9,9'-di-cis-zeta-carotene desaturation to 7,9,7',9'-tetra-cis-lycopene
9,9'-di-cis-zeta-carotene desaturation to 7,9,7',9'-tetra-cis-lycopene
9,9'-di-cis-zeta-carotene desaturation to 7,9,7',9'-tetra-cis-lycopene
9,9'-di-cis-zeta-carotene desaturation to 7,9,7',9'-tetra-cis-lycopene