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首页> 外文期刊>Journal of food quality >Effect of Different Commercial Fertilizers, Harvest Date, and Storage Time on Two Organically Grown Blackberry Cultivars: Physicochemical Properties, Antioxidant Properties, and Sugar Profiles
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Effect of Different Commercial Fertilizers, Harvest Date, and Storage Time on Two Organically Grown Blackberry Cultivars: Physicochemical Properties, Antioxidant Properties, and Sugar Profiles

机译：不同商业化肥，收获日期和贮藏时间对两种有机种植的黑莓品种的影响：物理化学性质，抗氧化性能和糖谱

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Despite increased consumer interest in organic produce, little is known about how different organic production methods affect both the traditional measures of quality and the naturally occurring health promoting (bioactive) compounds of food. In this study, “Obsidian” and “Triple Crown” blackberries (both Rubus hybrids) were cultivated organically and fertilized with either soy meal, fish emulsion/hydrolysate blend, or processed poultry litter fertilizers at a fixed rate. Fruits were hand-harvested three times during their peak production period and stored at 4°C and 85% RH for up to 12?d. Fertilizer effects on the physicochemical properties were minor, while harvest period had a stronger effect, though that trend varied by year. Antioxidant and sugar profile data revealed an interesting pattern: “Obsidian” had ORAC and lower sugar than “Triple Crown” at harvest and also had greater differentiation due to fertilizer treatments. Fertilizer effects differed based on harvest date and cultivar, with late harvest fruit fertilized with fish emulsion fertilizer showing higher TPC and ORAC than other fertilizer treatments, while the early and middle harvest fruit showed similar or greater responses to soy meal-based fertilizer. Time of harvest and length of storage also affected the antioxidant properties and sugar profiles in different ways depending on fruit cultivar, again with the “Obsidian” fruit showing greater variability in general. This study demonstrated that the two cultivars of organically grown blackberry fruit have different physicochemical and antioxidant properties, thus potentially different shelf lives in the fresh market.
机译：尽管对有机产品的消费者兴趣增加，但对于不同的有机生产方法如何影响传统的质量措施和天然存在的健康促进（生物活性）食品化合物。在这项研究中，“黑曜石”和“三冠”黑莓（葡萄族杂种）有机培养，用大豆膳食，鱼乳液/水解混合物，或以固定速度加工家禽凋落物肥料。在峰值生产期间，果实三次手工收获，并在4℃和85％RH下储存，最多12℃。肥料对物理化学特性的影响是轻微的，而收获期具有更强的效果，尽管这一趋势变化了一年。抗氧化剂和糖简介数据显示出一个有趣的模式：“黑曜石”的奥克克和较低的糖比收获的“三冠”，也具有更大的分化，由于肥料处理也具有更大的分化。肥料效应基于收获日期和品种不同，随着鱼乳液肥料的后期收获水果，显示出比其他肥料治疗更高的TPC和ORAC，而早期和中继水果对大豆膳食肥料相似或更大的反应。收获时间和储存长度也以不同的方式影响抗氧化性能和糖曲线，这取决于水果品种，再次与“黑曜石”水果一般表示更大的变化。本研究表明，两种有机生长的黑莓果实具有不同的物理化学和抗氧化特性，因此可能在新鲜市场中居住不同的架子。

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