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Acetogenic anthraquinones: biosynthetic convergence and chemical evidence of enzymatic cooperation in nature
Springer Science and Business Media LLC - Tập 7 - Trang 499-511 - 2008
Phenylanthraquinones belong to the quite rare class of fully unsymmetric biaryls, consisting of two different molecular portions, an anthraquinone part, chrysophanol, and a phenyl part, 2,4-dihydroxy-6-methoxyacetophenone, linked together by phenol-oxidative coupling. The biosynthesis of these two moieties, from eight and four acetate units, respectively, bears some unique features: Chrysophanol i......
Propolis: chemical diversity and challenges in quality control
Springer Science and Business Media LLC - Tập 21 - Trang 1887-1911 - 2022
Propolis is a resinous natural product produced by honeybees using beeswax and plant exudates. The chemical composition of propolis is highly complex, and varies with region and season. This inherent chemical variability presents several challenges to its standardisation and quality control. The present review was aimed at highlighting marker compounds for different types of propolis, produced by ......
Multiple-approach studies to assess anthocyanin bioavailability
Springer Science and Business Media LLC - Tập 14 - Trang 899-919 - 2015
Anthocyanins that are commonly ingested from the diet are largely conjugated, metabolized by colon microbiota and excreted in the urine and feces, yielding in a rather low bioavailability. Nevertheless, there are several health-promoting properties attributed to the ingestion of dietary anthocyanins including cardiovascular and neuroprotective effects, and the prevention of some types of cancer. T......
Cell-targeted cytotoxics: a new generation of cytotoxic agents for cancer treatment
Springer Science and Business Media LLC - - 2014
Aromatic amino acid aminotransferases in plants
Springer Science and Business Media LLC - Tập 17 - Trang 131-159 - 2017
Aromatic amino acid aminotransferases (AAA-ATs) catalyze the reversible transamination reactions of proteinogenic and non-proteinogenic aromatic amino acids to corresponding keto acids and vice versa. The products of plant AAA-ATs serve as key precursors of many primary and secondary metabolites that are crucial for both plant and human metabolism and physiology. In most microbes, l-tyrosine (Tyr)......
Duchesnea genus: a comprehensive review of its phytochemistry, bioactivity, and pharmacology
Springer Science and Business Media LLC - - Trang 1-25
The Duchesnea genus (Rosaceae) is widely distributed throughout the world, and it is comprised of Duchesnea indica (D. indica) and Duchesnea chrysantha (D. chrysantha) species excluding varieties. The whole plant of Duchesnea genus has been used as a folk medicine for almost 2000 years in Asia. Its phytochemicals mainly include phenolic acids and their derivatives, flavono......
Structural classification and biological activities of Stemona alkaloids
Springer Science and Business Media LLC - Tập 18 Số 2 - Trang 463-493 - 2019
Five Himalayan weeds as potential bioresources for bioactive agents: toxic compounds to valuable scaffolds
Springer Science and Business Media LLC - - Trang 1-42 - 2024
Natural products are highly prevalent in Himalayan region clustered in medicinal and aromatic plants including weeds. Toxic weed plants are of serious concerns due to their hazardous effects to humans, environment, and animals. The cause of toxicity of these toxic weed plants is due to the presence of toxic secondary metabolites. Several toxic secondary metabolites have been reported and character......
Homology modeling of plant cytochrome P450s
Springer Science and Business Media LLC - Tập 5 Số 2-3 - Trang 473-505 - 2006
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