4/4/2013 Food Preservation Methods Food Preservation Using Chemicals SMY04032012 A naturally / synthetically produced substances that is added to food/beverages to prevent spoilage Preservatives: The good‚ bad and ugly! 1 4/4/2013 Sometimes‚ food may spoil because of the changes in the food itself. When food spoils‚ the following may change: • appearance • taste • texture • odour © Food – a fact of life 2007 Food may become unsafe to eat. Micro-organisms need certain
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Significant results were obtained for acidity‚ 0Brix‚ Reducing sugars and ascorbic acid with regards to the treatments as well as storage. The pH was non significantly affected by treatments; however‚ storage had significant effect on it. The acidity‚ 0Brix and reducing sugars increased while pH and ascorbic acid decreased during storage. The acidity and pH changed gradually in all treatments while 0 Brix‚ reducing sugars and ascorbic acid changed differently and maximum variations were observed in
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protein’s structure is disrupted. Ovalbumin is denatured by heat. In my science class‚ I had learned that heat and pH affect the denaturation of protein. I became curious about how changing the pH would affect the denaturation of ovalbumin when cooking meringue. So I decided to add lemon juice to egg whites and heat the egg whites. The citric acid in the lemon juice would lower the pH of the egg whites. I tried to find the answer to the question‚ “How does citric acid affect the denaturation of the
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IX. CONCLUSION Overall‚ our hypotheses were proved to be mostly correct. We believe that if the amount of sodium citrate is too low or too high‚ the sodium alginate solution would not form into a ball. The recommended amount of sodium citrate to be added to the sodium alginate solution was ⅛ teaspoon‚ or 0.5 grams. We supposed that if we exceeded this measurement‚ the sodium citrate would unbalance the whole solution‚ making the balls deform. If we added too little of the sodium citrate‚ we thought
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test the pH level of everyday fruits to see how acidic they actually are. When eaten‚ which fruit will have the lowest pH (be the most acidic)? Hypothesis A sign that a fruit is acidic is a sour taste. Out of all the fruits being tested‚ lemon is the most sour. The common assumption is that the lemon‚ the most sour fruit‚ will be the most acidic and that the banana‚ the least acidic fruit‚ will be the most alkaline. The hypothesis of this experiment fits this assumption. If the pH of different
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Effect of Sugar on Bean Plant Growth Abstract The objective: My project was to determine if bean plants grew stronger and healthier by the addition of the right amount of sugar to their watering. I believe that plants that receive 50 grams of sugar per liter of water would help bean plants grow to be stronger‚ healthier and larger because they would get energy from the sugar. Methods/Materials 36 bean plants were grown in potting soil. The same amount of soil was used in each pot and it had no added
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Lab Report: How Do Different pH Levels Affect The Growth of Plants Introduction: Plant growth is affected by various environmental factors‚ and pH is one of those. The pH of soil and the water that plants receive can have an impact on whether they obtain nutrients or not. Ph impacts the chemical reactions that take place within a plant‚ if the pH of the soil or water that the plant receives is too low (acidic)‚the nutrients that the plant requires may become extremely soluble to the point where
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It is important that you choose a spot that gets full sun for at least five hours of the day. Ensure that the spot is not too windy. The soil should be well-drained. Before planting the tomatoes you should dig in generous amounts of cow manure as well as adding light sprinkle potash and a handful of lime for every square meter. The soil needs of sufficient amount of calcium which is why you would add the lime to soil‚ also you could apply pent moss. Compost or manure to the soil to improve its quality
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Black Garlic Omelet and Spinach Waking up in the morning and eating a delicious cheesy omelet sounds like a perfect morning breakfast. And with this wonderful and healthy omelet recipe‚ you will be packed with energy to last the whole day! Yields: 3 Servings Ingredients: 3 tbsp. of Cheddar Cheese 3 Eggs 1 clove of Black Garlic 3 tbsp. of Parmesan Cheese ¼ cup of Tomatoes ¼ cup of Green Onion A pinch of salt A pinch of Pepper 1 cup of Spinach Some Olive Oil/ Cooking Spray Method of Preparation:
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from dark green to a beautiful orange color. The dark green vegetables are usually the leafy vegetables‚ and squash‚ pumpkin‚ and sweet potatoes are examples of the orange family. Some vegetables have a red/blue coloring such as eggplant and red cabbage. Many articles today have different ideas on the amount or servings of vegetables a person should eat per day. The amounts can range from two (2) up to nine (9) servings per day. The majority of nutrition specialists suggest 2-1/2 cups per
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