Quercetin: Perbedaan antara revisi
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'''Quercetin'''
== Kemunculan ==
Quercetin adalah [[flavonoid]] yang tersebar luas di alam. Nama quercetin digunakan
Pada bawang merah, konsetrasi quercetin terbesar ada pada cincin paling luar dan di bagian yang paling dekat dengan akar.<ref>{{cite journal | author = Smith C, Lombard KA, Peffley EB, Liu W | title = Genetic Analysis of Quercetin in Onion (''Allium cepa L.'') ''Lady Raider'' | journal = The Texas Journal of Agriculture and Natural Resource | volume = 16 | pages = 24–8 | publisher = Agriculture Consortium of Texas | year = 2003 | url = http://www.tarleton.edu/~txjanr/2003issue/article3.pdf | format = | archiveurl = https://web.archive.org/web/20070225125621/http://www.tarleton.edu/~txjanr/2003issue/article3.pdf | archivedate = 2007-02-25 | deadurl = yes | access-date = 2014-11-24 }}</ref> Menurut satu penelitian, [[tomat]] yang tumbuh secara organik memiliki 79% lebih banyak quercetin daripada yang tumbuh secara kimiawi.<ref name="pmid17590007">{{cite journal | author = Mitchell AE, Hong YJ, Koh E, Barrett DM, Bryant DE, Denison RF, Kaffka S | title = Ten-year comparison of the influence of organic and conventional crop management practices on the content of flavonoids in tomatoes | journal = J. Agric. Food Chem. | volume = 55 | issue = 15 | pages = 6154–9 | date = July 2007 | pmid = 17590007 | doi = 10.1021/jf070344 }}</ref> Quercetin ada pada berbagai jenis [[madu]] dari berbagai jenis tanaman.<ref name="pmid21229237">{{cite journal | author = Petrus K, Schwartz H, Sontag G | title = Analysis of flavonoids in honey by HPLC coupled with coulometric electrode array detection and electrospray ionization mass spectrometry | journal = Anal Bioanal Chem | volume = 400 | issue = 8 | pages = 2555–63 | date = June 2011 | pmid = 21229237 | doi = 10.1007/s00216-010-4614-7 }}</ref>
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