The secondary metabolome of the representative Roseobacter, Phaeobacter inhibens, was examined in response to algal sinapic acid. In addition to roseobacticides, sinapic acid induced the production of two new natural products, roseochelin A and B, which were characterized by NMR and X-ray crystallography. Functional assays showed that roseochelin B binds iron and is algaecidal against the algal host Emiliania huxleyi. It appears to be produced by a rarely observed combination of nonenzymatic and enzymatic transformations.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1021/acs.orglett.7b02424 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Comparative analysis of antioxidant activity and content of (poly)phenolic compounds in cabernet sauvignon and merlot wines of Slovenian and Serbian vineyards.
Food Chem X
January 2025
University of Kragujevac, Institute for Information Technologies, Department of Science, Jovana Cvijića Bb, 34000 Kragujevac, Serbia.
The individual (poly)phenols of red wines cultivated in two different Western Balkan wine-growing regions were determined using the HPLC method, while the ABTS and DPPH tests were employed to investigate antioxidant activity. The reduction potential of antioxidants was determined by FRAP assay. Five distinct classes of phenolic compounds, including phenolic acids, flavan-3-ols, flavonols, stilbenes, and anthocyanins, were identified.
View Article and Find Full Text PDFThe Impact of Cooking on Antioxidant and Enzyme Activities in Ruichang Yam Polyphenols.
Foods
December 2024
Jiangxi Ecological Chemical Engineering Technology Research Center, Jiujiang University, Jiujiang 332005, China.
In this study, the total polyphenol content (TPC), total flavonoid content (TFC), and biological activity of yam polyphenols (including free phenolics, conjugated phenolics, and bound phenolics) were investigated during home cooking. Polyphenol components were preliminary detected in raw yam by HPLC, including 2, 4-dihydroxybenzoic acid, syringic acid, vanillic acid, 4-coumaric acid, and sinapic acid. TPC and TFC of soluble conjugated polyphenols were the main phenolic compounds in Ruichang yam.
View Article and Find Full Text PDFQuantitative Ethnobotany of Medicinal Plants from Darjeeling District of West Bengal, India, along with Phytochemistry and Toxicity Study of Buch.-Ham. ex D.Don bark.
Plants (Basel)
December 2024
Ethnopharmacology Laboratory, Department of Botany, Visva-Bharati University, Santiniketan 731235, West Bengal, India.
This study offers considerable information on plant wealth of therapeutic importance used traditionally by the residents of 11 villages under three subdivisions of Kurseong, Darjeeling Sadar, and Mirik in the Darjeeling District, West Bengal. For the acquisition of ethnomedicinal information, semi-structured interviews were conducted with 47 informants, of whom 11 persons were herbalists and 36 were knowledgeable persons. Free prior informed consent was obtained from each participant prior to the collection of field data.
View Article and Find Full Text PDFEffects of dietary hydroxy-cinnamic acid derivatives on growth, muscle, and intestinal parameters of Tilapia (Oreochromis niloticus).
Fish Physiol Biochem
January 2025
Key Laboratory for Animal Nutrition and Feed Science of Hubei Province, Wuhan Polytechnic University, Wuhan, 430000, China.
Hydroxycinnamic acid derivatives are a class of phenolic acid compounds, including sinapic acid, ferulic acid, and caffeic acid, which are widely found in plants. This experiment was conducted to study the effects of hydroxycinnamic acid derivatives (sinapic acid, ferulic acid, and caffeic acid) on the growth performance, muscle physical parameters, and intestinal morphology of tilapia. A total of 320 tilapia fingerlings (9.
View Article and Find Full Text PDFThe Bioprotective Effects of Marigold Tea Polyphenols on Obesity and Oxidative Stress Biomarkers in High-Fat-Sugar Diet-Fed Rats.
Cardiovasc Ther
January 2025
Centre for Natural Products Discovery, School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, James Parsons Building, Byrom Street, Liverpool L3 3AF, UK.
The research is aimed at exploring the potential of marigold petal tea (MPT), rich in polyphenol contents, against oxidative stress and obesity in a rat model following a high-fat-sugar diet (HFSD). The MPT was prepared through the customary method of decoction and was subjected to analysis for its polyphenol composition using reversed-phase high-performance liquid chromatography (RP-HPLC). Two specific doses of MPT, namely, 250 and 500 mg/kg body weight (BW), were chosen for the study-referred to as MPT-250 and MPT-500, respectively.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!