食品科学 ›› 2017, Vol. 38 ›› Issue (23): 94-99.doi: 10.7506/spkx1002-6630-201723016

• 基础研究 • 上一篇    下一篇

不同品种和成熟度蓝莓理化特性的主成分分析评价

谢跃杰1,王仲明1,王 强1,张忠明2,熊政委1,吴洪斌3,*   

  1. 1.重庆第二师范学院生物与化学工程学院,重庆 400067;2.甘肃农业大学食品科学与工程学院,甘肃 兰州 737100;3.新疆农垦科学院农产品加工研究所,新疆 石河子 832000
  • 出版日期:2017-12-15 发布日期:2017-12-07
  • 基金资助:
    新疆建设兵团工业科技攻关项目(2015AB030);重庆市五大功能区创新创业团队支持计划项目(201618793)

Assessment of the Differences in Physical, Chemical and Phytochemical Properties of Different Blueberry Cultivars Harvested at Different Dates Using Principal Component Analysis

XIE Yuejie1, WANG Zhongming1, WANG Qiang1, ZHANG Zhongming2, XIONG Zhengwei1, WU Hongbin3,*   

  1. 1. College of Biological and Chemical Engineering, Chongqing University of Education, Chongqing 400067, China; 2. College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 737100, China; 3. Institute of Agro-Food Science and Technology, Xinjiang Academy of Agricultural And Reclamation Science, Shihezi 832000, China
  • Online:2017-12-15 Published:2017-12-07

摘要: 蓝莓的品种和成熟度对其色泽、品质、理化成分及其生理功能的意义重大。本实验研究了4 个具有代表性 的蓝莓品种(‘安娜’、‘巴尔德温’、‘园蓝’和‘巨蓝’)及其3 个成熟度(Ⅰ、Ⅱ、Ⅲ)对其感官品质、理 化特性、功效成分和抗氧化活性的影响,并通过主成分分析法(principal component analysis,PCA)研究蓝莓不同 品种及成熟度与所分析指标之间的关联性。研究发现,蓝莓的品种和成熟度对其理化特性影响程度不同,并且蓝莓 品种对VC含量和抗氧化活性的影响大于成熟度的影响;PCA散点图中的品种聚类揭示了各蓝莓归属。从营养成分 和生理功能角度出发,‘安娜’和‘巴尔德温’品种是最佳的加工和提取活性成分用栽培品种。本研究为蓝莓品种 选育和加工利用提供了理论依据。

关键词: 蓝莓, 品种, 成熟度, 理化特性, 总酚, 抗氧化, 主成分分析

Abstract: Different blueberry cultivars and maturity are important for blueberry color, quality, phytochemical components and physiological functions. The sensory quality, phytochemical properties, antioxidant activity and phytochemical components of four different blueberry cultivars (‘Anna’, ‘Baldwin’, ‘Gardenblue’ and ‘Plolific’) harvested at three different dates (Ⅰ, Ⅱ and Ⅲ) were investigated. The correlations of the investigated parameters with cultivar and maturity were investigated by the statistical approach of principal component analysis (PCA). Results indicated that both cultivar and harvesting date affected the analyzed parameters and cultivar had a more significant effect on VC content and antioxidant activity. PCA scatter plots showed that the blueberry samples could be clearly classified. From both nutritional and physiological points of view, ‘Anna’ and ‘Baldwin’ were the best cultivars for processing and the extraction of active phytochemicals. These results can provide a theoretical guideline for the breeding, processing and application of blueberry.

Key words: blueberry, cultivars, maturity, physicochemical properties, total polyphenol, antioxidant, principal component analysis (PCA)

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