rebaudioside B + UDP + H(+) => steviolbioside + UDP-alpha-D-glucose
rebaudioside b + udp + h(+) => steviolbioside + udp-alpha-d-glucose
rebaudioside B + UDP + H(+) => steviolbioside + UDP-alpha-D-glucose
rebaudioside b + udp + h(+) => steviolbioside + udp-alpha-d-glucose