Results 51 to 60 of about 5,603 (210)

Photodynamic and Sonodynamic Antibacterial Activity of Grape Leaf Extracts

open access: yesApplied Sciences
Food spoilage and contamination are major global challenges, reducing food quality, safety, and availability, causing significant economic losses. This study evaluates the photodynamic and sonodynamic antibacterial activities of grape leaf extracts from ...
Tigabu Haddis Ale   +7 more
doaj   +1 more source

A century of vitamin E research: The innovative journey from basic biology to synthetic bio‐manufacturing

open access: yesJournal of Integrative Plant Biology, Volume 68, Issue 4, Page 985-1012, April 2026.
For a century, Vitamin E has been studied for its health benefits. This review traces its journey from basic biological discovery, and the recent identification of its link to chlorophyll degradation, to the modern era of sustainable microbial manufacturing, highlighting the innovative technologies that define its future production.
Ruiqi Zhang   +7 more
wiley   +1 more source

Photoacclimation of cryptophytes and diatoms to light variability in the Western Antarctic Peninsula

open access: yesJournal of Phycology, Volume 62, Issue 2, Page 643-665, April 2026.
Abstract Meltwater stratification during austral summer along the rapidly warming Western Antarctic Peninsula (WAP) exposes coastal phytoplankton to sudden light shifts. Such variability is thought to modulate phytoplankton dynamics, yet the photoacclimation capacity of Antarctic phytoplankton, especially cryptophytes, remains unclear.
Afonso Ferreira   +8 more
wiley   +1 more source

ISOLATION AND STRUCTURE DETERMINE OF SOME COMPOUNDS FROM THE METHANOL EXTRACT OF Enhalus acoroides COLLECTED IN VIETNAM

open access: yesTạp chí Khoa học
Three compounds were isolated from the methanol extract of the species Enhalus acoroides using a combination of several chromatographic methods. The structural elucidations of those compounds were analysed using ESI-MS and NMR.
Ho Xuan Thuy, Tran Trung Hieu, Le Duc Giang   +2 more
doaj   +1 more source

Conjugated PDT drug: Photosensitizing activity and tissue distribution of PEGylated pheophorbidea [PDF]

open access: yesCancer Biology & Therapy, 2010
The design of new photosensitizers with enhanced phototoxicity and pharmacokinetic properties remains a central challenge for cancer photodynamic therapy (PDT). In this study, Pheophorbide a (Pba) has been pegylated to methoxypolyethylene glycol (mPE G-Pba) to produce a soluble photosensitizer that exhibits a higher tissue distribution than free Pba ...
Rapozzi V.   +9 more
openaire   +4 more sources

Combination of EGCG and CPPU Treatment Alleviates Pericarp Browning by Boosting Antioxidant Activity and Inhibiting Chlorophyll Degradation in “Feizixiao” Litchi After Harvest

open access: yesFood Frontiers, Volume 7, Issue 2, March 2026.
The combined treatment of EGCG and CPPU exhibits alleviating the reduction of phenolic content and antioxidant activity, thereby reducing MDA and H2O2 accumulation, as well as maintaining membrane integrity; and inhibiting chlorophyll degradation and the expression of related genes.
Hua Huang   +4 more
wiley   +1 more source

Chlorophyll-a transformations associated with sinking diatoms during termination of a North Atlantic spring bloom [PDF]

open access: yes, 2015
A research cruise in the North Atlantic during the annual diatom bloom provided an ideal platform to study chlorophyll-a (chl-a) transformations associated with a large scale diatom bloom and export below the photic zone.
Carole Llewellyn
core   +1 more source

Propagation of cell death in dropdead1, a sorghum ortholog of the maize lls1 mutant. [PDF]

open access: yesPLoS ONE, 2018
We describe dropdead1-1 (ded1), an EMS-induced recessive lesion mimic mutant of sorghum. It is characterized by the formation of spreading necrotic lesions that share many attributes with those associated with the maize lethal leaf spot1 (lls1) and ...
Anoop Sindhu   +6 more
doaj   +1 more source

SARS-CoV-2 Fears Green: The Chlorophyll Catabolite Pheophorbide A Is a Potent Antiviral

open access: yesPharmaceuticals, 2021
SARS-CoV-2 pandemic is having devastating consequences worldwide. Although vaccination advances at good pace, effectiveness against emerging variants is unpredictable.
Guillermo H. Jimenez-Aleman   +6 more
doaj   +1 more source

Characteristics of the tomato chromoplast revealed by proteomic analysis [PDF]

open access: yes, 2010
Chromoplasts are non-photosynthetic specialized plastids that are important in ripening tomato fruit (Solanum lycopersicum) since, among other functions, they are the site of accumulation of coloured compounds.
Barsan, Cristina   +9 more
core   +3 more sources

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