未熟豆の冷却貯蔵にともなうビタミンC量の変化に及ぼす莢の影響

概要

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Immature legumes (broad beans, green peas, soybeans and peanuts), which had been purchased commercially, stored with shells at 4℃ retained a higher level vitamin C (VC) content than when stored without shells. Shelled immature legumes which had been obtained immediately after harvesting showed a markedly increased VC content. during the first few days which decreased rapidly when stored at low temperature. With intact shells, the increase in VC content with 3 days of storage was not obvious, but the content was retained at a higher level after 7 days of storage than that without shells. The L-galactonolactone dehydrogenase (EC 1.3.2.3, GLDH) level showed a positive correlation with the VC content retained during storage for 7 days, while the ascorbate oxidase (EC 1.10.3.3, AAO) level showed a negative correlation with the retained VC content. It was also found that the change in the VC content of green peas during storage was positively correlated with GLDH activity.
2000-01-15