HÓA HỌC THỰC PHẨM - CHƯƠNG 7 - CHẤT MÀU TP
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MAØU TAÏO THAØNH TRONG QUAÙ TRÌNH CHEÁ BIEÁN<br />
Phaûn öùng oxy hoaù Polyphenol<br />
Cô chaát phenol - chöùa voøng benzen coù 1 hay nhieàu nhoùm OH<br />
OH<br />
OH<br />
HO<br />
CH 2 CH COOH<br />
NH HO<br />
2<br />
[1] Pyrocatechol [2] Dihydroxyphenylalanin<br />
HO<br />
OH<br />
HO<br />
CH 2 CH 2<br />
NH 2<br />
OH<br />
HO<br />
COOH<br />
[3] Dihydroxyphenyl [4] Acid galic