Results 91 to 100 of about 723,466 (203)

Mechanistic Study on Orpiment Pigment Discoloration Induced by Reactive Oxygen Species

open access: yesMolecules
Orpiment (As2S3), a yellow mineral pigment widely used in historical artworks, undergoes degradation that seriously threatens the integrity of Dunhuang murals.
Jiaxing Sun   +7 more
doaj   +1 more source

Natural Products in Medicinal Chemistry [PDF]

open access: yesBioorganic & Medicinal Chemistry, 2009
Gordon M. Cragg, David J. Newman
openaire   +3 more sources

Preliminary Physical and Chemical Characterization of By-Products from Cuban Coffee Production

open access: yesFoods
Coffee is one of the most consumed beverages worldwide. Its production generates a large amount of waste, and its use is of vital importance to prevent it from becoming a source of environmental pollution.
Dayana Mesa   +8 more
doaj   +1 more source

Cassane diterpenoids from lonchocarpus laxiflorus [PDF]

open access: yes, 2008
This article examines cassane diterpenoids from lonchocarpus ...
Gray, A.I.   +4 more
core  

Natural Product Chemistry and Biological Research

open access: yesInternational Journal of Molecular Sciences
Natural products are substances found in nature that have not been significantly modified by humans [...]
Francisco Les   +2 more
openaire   +2 more sources

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