中国から導入されたアブラナ科野菜の揮発性イソチオシアナート

概要

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Volatile isothiocyanates obtained from the edible parts of four varieties of cruciferous vegetables introduced from China were investigated by GC and GC-MS analyses. The relative amounts of volatile isothiocyanates were compared with amounts obtained by similar procedures from edible parts of three Japanese cruciferous vegetables. In three Chinese crucifers, namely, Saishin (Brassica campestris L. var. parachinensis), Pakchoi (B. campestris L. var. chinensis), and Kotaisai (B. campestris L. var. campestris), a relatively high concentration of 4-pentenyl isothiocyanate was found, whereas two Japanese varieties, Chisuzikyo-mizuna and Mibuna (both B. campestris L. var. Japonica) had relatively large amounts of 3-butenyl isothiocyanate. Kairan (B. oleracea L. var. albaglabra), a variety of Chinese kale, had relatively high concentrations of 3-butenyl and allyl isothio-cyanates. Yukizirotaina, a Japanese cruciferous vegetable which is considered to come of the Pakchoi strain, contained relatively large amounts of 3-butenyl and 4-pentenyl isothiocyanates. 2-Phene-thyl cyanide was also identified in all volatile samples examined. 3-Butenyl and 4-pentenyl cyanides were not separated by the GC and GC-MS procedures used in the present study.
社団法人日本農芸化学会の論文