Results 51 to 60 of about 169,101 (262)

Responses of Zea mays L. Cultivars to PEG induced Drought Stress [PDF]

open access: yesJournal of Stress Physiology & Biochemistry
Water deficit stress is one major environmental constraint having a devastating impact on crop productivity. Improving plant tolerance to drought is imperative to ensure food security.
Rozina Yendrembam   +2 more
doaj  

New Chemical Constituents from the Bark of Dendropanax morbifera Leveille and Their Evaluation of Antioxidant Activities

open access: yesMolecules, 2019
Four new constituents, as cis-6-oxogeran-4-enyl-10-oxy-O-β-arabinopyranosyl-4′-O-β-arabinopyranosyl-2″-octadec-9‴,12‴,15‴-trienoate (1), geran-3(10)-enyl-1-oxy-O-β-arabinopyranosyl-4′-O-β-arabinopyranosyl-2″ ...
Ill-Min Chung   +7 more
doaj   +1 more source

Synthesis, in vitro safety and antioxidant activity of new pyrrole hydrazones

open access: yesActa Pharmaceutica, 2020
Six new N-pyrrolylhydrazide hydrazones were synthesized under micro synthesis conditions, assuring about 59–93 % yield, low harmful emissions and reagent economy. The structures of the new compounds were elucidated by melting points, TLC characteristics,
Tzankova Diana   +5 more
doaj   +1 more source

DPPH and NO scavenging activity of grumixama and guabiju extracts.

open access: yes, 2023
DPPH and NO scavenging activity of grumixama and guabiju extracts.
Bruna Tischer (1460761)   +4 more
core   +1 more source

Supramolecular Zinc–Polyphenol Coordination Assemblies Mitigate Colonic Inflammation by Regulating Mucosal Barrier and Microbiome

open access: yesAdvanced Science, EarlyView.
A carrier‐free zinc‐coordinated polyphenol nanoplatform (ZnCA NPs) is designed as an “all‐in‐one” therapeutic strategy for intestinal inflammation. The ZnCA NPs exhibit enhanced colonic accumulation and broad‐spectrum reactive oxygen and nitrogen species scavenging.
Qiwen Xie   +7 more
wiley   +1 more source

Adaptation of DPPH Method for Antioxidant Determination

open access: yes, 2011
Antioxidants are indispensable molecules that help prevent biomolecule oxidation. By fighting the production of free radicals, antioxidants prevent different ageing-associated diseases.
Adriana M. Domínguez y Ramírez   +5 more
core   +1 more source

Multifunctional Zinc Glycyrrhizinate‐Integrated Gel for Enhanced Probiotic Delivery and Alleviation of Acute and Spontaneous Colitis

open access: yesAdvanced Science, EarlyView.
Multifunctional oral delivery system—L. reuteri@ZGM—act as both a carrier and therapeutic adjuvant, providing ROS scavenging, and mucin‐interactive properties tailored to the IBD microenvironment. This bioactive gel safeguards L. reuteri from gastric degradation, enhances mucosal adhesion, and promotes long‐term retention at inflamed sites, thereby ...
Mengyun Peng   +8 more
wiley   +1 more source

Self‐Propelled HPB@Lip@AB Nanomotors Ameliorate Dry Eye Disease

open access: yesAdvanced Science, EarlyView.
A self‐propelled HPB@Lip@AB nanomotor system is developed for dry eye disease (DED) therapy, facilitating rapid penetration across ocular surface barriers while integrating hydrogen therapy with multi‐enzyme‐like antioxidant activity. The nanoplatform restores mitochondrial function, suppresses oxidative stress, inflammation, and apoptosis, and ...
Jing Li   +9 more
wiley   +1 more source

Importance and using DPPH in cereals

open access: yes, 2011
Bakalářská práce obsahuje stručnou charakteristiku cereálií, cereálních výrobků, vymezení pojmu antioxidační aktivity a jednotlivé metody jejího stanovení. Podrobnější popis je zaměřen na význam a využití metody DPPH.
Jančová, Veronika
core   +1 more source

Flavonoids, cytotoxic, antioxidant and antibacterial activities of Evax pygmaea

open access: yesPharmaceutical Biology, 2017
Context: Phytochemical study and biological potential of Evax pygmaea (L.) Brot. (Asteraceae) are reported for the first time. Objective: To identify the secondary metabolites of Evax pygmaea and to determine its antioxidant, antibacterial and cytotoxic ...
Assia Khalfallah   +7 more
doaj   +1 more source

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