Glycyrrhiza glabra cultivation and harvesting produces substantial quantities of aerial parts as waste. With the aim to prospect an innovative valorization of these byproducts, the aerial parts were harvested in May and October and analyzed for their chemical profile, antioxidant properties, and effects on viability of five cancer cell lines. Pinocembrin was the main constituent. A significant protection of lipid peroxidation was observed with the May total extract (IC of 4.2 ± 0.4 μg/mL at 30 min of incubation). The effects on viability of HeLa, MCF-7, MDA-MB-231, Caco-2, and PC3 human cancer cells were investigated. All samples shown a remarkable activity with IC values below 25 μg/mL. Samples from plants harvested in May exhibited greater activity than those harvested in October. MCF-7 and HeLa were the most sensitive cells with IC in the range 2.73-3.01 and 3.28-5.53 μg/mL, respectively. G. glabra aerial parts represent a good source of valuable products.
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http://dx.doi.org/10.1021/acs.jafc.7b03045 | DOI Listing |
Anal Chem
January 2025
State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
Quaternary ammonium salts (QAs) are a class of highly active compounds widely used in medicine and agriculture. However, many QAs lack a conjugated system, making their recognition and quantitation challenging. Stachydrine is a representative unconjugated QA with a high content in Houtt.
View Article and Find Full Text PDFSci Rep
December 2024
Department of Horticultural Sciences, Faculty of Agriculture, Urmia University, Urmia, Iran.
In this study, screening of the collected 70 Salvia nemorosa L. populations from 54 habitats from West Azerbaijan province, Iran was evaluated by analyzing the content of phytochemical compounds, antioxidant activity, and UHPLC-HRMS profiling in different populations. The aerial parts of the plants were analyzed based on total phenolic (TPC) and flavonoid (TFC), total tannin (TTC), ascorbic acid (AAC), chlorophylls (Cla, and Clb), total carotenoid (TCC), β-carotene, antioxidant activity (by DPPH and FRAP assays), and 40 polyphenolic compounds by UHPLC-HRMS (phenolic acids, flavonoids and fatty acyl glicosides).
View Article and Find Full Text PDFToxicol Rep
December 2024
Department of Biochemistry and Molecular Biology, Theodor Bilharz Research Institute, Kornish El-Nile, Warrak El-Hadar, Giza 12411, Egypt.
Background: Due to their variability and safety, widespread research on phytochemicals continually encourages researchers to study various plants for their potential health benefits.
Objectives: This study aims to explore the phytochemical constituents of the aerial parts of three spp.; , and existed in Egyptian nature using GC-MS analysis and studying their different biological activities in correlation to computational analysis.
Sci Rep
December 2024
School of Automation Science and Electrical Engineering, Beihang University, Beijing, 100191, China.
A novel adaptive model-based motion control method for multi-UAV communication relay is proposed, which aims at improving the networks connectivity and the communications performance among a fleet of ground unmanned vehicles. The method addresses the challenge of relay UAVs motion control through joint consideration with unknown multi-user mobility, environmental effects on channel characteristics, unavailable angle-of-arrival data of received signals, and coordination among multiple UAVs. The method consists of two parts: (1) Network connectivity is constructed and communication performance index is defined using the minimum spanning tree in graph theory, which considers both the communication link between ground node and UAV, and the communication link between ground nodes.
View Article and Find Full Text PDFPhytochemistry
December 2024
Henan Province Hospital of Traditional Chinese Medicine, No. 6, Dongfeng Road, Jinshui District, Zhengzhou City, Henan Province, 450002, China. Electronic address:
Five phenylpropanoid dimers chrysanthephenyls A-E, with the 1-O-1'-type (1) and 1-O-2'-type (2-5) ether bond linking modes, were isolated from the aerial parts of Chrysanthemum indicum. Among them, chrysanthephenyls D and E were two pairs of enantiomers, and chrysanthephenyl E was further resolved into its enantiomers (+)-chrysanthephenyl E and (-)-chrysanthephenyl E via chiral-phase HPLC. Their structures were characterized on the basic analysis of the spectroscopic techniques (IR, HRESIMS, 1D and 2D NMR), and their absolute configurations were determined by DP4+ NMR analysis and ECD calculation method.
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