Rich in antioxidants with a variety of flavones and anthocyanins, passionflower/fruit has been extensively used in food, beverage, medicinal, and natural dyes industries. The individual components present in passionflower are identified by extracting them in methanol, partitioning them between ethyl acetate and aqueous layers, and recording their ESI mass spectrometric data. The steady-state absorption and fluorescence spectra of the extract in methanol and dimethyl sulfoxide are recorded and the lifetime of the fluorescing species is reported. The pH dependence of the absorption spectrum confirms the presence of the anthocyanins.
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http://dx.doi.org/10.1111/php.13893 | DOI Listing |
Food Res Int
January 2025
Division Quality and Sensory of Plant Products, Georg-August-Universität Göttingen, Carl-Sprengel-Weg 1, 37075 Göttingen, Germany. Electronic address:
Phenolic compounds are known for their health-promoting effects on humans. Pak choi (Brassica rapa ssp. chinensis) and Swiss chard (Beta vulgaris subsp.
View Article and Find Full Text PDFFront Nutr
December 2024
College of Horticulture, Xinjiang Agricultural University, Urumqi, China.
The application of plant growth regulators is an effective method to enhance flavonoid content in certain fruits; however, there is limited research comparing the effects of different plant growth regulators. This study evaluated the impact of pre-harvest application with melatonin, 24-epibrassinolide, and methyl jasmonate on flavonoid content in blueberry fruit. All three plant growth regulators increased the total polyphenol content, total flavonoid content, antioxidant capacities, and the activities of key enzymes involved in flavonoid biosynthesis, including flavone synthase, flavanone 3-hydroxylase, flavonol synthase, anthocyanidin synthase, and leucoanthocyanidin reductase.
View Article and Find Full Text PDFJ Asthma
January 2025
Pediatric Department, The Affiliated LiHuiLi Hospital of Ningbo University, Ningbo, Zhejiang, China.
Curr Issues Mol Biol
December 2024
College of Landscape Architecture and Horticulture, Yunnan Agricultural University, Kunming 650201, China.
is an important medicinal plant, rich in flavonoid, with various pharmacological activities such as stomachic and antioxidant properties. In this study, we integrated metabolome and transcriptome analyses to reveal metabolite and gene expression profiles of both green (GDd) and purple-red (RDd) of semi-annual and annual stems. A total of 244 flavonoid metabolites, mainly flavones and flavonols, were identified and annotated.
View Article and Find Full Text PDFBMC Gastroenterol
December 2024
Department of Gastroenterology, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, Zhejiang, 318000, China.
Background: Dietary adjustment has consistently been regarded as an effective and health way for both the prevention and treatment of constipation. Several researches suggest a significant correlation between dietary flavonoids intake and gut microbiota, while the relationship between dietary flavonoids and constipation has not been reported. The objective of this study is to investigate the relationship between flavonoids intake and constipation.
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