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元帅系苹果贮藏期间芳香物质的含量变化

DOI: 10.3321/j.issn:1000-7091.1997.01.018, PP. 86-90

Keywords: 元帅系苹果,芳香物质,贮藏,气相色谱

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Abstract:

以元帅系苹果为试材,在小袋气调贮藏、大帐气调贮藏及低温冷藏三种条件下,采用气相色谱法(GC)分析贮藏期间果肉中芳香物质含量变化,结果表明:①低温冷藏时,红星苹果贮藏初期乙醛、乙醇及乙酸乙酯含量低,60天时形成高峰,其后持续下降,呈跃变形。小袋简易气调贮藏时,果肉中乙醇和乙酸乙酯含量低,贮藏后期乙醛含量显着上升。②小袋气调贮藏时,红星苹果乙醛含量低于短枝型品种新红星及首红,而乙酸乙酯含量高于短枝品种。贮藏90天时,红星苹果乙醛含量下降及乙酸乙酯增加更为明显。③小袋气调贮藏时,测出了红星苹果13种4大类芳香物质,其中醇类和酯类物质有明显高峰期,醛类贮藏期持续上升,酮类则无显着差异。小袋简易气调贮藏的芳香物质总量在90天时最高,与果肉固形物测定结果相吻合。大帐气调贮藏则在120天出现芳香物质高峰期。这一滞后现象使红星苹果的贮藏期延长30天左右。

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