●蔗糖 HoO CHOH choH CHOH OHOH2C%0、OH OH HO/ OH HOX5 HO OH OF 3 CH,OH OH OH OH 46 CHOH αD-吡喃葡萄糖βD呋喃果糖 [a12 CH,OH OH 6 CHOH 3 HO O 0H O OH CH2OH 蔗糖蔗糖 HO a-D-吡喃葡萄糖 b-D-呋喃果糖 OH OH HO CH2OH O OH H2O OH OH OH CH2OH O O + 蔗糖 HO OH CH2OH HOH2 C O OH [a1,b2] 1 2 4 3 5 6 OH CH2OH O CH2OH 1 2 3 4 5 6 OH OH OH CH2OH O O HO OH CH2OH O CH2OH 1 2 3 4 5 6 a-D-吡喃葡萄糖 b-D-呋喃果糖