单 位：
天津市林业果树研究所;国家农产品保鲜工程技术研究中心
关键词：
‘玫瑰香’葡萄;设施栽培;二次果;品质;芳香化合物
摘 要：
【目的】为了探讨设施‘玫瑰香’葡萄二次果果实品质及芳香化合物组分与露地栽培的差异,【方法】使用固相微萃取技术及气相-质谱联用技术测定‘玫瑰香’二次果果实芳香物质含量,研究其果实品质及芳香物质相对含量与露地‘玫瑰香’葡萄的差异。【结果】结果表明,‘玫瑰香’葡萄二次果单粒质量、纵径、横径较露地‘玫瑰香’分别减少了25.50%、10.20%、17.39%;果实总糖、总酸、果皮原花青素含量分别为21.06%、0.76%和10.30 mg·g-1,均显著高于露地‘玫瑰香’果实的16.40%、0.45%和5.38 mg·g-1。‘玫瑰香’二次果检测出的芳香化合物种类为33种,显著高于露地果实中的27种;二次果中醛类化合物相对含量最高,为47.52%,露地‘玫瑰香’中醇类化合物相对含量最高,为61.72%。‘玫瑰香’二次果中的萜醇类化合物、里那醇相对含量分别为37.39%、10.97%,显著低于露地‘玫瑰香’中的57.95%、43.71%;但是二次果中具有果香味的橙花醇、留兰香味的香芹醇、花香味的脱氢里那醇和甜‘玫瑰香’味的香茅醇相对含量分别为6.13%、0.55%、9.92%、1.19%,均显著高于露地‘玫瑰香’。‘玫瑰香’二次果中C6醛的相对含量显著高于露地‘玫瑰香’,其中2-己烯醛、己醛的相对含量分别为35.81%、9.98%,显著高于露地果实中的28.40%、4.85%。【结论】‘玫瑰香’二次果果实品质和芳香物质相对含量与露地‘玫瑰香’有显著差异;部分风味指标优于露地栽培‘玫瑰香’。
译 名：
Analysis on secondary fruit quality and aromatic compounds of ‘Muscat Hamburg’ grape under facility condition
作 者：
SHANG Jia-yin1,LI Shu-hai1,ZHU Zhi-qiang2,GAO Yang1,JI Xian2,TIAN Shu-fen1(1Tianjin Research Institute for Forestry and Pomolgy,Tianjin 300112 China;2National Engineering and Technology Research Center for Preservation of Agricultural Products,Tianjin 300384 China)
关键词：
‘Muscat Hamburg’grape;Proteced cultivation;Secondary fruit;Quality;Aromatic compounds
摘 要：
【Objective】 In order to investigate the difference in quality and aroma composition of ‘Muscat Hamburg’ between normal fruit under open cultivation and secondary fruit under protected cultivation,【Method】the solid phase micro-extraction(SPME) and gas chromatography-mass spectrometry(GC/MS) were used for determination.【Result】Compared with control,the single fruit weight,longitudinal diameter and transverse diameter of secondary fruits under protected cultivation were reduced by 25.50%,10.20% and 17.39%,respectively.However,the total sugar,total acid and peel procyanidin content were much higher,which were 21.06%,0.76% and 10.30 mg·g-1,respectively.There were 33 and 27 kinds of aroma compositions in secondary fruits and normal fruits,respectively.Aldehydes were the richest compounds in secondary fruits,with relative content of 47.52%,while alcohols were the richest in normal fruits,with relative content of 61.72%.Under protected cultivation,the relative contents of terpene alcohol and linalool were 37.39% and 10.97%,respectively,and they were markedly lower than that under open cultivation(57.95% and 43.71%).However,the relative contents of nerol with fruity scent,dihydrocarveol with mentha spicata aroma,hotrienol with potpourri scent and citronellol with rose aroma were higher than that under open cultivation,which were 6.13%,0.55%,9.92% and 1.19%,respectively.The relative contents of 2-hexenal and hexanal under protected cultivation were 35.81% and 9.98%,respectively,while they were 28.40% and 4.85%,respectively,under open condition,which indicated that protected cultivation promoted the release of C6 aldehydes.【Conclusion】The results suggested that there were markedly differences in the quality and aromatic compounds between secondary fruits under protected condition and normal fruit under open cultivation,and some indexes under protected cultivation were better than that under open cultivation.
