两种果园管理模式下梁平柚果实苦味物质和挥发性物质的变化
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作者单位:

1.西北农林科技大学;2.中国农业科学院柑桔研究所;3.华中农业大学

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国家重点基础研究发展计划(973计划),国家自然科学基金项目(面上项目,重点项目,重大项目)


Changes of the bitter and volatile compounds in fruit of Liangping pummelo under two orchard management modes
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Affiliation:

1.Citrus Research Institute, Chinese Academy of Agricultural Sciences;2.Huazhong Agricultural University

Fund Project:

the National Key Research and Development Program,the National Natural Science Foundation of China

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    摘要:

    为了探索提高目前已经存在的弃管果园的土地产出价值的有效途径,本研究以正常栽培管理和弃管果园中的梁平柚果实为材料,借助HPLC和GC-MS分别对果实中的主要苦味物质和挥发性物质谱进行比较分析。与正常管理的果实相比,柚皮苷的含量在弃管果园果实所有组织中显著升高,柠檬苦素和诺米林则在除有色层以外的组织中也显著增高;相反,总单萜类物质、总倍半萜类物质、总非萜类物质以及挥发性物质总量全部显著降低,但主要挥发性物质的组成与含量百分比保持稳定。弃管模式导致了梁平柚果实苦味增强和香味降低,鲜食品质大大降低;但可通过加强苦味物质保健功能的科普宣传,将弃管果园中果实开发为功能性食品,进而提高已经存在的弃管果园的土地产出价值。

    Abstract:

    To explore ways to confer greater land economic output of orchards without cultivation managements, Liangping pummelo fruits under normal cultivation management and no cultivation management were used to determine the constitutions of main bitter compounds and volatile profiles with the assistance of high-performance liquid chromatography and gas chromatography-mass spectrometry. Comparing with the fruit from orchard under normal cultivation managements, significantly higher contents of naringin was detected in the flavedo, albedo, segment membrane and juice sacs of fruits under no cultivation managements. Similarly, limonin and nomilin were also significantly higher in albedo, segment membrane and juice sacs of fruits under no cultivation managements. On the contrary, the total amount of monoterpenoids, sesquiterpenoids, non-terpenoids, and volatiles were all significantly lower in fruit under no cultivation management than those in fruit under normal cultivation management. However, the constitutions and percentages of main volatiles were very similar in fruit from the two different orchards. In summary, the fruit from orchard under no cultivation managements contained lesser volatile compounds, but more bioactive bitter compounds, which led to an unpleasant fresh fruit quality. However, fruit from orchard under no cultivation managements was more suitable for using as functional food with the assistance of popular health propaganda of bitter compounds, which could elevate the economic benefits and land output values of orchard under no cultivation managements.

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  • 收稿日期:2020-12-20
  • 最后修改日期:2021-01-11
  • 录用日期:2021-03-03
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