<Tr> <Td> β--D - glucopyranose derivative </Td> </Tr> <Tr> <Td> safranal moiety </Td> </Tr> <Table> <Tr> <Td> β--D - gentiobiose </Td> <Td> crocetin </Td> </Tr> </Table> <Tr> <Td> β--D - gentiobiose </Td> <Td> crocetin </Td> </Tr>

Roots of which plant contains an oxidising agent