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... Phytochemical investigation of the MeOH extract of Angelica polymorpha stem led to the isolation of a new chromone (compound 9, named polymorphachromic acid). Based on various spectral analyses, including CD spectrum, the structure of the newly identified compound was deduced to be (7S)-5,7-dihydroxy-8,8-dimethyl-4-oxo-6,7-dihydro-4H,8H-pyrano[3,2-g]chromene-2-carboxylic acid. ...
... Nineteen diterpene alkaloids were isolated from Aconitum episcopale Levl. by phytochemical methods, including seventeen aconitine-type C₁₉-diterpenoid alkaloids (1–17) and two bis-diterpenoid alkaloids (18–19). Their structures were determined by NMR analysis and comparison with the reported data. Among them, eleven compounds (2, 4–5, 7–8, 10–11, 16–19) were isolated from this species for the firs ...
phytochemicals, etc ; chemical defenses; herbivores; India; Show all 4 Subjects
Abstract:
... Gall-inducing insects are highly specialized in modifying phenotypes in their hosts. Phytochemical manipulations in galling sites induce tissue growth and differentiation and also refurbish defense response in plant against herbivore infestation. Therefore, plant–herbivore interaction coevolves and gives rise to a chemical arms race by employing refined chemical defense and detoxification mechanis ...
phytochemicals, etc ; hydrogels; polysaccharides; wound treatment; Show all 4 Subjects
Abstract:
... Development of an ideal wound dressing with effective function for healing various types of wounds is the ultimate desire of the researchers. Natural-based compounds such as polysaccharides and phytochemicals offer useful properties making them perfect candidates for wound management. Polysaccharides-based hydrogels with an interconnected three-dimensional network, and desired properties have grea ...
phytochemicals, etc ; bioactive properties; biogenesis; chemistry; Show all 4 Subjects
Abstract:
... Canthin-6-one alkaloids have been a topic of research in many phytochemical and pharmacological laboratories because they are a structurally unique and biologically intriguing family. This review summarizes the diversity, biogenesis, chemistry and bioactivity of canthin-6-ones. ...
phytochemicals, etc ; Kaempferia; diterpenoids; traditional medicine; Show all 4 Subjects
Abstract:
... Kaempferia marginata rhizomes are used as an herb in food and as traditional medicine for the treatment of inflammatory-related diseases in Asian countries. In contrast to the previously reported phytochemical investigation of Thai and Chinese K. marginata rhizomes, which demonstrated the presence of sandaracopimaradiene and ent-sandaracopimaradiene, our first investigation of Vietnamese K. margin ...
phytochemicals, etc ; climate; human health; medicinal plants; Show all 4 Subjects
Abstract:
... INTRODUCTION: Medicinal plants are very important to human health, and ensuring their quality and rapid evaluation are the current research concerns. Deep learning has a strong ability in recognition. This study extended it to the identification of medicinal plants from the perspective of spectrum. OBJECTIVE: In order to realise the rapid identification and provide a reference for the selection of ...
phytochemicals, etc ; bioprocessing; energy; plant extracts; solvents; Show all 5 Subjects
Abstract:
... A critical investigation on the fabrication of metal oxide nanoparticles (NPs) such as ZnO, SnO₂, and CeO₂ NPs synthesized from green and phytogenic method using plants and various plant parts have been compiled. In this review, different plant extraction methods, synthesis methods, characterization techniques, effects of plant extract on the physical, chemical, and optical properties of green syn ...
phytochemicals, etc ; Curcuma zedoaria; acarbose; spectral analysis; Show all 4 Subjects
Abstract:
... A phytochemical investigation of the rhizomes of Curcuma zedoaria was carried out, leading to the isolation of a new diphenylheptanoid, zedoaroxane A (1), together with four known compounds (2–5). Their structures were elucidated based on NMR spectroscopic data. All isolated compounds possessed α-glucosidase inhibitory activity, with the IC₅₀ values ranging from 35.2 to 89.0 µM, more potent than t ...
phytochemicals, etc ; Salvia officinalis; food chemistry; sage; Show all 4 Subjects
Abstract:
... In light of large scale production of Salvia officinalis L. and its complex storage and delivery chain, the efficient preservation process is required. At this moment, the most popular preservation method is drying, therefore a comprehensive experiment to evaluate the influence of multiple drying techniques on sage was conducted. Convective drying at 40, 50 and 60 °C, vacuum-microwave drying with ...
phytochemicals, etc ; Parmotrema; lichens; mass spectrometry; research; Show all 5 Subjects
Abstract:
... Further phytochemical investigation on P. tsavoense led to one new meta-depsidone, parmosidone K together with one known compound, barbatic acid. Their structures were determined by 1D and 2D NMR analysis, high resolution mass spectroscopy, and comparison their NMR data with those reported in literatures. Parmosidone K was evaluated for α-glucosidase inhibition and revealed the powerful activity w ...
phytochemicals, etc ; antioxidant activity; carbon dioxide; liquids; roots; Show all 5 Subjects
Abstract:
... Roots and rhizomes of Asparagus stipularis Forssk were separately extracted using supercritical CO₂ extraction (SCCO2) and pressurized liquid extraction (PLE) and their Total Phenols Content and antioxidant potential was investigated. The results indicated that the roots and rhizomes are a potential source of natural antioxidants. The PLE method gave better extraction yields than SFE and its fract ...
phytochemicals, etc ; Xanthium strumarium; chemotaxonomy; ecology; spectral analysis; Show all 5 Subjects
Abstract:
... A phytochemical investigation on the fruits of Xanthium sibiricum Patrin ex Widder led to the isolation of twenty compounds. Their structures were elucidated by comparison with relevant spectroscopic data. To the best of our knowledge, compounds 3, 7, 13–15 were isolated from the family Compositae for the first time. Compounds 2, 4, 8, 20, along with compounds 11, 12, 16, 17 were firstly reported ...
phytochemicals, etc ; liquid chromatography; metabolites; pharmacokinetics; traditional medicine; Show all 5 Subjects
Abstract:
... Guizhi-Fuling capsule (GZFL), a well-known herbal remedy, has been widely used to treat primary dysmenorrhea (PD). Hence, systematic identifying multiple active ingredients and the involved mechanism is essential and urgently needed for GZFL. Aim of the study: This study was planned to assess the pharmacokinetics of GZFL in rats, and identify whether these GZFL-derived absorbed components (ACs) co ...
phytochemicals, etc ; Fissistigma; chemotaxonomy; ecology; sesquiterpenoids; spectral analysis; Show all 6 Subjects
Abstract:
... The phytochemical investigation of the stems of Fissistigma retusum (H.Lév.) Rehder led to the isolation of a new phenolic derivative methyl 3-hydroxy-2,4- dimethoxybenzoate (1), together with three known phenolic derivatives (2–4) and five know sesquiterpene derivatives (5–9), 2,3,4-trihydroxybenzoic acid (2), isovanillic acid (3), 3,4-dihydroxybenzoic acid (4), (+)-dehydrololiolide (5), (E)-4-(r ...
phytochemicals, etc ; Dendrobium; chemotaxonomy; ecology; naphthalene; phenanthrenes; sterols; Show all 7 Subjects
Abstract:
... Phytochemical investigation of Dendrobium lindleyi Stendel led to the isolation of one undescribed naphthalene, dendrolene A (1), together with eight known bibenzyls (2-9), six known phenanthrenes (10–15), one sterol (16), one p-hydroxyphenylpropionic methyl ester (17) and one dihydroconiferyl dihydro-p-cumarate (18). Structure elucidation of these isolates was performed based on MS, 1D and 2D NMR ...
phytochemicals, etc ; Litsea; chemotaxonomy; ecology; monoterpenoids; norisoprenoids; sesquiterpenoids; Show all 7 Subjects
Abstract:
... Phytochemical investigation into the fruits of Litsea lancilimba Merr. led to the isolation of eleven compounds, including six sesquiterpenoids (1–6), three monoterpenoids (7–9), and two norisoprenoids (10–11). The occurrence of compounds 2–3, 6–9 in Lauraceae family have been reported for the first time. The structures of these compounds were elucidated by comprehensive spectral methods, includin ...
Francisco Lucas Chaves Almeida; Emanuel Neto Alves de Oliveira; Elisândra Costa Almeida; Weysser Felipe Cândido de Souza; Mariana de Oliveira Silva; Anely Maciel de Melo; Maria Paula Jiménez Castro; Giovanna Totti Bullo; Laís Costa Luna; Ana Silvia Prata; Marcus Bruno Soares Forte
phytochemicals, etc ; Hancornia speciosa; fruit growing; gastronomy; Brazil; Show all 5 Subjects
Abstract:
... Brazil has a great diversity of exotic, native, and tropical fruits with great potential to be explored, such as mangaba (Hancornia speciosa). However, there is little knowledge about these fruits, their nutritional benefits, and their sensory attributes. In view of the technological potential of mangaba, with its high production (up to 12 ton/ha) and its rich bioactive composition, interesting fo ...
phytochemicals, etc ; Aquilaria sinensis; chemotaxonomy; cytotoxicity; ecology; sesquiterpenoids; wood; Show all 7 Subjects
Abstract:
... Aquilaria sinensis (Lour.) Spreng. (Thymelaeaceae family), is the fragrant resin-infused wood derived from the wounded trees of Aquilaria species. With years of studies, phytochemical investigations on A. sinensis have been proven to possess various chemical constituents which contained sesquiterpenes and 2-(2-phenylethyl) chromone derivatives as two classes of characteristic compounds. As the med ...