Department of Chemistry, Vanderbilt University, Nashville, Tennessee 37235, United States ...

MALDI-TOF mass spectroscopy analysis was conducted using an ultrafleXtreme MALDI-TOF spectrophotometer (Bruker Daltonics, Billerica, MA) operating in the linear positive ion mode. The sample was ...

Macrocyclic natural products have evolved to fulfil numerous biochemical functions, and their pharmacological properties have led to their development as drugs. The current set of more than 100 ...

The pectin chain folds approaching distant carboxylate groups creating chelating coordination sites ... or phase transitions (DTA), and a total weight loss ranging from 2.8 to 5.8%, depending on the ...

(a) Annatto tree (known as “urucuzeiro” in Brazil) and annatto fruit (known as “urucum”), a small capsule with soft spines containing the seeds/dyes; (b) carotenoid formed by isoprene ...

The sample surface was first roughened with sandpaper and polishing liquid, and then polished with a Gatan 685C argon-ion polisher. After polishing, the samples were gold-coated and examined using a ...