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A phenol is a benzene ring with an hydroxl (OH) group attached. A polyphenol is composed of many such phenols strung together.
In terms of everyday life, this description doesn't mean much. A number of fruits and vegetables are being studied based on their polyphenol content, as it's thought that these polyphenols may be responsible for the beneficial effects of these products. Pomegranates and grapes (especially in red wine) are known to be high in polyphenols. Eat your fruits and vegetables.
What else can I help you with?
Why do phenols alter pH?
Phenols have a low acidity.
What is observed when phenols are used in Baeyers test?
Phenols give a positive test.
What compound is known for its inability to dissolve in water?
phenols
Do phenols oxidize?
Yes, phenols can undergo oxidation reactions when exposed to oxygen or other oxidizing agents. This process can lead to the formation of quinones and other oxidized products.
Why does a banana brown faster in the refrigerator than on the counter at room temperature?
It is due to a defense mechanism in the fruit, which is activated when the fruit is cut from the tree. There are three main factors involved in the ripening and browning process, they are: enzymes, oxygen and phenols. Enzymes are protein-like substances that speed up or initiate chemical reactions. Phenols are defensive mechanisms the plant uses to fend off insects and microbes. The specific enzyme is called polyphenol oxidase. When the banana is attacked, the phenols are activated in the presence of oxygen by this enzyme. In this process the brown color is produced as a side effect. The first time the banana is attacked is when it is cut from the tree. Exposure to cold air, certain gases, and physical damage of the fruit will hasten the process. The skin turns brown or black faster in the refrigerator, but the banana meat itself does not ripen that much faster. In fact, it is recommended that ripened bananas be frozen to preserve them even longer. The cold temperature of a refrigerator encourages an enzyme (polyphenyl oxidase), which is naturally found in the banana, to polymerise phenols in the banana skin into polyphenols. Polyphenols are similar to melanin, the pigment responsible for the color in our skin. This is what blackens the skin of the bananas. Despite the color, the cold temperature will keep bananas firmer than a banana that has been left at room temperature for the same amount of time. The enzymes that break the starch into sugar, which makes the banana soft and ripe, work better at room temperature.
Difference between phenols and phenolic compounds?
Phenols are a specific type of organic compound that contain a hydroxyl group (-OH) attached to an aromatic ring, whereas phenolic compounds are a broader class of organic compounds that contain one or more phenol groups. In other words, all phenols are phenolic compounds, but not all phenolic compounds are phenols.
What is the difference between alcohol and phenols?
Alcohol: C6H13OH (hydroxy-hexane) Phenol : C6H5OH (hydroxy-benzene) Phenolic -OH is acidic (4x stronger than vinegar) where s alcoholic -OH isn't acidic at all; both are NOT ionic or alkaline (OH-)
Why do phenols alter pH?
Phenols have a low acidity.
What does Polyphenols do for your body?
Polyphenols are antioxidants found naturally and reverse damage caused by free radicals.
What is observed when phenols are used in Baeyers test?
Phenols give a positive test.
Uses of phenols?
do
If someone wanted to learn about polyphenols should they study astronomy physics or chemistry?
If someone wanted to learn about polyphenols they should study bio-chemistry , because polyphenols are polymers of catechin and epicatechin, belonging of the family of condensed tannins.
Does Canadian bacon contain phenols?
Only if it's smoked - pork is naturally free from phenols, but the smoking process adds them.
How is a positive test for phenols using ferric chloride recognized?
A positive test for phenols using ferric chloride is recognized by the formation of a colored complex. When phenols react with ferric chloride, a deep purple or blue color indicates the presence of phenols. This color change occurs due to the formation of an iron-phenol complex.
What are the types of phenols found in industrial wastewater?
Types of phenols found in industrial wastewater include cresols, pentachlorophenol, bisphenol A, and chlorophenols. These compounds can be toxic to aquatic life and can cause environmental damage if released untreated into water bodies.
Why phenols are unsaturated?
There is a benzene ring.So it is unsaturated.
Are health benefits of grape juice same as wine?
Yes, they are both packed with antioxidants (polyphenols). The only difference is that grape juice contains a lot more sugar, and wine contains alcohol.
