Observe after at least 5 minutes. For a closer examination, use the glass rod, popsicle stick or toothpick to hook the precipitate. * Step 6 – Pour the liquids down the sink and clean the rest of the equipment. Read more at Suite101: How to Extract DNA From Fruit and Vegetables: A Home Experiment for Viewing Real Deoxyribonkucleic Acid http://www.suite101.com/content/how-to-extract-dna-from-fruit-and-vegetables-a76806#ixzz1EkVq2LaJ Theory The mashing breaks the cells apart. The detergent breaks them open, freeing the cell contents (including the DNA).
Oil-in-Water & Water-in-Oil Emulsions Introduction In this activity we will compare water in oil emulsions and oil in water emulsions with water-soluble food coloring. Material 5 small cups Microscope slides Food coloring 5 coffee stirrers Whole milk Butter Margarine Mayonnaise Vinaigrette dressing To Do and Notice Bring butter and margarine to room temperature before the start of the activity or melt 1 tablespoon of each in the microwave for 30 seconds. Measure out approximately one tablespoon of butter, whole milk, margarine, mayonnaise, and salad dressing into 5 separate small cups. With a dropper place a few drops of food coloring onto the surface of each sample. Mix each sample with a coffee stirrer then use the stirrer to spread a thin layer of each stained sample on a microscope slide.
3. Then, we flashed it forward through the cylinder and saw a little red but little to less of any colors 4. We then used store bought milk with a little water to see if there was a difference in school milk and store bought milk. 5. With the store bought milk we flashed the flash light above the cylinder and could see blue and a little red/orange sunset in the bottom of the blue.
Many dieters say soy milk is perfect, but nevertheless there are many others who say that almond milk is the best. My intention is to compare soy milk (vanilla) versus almond milk (vanilla) and expose the strengths and weaknesses of both in order to have a better understanding at the time of purchase. All the nutritional data I’m going to use for this comparison has been obtained through ESHA, with a control of 8oz of each product. Calorically speaking, vanilla soy milk has about 150 calories versus 90 in the vanilla almond milk. For those people that count calories, almond milk has the advantage.
Now it’s time to do the mixing!! Gather all of your ingredients for the crust and a large mixing bowl. The first step is to add 2 cups of sifted flour into the large mixing bowl along with 1 cup butter flavored shortening. Then use a pastry cutter or dough hooks to mix well, once all the ingredients are combined and resemble crumbs add the 1/3 cup of ice water use the folding method to combine, and lastly form a ball. Warp the dough ball with plastic wrap or whatever you may have set in the refrigerator for no less than 40 minutes.
Milk (Transition: Once we have all the ingredients together we can start to put together the cookies.) II. The second step in making sugar cookies is mixing and baking. A. The first part of this step is to mix the ingredients together.
Look in the water bath on your table for a flask labeled DMA. This flask contains Davis Minimal Agar that has been autoclaved to make it sterile, and is being kept at 47 C to keep it liquefied. 3. Think about these important points in pouring a petri plate before doing it: a) You must work quickly, because once the container of minimal agar is removed from the bath, it will start to harden within 2-3 minutes. b) When pouring agar into the petri dish, pour just enough to fill the dish about half way.
The reagent we use is Benedict’s reagent. Reducing sugar will show positive result while non reducing sugar will not. To test the presence of starch in our next food test, iodine is use. When starch is present the iodine added on it will change its colour from yellow to blue black. For the food test that use to determine the of presence protein we use Biuret test instead of Million’s Test.
5 drops of water and 5 drops of the calcium nitrate solution were pipetted for each well. For the second part of the experiment, 5 drops of 0.1 M sodium hydroxide were added to wells 1 through 6. The well plate was left for 5 minutes allowing the precipitates to form. Using Table 2 given in the lab manual, the solubility product was calculated and the experiment results were compared to the accepted values. For the third part of the experiment, the process of part 1 was repeated using sodium hydroxide.
We can eat plenty of vegetables, fruits, and whole grains. Compare labels and look for ones with lowest amount of sodium and sugar. “Add flavor with delicious herbs, spices, black pepper, and citrus juices instead of sugar, salt, and unhealthy foods.” There are plenty of alternatives for sugary flavors. What foods don't have a lot of added sugar? Many foods don’t contain added sugar.