首页> 外文会议>Annual Meeting of the Florida State Horticultural Society >ETHANOL CONTENT OF 'MURCOTT' TANGERINES HARVESTED AT DIFFERENT TIMES AND TREATED WITH COATINGS OF DIFFERENT O_2 PERMEABILITY
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ETHANOL CONTENT OF 'MURCOTT' TANGERINES HARVESTED AT DIFFERENT TIMES AND TREATED WITH COATINGS OF DIFFERENT O_2 PERMEABILITY

机译:'Murcott'橘子的乙醇含量在不同时间收获并用不同O_2渗透率的涂层处理

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'Murcott' tangerines (Citrus reticulata Blanco) harvested from January through April were treated with coatings having measured values of O_2 permeability, and the coated fruit were stored 7 days at 21 °C. The ethanol content of non-coated fruit increased slightly as the season progressed (about 20 ppm/week). The CO_2 respiration rate of non-coated tangerines was independent of harvest date. The mean ethanol content of juice from non-coated fruit was 320 ppm. The mean ethanol content was 800 ppm forfruit with polyethylene coatings of high O_2 permeability (50,000-200,000 ml mil m~(-2) d~(-1) atm~(-1)). It was about 1300 ppm for carnauba wax coatings having medium permeability (4,500 - 6,000 ml mil m~(-2) d~(-1) atm~(-1)), and about 1900 ppm for high- gloss, shellac-resin coatings with low O_2 permeability (400 - 700 ml mil m~(-2) d~(-1) atm~(-1)). The ethanol content was <1500 ppm for only 23% of experiments with low permeability coatings, but was always lower than that for fruit with high permeability coatings.
机译:'穆尔科特'橘子(柑橘类橘子蜜)从1月至4月收获的涂层处理,用测量的O_2渗透率值,涂覆的果实在21℃下储存7天。非涂层果实的乙醇含量随着季节进展而略有增加(约20ppm /周)。非涂层橘子的CO_2呼吸率与收获日期无关。来自非涂层果实的果汁的平均乙醇含量为320ppm。平均乙醇含量为800ppm,具有高O_2渗透率的聚乙烯涂层(50,000-200,000mL MIL M〜(-2)D〜(-1)ATM〜(-1))。对于具有中型渗透率的Carnauba蜡涂层约为1300ppm(4,500-6,000mL mil m〜(-2)d〜(-1)atm〜(-1)),以及约1900ppm的高光泽,虫胶树脂涂层具有低O_2渗透率(400-700mL MIL M〜(-2)D〜(-1)ATM〜(-1))。乙醇含量为1500ppm,仅为23%的实验,低渗透涂层,但总是低于具有高渗透涂层的果实的实验。

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