Results 51 to 60 of about 17,968 (192)

17‐epi‐Melianodiol, a new protolimonoid from Melia azedarach fruits, exhibits larvicidal activity and is associated with oxidative imbalance and midgut epithelial damage in Aedes aegypti larvae

Pest Management Science, Volume 82, Issue 9, Page 9240-9248, September 2026.
The bio‐guided phytochemical study resulted in the new compound 17‐epi‐melianodiol. The compound eliminated 100% of Aedes aegypti larvae at 100 ppm, causing pronounced morphological changes, cuticular damage, and extensive vacuolization. Abstract BACKGROUND In Brazil, Aedes aegypti is the primary vector of arboviruses such as dengue, chikungunya ...
Kethleen Duarte Crespo Soares, Thalya Soares Ribeiro Nogueira, Maria Aparecida Aride Bertonceli, Renata Rodrigues da Silva Robaina, Leticia Oliveira da Rocha, Francisco José Alves Lemos, Kátia Valevski Sales Fernandes, Raimundo Braz‐Filho, Ivo José Curcino Vieira   +8 more
wiley   +1 more source

From Waste to Value: Solubility and Dissolution Enhancement of Bioactive Extracts from Olive Leaves Using Poloxamers

Molecules
The European Union, producing over 2.5 billion tons of waste annually, has prompted the European Parliament to implement legal measures and encourage the shift towards a circular economy. Millions of tons of biowaste from olive plant leaves are generated
Muhammad Wasim, Maria Camilla Bergonzi
doaj   +1 more source

Decoding chemical profiles in insect‐induced gall development: Insights from Phacopteron lentiginosum–Garuga pinnata interactions

Entomological Science, Volume 29, Issue 3, September 2026.
Analysis of volatile and non‐volatile metabolites across three developmental stages (3rd, 4th and 5th instar nymphal stages) of leaf galls induced by Phacopteron lentiginosum on Garuga pinnata revealed that the 3rd stage exhibited the highest chemical diversity and concentration followed by 4th and 5th stages.
V. K. Bobika, M. Nasser, K. S. Shameer
wiley   +1 more source

Characterization of functional metabolites in broccoli by‐product using green extraction with supercritical fluids

Journal of the Science of Food and Agriculture, Volume 106, Issue 11, Page 6789-6799, 30 August 2026.
Abstract BACKGROUND The present study aimed to valorize broccoli by‐products (leaves and stems) through the extraction of bioactive compounds using supercritical fluid extraction (SFE). The influence of broccoli variety, plant part and maturation stage on total phenolic content (TPC), antioxidant activity and antimicrobial properties was evaluated ...
Iris Gudiño, Rocío Casquete, María José Benito, María de Guía Córdoba, María Henar Prieto, Alberto Martín   +5 more
wiley   +1 more source

CGAR E CGAR-EM na análise dos constituintes químicos isolados do extrato hexanico de Sebastiania argutidens (Euphorbiaceae) HRGC and HRGC-MS in the analysis of the chemical constituents isolated from hexanic extract of Sebastiania argutidens (Euphorbiaceae)

Química Nova, 2002
The fractionation column with SiO2 of the hexane extract of Sebastiania argutidens (Euphorbiaceae) yielded fractions containing hydrocarbons, carboxylic acids, sterols and pentacyclic triterpenes.
Alexsandro Branco, Moacir G. Pizzolatti
doaj   +1 more source

Sulfated Cyclocarya Paliurus Polysaccharide Sorchestrates the Gut Microbiome to Mobilize a Host‐Derived 12‐HEPE Against Ulcerative Colitis

Advanced Science, Volume 13, Issue 44, 7 August 2026.
A sulfated polysaccharide (SCP) from Cyclocarya paliurus alleviates ulcerative colitis by reshaping the gut microbiome. This remodeled microbiota orchestrates the upregulation of the host‐derived lipid 12‐HEPE, which directly inhibits the TLR4/NF‐κB pathway to suppress inflammation.
Xianxiang Chen, Mingyue Shen, Rui Zhang, Zhibing Huang, Hui Niu, Qiang Yu, Yi Chen, Xiangwen Pan, Liyuan Rong, Huiliang Wen, Jun Yang, Jianhua Xie   +11 more
wiley   +1 more source

Phytochemical studies of the herb, Tragopogon orientalis L. (Asteraceae). 1. The components of a petroleum ether extract

Acta Societatis Botanicorum Poloniae, 2014
Hydrocarbons, aliphatic alcohols, triterpenes and sterols were shown to occur in the herb, Tragopogon orientalis L. The following were obtained in crystalline form: n-triacontan, hexacosanol, (β-amyrin and lupeol.
Tadeusz Krzaczek, Helena D. Smolarz
doaj   +1 more source

Lippia umbellata Cav.: Chemical Composition, Insecticidal, and Antimicrobial Activities

Chemistry &Biodiversity, Volume 23, Issue 8, August 2026.
Hexane extracts of Lippia umbellata leaves and flowers contain lupenone, α‐amyrin, and hentriacontane. They exhibit insecticidal activity against Drosophila melanogaster and inhibit AChE in vitro and in silico. Furthermore, the extracts can inhibit the growth of medically important bacteria and yeasts, including multidrug‐resistant strains.
José Guillermo Avila‐Acevedo, Miriam Arlette López‐Pérez, Ana Karen Villagómez‐Guzmán, Edgar Antonio Estrella‐Parra, Nallely Álvarez‐Santos, Israel Valencia‐Quiroz, Julieta Orozco‐Martínez, Ma. Edith López‐Villafranco, Silvia Aguilar‐Rodríguez, Carlos Leonardo Céspedes‐Acuña, Juio Alarcón‐Enos, Ana María García‐Bores   +11 more
wiley   +1 more source

Dietary Terpenoids in Advancing Biofilm‐Mediated Cancer Prevention: Antibiofilm Cascade, Molecular Crosstalk, and Nano‐Facilitated Functional Delivery

Cell Biochemistry and Function, Volume 44, Issue 8, August 2026.
ABSTRACT The role of microbes in cancer is gaining attention these days, especially in the context of tumor‐associated biofilms and dysbiotic microbiota. Biofilm‐producing microorganisms, such as Fusobacterium nucleatum and Helicobacter pylori, trigger oncogenic inflammation and immune evasion in tumor initiation and progression, and in the development
Saikat Mazumder, Aditi Dey, Debasmita Bhattacharya, Dibyajit Lahiri, Moupriya Nag, Sudhriti Maity, Navin Kumar, Soumya Pandit, Vaseem Raja, Shubham Sharma, Shashi Prakash Dwivedi, Mithul Rajeev, Juwita Ratna Dewi, Lola Sanayeva, Dilbar Azimova   +14 more
wiley   +1 more source

Constituintes químicos de Hyptidendron canum (Pohl ex Benth.) R. Harley (Lamiaceae)

Química Nova, 2011
Chemical investigation of Hyptidendron canum stems resulted in the isolation of betulinic, ursolic and euscaphic acids. From the leaves were isolated 3β-O-β-galactopiranosilsitosterol, ursolic aldehyde, and mixtures of maslinic acid and 2α-hydroxyursolic
Geralda de Fátima Lemes, Pedro Henrique Ferri, Márcia Nasser Lopes   +2 more
doaj   +1 more source