"Starch digestion" Essays and Research Papers

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    Carb Cutter Lab Report

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    pills are effective at preventing amylase‚ an enzyme that breaks down starch‚ from digesting starch. This then prevents starch from converting into glucose and then to body fat. The carbs that aren’t absorbed then pass through the digestive tract and are excreted. From what we hear‚ the pill sounds like it will do wonders‚ but similar studies believe otherwise; “Studies by Mayo Clinic revealed that to decelerate the digestion of carbohydrate‚ you need between 4‚000 to 6‚000 mg of bean extract or

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    Review Sheet 39b

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    Print Form R E V I E W version 8 S H E E T EXERCISE 39 B NAME ____________________________________ LAB TIME/DATE ________________________ Chemical and Physical Processes of Digestion: Computer Simulation Carbohydrate Digestion The following questions refer to Activity 1: Assessing Starch Digestion by Salivary Amylase. 1. At what pH did you see the highest activity of salivary amylase? 7.0 Why? because that is when the salivary is most effective and it breaks down carbohydrates

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    Carb Cutter

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    pills. Should you? In the United States today many people have supposedly lost weight with certain pills. One of these pills is called carb cutter. Carb Cutter claims to inhibit the activity of the starch-digesting enzyme‚ amylase. When the diet pill binds to the amylase‚ it prevents the breakdown of starch. In the Biology 1103 lab‚ we conducted two experiments to determine whether or not the diet pill‚ Carb Cutter‚ actually worked. In each experiment we used an experiment tube and a control (blank)

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    jackfruit seeds

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    http://doctor.ndtv.com/faq/ndtv/fid/6843/What_are_the_benefits_of_having_jackfruit_seeds.html?cp A.  The seeds would give you around 135 kcal/ 100 gms. It is a rich source of complex carbohydrate‚ dietary fiber‚ vitamins like vitamin A‚ C and certain B vitamins‚ and minerals like calcium‚ zinc‚ and phosphorous. They contain lignans‚ isoflavones‚ saponins‚ that are called phytonutrients and their health benefits are wide-ranging from anti-cancer to antihypertensive‚ anti-ageing‚ antioxidant‚ anti-ulcer

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    drops of starch solution with either fungal or bacterial Amylase exposed to different temperatures were mixed with Iodine. Iodine is a dark blue color in the presence of starch and turns light yellow in its absence. Bacterial Amylase had an optimal temperature of 55°C‚ meaning that starch was broken down the fastest at this temperature. Fungal Amylase showed a slightly lower optimal temperature of 40°C. Bacterial and fungal Amylase at lower temperatures had a slower reaction rate because starch and Amylase

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    Aim What is the effect of Lead ions on the enzyme Amylase. And does it have an inhibitory effect‚ which causes the substrate‚ in this case starch to be blocked from the reaction process in the enzyme catalyst. Also is the effect reversible or irreversible‚ which is put on the amylase. Method Apparatus and substances required Test tube holder 2% starch solution 6 boiling tubes labelled 1 to 6 1% lead nitrate solution 6 test tubes labelled A to E‚ ( F) Dimple tiles 5 test tubes labelled A1

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    found in saliva that acts on starch to begin the digestion process (Stick and Williams‚ 2009). Amylase acts on starch by breaking off maltose (C12H22O11) molecules from the end of starch chains (Di Giuseppe‚ 2002). Every time a bond is broken in a starch chain‚ a water molecule is consumed. This process is referred to as a hydrolysis reaction which requires water to digest a substrate‚ in this case starch (Walsh‚ 2002). Phosphorylase is also an enzyme that acts on starch by removing glucose molecules

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    and glycogen are three carbohydrates that are similar‚ but structurally different. Carbohydrates have the general molecular formula CH2O. Starch and cellulose are the two most common carbohydrates. Both are polymers (hence "polysaccharides"); that is‚ each is built from repeating units‚ monomers‚ much as a chain is built from its links. The monomers of both starch and cellulose are the same: units of the sugar glucose. Carbohydrates are one of the four major classes of organic compounds in living cells

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    important in controlling reaction speed (by initiating and regulating biological activity)‚ cell communication‚ and growth. One particularly significant enzyme is amylase‚ which catalyzes the hydrolysis of alpha glycosidic linkages of amylose‚ starch components‚ and other oligosaccharides (Qian‚ et al.‚ 1994). Porcine pancreatic alpha-amylase can be found in pancreatic secretions‚ and works most efficiently at pH 6.9 for the majority of substrates. This ideal pH‚ however‚ has shown to shift

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    Starch Lab

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    Introduction: In this lab i used glucose and starch to show if the cell membrane is permeable‚ impermeable‚ or selectively permeable to these substances. Dialysis tubing is a plastic like substance that has small pores in it. These pores allow certain chemicals to flow into and out of the cells. The size of the molecule determines what goes through the tubing. On of the materials that we will be using is glucose. glucose is a simple sugar that easily dissolves in water. To test for the presence of

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