rebaudioside A + UDP + H(+) => stevioside + UDP-alpha-D-glucose
rebaudioside a + udp + h(+) => stevioside + udp-alpha-d-glucose
rebaudioside A + UDP + H(+) => stevioside + UDP-alpha-D-glucose
rebaudioside a + udp + h(+) => stevioside + udp-alpha-d-glucose