HÓA HỌC THỰC PHẨM - CHƯƠNG 3 - CARBOHYDRATE - TÔN NỮ MINH NGUYỆT
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Tính chaát hoaù hoïc<br />
MONO SACCHARIDE<br />
Phaûn öùng dehydrat hoùa<br />
H<br />
H<br />
OH<br />
C<br />
C<br />
H<br />
C<br />
CH<br />
CHO<br />
OH<br />
OH<br />
H + ññ<br />
-3H 2<br />
O<br />
CHO<br />
O<br />
(Fufural)<br />
OH<br />
H<br />
(Pentose)<br />
H<br />
H<br />
OH<br />
C<br />
C<br />
OH<br />
H<br />
C<br />
C<br />
H<br />
CHO<br />
OH<br />
OH<br />
CH 2<br />
OH<br />
(Hexose)<br />
H + ññ<br />
-3H 2<br />
O<br />
CHO<br />
O (Hydroxy methyl fufural - taùo)<br />
CH 2<br />
OH<br />
SP raát hoaït hoùa, noái ñoâi deã truøng hôïp vôùi caùc chaát khaùc<br />
Taïo muøi thôm cho saûn phaåm khi ôû noàng ñoä nhoû<br />
Cho phaûn öùng maøu vôùi thymol, naphtol – ñònh tính pentose<br />
Fucfurol + anilin + HCl --- hôïp chaát maøu ñoû<br />
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