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Common sugar tests, like Somogyi or Benedict test, focus in a simple reaction, the reduction of a part of the sugar skeleton. Simple sugars, like glucose, have an alpha-avaliable conformation, which lets Somogyi or Benedict reactives interact with the molecule and change it chemically.
Some sugar foods have a tasy sugary flavor but lack real sugars. Scientists found molecules that taste sugary, but don't have the chemical structure and properties of real sugar (saccharoses).
Otherwise, some real sugars, lack this reactive site, because it may be bounded with another molecule and isn't free to react with the test reactives.
What else can I help you with?
Do eggs test positive in benedicts test?
Yes, eggs can test positive in the Benedict's test because they contain glucose, which is a reducing sugar that reacts with the reagent in the test to form a colored precipitate.
How do you test for sugar in foods?
One common method to test for sugar in foods is using a glucose meter, which can provide a quantitative measure of sugar content. Another method is using a chemical test, such as the Benedict's test, which involves adding a reagent that changes color in the presence of reducing sugars like glucose. Additionally, specific laboratory tests can be conducted to measure sugar content in a more detailed and accurate manner.
Why does glycoproteins reacts positively with Molisch reagent?
Glycoproteins give positive results for Molisch's test. This answer is true because Molisch test was a test for sugar.
Is staphylococcus aureus triple sugar iron test positive?
No, Staphylococcus aureus typically produces negative results on the triple sugar iron test as it cannot ferment the sugars present in the medium.
Is it possible for certain foods to test positive for more than one organic compounds?
Al foods contain several types of organic molecules except for foods that are essentially chemicals. These would include sugar (glucose, maltose, dextrose etc) and pure ethyl alcohol. Even these would contain trace amounts of other organic molecules as contaminants.
Will sugar alcohol test positive for alcohol on a drug screen test?
No
What foods would test positive for carbohydrates?
Bread, pasta, and cereal would certainly "test positive" for carbohydrates.
Do eggs test positive in benedicts test?
Yes, eggs can test positive in the Benedict's test because they contain glucose, which is a reducing sugar that reacts with the reagent in the test to form a colored precipitate.
How do you test for sugar in foods?
One common method to test for sugar in foods is using a glucose meter, which can provide a quantitative measure of sugar content. Another method is using a chemical test, such as the Benedict's test, which involves adding a reagent that changes color in the presence of reducing sugars like glucose. Additionally, specific laboratory tests can be conducted to measure sugar content in a more detailed and accurate manner.
After hydrolysis did sucrose give a positive test with fehlings test why orwhy not?
Sucrose would not give a positive test with Fehling's reagent after hydrolysis because sucrose is a non-reducing sugar. During hydrolysis, sucrose is broken down into its monosaccharide components (glucose and fructose), which are reducing sugars and can react with Fehling's reagent to give a positive test for reducing sugars.
What foods will test positive for opiates?
Certain foods can test positive for opiates due to the presence of compounds similar to those found in opiate drugs. For example, poppy seeds, commonly used in baked goods and some dishes, contain trace amounts of morphine and codeine, which can lead to a positive drug test. Other foods, such as certain types of herbal teas made from poppy plants, may also result in similar test outcomes. It's important to be cautious with these foods if you're subject to drug testing.
Which foods would have the following nutrient test results?
C- candy, table sugar, sugarless gum
Why does glycoproteins reacts positively with Molisch reagent?
Glycoproteins give positive results for Molisch's test. This answer is true because Molisch test was a test for sugar.
Can eating certain foods help with depression?
Foods like fish, fruits, veggies, water, and fiber rich foods can enhance positive moods. Other foods like alcohol, sugar, and caffeine can have a negative effect on moods.
What is a Positive test for a reducing sugar results?
it will change from light blue to green to the orange and then to cherry red.
What is a positive result for the fehlings test?
A positive result for the Fehling's test indicates the presence of a reducing sugar such as glucose or fructose in the solution. This is shown by the formation of a brick-red precipitate when the Fehling's reagent is added and heated with the sugar solution.
Is staphylococcus aureus triple sugar iron test positive?
No, Staphylococcus aureus typically produces negative results on the triple sugar iron test as it cannot ferment the sugars present in the medium.
