Melena 1983: sesame seeds, cf. σήσαμον Hipponax, Doric σᾶσαμον "Such a phytonym is not attested in Homer, who instead mentions a town or spot in Paphlagonia bearing the name Σήσαμος (Iliad 2.863)."
Chadwick & Ventris 1973: sesame seed, cf. Doric σάσαμον from Semitic loan-word, cf. Akkadian šamaššammu, Ugaritic ššmn
Chadwick, John and Michael Ventris, 1973 Documents in Mycenaean Greek
Melena, José L., 1983 Minos vol. 18 "Olive Oil and Other Sorts of Oil in the Mycenaean Tablets"