Fatty Acid Profile-Based Chemometrics to Differentiate Metabolic Variations in Sorghum

Fatty Acid Profile-Based Chemometrics to Differentiate Metabolic Variations in Sorghum
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基于脂肪酸谱的化学计量学区分高粱的代谢变化

DOI:
10.1021/acsfoodscitech.1c00320
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发表时间:
2021
期刊:
ACS Food Science & Technology
影响因子:
--
通讯作者:
McDonald, Armando G.
McDonald, Armando G.
中科院分区:
--
文献类型:
--
作者:
Mengistie, Endalkachew;Alayat, Abdulbaset M.;Sotoudehnia, Farid;Bokros, Norbert;DeBolt, Seth;McDonald, Armando G.

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对Della和RED forGREEN(RG)甜高粱品种在两个不同季节的浸出物含量和脂肪酸谱进行了评价。用CH 2Cl 2定量提取茎节和节间。提取物转化为脂肪酸甲酯(FAME)衍生物,并通过气相色谱-质谱(GCMS)进行分析。检出的主要脂肪酸为壬二酸(C9:0)、月桂酸(C12:0)、肉豆蔻酸(C14:0)、棕榈酸(C16:0)、棕榈油酸(C16:1)、硬脂酸(C18:0)、油酸(C18:1)、亚油酸(C18:2)和二十烷酸(C20:1)。以脂肪酸作为品种的化学指标,采用主成分分析(PCA)和线性判别分析(LDA)等多元分析方法,对品种的代谢变异进行了评价。LDA允许区分德拉和RG品种具有较高的预测精度,这表明它们之间的代谢变化。高预测能力表明使用脂肪酸组成作为指纹来揭示代谢变化。
The extractive content and fatty acid profiles of Della andREDforGREEN(RG) sweet Sorghum varieties grown in two different seasons have been evaluated. The stalk internodes and nodes were quantitatively extracted with CH2Cl2. The extracts were converted to their fatty acid methyl ester (FAME) derivatives and analyzed by gas chromatography-mass spectrometry (GCMS). The main fatty acids detected were azelaic (C9:0), lauric (C12:0), myristic (C14:0), palmitic (C16:0), palmitoleic (C16:1), stearic (C18:0), oleic (C18:1), linoleic (C18:2), and eicosanoic acids (C20:1). Fatty acids were considered as chemical descriptors of varieties to evaluate metabolic variations, where principal component analysis (PCA) and linear discriminant analysis (LDA) multivariate analysis methods were applied. LDA allowed discrimination between Della and RG varieties with higher prediction accuracy, suggesting metabolic variations between them. The high predictive power suggests the use of a fatty acid composition as a fingerprint to reveal metabolic variations.
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