Results 51 to 60 of about 46,895 (288)

Eco‐Friendly Surfactants From Pithecellobium dulce: Extraction, Characterization and Surface Activity

open access: yesJournal of Surfactants and Detergents, EarlyView.
Schematic representation of the comprehensive analysis of saponins extracted form of Pithecellobium dulce (Roxb.) Benth. ABSTRACT The widespread use of synthetic surfactants in industrial and domestic applications has raised environmental concerns due to their biodegradability and ecological issues.
Susmita Gudulkar   +4 more
wiley   +1 more source

Three Triterpenes and a Triterpene Ferulate from Rhoiptelea chiliantha.

open access: yesChemical and Pharmaceutical Bulletin, 1998
Three new triterpenes and a new triterpene ferulate were isolated from the bark of Rhoiptelea chiliantha DIELS et HAND.-MAZZ.(Rhoipteleaceae). Their structures were elucidated on the basis of spectral and chemical evidence.
JIANG, Zhi-Hong   +3 more
openaire   +2 more sources

Upregulating the mevalonate pathway and repressing sterol synthesis in Saccharomyces cerevisiae enhances the production of triterpenes

open access: yesApplied Microbiology and Biotechnology, 2018
Pentacyclic triterpenes are diverse plant secondary metabolites derived from the mevalonate (MVA) pathway. Many of these molecules are potentially valuable, particularly as pharmaceuticals, and research has focused on their production in simpler and more
J. Bröker   +4 more
semanticscholar   +1 more source

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

open access: yesJournal of the Science of Food and Agriculture, EarlyView.
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   +5 more
wiley   +1 more source

The natural triterpene maslinic acid induces apoptosis in HT29 colon cancer cells by a JNK-p53-dependent mechanism

open access: yesBMC Cancer, 2011
Background Maslinic acid, a pentacyclic triterpene found in the protective wax-like coating of the leaves and fruit of Olea europaea L., is a promising agent for the prevention of colon cancer.
Cascante Marta   +5 more
doaj   +1 more source

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

open access: yesPest Management Science, EarlyView.
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   +8 more
wiley   +1 more source

Harnessing Natural Compounds in Psoriasis: Targeting Cellular Pathways for Effective Therapy

open access: yesPhytotherapy Research, EarlyView.
Natural compounds act on key cellular pathways in psoriasis by suppressing keratinocyte hyperproliferation, modulating Th17/IL‐17‐mediated immune responses, and reducing oxidative stress. These multi‐target effects highlight their potential as safer adjunctive therapies alongside conventional treatments.
Hye Jin Lee   +9 more
wiley   +1 more source

Antiproliferative Triterpenes from Melaleuca ericifolia

open access: yes, 2016
Three new 28-norlupane triterpenes, 28-norlup-20(29)-en-3β-hydroxy-17β-hydroperoxide (1), 28-norlup-20(29)-en-3β-hydroxy-17α-hydroperoxide (2), and 20S-17β,29-epoxy-28-norlupan-3β-ol (3), were isolated from the leaves of Melaleuca ericifolia along with ...
Khalid A. El Sayed (2241865)   +5 more
core   +1 more source

Immunomodulatory Properties of Masticadienonic Acid and 3α-Hydroxy Masticadienoic Acid in Dendritic Cells

open access: yesMolecules, 2022
Dendritic cells are antigen-presenting cells, which identify and process pathogens to subsequently activate specific T lymphocytes. To regulate the immune responses, DCs have to mature by the recognition of TLR ligands, TNFα or IFNγ.
Gabriela Piñón-Zárate   +9 more
doaj   +1 more source

Natural Products as Modulators of ABC Transporters in Breast Cancer

open access: yesPhytotherapy Research, EarlyView.
ABSTRACT Breast cancer remains a significant global health challenge, with high incidence and mortality rates despite advancements in early detection and treatment. Multidrug resistance (MDR), particularly in aggressive subtypes like triple‐negative breast cancer (TNBC), continues to hinder effective therapy.
Yoganishalini Sagadevan   +2 more
wiley   +1 more source

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