Role of dietary tea polyphenols on growth performance and gut health benefits in juvenile hybrid sturgeon ()

Fish & Shellfish Immunology, Год журнала: 2023, Номер 139, С. 108911 - 108911

Опубликована: Июнь 30, 2023

Язык: Английский

---

Amelioration Effects and Regulatory Mechanisms of Different Tea Active Ingredients on DSS-Induced Colitis

Journal of Agricultural and Food Chemistry, Год журнала: 2023, Номер 71(44), С. 16604 - 16617

Опубликована: Окт. 25, 2023

The potential biological function of tea and its active components on colitis has attracted wide attention. In this study, different ingredients including polyphenols (TPPs), polysaccharides (TPSs), theabrownin (TB), theanine (TA) have been compared in the intervention dextran sulfate sodium (DSS)-induced mice. Specifically, TPP showed greatest effect since it reduced 60.87% disease activity index (DAI) to that DSS-induced group, followed by reduction 39.13% TPS 28.26% TB DAI, whereas there was no obvious alleviative TA colitis. TPP, TPS, could regulate composition abundance gut microbiota increase content short-chain fatty acids (SCFAs) enhance intestinal barrier function. Further evidence observed regulated activation Nrf2/ARE TLR4/MyD88/NF-κB P65 pathway alleviate Results cell experiments demonstrated antiapoptosis mitochondrial protective capability among via inhibiting Cytc/Cleaved-caspase-3 signaling pathway. summary, superior anticolitis is primarily attributed unique upregulation Akkermansia ability

Язык: Английский

---

Pure Epigallocatechin-3-gallate-Assisted Green Synthesis of Highly Stable Titanium Dioxide Nanoparticles

Materials, Год журнала: 2024, Номер 17(2), С. 275 - 275

Опубликована: Янв. 5, 2024

Nanoparticles (NPs) are conventionally produced by using physical and chemical methods that no longer in alignment with current society’s demand for a low environmental impact. Accordingly, green synthesis approaches considered potential alternative due to the plant extracts substitute some of hazardous reagents. The general mechanism is based on reducing power natural products allows formation NPs from precursor solution. In this context, our study proposes simple, innovative, reproducible approach titanium dioxide (TiO2 NPs) uses, first time, major component tea (Camellia sinensis)—epigallocatechin-3-gallate (EGCG), non-toxic, dietary, accessible, bioactive molecule. influence EGCG TiO2 was analyzed comparing physicochemical characteristics synthesized chemically obtained ones. bare performed hydrolysis isopropoxide distilled water, were same conditions, but presence 1 mM aqueous confirmed UV-VIS FTIR spectroscopy. SEM micrographs showed spherical particles relatively diameters. Our findings also revealed more stable colloids than However, phytocompound negatively influenced crystalline structure NPs. Furthermore, EGCG–TiO2 could become versatile choice applications extending beyond photocatalysis, including promising prospects biomedical field.

Язык: Английский

---

UPLC-ESI-MS/MS analysis revealed the dynamic changes and conversion mechanism of non-volatile metabolites during green tea fixation

LWT, Год журнала: 2024, Номер 198, С. 116010 - 116010

Опубликована: Март 30, 2024

Fixation is crucial for green tea quality; previous studies were conducted on finished teas and focused the volatile metabolites of tea. However, non-volatile metabolites' (NVMs) evolution formation mechanisms during fixation remain unclear. Here, fixated samples collected at seven different time points stage, dynamic changes NVMs investigated via ultra-performance liquid chromatography-tandem mass spectrometry enzymatic activity analyses. The results showed that contained thermal non-enzymatic stages. Moreover, 1196 (10 classes) detected, significant NVM variations observed "enzymatic thermal" stages, with increasing trends in lipids amino acids, except alkaloids. Furthermore, 160 common differential identified. KEGG analysis revealed unsaturated fatty acid, linoleic acid phenylpropanoid, flavonoid metabolism pathways essential influenced aroma, taste, color formation. These provide a theoretical basis to regulate technology enrich chemical theory processing.

Язык: Английский

---

An evaluative review on Stryphnodendron adstringens extract composition: Current and future perspectives on extraction and application

Industrial Crops and Products, Год журнала: 2022, Номер 187, С. 115325 - 115325

Опубликована: Июль 18, 2022

Язык: Английский

---