Abstract：
:This study investigated the effects of persistent ultraviolet B (UV-B) irradiation on isoflavone accumulation in soybean sprouts. Three malonyl isoflavones were increased by UV-B. Malonylgenistin specifically accumulated upon UV-B exposure, whereas the other isoflavones were significantly increased under both dark conditions and UV-B exposure. The results of isoflavone accumulation to UV-B irradiation time were observed as following: acetyl glycitin rapidly increased and then gradually decreased; malonyl daidzin and malonyl genistin were highly accumulated within an intermediate period; genistein and daidzin were gradually maximized; daidzin, glycitin, genistein, and malonyl glycitin did not increase; and glycitin, acetyl daidzin, and acetyl genistin exhibited trace amounts. Transcriptional analysis of isoflavonoid biosynthetic genes demonstrated that most metabolic genes were highly activated in response to UV-B 24 and UV-B 36 treatments. In particular, it was found that GmCHS6, GmCHS7, and GmCHS8 genes among the eight known genes encoding chalcone synthase were specifically related to UV-B response.
journal_name
Food Chemjournal_title
Food chemistryauthors
Lim YJ,Jeong HY,Gil CS,Kwon SJ,Na JK,Lee C,Eom SHdoi
10.1016/j.foodchem.2019.125376subject
Has Abstractpub_date
2020-01-15 00:00:00pages
125376eissn
0308-8146issn
1873-7072pii
S0308-8146(19)31490-6journal_volume
303pub_type
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