บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Scald control and quality improvement of Granny Smith apples by postharvest treatment with 1-MCP.

Zanella, A.

Rivista di Frutticoltura e di Ortofloricoltura. 2001. 63: p 67-72.

2001

บทคัดย่อ

Scald control and quality improvement of Granny Smith apples by postharvest treatment with 1-MCP.

During 2000-01 in Italy, the effect of postharvest treatment with the novel ethylene inhibitor, 1-methylcyclopropene, was compared with that of storage at different atmospheric conditions and with a postharvest treatment with the antioxidant diphenylamine (DPA) on scald susceptible apples from early, optimal and late harvest. Fruit was treated with 1 mu l 1-MCP at room temperature for 12 h after harvest and stored at 1 deg C, 95% RH, at normal storage conditions (NC, 21% O2 - 0.03% CO2), in controlled atmosphere (CA, 1.5% O2 - 1.3% CO2) and in ultra low oxygen atmosphere (ULO, 1% O2 - 1% CO2) for 4 and 6 months. Treatment with DPA, storage at ULO and treatment with 1-MCP at all storage conditions completely controlled scald. The incidence of core flush decreased at lower O2 after 6 months of storage at different atmosphere conditions, as well as with 1-MCP and DPA. The superficial symptoms resembling those caused by inadequate O2/CO2 ratio in controlled storage were observed on 1-MCP-treated fruit stored in CA and ULO. Fruit treated with 1-MCP maintained higher inner quality in terms of firmness and acidity during storage and after 14 days of shelf life at 20 deg compared with untreated fruit. At NC, the inner quality of 1-MCP-treated fruit reached values of fruit stored at ULO conditions. The total soluble solid content was not influenced by 1-MCP.