贵州从江黄金百香果果实品质评价

Fruit quality evaluation of golden passion fruit in Congjiang County,Guizhou Province

分析了贵州省从江县6个村寨种植的钦蜜9号黄金百香果果实品质,为提升其果实品质提供理论依据。结果表明:6个村寨的果实除果汁瓤重、果皮厚度、可食率和种子粒数差异不显著外,其余外观品质指标和内在品质指标均存在不同程度的差异;相关性分析发现,果实大小与单果重、果皮重、种子鲜重等显著相关,色彩指数a^(*)值与色度角h°值呈极显著负相关,色彩指数b^(*)值与色彩饱和度C值呈极显著正相关;主成分的累计方差贡献率达94.26%,第1主成分主要反映果实的风味品质,第2主成分主要反映果实色泽,第3主成分主要反映果实大小,第4主成分主要反映果实内在品质。综上,6个村寨的钦蜜9号黄金百香果果实为中等大小、近圆形,亮黄色,可溶性固形物含量均在18.60%以上,可滴定酸含量均低于1.18%,果实内在品质好,高糖低酸,口感纯甜,宜鲜食。

The fruit quality of 'Qinmi 9' golden passion fruit planted in six villages of Congjiang County,Guizhou Province was analyzed to provide theoretical basis for improving its fruit quality.The results showed that,except that there was no significant difference in fruit flesh weight,peel thickness,edible rate and seed number among the six villages,the other appearance quality indexes and internal quality indexes had different degrees of difference.The correlation analysis showed that fruit size was significantly correlated with single fruit weight,peel weight and seed fresh weight.The value of color index a^(*) was significantly negatively correlated with the value of color angle h°,but the value of b^(*) was significantly positively correlated with the value of color satiety C.The cumulative variance contribution rate of the principal components was 94.26%.The first principal component mainly reflected fruit flavor quality,the second principal component mainly reflected fruit color,the third principal component mainly reflected fruit size,and the fourth principal component mainly reflected fruit internal quality.In conclusion,'Qinmi 9' golden passion fruit from the six villages is medium and nearly round in size,bright yellow,the soluble solids content is above 18.60%,the titratable acid content is all below 1.18%,good internal quality,high in sugar and low in acid,pure sweet taste.So the passion fruit should be eaten fresh.