The study's objective was to investigate the volatile compounds, assess the total phenolic content and phenolic acids profile, determine the antioxidant capacity and evaluate the anthocyanin and flavonoid contents in stinging nettle (Urtica dioica L.), tansy (Tanacetum vulgare L.), bladder campion (Silene vulgaris (Moench) Garcke) and rosehip fruit (Rosa canina L. cv. Plovdiv 1). The total phenolic content ranged from 0.55±0.00 to 47.39±0.41 mg GAE/g dw, total flavonoids ranged from 0.45±0.02 to 17.27±0.45 mg QЕ/g dw and the total anthocyanins ranged from 0.94±0.23 to 58.11±2.85 mg/L. The results demonstrated that the selected research plants show auspiciously useful properties in fields like pharmacy, food preparation, cosmetics, etc. Furthermore, the most promising extraction methods in terms of bioactivity are decoction and tincture (U. dioica; T. vulgare; S. vulgaris) and tincture (R. canina). The current study could be regarded as a first detailed investigation of the biological activity and phytochemical composition of R. canina L. cv. Plovdiv 1.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1515/znc-2018-0122 | DOI Listing |
ACS Sens
January 2025
Department of Surgery, Division of Pediatric Surgery, Indiana University School of Medicine, Indianapolis, Indiana 46202, United States.
Necrotizing enterocolitis (NEC) is a devastating disease of the neonatal gastrointestinal tract. Volatile organic compounds (VOCs), odoriferous compounds released as a byproduct of bacterial metabolism, can be used as a proxy for gut health. We hypothesized that patients with NEC would have different microbial profiles and elicit different VOC signatures as assessed by gas chromatography/mass spectrometry (GC/MS) or an electronic nose compared to controls.
View Article and Find Full Text PDFPhys Chem Chem Phys
January 2025
Radiochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai-400085, India.
The precise identification of various toxic gases is important to prevent health and environmental hazards using cost-effective, efficient, metal oxide-based chemiresistive sensing methods. This study explores the sensing properties of a chemiresistive sensor based on a ZnSnO-SnO microcomposite for detecting -butanol vapours. The microcomposite, enriched with oxygen vacancies, was thoroughly characterized, confirming its structure, crystallinity, morphology and elemental composition.
View Article and Find Full Text PDFACS EST Air
January 2025
Department of Chemistry, University of Colorado Boulder, Boulder, Colorado 80309, United States.
Wildfires at the wildland-urban interface (WUI) have been increasing in frequency over recent decades due to increased human development and shifting climatic patterns. The work presented here focuses on the impacts of a WUI fire on indoor air using field measurements of volatile organic compounds (VOCs) by Proton-Transfer-Reaction Time-of-Flight Mass Spectrometry (PTR-TOF-MS). We found a slow decrease in VOC mixing ratios over the course of roughly 5 weeks starting 10 days after the fire, and those levels decreased to ∼20% of the initial indoor value on average.
View Article and Find Full Text PDFEnviron Sci Atmos
January 2025
Université Claude Bernard Lyon1, CNRS, IRCELYON, UMR 5256 69100 Villeurbanne France.
While photochemical aging is known to alter secondary organic aerosol (SOA) properties, this process remains poorly constrained for anthropogenic SOA. This study investigates the photodegradation of SOA produced from the hydroxyl radical-initiated oxidation of naphthalene under low- and high-NO conditions. We used state-of-the-art mass spectrometry (MS) techniques, including extractive electrospray ionization and chemical ionization MS, for the in-depth molecular characterization of gas and particulate phases.
View Article and Find Full Text PDFFood Chem X
January 2025
Institute of Pomology, Jiangsu Key Laboratory for Horticultural Crop Genetic Improvement, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu 210014, China.
Strawberries are valued for their aroma, which is mainly determined by volatile organic compounds (VOCs). Wild strawberries, with broader and more intense VOC profiles, are especially important in breeding programs. Using HS-SPME-GC-MS, 126 VOCs were identified in the ripe fruit of 22 cultivars from four wild strawberry species.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!