Tailor-made fructan synthesis in plants: A review

► Modification of fructan biosynthesis in chicory showed to have little effect. ► The fructan biosynthesis pathway can be transferred to non-fructan-accumulating plants. ► Tailor-made fructan can be synthesized in originally non-fructan-producing plants. ► The fructan chain length distribution of tailor-made fructan is dependent on FFT. ► High potential crops for tailor-made fructan production are sugar beet, sugarcane and rice.