Determination of the tensile strength of starch bioplastic cast-film reinforced with Pineapple peel 1Caburnay‚ Frances Dianne R.‚ 1Contreras‚ Jonathan S.‚ 1D ulnuan‚ Gwen Kristin C 2Asst. Professor Catherine D. Sanchez 1Bachelor of Science in Food Technology 2Chemical Engineer ABSTRACT Natural fibers have become new alternative materials that can replace petroleum-based plastic‚ either alone or combined with another material‚ to produce greener composite materials. One of the most important
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Ruminant Digestive System By Susan Schoenian sheep101.info |Why are sheep always chewing? | |Sheep belong to the ruminant classification of animals. Ruminants are characterized by their "four" stomachs and "cud-chewing" behavior. The cud is a food bolus | |that has been regurgitated.
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experiment to test for glucose with the Benedict reagent sugar should be positive for glucose. Starch mixed with the Benedict reagent is probably positive for glucose because it is a polysaccharide. Onion juice mixed with Benedict reagent is probably positive for glucose because it is a fructose. Distilled water with Benedict reagent should be negative for glucose. The third experiment to test for starch using with and without the IKI reagent by looking under a microscope a slice of potato cells
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Part C Digestion is the procedure of breaking down food into smaller parts. Most of the food humans consume should be digested into more basic parts‚ in order for it to be absorbed into the body and used within the body. Additionally‚ nutrients are the most important substances that allow the body to perform daily activities. Furthermore‚ carbohydrates‚ fats and proteins are the chief nutrients that the human body needs‚ in order to grow‚ repair‚ move‚ and maintain homeostasis. These nutrients
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CHAPTER ONE 1.0 INTRODUCTION Starch is one of the most abundant substances in nature‚ a renewable and almost unlimited resource. Starch is produced from grain or root crops. It is mainly used as food‚ but is also readily converted chemically‚ physically and biologically into many useful products to date; starch is used to produce such diverse products as food‚ paper‚ textiles‚ adhesives‚ beverages; confectioning‚ pharmaceuticals‚ and building materials. Cassava starch has many remarkable characteristics
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Introduction Starch is composed of α-amylose and amylopectin. The structure of α-amylose consists of long polymer chains of glucose units connected by an α (1-4) linkage. Amylopectin consists mainly of α (1-4) linked glucose residues but is a branched molecule with α (1-6) branch points every 24 to 30 glucose residues on average. As a result of the bond angles in the α (1-4) linkage‚ amylose actually forms a spiral much like a coiled spring. Amylose is responsible for the formation of a deep blue
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produced that helps the food become a paste. Here‚ the amylase enzymes turn the starch molecules (from the bread) into maltose – which is used by cells to give us energy. The bolus (lumps of food) squeezes past the epiglottis then down the oesophagus which connects the throat to the stomach. The bolus then enters the stomach where gastric juices are produced by the walls of the stomach. The protease‚ pepsin‚ starts the digestion of proteins to smaller molecules called polypeptides. Hydrochloric acids
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conditions affect a plants starch levels. Hypotheses: 1. If the plant that is in absence of CO2 and is kept in a closed environment‚ then it will have a starch level of 1 because the plant is missing CO2‚ which it needs to complete the photosynthesis process. 2. If the plant is in a closed environment‚ then the plant will have a starch level of 3 because it has all the environmental conditions it needs. 3. If the plant is kept in a dark environment‚ then it will have a starch level of 1 because it’s
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The Effect of Temperature on Animal and Fungal Amylase’s Ability to Breakdown Starch. Abstract This experiment was designed to test the reaction of the enzyme amylase at various temperatures. There were two different kinds of amylase being tested‚ one was fungal amylase also known as aspergillus oryzae and human amylase. The changes in temperature effect the rate at which an enzyme and a substrate collide. When the temperature is too high the active site changes shape or denatures‚ once this
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to gelatin‚ then it will turn. If Benedict solution is added to butter‚ then it will turn. If iodine is added to starch‚ then it will turn. If Benedict color is added to apple juice‚ then it will turn. If any organic substance is tested with distilled water‚ then nothing will happen. Materials: -12 test tubes -Test
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