Abstract：
:This study quantified free and bound phytochemicals and their antioxidant activity in the endosperm and bran/embryo of different indica rice varieties. Phytochemicals mainly existed as free form in the bran/embryo and as both free and bound forms in the endosperm. The average values of total phenolic content, flavonoid content, FRAP, ABTS and ORAC values in the bran/embryo were 3.1, 10.4, 8.2, 11.2 and 11.4 times higher than those in the endosperm, respectively. In whole brown rice, the bran contributed 59.2%, 53.7%, 47.7%, 55.5% and 56.9% of total phenolics, flavonoids, FRAP, ABTS and ORAC values, respectively. Seven individual phenolics (gallic, protocatechuic, chlorogenic, caffeic, syringic, coumaric and ferulic acids) were detected with most coumaric and ferulic acids in the bran. All measurements exhibited varietal differences. These findings provide important information for improving human health by encouraging the consumption of whole brown rice and its use in food product development.
journal_name
Food Chemjournal_title
Food chemistryauthors
Ti H,Li Q,Zhang R,Zhang M,Deng Y,Wei Z,Chi J,Zhang Ydoi
10.1016/j.foodchem.2014.03.029subject
Has Abstractpub_date
2014-09-15 00:00:00pages
166-74eissn
0308-8146issn
1873-7072pii
S0308-8146(14)00420-8journal_volume
159pub_type
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