不同品种宁夏枸杞鲜果干制特征分析及评价

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  • (兰州理工大学 生命科学与工程学院,甘肃 兰州,730050)

网络出版日期: 2018-08-01

基金资助

国家自然科学基金(31460629);兰州市科技发展计划项目(2013-4-132)

Comparative analysis of drying process characters of wolfberry (Lycium barbarum L.) fresh fruit in different cultivars

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  • (School of Life Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China)

Online published: 2018-08-01

摘要

为探讨构建不同品种宁夏枸杞鲜果适宜干制加工的鲜果品质性状综合评价体系,以西北地区广泛栽培的9个品种宁夏枸杞鲜果为材料,用扫描电镜研究了表皮蜡质形态,并通过单因素方差分析、因子分析、相关性分析和聚类分析,比较了比表面积、组织含水量、单果体积、百粒鲜重和百粒干重的差异。结果表明,9个品种宁夏枸杞鲜果果形和表皮蜡质形态相似,但品种间比表面积、组织含水量、单果体积、百粒鲜重和百粒干重差异显著。组织含水量与比表面积呈显著正相关,与百粒干重呈极显著负相关;体积、百粒鲜重、百粒干重间均呈极显著正相关。百粒干重和组织含水量是体现枸杞鲜果干制加工特性的关键指标。9个宁夏枸杞品种聚为4类,蒙杞1号为一类,最适宜于干制;宁杞0901、宁杞7号、宁杞3号聚为一类;宁杞0702号、宁杞6号、宁杞5号、宁杞4号聚为一类,扁果枸杞单独聚为一类,后两类不宜干制。

本文引用格式

袁惠君 , 贾鸿震 , 李虎军 , 等 . 不同品种宁夏枸杞鲜果干制特征分析及评价[J]. 食品与发酵工业, 2018 , 44(6) : 200 -204 . DOI: 10.13995/j.cnki.11-1802/ts.015725

Abstract

In order to set up a comprehensive evaluation system for fresh fruit drying process indicators of different wolf berry cultivars, fresh fruits epidermis wax characteristics from nine kinds cultivated in northwest region were studied by scanning electron microscope. Specific surface area, tissue water content, single fruit volume, 100-grain of fruit fresh weight and 100-grain of fruit dry weight of different Lycium barbarum L. cultivars were analyzed by One-Way ANOVA, correlation analysis, factor analysis and cluster analysis. The results showed that there were no significant differences among nine cultivars of Lycium barbarum L. in fruit shape and epidermis wax form. However, great differences of specific surface area, tissue water content, single fruit volume, 100- grain of fruit fresh weight and 100- grain of fruit dry weight was observed in different Lycium barbarum L. cultivars. Tissue water content was significantly and positively correlated with the specific surface area, whereas it was significantly and negative correlation with the 100- grain of fruit dry weight. Single fruit volume, 100- grain of fruit fresh weight and 100- grain of fruit dry weight was significantly and positively correlated with each other. Factor analysis showed that 100- grain of fruit dry weight and tissue water content were the key indicators for drying process. Meanwhile, nine Lycium barbarum L. cultivars could be divided into four types: Mengqi-1 which was classified into a cluster was the most suitable cultivar for drying process; Ningqi-0901, Ningqi-7 and Ningqi-3 were classified into the same cluster; Ningqi-0702, Ningqi-6, Ningqi-5 and Ningqi-4 were classified into the other cluster. Bianguo was classified into a cluster by itself. The latter two clusters were not suitable for drying process.
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