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Kaempferol

 

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Kaempferol



 
 
Kaempferol is a natural flavonoid
Flavonoid

The term flavonoid refers to a class of plant secondary metabolites. According to the IUPAC nomenclature, they can be classified into:*flavonoids, derived from 2-phenylchromone structure...
 that has been isolated from tea
Tea

Tea refers to the agricultural products of the leaves, leaf buds, and internodes of the Camellia sinensis plant, prepared and cured by various methods....
, broccoli
Broccoli

Broccoli is a plant of the cabbage family Brassicaceae .It is classified as the Italica cultivar group of the species Brassica oleracea. Broccoli possesses abundant arboreal, luscious, fleshy, flower heads, usually green in color, arranged in a tree-like fashion on branches sprouting from a thick, edible, sturdy, meaty stalk....
, Delphinium
Delphinium

Delphinium is a genus of about 250 species of annual, biennial or perennial flowering plants in the buttercup family Ranunculaceae, native throughout the Northern Hemisphere and also on the high mountains of tropical Africa....
, Witch-hazel
Witch-hazel

Witch-hazel is a genus of flowering plants in the family Hamamelidaceae, with two species in North America , and one each in Japan and China ....
, grapefruit
Grapefruit

The grapefruit is a subtropics citrus tree grown for its bitter fruit which was originally named the "forbidden fruit" of Barbados.These evergreen trees are usually found at around 5-6 m tall, although they can reach 13-15 m ....
, and other plant sources. Kaempferol is a yellow crystalline solid with a melting point of 276-278 °C. It is slightly soluble in water but soluble in hot ethanol
Ethanol

Ethanol, also called ethyl alcohol, pure alcohol, grain alcohol, or drinking alcohol, is a volatility , flammable, colorless liquid....
 and diethyl ether
Diethyl ether

Diethyl ether, also known as ether and ethoxyethane, is a clear, colorless, and highly flammable liquid with a low boiling point and a characteristic odor....
.

Many glycoside
Glycoside

In chemistry, glycosides are certain molecules in which a sugar part is bound to some other part. Glycosides play numerous important roles in living organisms....
s of kaempferol, such as kaemferitrin and astragalin, have been isolated as natural products from plants. Kaempferol consumption in tea and broccoli has been associated with reduced risk of heart disease.

Kaempferol is what gives the flowers of Acacia decurrens
Acacia decurrens

Acacia decurrens is a perennial tree or shrub native to the Greater Blue Mountains Area, which is a World Heritage Site in the Blue Mountains of New South Wales, Australia....
 and Acacia longifolia
Acacia longifolia

Acacia longifolia is a species of Acacia native to southeastern Australia, from the extreme southeast of Queensland, eastern New South Wales, eastern and southern Victoria, Australia, and southeastern South Australia....
 their color.






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Encyclopedia


Kaempferol is a natural flavonoid
Flavonoid

The term flavonoid refers to a class of plant secondary metabolites. According to the IUPAC nomenclature, they can be classified into:*flavonoids, derived from 2-phenylchromone structure...
 that has been isolated from tea
Tea

Tea refers to the agricultural products of the leaves, leaf buds, and internodes of the Camellia sinensis plant, prepared and cured by various methods....
, broccoli
Broccoli

Broccoli is a plant of the cabbage family Brassicaceae .It is classified as the Italica cultivar group of the species Brassica oleracea. Broccoli possesses abundant arboreal, luscious, fleshy, flower heads, usually green in color, arranged in a tree-like fashion on branches sprouting from a thick, edible, sturdy, meaty stalk....
, Delphinium
Delphinium

Delphinium is a genus of about 250 species of annual, biennial or perennial flowering plants in the buttercup family Ranunculaceae, native throughout the Northern Hemisphere and also on the high mountains of tropical Africa....
, Witch-hazel
Witch-hazel

Witch-hazel is a genus of flowering plants in the family Hamamelidaceae, with two species in North America , and one each in Japan and China ....
, grapefruit
Grapefruit

The grapefruit is a subtropics citrus tree grown for its bitter fruit which was originally named the "forbidden fruit" of Barbados.These evergreen trees are usually found at around 5-6 m tall, although they can reach 13-15 m ....
, and other plant sources. Kaempferol is a yellow crystalline solid with a melting point of 276-278 °C. It is slightly soluble in water but soluble in hot ethanol
Ethanol

Ethanol, also called ethyl alcohol, pure alcohol, grain alcohol, or drinking alcohol, is a volatility , flammable, colorless liquid....
 and diethyl ether
Diethyl ether

Diethyl ether, also known as ether and ethoxyethane, is a clear, colorless, and highly flammable liquid with a low boiling point and a characteristic odor....
.

Many glycoside
Glycoside

In chemistry, glycosides are certain molecules in which a sugar part is bound to some other part. Glycosides play numerous important roles in living organisms....
s of kaempferol, such as kaemferitrin and astragalin, have been isolated as natural products from plants. Kaempferol consumption in tea and broccoli has been associated with reduced risk of heart disease.

Kaempferol is what gives the flowers of Acacia decurrens
Acacia decurrens

Acacia decurrens is a perennial tree or shrub native to the Greater Blue Mountains Area, which is a World Heritage Site in the Blue Mountains of New South Wales, Australia....
 and Acacia longifolia
Acacia longifolia

Acacia longifolia is a species of Acacia native to southeastern Australia, from the extreme southeast of Queensland, eastern New South Wales, eastern and southern Victoria, Australia, and southeastern South Australia....
 their color. The compound has antidepressant properties.

An 8-year study found that three flavonols (kaempferol, quercetin
Quercetin

Quercetin is a plant-derived flavonoid, specifically a flavonol, used as a nutritional supplement.The American Cancer Society says that quercetin "has been promoted as being effective against a wide variety of diseases, including cancer....
, and myricetin
Myricetin

Myricetin is a naturally occurring flavonol, a flavonoid found in many grapes, berries, fruits, vegetables, herbs, as well as other plants. Walnuts are a rich dietary source....
) reduced the risk of pancreatic cancer
Pancreatic cancer

Pancreatic cancer is a cancer of the pancreas. Each year in the United States, about 37,680 individuals are diagnosed with this condition and 34,290 die from the disease each year....
 by 23 percent.

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