摘要
【目的】为探明红美人杂柑的品质特性,对红美人杂柑果肉不同部位的糖酸及矿质含量的积累规律进行了研究。【方法】对同一果园不同时间及浙江省内不同区域果园的红美人成熟适收期果实进行取样,将每批样品果肉分成果蒂部、果中部及果顶部,采用理化分析法及火焰原子吸收光谱法检测可溶性固形物(TSS)、可滴定酸(TA)及矿质成分含量,结果数据经SPSS 19.0统计软件处理。【结果】果肉3个部位的TSS及固酸比(TSS/TA)由果蒂部、果中部再到果顶部的含量呈增加趋势,且果蒂部与果顶部均为显著差异,各部位TA的分布规律不明显;全果的TSS和TA均与果中部最接近且差异不显著,对应的相关系数R2分别为0.9807和0.9469;矿质养分中大量元素K含量由果蒂部、果中部到果顶部呈下降趋势,元素P含量则正好相反;中量元素Ca与Mg在果肉各部位的含量特征基本一致,呈V形分布;微量元素Zn、B以果顶部积累最多,而Fe、Cu在各部位差异不显著;相关性分析为果实TSS含量和固酸比均与元素P含量呈极显著正相关而与K含量、纵径呈极显著负相关,TSS与Zn含量、果形指数呈极显著负相关,固酸比与Ca含量呈极显著正相关,而TA与K含量呈极显著正相关且与Ca、P含量呈极显著负相关。【结论】红美人杂柑果肉的TSS、固酸比分布具不均匀性,果顶部显著高于果蒂部;大中量矿质元素在各部位的积累呈规律性;果实的中部最能代表全果,田间速测可采取果中部榨汁取样;果实纵径、果形指数及K、P、Ca、Zn等矿质元素含量与品质呈极显著相关。研究结果可以为品质评价和提质栽培管理提供参考。
【Objective】Zhejiang is one of the nine major citrus producing areas.The traditional main variety in this area is Satsuma mandarin,the maturity period of fruits is mainly concentrated in October to December.Citrus hybrids are derived from natural or artificial hybridization among different citrus species,so they have similar nutrition,flavor,and easy peeling.Therefore,citrus hybrids could be good choices for structural adjustment of citrus varieties.In recent years,Hongmeiren tangor(Citrus hybrid)has been widely cultivated in Zhejiang,and previous studies have focused on botanical characteristics,biological characteristics and cultivation techniques.It was found that the fruit quality of Hongmeiren showed obvious non-uniformity in the sampling process.The quality and mineral contents in different parts of the fruits were studied in order to further explore the quality characteristics of this species.Furthermore,a sampling method for quality evaluation was proposed.【Methods】The mature fruits of Hongmeiren were sampled at different times in the same orchard or the orchards in different regions respectively in Zhejiang province.The flesh of each group of fruit samples was divided into three parts,including the stem end,mid and top.The quality indexes,such as soluble solid(TSS)and titratable acid(TA),were determined by physical and chemical analysis,and the atomic absorption analysis was used to analyze the 8 kinds of mineral nutrients.The data were statistically analyzed by SPSS.19.0.【Results】The contents of TSS and sugar acid ratio(TSS/TA)in the three parts of pulp were the stem end<the mid<the top of the fruits,and there were significant differences between the stem end and the top of the fruits,while the variation of TA was not obvious.The contents of TSS and TA of the whole fruit were closest to those of the mid of the fruit,with no significant difference.The corresponding correlation coefficients R2 of TSS and TA were 0.9807 and 0.9469,respectively.Therefore,the middle part of the fruit could best re
作者
林媚
张伟清
孙立方
平新亮
徐程楠
冯先橘
LIN Mei;ZHANGWeiqing;SUN Lifang;PING Xinliang;XU Chengnan;FENG Xianju(Zhejiang Citrus Research Institute,Taizhou 318020,Zhejiang,China)
出处
《果树学报》
CAS
CSCD
北大核心
2022年第8期1397-1406,共10页
Journal of Fruit Science
基金
浙江省研发攻关计划项目(2022C02012)
国家柑橘风险评估重大专项(GJFP2019012)。
