D-fructose + UDP-alpha-D-glucose => sucrose + UDP + H(+)
d-fructose + udp-alpha-d-glucose => sucrose + udp + h(+)
D-fructose + UDP-alpha-D-glucose => sucrose + UDP + H(+)
d-fructose + udp-alpha-d-glucose => sucrose + udp + h(+)