Grey correlation analysis of fruit quality and mineral elements in fruits of yellow passion fruit
In order to clarify the relationship between fruit quality and mineral elements of yellow passion fruit,'Guava-flavored Yellow Passion Fruit'were selected as the research materials to dynamic analysis the contents of mineral elements,soluble solid,titratable acid,vitamin C,pigment in fruit ripening period.The grey correlation analysis was used to analyze the correlation between mineral elements and fruit quality.The results showed that during the fruit developmental phase,the contents of macroelement were K＞N＞Ca＞S＞Mg＞P,and the contents of microelement were Na＞Fe＞Mn＞Zn＞B＞Cu＞Se＞Mo,and the contents of various mineral elements in the peel were much higher than those in the pulp.During fruit developmental phase of yellow passion fruit,the contents of soluble solids,titratable acid,carotenoids and flavonoids in pulp showed a increased firstly and then decreased trend,the solid acid ratio and anthocyanins content in pulp showed a increased gradually trend,and the contents of vitamin C,chlorophyll a and chlorophyll b in pulp showed a decreased gradually trend.Grey correlation analysis showed that the contents of N,P,K,Ca,Mg,S,Na,B,Cu,Se elements in peel and N,P,K,Ca,S,Cu,Na,B,Zn,Mn elements in pulp of yellow passion fruit were highly correlated with the contents of soluble solids,titratable acid,vitamin C,flavonoids,anthocyanins,chlorophyll a,chlorophyll b,carotenoids and solid acid ratio.Therefore,the highest demand for macroelement K,N and microelement Na,Fe during developmental phase of yellow passion fruit.Carotenoids are the main pigments that affect the color of fruit pulp,followed by anthocyanins.The beginning coloring period of the fruit peel is the key period for the change of fruit sugar and acid quality,with emphasis on the application of elements such as N,K,Cu,Na,B and Zn.The research results provide a theoretical basis for guiding the scientific fertilization of yellow passion fruit.
NETL
NSTL
万方数据
