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You could do a dry test first, by taking come of the sample and heating it, if there is charring of the substance along with a caramel odour, it may be a sugar. Fehling's test is a very common wet test for Reducing sugars, which gives Red precipitate on heating.

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What can be used test for carbohydrate?

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What is molisch?

Molisch's Test refers to a chemical test used to test for carbohydrate existence. This is done using carbohydrate dehydration with hydrochloric or sulfuric acid to create aldehydes. These condense a couple phenol molecules to produce purple or red compounds.


Why Molisch's test called group test?

Molisch's test is known as a group test because it can detect the presence of any carbohydrate in a sample, regardless of the specific type of carbohydrate. This test relies on detecting the presence of reducing sugars, which are a common feature of most carbohydrates, making it a broad test for the presence of carbohydrates in general.


Will fructose give a positive benedict's test?

Yes! Fructose is a reducing carbohydrate.


What does a negative Barfoed's test indicate?

A negative Barfoed's test indicates that a carbohydrate is not a reducing sugar, specifically suggesting that the tested sugar is not a monosaccharide. In this test, a red precipitate forms in the presence of reducing sugars when heated with Barfoed's reagent. If no precipitate forms, it implies that the carbohydrate does not have the necessary structure to reduce the copper ions in the reagent, typically ruling out simple sugars. This result helps differentiate between monosaccharides and disaccharides in carbohydrate analysis.


Bichemical tests for identification of lactobacillus acidophilus?

the most commonly used biochemical test to identify lactobacillus is carbohydrate fermentation, this is the preliminary screening test and an essential test for the identification of lactobacilli


What part of the plant would you test for starch?

You would test the leaves of the plant for starch. Starch is produced through photosynthesis in the leaves, so they are the best part of the plant to test for the presence of this carbohydrate.


What does the oral test for carbohydrate intolerance involve?

The carbohydrate being investigated is given by mouth in liquid form and several blood levels are measured and compared to normal values. This helps evaluate the individual's ability to digest the sugar.


What is a positive test for carbohydrates?

These are the carbohydrate tests that would give a positive result on maltose: 1.Molisch test 2. Fehling's Test 3. Benedict's Test 4. Nylander's Test 5. Tollen's Test 6. Seliwanoff's Test 7. Barfoed's Test


That are the reactions in molisch tesr?

Molisch test is a qualitative chemical test used to detect the presence of carbohydrates. The reaction involves the reaction between the carbohydrate and concentrated sulfuric acid, resulting in the formation of a violet or purple color. This color change is due to the dehydration of the carbohydrate and the subsequent formation of furfural compounds.


Will a deoxy ribonucleic acid give a positive molisch test?

No, deoxyribonucleic acid (DNA) will not give a positive Molisch test. The Molisch test is a carbohydrate test that detects the presence of sugars, which are polysaccharides or monosaccharides. Since DNA is a nucleic acid composed of nucleotides, not carbohydrates, it does not react positively in this test.


What culture media can be used to test the carbohydrate fermentation?

To test carbohydrate fermentation, common culture media include phenol red broth and MacConkey agar. Phenol red broth contains a specific carbohydrate, and the color change indicates fermentation. MacConkey agar is selective for Gram-negative bacteria and differentiates lactose fermenters, which produce acid, leading to a color change in the medium. Both media are effective for assessing the fermentation capabilities of various microorganisms.