Fruit position within the canopy affects kernel lipid composition of hazelnuts
Fruit position within the canopy affects kernel lipid composition of hazelnuts
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DOI：
10.1002/jsfa.8348
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发表时间：
2017-11-01
影响因子：
4.1
通讯作者：
Basile, Boris
中科院分区：
文献类型：
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作者：
Pannico, Antonio;Cirillo, Chiara;Basile, Boris
背景本研究的目的是研究榛子树冠层内仁组成的变异性。结果仁的鲜重和干重随着果实离地高度的增加而线性增加。从冠层的底层到顶层，脂肪含量减少，而蛋白质和灰分含量增加。从树冠底部到顶部，脂肪酸不饱和度水平逐渐降低。因此，从营养角度来看，位于树冠底层的玉米粒似乎更有趣，但它们的脂质可能更容易氧化。不同植物甾醇的含量从冠层底部到顶部逐渐增加。结论这些效应大部分与冠层内的光分布模式相关。这项研究的结果表明，果实在树冠内的位置是决定榛子仁生长和成分的重要因素。 (c) 2017年化学工业学会
BACKGROUNDThe aim of this research was to study the variability in kernel composition within the canopy of hazelnut trees.RESULTSKernel fresh and dry weight increased linearly with fruit height above the ground. Fat content decreased, while protein and ash content increased, from the bottom to the top layers of the canopy. The level of unsaturation of fatty acids decreased from the bottom to the top of the canopy. Thus, the kernels located in the bottom layers of the canopy appear to be more interesting from a nutritional point of view, but their lipids may be more exposed to oxidation. The content of different phytosterols increased progressively from bottom to top canopy layers.CONCLUSIONMost of these effects correlated with the pattern in light distribution inside the canopy. The results of this study indicate that fruit position within the canopy is an important factor in determining hazelnut kernel growth and composition. (c) 2017 Society of Chemical Industry