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Leucodelphinidin
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Leucodelphinidin is a colorless chemical compound related to leucoanthocyanidins. It can be found in ''Acacia auriculiformis'',〔(A new flavan-3,4-diol from Acacia auriculiformis by paper ionophoresis, S. E. Drewes and D. G. Roux, 1966 )〕 in the bark of Karada (''Cleistanthus collinus'') and in the kino (gum) from ''Eucalyptus pilularis''.〔(A study of leucoanthocyanidins of plants—I : Isomers of leucodelphinidin from karada bark and eucalyptus gum, A. K. Ganguly, T. R. Seshadri and P. Subramanian )〕
Other species containing leucodelphinidin include ''Aesculus hippocastanum'' (Horse chestnut, in rind/bark/cortex), ''Arachis hypogaea'' (Earth nut in seeds), ''Arbutus unedo'' (Arbutus, in the leaf), ''Caesalpinia pulcherrima'' (Barbados pride), ''Ceratonia siliqua'' (Carob, in the fruit), ''Hamamelis virginiana'' (American witch hazel, in the leaf), ''Hippophae rhamnoides'' (Hippophae berry, in the leaf), ''Humulus lupulus'' (bine flower / blossom, in the leaf), ''Musa acuminata × balbisiana'' (Banana, in the fruit), ''Nelumbo nucifera'' (Baladi bean, in the leaf), ''Phyllanthus emblica'' (Emblic, Indian gooseberry, in the rind/bark/cortex), ''Quercus alba'' (White oak, in the rind/bark/cortex), ''Quercus robur'' (Common oak, in the rind/bark/cortex), ''Rumex hymenosepalus'' (Arizona dock, in the root), ''Schinus molle'' (California peppertree, in the leaf) and ''Vicia faba'' (bell-bean, in the seed).〔(Leucodelphinidin on liberherbarum.com )〕
A leucodelphinidin derivative isolated from ''Ficus bengalensis'' shows hypoglycemic effects.〔(Hypoglycemic effects of leucodelphinidin derivative isolated from Ficus bengalensis (Linn). B S Geetha, B C Mathew, K T Augusti, 1994 )〕
== Metabolism ==
Dihydroflavonol 4-reductase (DFR) uses dihydromyricetin (ampelopsin) NADPH and 2 H+ to produce leucodelphinidin and NADP.〔(leucodelphinidin biosynthesis pathway proposed on biocyc.org )〕〔(Les cibles d’amélioration pour la qualité des raisins: L’exemple des flavonoïdes, Nancy Terrier (French) )〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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