新疆核桃及后代坚果矿物质营养元素分析

采用电感耦合等离子体原子发射光谱法和电感耦合等离子体质谱法测定了新疆温185、新新2号核桃品种及后代坚果中12种(P、K、Ca、Mg、Na、Si、Fe、B、Mn、Cu、Zn、Se)矿质元素含量,并利用相关性、主成分分析的方法对其进行了评价。结果表明:'温185'和'新新2号'核桃坚果12种矿质元素素总含量分别为1115.29、933.59mg/100g,其中P元素含量最高,Se元素含量最低;温185和后代核桃仁中P元素含量分别为563.24和608.54mg/100g;新新2号和后代核桃仁中P元素含量分别为386.96和439.28mg/100g,说明P是核桃仁内主要矿质元素。相关性分析显示,温185核桃后代种仁中,K与Mg元素之间呈极显著正相关(p<0.01);新新2号核桃后代种仁中Zn与Cu元素之间呈极显著正相关(p<0.01)。综合考虑,以亲本为对照,以超过亲本的高营养价值为筛选优良品系的指标,可以得出,北1-10、北1-11、北3-13、北4-16、北6-9、北6-11;中1-11、中2-12、中3-11、中4-12、中5-9、中6-11可以认为是较优品系,可作为核桃果实的功能性食品开发的适宜类型。温185、新新2号两种核桃品种实生后代矿质元素含量相对丰富,这为品种改良尤其是高含量的营养元素的选择性育种提供了良好的种质资源。

Analysis of Nutrient Elements in Xinjiang Walnut and its Offspring Nuts

Inductively coupled plasma atomic emission spectrometry and inductively coupled plasma mass spectrometry were used to determine the content of 12 mineral elements( P,K,Ca,Mg,Na,Si,Fe,B,Mn,Cu,Zn,Se) in the nuts of Xinjiang Wen 185,Xinxin No.2 walnut varieties and offspring nuts and it was evaluated by correlation and principal component analysis.The results showed that the total contents of 12 mineral elements in'Wen 185'and'Xinxin 2'walnut nuts were 1115.29 and 933.59 mg /100 g,respectively,with the highest content of P and the lowest content of Se.The contents of P in Wen 185 and offspring walnut kernels were 563.24 and 608.54 mg /100 g,respectively.The contents of P in Xinxin 2 and their offspring were 386.96 and 439.28 mg /100 g,respectively,indicating that P was the main mineral element in walnut kernel.Correlation analysis showed that there was a significant positive correlation between K and Mg in the seed of Wen 185 walnut ( p < 0.01). There was a significant positive correlation between Zn and Cu in the seed of Xinxin No.2 walnut( p < 0.01).Comprehensive consideration,taking the parent as the control,and exceeding the high nutritional value of the parent as the index for screening the excellent strain,it can be concluded that'Bei1-10','Bei 1-11','Bei3-13','Bei4-16','Bei6-9','Bei6-11';'Zhong 1-11','Zhong 2-12','Zhong 3-11','Zhong 4-12','Zhong 5-9','Zhong 6-11'can be considered as superior strains,and can be used as functional food development of walnut fruit suitable variety.There are relatively rich mineral elements in the seedlings of Wen 185 and Xinxin No.2,which provide a good germplasm resource for the selective of breeding of varieties,especially high-level nutrients.