梅州沙田柚苦涩味与施用硫酸钾镁相关性研究  

Study on the Correlation between the Bitterness and Mg, S,and Cl Element of Meizhou Shatian Pomelo

作　　者：丘苑新[1] 朱凯祺 马路凯 莫娟娟 钟永辉 柳建良[1] QIU Yuan-xin;ZHU Kai-qi;MA Lu-kai(Department of Light Industry and Food,Zhongkai University of Agriculture and Engineering,Guangzhou,Guangdong 510220)

机构地区：[1]仲恺农业工程学院轻工食品学院,广东广州510220 [2]梅州市梅县区农业科学研究所,广东梅州514500

出　　处：《安徽农业科学》2021年第20期64-67,83,共5页Journal of Anhui Agricultural Sciences

摘　　要：[目的]研究施用硫酸钾镁肥料后沙田柚苦味增加的因素,为梅州沙田柚的种植和栽培提供指导,提高梅州沙田柚产业的质量。[方法]以硫酸钾镁肥料施肥种植的梅州沙田柚为原料,通过相关性分析方法分析柚子苦味增加的因素。采用高效液相色谱法测定柚子的柚皮苷和柠檬苦素2种苦味物质的含量,对镁离子、氯离子和总硫这3种影响因素含量与感官评价进行相关性分析。[结果]感官评价与柠檬苦素之间呈极显著正相关(P<0.01),与柚皮苷之间的相关性不显著。柠檬苦素与镁离子之间呈极显著相关性(P<0.01),而与氯离子和总硫含量相关性不显著。反映出施用硫酸钾镁肥料会使得柚子镁离子含量增高,从而使得柚子中的柠檬苦素含量增加,造成梅州沙田柚苦味增加。[结论]在梅州地区施用硫酸钾镁肥料会使柚子的苦味增加,影响品质。[Objective]In order to provide guidance for planting and cultivation of Shatian pomelo and improve the quality of Shatian pomelo industry in Meizhou, the factors of bitterness increase of Shatian pomelo after applying potassium magnesium sulfate fertilizer were studied.[Method]Using Meizhou Shatian pomelo, which was fertilized with potassium magnesium sulfate fertilizer, as raw material, the factors that increased the bitterness of pomelo were analyzed by correlation analysis.The contents of naringin and limonin in grapefruit were determined by HIGH performance liquid chromatography.The correlation between the contents of magnesium ion, chloride ion and total sulfur and sensory evaluation was analyzed.[Result]Sensory evaluation had a very significant positive correlation with limonin(P<0.01),while had no significant correlation with naringin.Limonin had a very significant positive correlation with magnesium ions(P<0.01),had a significant positive correlation with chloride ions(P<0.05),and had no significant correlation with total sulfur content.It could be reflected that the application of potassium magnesium sulfate fertilizer would increase the content of magnesium ion and chloride ion in grapefruit, which would increase the content of limonin in grapefruit, increase the bitterness of Meizhou Shatian pomelo.[Conclusion]The application of potassium magnesium sulfate in Meizhou area increased the bitterness and affected the quality of grapefruit.

关 键 词：高效液相色谱(HPLC) 沙田柚 柚皮苷 柠檬苦素 相关性分析 

分 类 号：S666.3[农业科学—果树学]