mogroside III + UDP-alpha-D-glucose <=> isomogroside IV + UDP + H(+)
mogroside iii + udp-alpha-d-glucose <=> isomogroside iv + udp + h(+)
mogroside III + UDP-alpha-D-glucose <=> isomogroside IV + UDP + H(+)
mogroside iii + udp-alpha-d-glucose <=> isomogroside iv + udp + h(+)