摘要
研究不同地区(湖南、四川、贵州、浙江)6个猕猴桃品种(金艳、金桃、徐香、翠玉、红阳、东红)果实矿质元素含量和香气成分差异.结果表明:猕猴桃果实8种矿质元素中K、Ca、Mg、P含量较高,Fe、Al、Zn、Mn含量较低;平均矿质元素含量由高到低依次为K＞Ca＞Mg＞P＞Fe＞Al＞Mn＞Zn;湖南地区的绿肉品种徐香和翠玉果实Ca、Mg、P含量均高于其他3个地区,而浙江地区的徐香和翠玉果实K、Fe、Al含量均高于其他3个地区;4个地区的翠玉果实Mg、P、Zn含量均明显高于其他5个品种.相关性分析结果表明,Ca含量与Mg、Zn、P含量均存在极显著正相关,Mg含量与Zn、P含量均存在极显著正相关,Fe含量与Zn含量存在显著正相关,Al含量与Mn含量存在显著正相关,Zn含量与P含量存在极显著正相关.4个地区6个猕猴桃品种果实中共检测出29种挥发性物质,其中醛类物质12种、酯类物质7种、醇类物质6种、其他类物质4种,有7种挥发性物质为共有成分,分别为(E)-2-六烯醛、乙醛、戊醛、己醛、(E)-壬烯醛、乙酸乙酯、正己醇,醛类物质含量高于其他种类,其中(E)-2-六烯醛含量最高.
Abstract
The differences in mineral element content and aroma composition in the fruits of 6 kiwifruit varieties('Jinyan','Jintao','Xuxiang','Cuiyu','Hongyang','Donghong')grown in different regions(Hunan,Sichuan,Guizhou,Zhejiang)were studied.The results showed that among the 8 mineral elements in kiwifruit,K,Ca,Mg and P content were relatively high,while Fe,Al,Zn and Mn content were relatively low;the average mineral element content is in the order of K＞Ca＞Mg＞P＞Fe＞Al＞Mn＞Zn;the Ca,Mg and P content of the green meat varieties'Xuxiang'and'Cuiyu'fruits in Hunan region were higher than those in the other three regions,while the K,Fe and Al content of'Xuxiang'and'Cuiyu'fruits in Zhejiang region were higher than those in the other three regions;the Mg,P and Zn content in the'Cuiyu'fruit of four regions were significantly higher than those of the other five varieties.The correlation analysis results indicated that there is a highly significant positive correlation between Ca content and Mg,Zn and P content;there is a highly significant positive correlation between Mg content and Zn,P content;there is a significant positive correlation between Fe content and Zn content;there is a significant positive correlation between Al content and Mn content;there is a highly significant positive correlation between Zn content and P content.A total of 29 volatile substances were detected in the fruits of 6 kiwifruit varieties in four regions,including 12 aldehydes,7 esters,6 alcohols and 4 other substances.Among them,7 volatile substances were common components,namely(E)-2-hexenal,acetaldehyde,pentanal,hexanal,(E)-nonenal,ethyl acetate,and n-hexanol.The content of aldehydes was higher than that of other types,with(E)-2-hexenal having the highest content.
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