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基于159个品种的苹果鲜榨汁风味评价指标研究 被引量:25

Studies on Taste Evaluation Indices for Fresh Apple Juice Based on 159 Cultivars
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摘要 以159个苹果品种为试材,探讨了鲜榨汁风味、可滴定酸含量、可溶性固形物含量、可溶性糖含量、固酸比及糖酸比之间的相互关系,明确了苹果鲜榨汁风味的适宜定量评价指标及其分级标准。苹果鲜榨汁风味值、可滴定酸含量、可溶性固形物含量、可溶性糖含量、固酸比和糖酸比离散度不同,变异系数在12.2%~60.7%;鲜榨汁可滴定酸含量和可溶性固形物含量均符合正态分布,在去掉两个拖尾品种后可溶性糖含量也符合正态分布,风味值近似正态分布;风味值、可滴定酸含量、固酸比和糖酸比之间存在极显著的一元线性关系或幂函数关系,决定系数(R2)高达0.8811~0.9740;可滴定酸含量、固酸比和糖酸比均为苹果鲜榨汁风味的适宜定量评价指标,其中以可滴定酸含量指标最为简便和准确;鲜榨汁可滴定酸含量、固酸比和糖酸比均可划分为5级(对应的鲜榨汁风味分别为甜、酸甜、酸甜适度、甜酸和酸),5级的平均品种比例分别为3.35%、20.55%、40.67%、22.64%和12.79%。 Using 159 cultivars of apple as samples,relationships among taste,titrable acids(Ta), soluble solid(sSSo),soluble sugar(sSSu),soluble solids/titrable acid(sSSo/Ta),and soluble sugar/titrable acids(SSu/Ta) of fresh apple juice were investigated,and the suitable quantitative evaluation indices for taste of fresh juice and their grading standards were established. The results denoted that:Taste value (Tv),Ta,SSo,SSu,SSo/Ta,and SSu/Ta of fresh apple juice had different dispersion,their coefficient of variation were between 12.2% and 60.7%;Both Ta and SSo of fresh apple juice distributed normally, SSu also distributed normally after 2 cultivars were removed,while Tv distributed near normally;Among Tv,Ta,SSo/Ta,and SSu/Ta of fresh apple juice,there were highly significant simple linear equations or power functions with coefficient of determination up to 0.8811–0.9740;Ta,SSo/Ta,and SSu/Ta were all suitable quantitative evaluation indices for taste of fresh apple juice,among which Ta is the most handy and accurate one;Ta,SSo/Ta,and SSu/Ta of fresh apple juice were all divided into 5 grades(the corresponding taste of fresh apple juice were respectively sweet,sour-sweet,sour-sweet moderately, sweet-sour,and sour),and the average cultivar ratio of the 5 grades were 3.35%,20.55%,40.67%, 22.64%,and 12.79%,respectively.
出处 《园艺学报》 CAS CSCD 北大核心 2012年第10期1999-2008,共10页 Acta Horticulturae Sinica
基金 公益性行业(农业)科研专项经费项目(200903043)
关键词 苹果 鲜榨汁 风味 定量评价指标 分级标准 apple fresh juice taste quantitative evaluation index grading standard
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