宁夏不同产区3个品种枸杞酚类物质的差异性分析

Analysis of the differences in phenolic substances of 3 varieties of Lycium barbarum from different production areas in Ningxia

中文关键词:  枸杞  酚类物质  差异性  产区

英文关键词:Lycium barbarum  phenolic substance  difference  area

中文摘要:

      目的 对比分析宁夏不同产区的3个品种枸杞中酚类物质含量差异。方法 采集宁夏不同产区的宁杞1号、宁杞7号、科杞608号的枸杞样品共计36份, 监测分析枸杞中黄酮、酚酸、类胡萝卜素、甜菜碱含量差异, 构建基于酚类物质的不同产区枸杞鉴别模型。结果 不同产区的宁杞1号枸杞中黄酮、酚酸、类胡萝卜素及甜菜碱在4个产区具有显著差异(P<0.05), 红寺堡产区的酚类物质含量显著高于其他产区。宁杞7号枸杞中黄酮、类胡萝卜素和甜菜碱在5个产区具有显著差异, 红寺堡产区的酚类物质含量显著高于其他产区。科杞608号枸杞中黄酮、酚酸和甜菜碱在3个产区具有显著差异, 中宁产区的酚类物质含量显著高于其他产区。建立了基于正交偏最小二乘判别分析方法的不同产区枸杞鉴别模型, 其整体正确判别率为100%。结论 宁夏不同产区的枸杞间酚类物质含量均存在显著差异。本研究为枸杞的功能成分的开发和不同产区枸杞的品质综合评价提供参考依据。

英文摘要:

      Objective To comparatively analyze the differences in phenolic substance content among 3 varieties of Lycium barbarum from different production areas in Ningxia. Methods A total of 36 Lycium barbarum samples of Ningqi No.1, Ningqi No.7 and Keqi No.608 from different production areas in Ningxia were collected. The differences in the content of flavonoids, phenolic acids, carotenoids and betaine in Lycium barbarum were monitored and analyzed, and identification model of Lycium barbarum from different production areas based on phenolic substances was constructed. Results The flavonoids, phenolic acids, carotenoids and betaine in Ningqi No.1 Lycium barbarum from different production areas showed significant differences (P<0.05) among 4 production areas. The content of phenolic substances in the Hongshibao production area was significantly higher than that in other production areas. The flavonoids, carotenoids and betaine in Ningqi 7 Lycium barbarum showed significant differences among the 5 production areas. The content of phenolic substances in the Hongshibao production area was significantly higher than that in the other production areas. The flavonoids, phenolic acids and betaine in Keqi 608 Lycium barbarum showed significant differences among the 3 production areas. The content of phenolic substances in the Zhongning production area was significantly higher than that in other production areas. An identification model of Lycium barbarum from different production areas based on the orthogonal partial least squares discriminant analysis discriminant analysis method was established, and its overall correct discrimination rate was 100%. Conclusion There are significant differences in the content of phenolic substances among Lycium barbarum from different production areas in Ningxia. This study provides a reference basis for the development of functional components of Lycium barbarum and the comprehensive quality evaluation of Lycium barbarum from different production areas.