Leucodelphinidin is a colorless chemical compound related to

leucoanthocyanidin Leucoanthocyanidin (flavan-3,4-diols) are colorless chemical compounds related to anthocyanidins and anthocyanins. Leucoanthocyanins can be found in '' Anadenanthera peregrina'' and in several species of '' Nepenthes'' including '' N. burbidg ...

s. It can be found in '' Acacia auriculiformis'', in the bark of Karada ('' Cleistanthus collinus'') and in the kino (gum) from ''

Eucalyptus pilularis ''Eucalyptus pilularis'', commonly known as blackbutt, is a species of medium-sized to tall tree that is endemic to eastern Australia. It has rough, finely fibrous greyish bark on the lower half of the trunk, smooth white, grey or cream-coloured ...

''. Other species containing leucodelphinidin include '' Aesculus hippocastanum'' (Horse chestnut, in rind/bark/cortex), ''

Arachis hypogaea The peanut (''Arachis hypogaea''), also known as the groundnut, goober (US), pindar (US) or monkey nut (UK), is a legume crop grown mainly for its edible seeds. It is widely grown in the tropics and subtropics, important to both small and la ...

'' (Earth nut in seeds), ''

Arbutus unedo ''Arbutus unedo'' is an evergreen shrub or small tree in the family Ericaceae, native to the Mediterranean region and western Europe. The tree is well known for its fruits, which bear some resemblance to the strawberry — hence the common na ...

'' (Arbutus, in the leaf), '' Caesalpinia pulcherrima'' (Barbados pride), ''

Ceratonia siliqua The carob ( ; ''Ceratonia siliqua'') is a flowering evergreen tree or shrub in the Caesalpinioideae sub-family of the legume family, Fabaceae. It is widely cultivated for its edible fruit pods, and as an ornamental tree in gardens and lands ...

'' (Carob, in the fruit), ''

Hamamelis virginiana ''Hamamelis virginiana'', known as witch-hazel, common witch-hazel, and American witch-hazel, is a species of flowering shrub native to eastern North America, from Nova Scotia west to Minnesota, and south to central Florida to eastern Texas. Des ...

'' (American witch hazel, in the leaf), ''

Hippophae rhamnoides ''Hippophae rhamnoides'', also known as sea-buckthorn, is a species of flowering plant in the family Elaeagnaceae, native to the cold-temperate regions of Europe and Asia. It is a spiny deciduous shrub. The plant is used in the food and cosmetic ...

'' (Hippophae berry, in the leaf), ''

Humulus lupulus ''Humulus lupulus'', the common hop or hops, is a species of flowering plant in the hemp family Cannabinaceae, native to Europe, western Asia and North America. It is a perennial, herbaceous climbing plant which sends up new shoots in early s ...

'' (bine flower / blossom, in the leaf), '' Musa acuminata × balbisiana'' (Banana, in the fruit), ''

Nelumbo nucifera ''Nelumbo nucifera'', also known as sacred lotus, Laxmi lotus, Indian lotus, or simply lotus, is one of two extant taxon, extant species of aquatic plant in the Family (Biology), family Nelumbonaceae. It is sometimes colloquially called a water ...

'' (lotus, in the leaf), ''

Phyllanthus emblica ''Phyllanthus emblica'', also known as emblic, emblic myrobalan, myrobalan, Indian gooseberry, Malacca tree, or amla, from the Sanskrit आमलकी (āmalakī), is a deciduous tree of the family Phyllanthaceae. Its native range is tropical a ...

'' (Emblic, Indian gooseberry, in the rind/bark/cortex), ''

Quercus alba An oak is a tree or shrub in the genus ''Quercus'' (; Latin "oak tree") of the beech family, Fagaceae. There are approximately 500 extant species of oaks. The common name "oak" also appears in the names of species in related genera, notably ...

'' (White oak, in the rind/bark/cortex), ''

Quercus robur ''Quercus robur'', commonly known as common oak, pedunculate oak, European oak or English oak, is a species of flowering plant in the beech and oak family, Fagaceae. It is a large tree, native to most of Europe west of the Caucasus. It is widel ...

'' (Common oak, in the rind/bark/cortex), '' Rumex hymenosepalus'' (Arizona dock, in the root), ''

Schinus molle ''Schinus molle'' (Peruvian pepper, also known as American pepper, Peruvian peppertree, escobilla, false pepper, rosé pepper, molle del Peru, pepper tree, (Archived bWebCite peppercorn tree, California pepper tree, pirul (in Mexican Spanish si ...

'' (California peppertree, in the leaf) and ''

Vicia faba ''Vicia faba'', commonly known as the broad bean, fava bean, or faba bean, is a species of vetch, a flowering plant in the pea and bean family Fabaceae. It is widely cultivated as a crop for human consumption, and also as a cover crop. Varieti ...

'' (bell-bean, in the seed). A leucodelphinidin derivative isolated from ''

Ficus bengalensis ''Ficus benghalensis'', commonly known as the banyan, banyan fig and Indian banyan, is a tree native to the Indian Subcontinent. Specimens in India are among the largest trees in the world by canopy coverage. It also known as the " strangler fig" ...

'' shows

hypoglycemic Hypoglycemia, also called low blood sugar, is a fall in blood sugar to levels below normal, typically below 70 mg/dL (3.9 mmol/L). Whipple's triad is used to properly identify hypoglycemic episodes. It is defined as blood glucose belo ...

effects.

Metabolism

Dihydroflavonol 4-reductase In enzymology, a dihydrokaempferol 4-reductase () is an enzyme that catalyzes the chemical reaction :cis-3,4-leucopelargonidin + NADP+ \rightleftharpoons (+)-dihydrokaempferol + NADPH + H+ Thus, the two substrates of this enzyme are cis-3,4 ...

(DFR) uses dihydromyricetin ( ampelopsin) NADPH and 2 H⁺ to produce leucodelphinidin and NADP.Les cibles d’amélioration pour la qualité des raisins: L’exemple des flavonoïdes, Nancy Terrier (French)
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References

{{Leucoanthocyanidin Leucoanthocyanidins Resorcinols Pyrogallols