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中国精品科技期刊2020
王萍, 弋晓康, 陆建康, 宋丽军, 李述刚. 基于热风干燥条件下新疆红枣的质构特性[J]. 食品工业科技, 2014, (11): 123-126. DOI: 10.13386/j.issn1002-0306.2014.11.018
引用本文: 王萍, 弋晓康, 陆建康, 宋丽军, 李述刚. 基于热风干燥条件下新疆红枣的质构特性[J]. 食品工业科技, 2014, (11): 123-126. DOI: 10.13386/j.issn1002-0306.2014.11.018
WANG Ping, YI Xiao-kang, LU Jian-kang, SONG Li-jun, LI Shu-gang. Textural properties of red dates from XinJiang based on hot air drying conditions[J]. Science and Technology of Food Industry, 2014, (11): 123-126. DOI: 10.13386/j.issn1002-0306.2014.11.018
Citation: WANG Ping, YI Xiao-kang, LU Jian-kang, SONG Li-jun, LI Shu-gang. Textural properties of red dates from XinJiang based on hot air drying conditions[J]. Science and Technology of Food Industry, 2014, (11): 123-126. DOI: 10.13386/j.issn1002-0306.2014.11.018

基于热风干燥条件下新疆红枣的质构特性

Textural properties of red dates from XinJiang based on hot air drying conditions

  • 摘要: 以新疆主栽制干品种骏枣、灰枣和哈密大枣为研究对象,探讨热风干燥条件下各品种间的基本营养成分与质构特性。并通过DPS和SPSS软件分析了这3种红枣间不同指标的差异,结果表明:3个品种总糖含量均≥59%,除还原糖含量外,其它各营养成分差异不显著(p>0.05);3个品种间的主要质构指标:硬度、回复性、内聚性、弹性、胶粘性、咀嚼性,存在显著性差异(p<0.05);糖、水分与质构特性有明显的相关性,即:红枣中水分与弹性负相关R=-0.934、还原糖与咀嚼性呈正相关R=0.989,通过质构指标的主成分分析得出,红枣的质构特性构成主要在第一和第二主成分上,其中在第一主成分中胶粘性、硬度和咀嚼性三个指数所占权重系数分别为0.935、0.886和0.885,第二主成分中,弹性权重比较大为0.975,由此得出胶粘性、硬度、咀嚼性、弹性四种指标可基本评价红枣的质构特性。 

     

    Abstract: Jun jujube, gray jujube and Hami jujube were chosen to study the basic nutrition ingredients and textural properties under hot-air drying condition.Index of these three different kinds of jujubes was analyzed by DPS and SPSS respectively.The results showed that their total sugar content were all more than 59%; except reducing sugar content, the differences of other various nutrients were not significant ( p > 0.05) ; main textural indicator including hardness, resilience, cohesion, elasticity, adhesiveness, chewiness, had a significant difference ( p < 0.05) ; sugar, moisture and texture characteristics were significantly correlated, including jujube moisture and elasticity being negative correlation R =- 0.934 and reducing sugar and chewing being positive correlation R = 0.989.Through principal component analysis on texture indicators, jujube textural properties constitute a major in the first and second principal components wherein the first main component adhesion, hardness and chewiness of the weight of three indices, coefficients of 0.935, 0.886, and 0.885, respectively.The second component, flexible weight was 0.975relatively great.The result showed that four basic evaluation indicators of textural properties of jujube were adhesiveness, hardness, chewiness, elasticity.

     

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