Phytochemicals and Biological Properties of Azorean Camellia sinensis Black Tea Samples from Different Zones of Tea Plantation

Plants, Journal Year: 2025, Volume and Issue: 14(1), P. 103 - 103

Published: Jan. 2, 2025

Camellia sinensis tea has received considerable attention due to its beneficial effects on health, particularly antioxidant properties that are affected by several factors, which have a high influence the final quality of black tea. The objective this study was investigate biological Azorean C. from five different zones plantation in order select specific areas cultivate rich targeted compounds human health. free radical scavenging activity (FRSA), ferric reducing power (FRAP), ferrous ion chelating (FIC) activities, total phenolic content (TPC), flavonoid (TFC), and tannins were determined colorimetric methods, catechin theaflavin contents analyzed high-pressure liquid chromatography. results indicated samples Zone E (341 m above sea level) presented higher values FRSA (EC50 = 7.22 µg/mL), FRAP 9.06 FIC activities (79.83%) phenolics (264.76 mg GAE/g DE) almost all catechins. For TFC, very similar between zones, for theaflavins content, A showed best levels, followed E. In general, these clearly highlight altitude plays significant role enhancing certain tea, thereby influencing quality.

Language: Английский

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Ice Sonication–Assisted Enzymatic Extraction of Kangra Orthodox Tea: Impact on Bioactive Profile, Tea Cream Formation, and Organoleptic Quality

Food and Bioprocess Technology, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 22, 2025

Language: Английский

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Tea leaf exosome-like nanoparticles (TELNs) improve oleic acid-induced lipid metabolism by regulating miRNAs in HepG-2 cells

Bioresources and Bioprocessing, Journal Year: 2025, Volume and Issue: 12(1)

Published: Feb. 10, 2025

Abstract Tea is a widely consumed beverage globally, but the tea industry faces significant waste management challenge. In this study, we developed leaf exosome-like nanoparticles (TELNs) with an average size of 274 ± 24.7 nm and zeta potential -20.6 0.78 mV, using polyethylene glycol (PEG) 6000 precipitation followed by ultracentrifugation. Structural analysis confirmed that TELNs are composed lipids, proteins, RNAs. vitro assays on HepG-2 cells revealed non-toxic at concentrations up to 300 µg/mL can be efficiently internalized. exhibited antioxidant capacity were able significantly ameliorate H 2 O -induced oxidative stress, increase viability reduce accumulation ROS in Hepg-2 cells. Notably, alleviated OA-induced lipid metabolic disorders hepatocellular injury. Further molecular downregulated expression miR-21-5p, miR-17-3p, miR-107, leading upregulation their target genes PPARα, CYP7A1, CPT-1A, which contributed improvement metabolism. This study first demonstrate metabolism regulation TELNs, providing new insights into underlying mechanisms helping develop therapeutic strategies for metabolism-related diseases. Furthermore, it expands scope use helps reuse residues. Graphical

Language: Английский

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Effects of Polyphenols in Different Teas on Physicochemical Characteristics of Egg White Protein Gel During Tea Eggs Making

Food Biophysics, Journal Year: 2024, Volume and Issue: 19(3), P. 627 - 636

Published: April 1, 2024

Language: Английский

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The Applications of Plant Polyphenols: Implications for the Development and Biotechnological Utilization of Ilex Species

Plants, Journal Year: 2024, Volume and Issue: 13(23), P. 3271 - 3271

Published: Nov. 21, 2024

Plants belonging to the

Language: Английский

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Exploratory studies of tea seed & tea fruit shell (Camellia sinensis (L) O. Kuntze for their value addition

Industrial Crops and Products, Journal Year: 2024, Volume and Issue: 219, P. 119086 - 119086

Published: July 9, 2024

Language: Английский

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