Results 121 to 130 of about 4,394,723 (244)

Dyes In South America

open access: yes, 2015
[No abstract available]5364Tiempos, L., Cultivos de achiote crecen, pero no cubre la demanda (2004), www.lostiempos.com/noticias/31-08-04/31_08_04_eco6.phpFAO entrega resultados positivos de programa contra deforestación (2006), http://www.un.org/spanish/
Mercadante A.Z., Vera De Rosso V.
core   +1 more source

Synthesis and Optical Properties of Diboron Complexes of 1,4‐Anthraquinone Derivatives

open access: yesChemistry – A European Journal, Volume 32, Issue 34, 11 September 2026.
1,4‐Diboron complexes exhibit near‐infrared fluorescence, in contrast to non‐emissive 1,5‐diboron analogues. Fluorescence quantum yields decrease with increasing electron‐donating substituents, attributed to enhanced nonradiative decay via intramolecular PeT.
Yasuhiro Kubota   +10 more
wiley   +1 more source

Production of natural colorants by liquid fermentation with Chlorociboria aeruginascens and Laetiporus sulphureus and prospective applications. [PDF]

open access: yesEng Life Sci, 2021
Zschätzsch M   +9 more
europepmc   +1 more source

Color‐Center‐Driven Inorganic Photochromic Materials: Mechanisms, Classifications and Property Modulation

open access: yesAdvanced Physics Research, Volume 5, Issue 9, September 2026.
This review explores color‐center‐mediated photochromism in inorganic materials and elaborates on defect‐originated photochromic fundamentals. It categorizes typical material systems by three core color‐center sources, including oxygen vacancies, non‐oxygen anion‐related defects, and cation‐related defects and summarizes feasible defect engineering ...
Jingxuan Zhang   +3 more
wiley   +1 more source

Colorant plants used by Guaranis of Misiones, Argentina

open access: yesBonplandia, 2010
A study about natural resources used by Guaranis of Misiones Province as colorants is presented here. These resources are considered according to different aims of applications and classified in handicraft colorants, corporal dyes and tints for cloths ...
Héctor A. Keller
doaj  

From Traditional Spice to Functional Ingredient: Phenolic Profile and Bioactive Properties of Sicilian Rhus coriaria L. Fruit

open access: yesChemistry &Biodiversity, Volume 23, Issue 9, September 2026.
The phenolic composition of Rhus coriaria fruits has been comprehensively characterized and linked to a variety of biological activities, including antioxidant, anti‐glycation, enzyme‐inhibitory, and cytoprotective effects. These findings highlight the functional potential of Sicilian sumac as a valuable source of health‐promoting phytochemicals ...
Katia Arena   +6 more
wiley   +1 more source

One-step ultrasound-assisted recovery of yellow-orange-red natural coloring from defatted annatto seeds: A cleaner processing alternative

open access: yesUltrasonics Sonochemistry
The interest in natural colorants derived from sustainable processes has prompted research into obtaining bixin from defatted annatto (Bixa orellana L.) seeds.
Monique Martins Strieder   +4 more
doaj   +1 more source

Comparative Study of Free and Total Fatty Acids of Spreadable Cheeses by Mass Spectrometry Methods

open access: yesChemFoodChem, Volume 2, Issue 3, September 2026.
This study focuses on the determination of FFAs in spreadable cheeses and alternatives using a fast Liquid Chromatography‐High Resolution Mass Spectrometry method. A Gas Chromatography‐Mass Spectrometry method was used to determine the composition (%) of total FAs in the same samples.
Christiana Mantzourani   +6 more
wiley   +1 more source

Home - About - Disclaimer - Privacy