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Analysis Of Flavor And Other Metabolites In Lemon Juice (Citrus Limon) From Huanglongbing-Affected Trees Grafted On Different Rootstocks, Laura Reuss, Shi Feng, Wei-Lun Hung, Qibin Yu, Frederick G. Gmitter Jr, Yu Wang

Journal of Food and Drug Analysis

Flavor perception integrates sensory input from chemical receptors triggered by taste- and aroma-active metabolites to contribute to food flavor quality. Many factors alter flavor quality. Disease affects aroma and flavonoid constituents, causing off-flavors in plants. Huanglongbing (HLB) disease negatively affects citrus, although lemons are more tolerant. Lemon juice quality of HLB-affected fruits is not well studied. Lemon juice aroma-active compounds were profiled in this study using gas chromatography/mass spectrometry-olfactometry, and other metabolites contributing to overall flavor quality were investigated. Lemon juice from different rootstocks was discriminated using the metabolic profile. Flavor and other lemon juice metabolites also distinguished symptomatic from …