How to Test Yogurt for Starch With Iodine



A complex interconnected series of sugar molecules (saccharides) comprise starch molecules. To test for the presence of these polysaccharides (many sugar) structured starches you will need iodine. Often used as a science experiment, the iodine acts as an indicator, changing color when it combines with starches. Use this technique for yogurt, or any other substance in which you wish to find starches. A color change occurs from the complex network of starches trapping the iodine molecules, revealing a blue-black color. The iodine will not change color in reaction to simple sugars, such as sucrose or fructose, because these do not retain iodine between the sugar molecules the way starches do.Di

View Replies

Related to : How to Test Yogurt for Starch With Iodine


How to Fix Iodine With Starch
Category : Hobbies, Games & Toys
Fingerprints help solve crimes and missing persons cases every day. Some of these cases may be years old, but modern technology allows investigators to lift and fix even old prints using iodine and starch. The iodine sticks to the latent oils from the print and the starch mixes with the iodine and m

View Replies


How to Search for the Presence of Starch in Yogurt
Category : Hobbies, Games & Toys
Starch is a carbohydrate that is comprised of a large number of glucose units. Starch can be a dietary concern for diabetics or those watching their weight as it can be easily digested and then, raise blood sugar levels quickly. To test for the presence of starch in yogurt, you will need to use iodi

View Replies


How to Make a Topping With Yogurt Chips & Potato Starch
Category : Food & Drink
Yogurt chips, while they might sound healthy, aren't. They're loaded with high-fructose corn syrup and often have added chocolate. However, they are a fun alternative to the everyday snack. Potato starch, on the other hand, is a staple in the gluten-free community, used to thicken sauces, replace fl

View Replies


What Does Lugol's Iodine Test for?
Category : Health
In 1829, French physician Jean Guillaume Auguste Lugol created a solution of potassium iodide and elemental iodine in distilled water. Called Lugol's iodine, the solution has been used as a disinfectant, antiseptic and to disinfect drinking water during an emergency.
Over time, it has been disc

View Replies


How to Test for an Allergy to Iodine
Category : Health
The most common allergic reaction associated with iodine is actually caused by muscle protein in shellfish. An allergic reaction to shellfish can be serious, but a fairly simple test administered by a medical professional can diagnose this allergy and help you avoid exposure. Here's what to do if yo

View Replies


How to Test for Iodine in the Soil
Category : Home & Garden
When testing your soil for iodine, the same procedure is followed as for any other soil test. The sample must be taken from a wide range of areas, and you must maintain the integrity of the sample by using properly cleaned, un-galvanized stainless steel tools and clean buckets for mixing. Iodine is

View Replies

TAGS: Test Iodine Soil

How to Test for Iodine Number in Stearic Acid
Category : Education
The iodine value is a measure of the unsaturation of fatty acids and is expressed in terms of the number of centigrams of iodine absorbed per gram of sample (percent iodine absorbed). Iodine number test is applicable to all normal fatter acids. Stearic acid belongs to this class of fatty acids. Read

View Replies


How to Make Iodine Crystals From Seven Percent Liquid Iodine
Category : Hobbies, Games & Toys
Buying iodine crystals in the United States is now regulated by the federal government, according to the National Drug Intelligence Center. This is part of an effort to curb the use of iodine crystals to manufacture methamphetamine. However, this has created a problem for those who participate in wh

View Replies


How to Test Foods for Starch
Category : Health
Foods may contain protein, fat, sugar or starch. Both sugar and starch are classified as carbohydrates (a line of carbon atoms with hydrogen atoms stuck to them) but starch molecules are much longer than sugar molecules. You can test for the presence of starch molecules in foods by using iodine as a

View Replies

TAGS: Test Foods Starch

How to Separate Iodine From Solutions of Iodine in Alcohol
Category : Hobbies, Games & Toys
Iodine is an element in the halogen group. Outside of organic chemistry, it is commonly used as a disinfectant in an alcohol solution. It reacts with bacteria in a manner similar to bleach, except it is not as damaging to the human body and will sterilize a surface or wound for a considerably longe

View Replies


2012 / 2017 Copyrights BigHow , All Rights Reserved .