Journal of Agricultural Science and Technology ›› 2022, Vol. 24 ›› Issue (1): 119-127.DOI: 10.13304/j.nykjdb.2021.0413

• FOOD QUALITY & PROCESSING AND STORAGE • Previous Articles     Next Articles

Analysis and Evaluation of Amino Acid Composition in Different Macadamiaternifolia Germplasm

Tao ZHANG1(), Haiyun SONG1, Peng HE1, Yuanrong WEI1, Peng XU1, Qiujin TAN1, Shufang ZHENG1, Zhenshi QIN1, Yuming LU2, Wenlin WANG1()   

  1. 1.South Subtropical Agricultural Scientific Research Institute of Guangxi,Guangxi Academy of Agricultural Sciences Guangxi Chongzuo 532415,China
    2.Horticultural Research Institute,Guangxi Academy of Agricultural Sciences,Nanning 530007,China
  • Received:2021-05-14 Accepted:2021-07-26 Online:2022-01-15 Published:2022-01-25
  • Contact: Wenlin WANG

不同澳洲坚果种质果仁氨基酸组成分析与评价

张涛1(), 宋海云1, 贺鹏1, 韦媛荣1, 许鹏1, 谭秋锦1, 郑树芳1, 覃振师1, 陆宇明2, 王文林1()   

  1. 1.广西农业科学院广西南亚热带农业科学研究所,广西 崇左 532415
    2.广西农业科学院园艺研究所,南宁 530007
  • 通讯作者: 王文林
  • 作者简介:张涛 E-mail:zhangtaohjs@gxaas.net
  • 基金资助:
    广西农业科学院科技发展基金和基本科研业务费项目(桂农科2021JM127);崇左市科技计划项目(崇科攻2019041);广西农业科学院科技先锋队专项行动资助项目(桂农科JZ202008)

Abstract:

In order to understand the relationship between different Macadamia germplasms and the amino acid composition of nuts, and screen germplasm resources of Macadamia variety suitable for functional amino acid beverage processing, 10 varieties of excellent macadamia germplasm were selected as materials, and the compositions and contents of amino acids of different Macadamia germplasms were analyzed. The quality characteristics of different Macadamia germplasms were evaluated by hierarchical cluster analysis (HCA), orthogonal partial further squares discrimination analysis (OPLS-DA)and other multivariate statistical analysis methods. The results showed that there were a complete range of amino acids in Macadamia nuts, and there were significant differences in contents of Glu, Arg and Met among different Macadamia germplasm. 10 Macadamia germplasms were classified into 2 groups by HCA, and the class Ⅱ including 6 Macadamia germplasms with better quality. OPLS-DA indicated the model was accurate and reliable, and characteristic amino acid fractions with significant differences between the 2 classes were found, which proved that the six Macadamia germplasms of Class Ⅱ had better overall amino acid quality with high contents of Glu and Arg. They could be used as germplasm resources for selecting and breeding Macadamia varieties suitable for functional amino acid beverage processing, which provided theoretical support for the effective breeding of Macadamia varieties and the high value utilization of Macadamia amino acid quality.

Key words: Macadamiaternifolia germplasm, amino acid composition, hierarchical cluster analysis, orthogonal partial least squares discrimination analysis

摘要:

为了解不同澳洲坚果种质与其果仁氨基酸组分间的关系,筛选适合功能性氨基酸饮料加工的澳洲坚果品种,选取10株澳洲坚果优良种质的果实,对其果仁的氨基酸组成及含量进行测定,通过系统聚类分析(hierarchical cluster analysis,HCA)和正交偏最小二乘-判别法(orthogonal partial least squares discrimination analysis,OPLS-DA)等对不同澳洲坚果种质的果仁氨基酸品质特征展开分析评价。结果表明,澳洲坚果氨基酸种类齐全,Glu、Arg、Met在不同种质间具有显著差异;聚类分析将10份澳洲坚果种质划分为2类,其中,第Ⅱ类包含6份澳洲坚果种质,其果仁氨基酸综合品质较好。OPLS-DA表明构建的模型准确可靠,并找到了2类间差异显著的特征性氨基酸组分,进一步证明第Ⅱ类种质果仁的氨基酸综合品质较好,尤其Glu、Arg两种药效氨基酸含量相对较高,可用于选育适合功能性氨基酸饮料加工的种质资源,为优质澳洲坚果的选育以及澳洲坚果氨基酸的高值化利用提供了理论支撑。

关键词: 澳洲坚果种质, 氨基酸组成, 系统聚类分析, 正交偏最小二乘-判别法

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