a high-risk milk. Drinking milk is nature’s most perfect food. Our children need great source of milk in order for them to be strong and healthy women and men tomorrow. In today’s world, there is a major wake-up call for anyone who use pasteurized or processed food. These kind of food weaken our body and our health. Imagine our little ones being fed with them, it

Dependency of curd mass on four different types of milk (Non-Fat, Low-Fat, Reduced-Fat, Whole) using lemon juice Purpose The purpose of this experiment was to determine if lemon juice would cause the different fat levels in milk to affect the curd mass. Background Information The major components of milk are water, fat, proteins, lactose, carbohydrates, and minerals (dairyprocessinghandbook.com) with the main proteins in milk being casein and whey. When the casein protein separates from the whey, fat, and lactose in the milk, the product is micellar casein.

Although carrageenan may interact with other casein fractions in milk, the binding is much weaker than that with casein, and does not result in gel formation. The presence of the other fractions, such as occurs in whole casein, in fact decreases the sharpness of the sol – gel transition.

A lot of these problems seen in formula feed babies are due to the fact that the particular composition of the formula doesn’t suit their digestive system. Breast milk consists of the optimum proportions of fats, carbohydrates, proteins, vitamins, minerals and water. It is extremely digestible for a new-born baby because the milk is naturally refined to perfectly suit the baby’s digestive system. The milk also contains growth factors such as, epidermal growth factor (EGR) and insulin-like growth factor. The epidermal growth factor works by helping to prepare the lining of the gut to absorb the nutrients from the milk consumed. Insulin-like growth factor is believed to be one of the primary factors regulating early growth and development. Breast milk also contains essential fatty acids that are not present in most formula milk products. The two essential fatty acids present in breast milk are docosahexaenoic acid and arachidonis acid. Both of these play a vital role in optimal development of the central nervous system, intellectual and visual development in babies. Furthermore, one of the most prominent advantages associated with breast feeding over formula feeding babies is that, breast milk naturally changes composition to correspond to the stage of development of the infant. For example, colostrum is the name given to the first milk produced post-delivery. It has an abundance of white cells and antibodies, it also contains a

Unlike what we have been thought, milk is unhealthy and it will cause many different diseases in human’s body. Even though that they try to limit the bacteria in raw milk before and after milking, but they just can lower the level of bacteria, they can’t remove all of it, and by drinking milk we transfer diseases to our body (Garedew et al, 2012, p 950). Before milking they will sterilize cow’s breast and also they will inject antibiotics to lower the level of bacteria in cow’s body. They also use sterilize milking equipment so the bacteria available on the equipment will not reach cow’s breast and directly milk. With all those sterilized processes they still need to do the pasteurization process because of