ArticleBMC plant biology2025
Insights into tobacco leaf quality deterioration under long-term storage by investigating dynamic phytochemical and metabolite profile variations.
Article in BMC plant biology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Cytological basis and key metabolite profiling of fresh tobacco leaves with different oiliness indices in Yunyan 87.Frontiers in plant science · 2026Article
- Synergistic effects of biochar andFrontiers in microbiology · 2026Article
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Authors and funding
12 authors.
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Abstract
backgroundStorage conditions affect the metabolome composition and quality of tobacco leaf and, therefore, its economic value. The present study was designed to reveal tobacco leaves' dynamic phytochemical and metabolite profile changes under three different storage conditions: natural (NT), mechanical (MC), and air-conditioning (AC). The 210,003 grade (Hubei Central Tobacco) was selected as the experimental material, and the changes in iodine value absorbance (IV), pH, polyphenols, plastid pigments, conventional chemical compositions, and metabolite profile were analyzed at different times (T0, starting day; T1, three months; T2, five months; and T3, nine months) during storage.
resultsThe IV significantly increased with the storage duration, while the pH, polyphenols, and stromal pigments had the opposite trends. Lutein, β-carotene, and chlorogenic acid were significantly less degraded under MC and AC than NT. Neoxanthin and chlorophyll b were completely degraded at T3. The nicotine, total sugar, reducing sugar, and chlorine content significantly varied along with the storage duration, reaching their maximum values at T2 under MC and AC. The sugar/base ratio at T3 under MC and AC was 8.53 and 8.44, respectively, higher than in NT (5.85). LC-MS-based untargeted metabolomics analysis identified 124‒224, 138‒180, and 110‒153 significant differential accumulated metabolites (DAMs) under NT, MC, and AC, respectively. Biosynthesis of secondary metabolites was significantly induced under the three storage conditions between T0 and T3. Glutathione metabolism and oxidative phosphorylation were induced under NT. Biosynthesis of terpenoids and steroids was highly induced under AC.
conclusionsOur findings may facilitate the optimization of the storage conditions for better preservation of tobacco leaves. CLINICAL TRIAL NUMBER: Not applicable.
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