History[edit] Popcorn on the cob before shelling Popcorn was first discovered thousands of years ago by the people living in what is now Peru. It is one of the oldest forms of corn: evidence of popcorn from 3600 B.C. was found in New Mexico and even earlier evidence dating to perhaps as early as 4700 B.C. was found in Peru. Some popcorn has been found in early 1900s to be a purple color.[1][2] The legend that the English who came to America in the 16th and 17th centuries learned about popcorn
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Hypothesis C: If you drop water and corn oil on brown litmus paper‚ then the water will semi-transparent and the corn oil will not because the corn oil is a thicker substance. Hypothesis D: If you have ethanol in one test tube and water in another‚ and you add oil to each‚ then the oil will be solvent in the ethanol but not in the water. Hypothesis
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Introduction The production of acetone and butanol by means of solvent-producing strains of Clostridium spp. was one of the first large-scale industrial fermentation processes to be developed‚and during the first part of this century it ranked second in importance only to ethanol fermentation. The reason for the almost total demise of this fermentation in the early 1960s was the inability of the fermentation process to compete economically with the chemical synthesis of solvents. However‚ interest
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The sugarcane undergoing fermentation produced a volume of carbon dioxide that was nearly nine times more than the corn‚ wheat grain and wheat stalk. Wheat grain and corn was nearly doubled that of the wheat stalk and the control (Figure 1). Sugarcane was the leading plant material producing the highest volume of carbon dioxide (mean= 19.9 ± 0.996 mL) while other than the control; the wheat stalk produced the lowest volume of carbon dioxide (mean= 1.33 ± 0.036 mL). As time elapsed‚ the sugarcane
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other sources of glycogen? Of starch? a. Other sources of glycogen- Aside from the liver‚ it can also be found in skeletal muscles (for energy during strenuous exercise). It also occurs in tissues including adipose tissues‚ heart muscles‚ kidneys and the brain. It is also found in yeast‚ bacteria‚ fungi‚ molds and algae‚ oysters‚ and shellfish. b. Other sources of starch- Foods that are high in starch include breads‚ grains‚ cereals‚ pasta‚ rice‚ potatoes‚ peas‚ corn and beans – in other words
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Mrs. Feeney Biology 9 October 16‚ 2012 Identifying Organic Compounds Objective: To use indicators to test for the presence of organic compounds in certain substances. Theory: Major types of organic compounds in some common foods are Lipids‚ Carbohydrates‚ and Proteins. An indicator is a chemical compound that changes color and structure when exposed to certain conditions and is therefore useful for chemical tests. The purpose of using distilled water as one of the substances in the test
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alimentary canal with mucus‚ thus the pill takes more time to pass though the alimentary canal. The partially permeable membrane allows water into the pill and dissolve the drug. Hence‚ the dissolved drug will diffuse out of the pill. 1‚3 2‚ 4‚ 5 Bile emulsifies fats. It causes fats droplets to breakdown into fat molecules‚ increasing the surface area to volume ratio‚ hence increasing the speed of digestion of fats. Amylase digested the starch in the visking tubing to form maltose
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Compare the tempering step for corn dry milling with wheat flour milling. Discuss The differences or similarities in moisture added and time needed Corn Dry Milling tempering has higher moisture content and takes less than equal 2 hours to process. Proper tempering: Initial Moisture Moisture Added Time Period Wheat Flour Mill Tempering lasts from 5 hours to 24 hours. Moisture content between 15-17.5%. Bran does provide barrier to water (contrast to corn). The outer layers of endosperm
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test the presence of reducing sugars which is glucose in the Benedict’s test. 2) To test the presence of non-reducing sugars which is sucrose by using Hydrolysis then Benedict’s test. 3) To test the presence of the starch by using iodine test. 4) To test the presence of lipids in corn oils when using the Sudan Ш and Emulsion tests. 5) To test the presence of proteins in an egg albumen in the Biuret’s test. 6) To test the presence of Vitamin C and ascorbic acid in the DCPIP test. Results:
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Borer Scirpophaga incertulas 6. White-Backed Planthopper Sogatella furcifera 7. Brown Plant Hopper Nilaparvata lugens 8. Ant Selonopsis geminate 9. Green leaf hopper Nephotettix cincticeps‚ N. Malayanus‚ N. nigropictus N. virescens 10. Rice Black Bug Scotinophara coarctata 11. Rice Weevil Sitophilus oryzae 12. Golden Apple Snail Pomacea canaliculata 13. Field Cricket Euscyrtus concinnus 14.Cutworm Spodoptera litura 15.Green Semilooper Naranga aenescens 16. Greenhorned caterpillar Melanitis leda
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