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园艺学报 ›› 2025, Vol. 52 ›› Issue (9): 2439-2452.doi: 10.16420/j.issn.0513-353x.2024-0943

• 栽培·生理生化 • 上一篇    下一篇

云南巍山不同采收季广东香水柠檬(Citrus medica)挥发性物质差异分析

李雪1,2, 蔡中虎3, 高俊燕4, 陈嘉景1,2, 刘园1,2,*(), 徐娟1,2,*()   

  1. 1 华中农业大学园艺林学学院果蔬园艺作物种质创新与利用全国重点实验室, 武汉 430070
    2 华中农业大学园艺产品感官评价与品质检测中心, 武汉 430070
    3 云南大理巍山聚丰农业科技有限公司, 云南大理 671000
    4 云南省农业科学院热带亚热带经济作物研究所, 云南保山 678000

Differences in Volatile Compounds of Citrus medica‘Guangdong Xiangshui’Fruits in Different Harvesting Seasons from Weishan of Yunnan Province

LI Xue1,2, CAI Zhonghu3, GAO Junyan4, CHEN Jiajing1,2, LIU Yuan1,2,*(), XU Juan1,2,*()   

  1. 1 National Key Laboratory for Germplasm Innovation & Utilization of Horticultural CropsCollege of Horticulture & Forestry Sciences,Huazhong Agricultural University, Wuhan 430070, China
    2 Horticultural Products Sensory Evaluation and Quality Testing CenterHuazhong Agricultural University, Wuhan 430070, China
    3 Yunnan Dali Weishan Jufeng Agricultural Technology Co.Ltd,Dali, Yunnan 671000, China
    4 Institute of Tropical and Subtropical Cash CropsYunnan Academy of Agricultural Sciences,Baoshan, Yunnan 678000, China
  • Received:2025-04-23 Revised:2025-07-07 Published:2025-09-25 Online:2025-09-24

摘要: 以云南巍山地区春、夏、秋、冬采收的‘广东香水’柠檬(Citrus medica‘Guangdong Xiangshui’)果实为材料,采用气相色谱—质谱联用仪(GC-MS)分析了脱花后、膨大期及商业成熟期的果实切片挥发性物质谱。结果显示:在所有样品中共检测到32种挥发性物质,包括8种单萜、2种单萜醇、3种单萜醛、3种单萜酯、1种单萜氧化物、10种倍半萜、1种倍半萜醇、3种醛类及1种其他物质。单萜以d-柠檬烯和β-月桂烯为主,且d-柠檬烯占总挥发性物质含量的86.08% ~ 92.02%;单萜醛主要为β-柠檬醛、α-柠檬醛以及香茅醛。不同生长发育期相比,挥发性物质组分在脱花后最为丰富。各季节商业成熟期果实相比,冬季果总挥发性物质含量最高,夏季果种类最丰富,而春季果种类最少、含量最低。基于挥发性物质的PLS-DA分析可将不同季节的商业成熟期果实进行有效区分,α-松油醇在秋季果中含量最高,达到(2.49 ± 0.18)μg · g-1,而夏季果中仅为(1.59 ± 0.18)μg · g-1;十一醛则仅在冬季果中检测到。不同季节不同发育期采收的广东香水柠檬果实切片挥发性物质存在种类及含量的较大差异。秋季膨大期果实因含有丰富的香茅醛、β-柠檬醛、α-柠檬醛等香气活性物质,香气品质最佳;商业成熟期果实香气品质以冬季和夏季采收时为优;脱花后果实于夏季采收时挥发性物质更丰富。本研究结果可为云南巍山地区广东香水柠檬的适时采收和品质监控提供数据支撑。

关键词: 广东香水柠檬, 挥发性物质, 采收季节, 气相色谱—质谱联用

Abstract:

Taking the fruits of‘Guangdong Xiangshui’lemon(Citrus medica)harvested in spring,summer,autumn and winter in Weishan area of Yunnan as materials,the volatile profiles of fruit slices at post flowering stage,enlargement stage and commercial maturity stage were analyzed using gas chromatography-mass spectrometry(GC-MS). The results showed that 32 volatile compounds were detected in all the samples,including 8 monoterpenes,2 monoterpene alcohols,3 monoterpene aldehydes,3 monoterpene esters,1 monoterpene oxide,10 sesquiterpenes,1 sesquiterpene alcohol,3 aldehydes and 1 other compound. Monoterpenes were dominated by d-Limonene and β-Myrcene,and d-Limonene accounted for 86.08% to 92.02% of the total volatiles;monoterpene aldehydes were dominated by β-Citral,α-Citral and Citronellal. Among different development stages,volatile compounds were most abundant in the post flowering stage. Regarding commercial maturity stage fruits of each season,winter fruits had the highest total volatile content,the richest compounds were found in summer fruits,whereas spring fruits had the least compounds and lowest content. PLS-DA analysis based on volatiles can effectively distinguish commercial maturity stage fruits harvested from different seasons;α-Terpinol content was the highest in autumn fruits,reaching(2.49 ± 0.18)μg · g-1,whilst it was only(1.59 ± 0.18)μg · g-1 in summer fruits;Undecanal was detected only in winter fruits. Largely variated volatile compounds richness and contents at different development stages of four seasons in the slices of Guangdong Xiangshui lemon fruits were investigated. During the enlargement stage in autumn,the fruits had the best aroma quality due to the accumulation of aroma active compounds such as citronellal,β-citral and α-citral;the aroma quality of fruits at the commercial maturity stage was superior when harvested in winter and summer;the fruits at post flowering stage harvested in summer had the highest content of volatile compounds. The results of this study can provide data support for timely harvesting and quality monitoring of Guangdongxiangshui lemon in Weishan,Yunnan.

Key words: Citrus medica‘Guangdong Xiangshui’, volatile compounds, harvested seasons, gas chromatography-mass spectrometry