บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Delay of fruit softening in forcing-cultured Tonewase Japanese persimmon by packaging in perforated polyethylene bags.

Nakano, R., Harima, S., Kubo, Y. and Inaba, A.

Journal of the Japanese Society for Horticultural Science. Volume 70, Number 3, 2001. Pages 385-392.

2001

บทคัดย่อ

Delay of fruit softening in forcing-cultured 'Tonewase' Japanese persimmon by packaging in perforated polyethylene bags.

Tonewase is an early-maturing persimmon strain selected from Hiratanenashi, an astringent persimmon cultivar. In some districts of Japan, Tonawase has been grown under forcing-culture conditions, which often result in the rapid softening of fruits during postharvest distribution. In this study, we elucidated that this softening is caused by water-stress-induced ethylene that can be suppressed with the reduction of water loss using perforated polyethylene bags (PPB). With or without the removal of astringency by treatment with elevated carbon dioxide (CTSD method), forcing-cultured Tonawase fruits produced significant amounts of ethylene two days after harvest, after which fruits exhibited softening. This softening was markedly suppressed by treating the fruits with 1-methylcyclopropene (MCP), an inhibitor of ethylene action, which suggests the involvement of ethylene in fruit softening. Packaging fruits in PPB, reduced water loss, retarded the commencement of ethylene production and delayed fruit softening. Immature field-grown Hiratanenashi fruits, which also demonstrated ethylene production and softening, showed a similar response to MCP and PPB treatments. Mature fruits under the same storage conditions produced no ethylene and remained firm after harvest.