Bioactive Compounds in Cherry Tomatoes (solanum Lycopersicum Var. Cerasiforme): Cultivation Techniques Classification by Multivariate Analysis.
Food chemistry(2021)
摘要
This study aimed to assess bioactive compounds contents in cherry tomatoes and classify samples according to cultivation techniques. Simple and cost-effective analyses were conducted on 128 samples cultivated using hydroponic, organic, and conventional practices. An HPLC-FD method was validated in-house for eight biogenic amines while antioxidants were evaluated using total phenolic content and anti-radical activity assays (DPPH• and ABTS•+ assays). Chemometric evaluation was applied to extrapolate significant information from data-sets. Variable selection using correlation matrix and the Fisher test was performed. Principal component analysis and linear discriminant analysis were used to construct a mathematical model to classify samples. Correct classifications were achieved in training (95.2%), validation (98.5%), and testing (100%). The results showed that cherry tomatoes cultivated using different techniques could be discriminated based on bioactive profiles using chemometric approaches.
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关键词
Biogenic amines,Cherry tomatoes,Hydroponic,Organic,PCA,LDA
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