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Free radical scavengers and antioxidants from Lemongrass (Cymbopogon citratus (DC.) Stapf.).
Methanol, MeOH/water extracts, infusion, and decoction of Cymbopogon citratus were assessed for free radical scavenging effects measured by the bleaching of the 1,1-diphenyl-2-picryl-hydrazyl (DPPH)
Antioxidant capacity, polyphenolic content and tandem HPLC-DAD-ESI/MS profiling of phenolic compounds from the South American berries Luma apiculata and L. chequén.
TLDR
The aerial parts and berries from Luma apiculata and Luma chequen were investigated for phenolic constituents and antioxidant capacity and 3-O-(6″-O-galloyl)-hexose derivatives of myricetin, quercet in, laricitrin and isorhamnetin are reported for the first time for the genus Luma.
The Passiflora tripartita (Banana Passion) Fruit: A Source of Bioactive Flavonoid C-Glycosides Isolated by HSCCC and Characterized by HPLC–DAD–ESI/MS/MS
TLDR
The banana passion fruit (Passiflora tripartita Breiter, Passifloraceae) known as “tumbo” is very appreciated in tropical and subtropical countries of South America and its extracts were analyzed for antioxidant capacity as well as for flavonoid and phenolic content.
Free radical scavenging activity of Lafoensia pacari.
TLDR
Bioassay-guided isolation led to ellagic acid (EA) as the main active compound of Brazilian and Paraguayan collections of the plant.
Free radical scavenging activity and phenolic content in achenes and thalamus from Fragaria chiloensis ssp. chiloensis, F. vesca and F. x ananassa cv. Chandler
The total phenolic, flavonoid and anthocyanin content of achenes (true fruit) and thalamus (receptacle) from the native South American Fragaria chiloensis ssp. chiloensis (f. patagonica and f.
Diterpenes and a lignan from Jatropha grossidentata
The roots of Jatropha grossidentata gave, in addition to the previously described rhamnofolanes, nine further diterpenes of the lathyrane type. Furthermore, a new lignan and known coumarino-lignan
Comparison of phenolic composition and antioxidant properties of two native Chilean and one domestic strawberry genotypes
Abstract The phenolic composition of extracts from the forms chiloensis and patagonica of Fragaria chiloensis were compared with that of the commercial strawberry Fragaria  ×  ananassa cv. Chandler
Main flavonoids, DPPH activity, and metal content allow determination of the geographical origin of propolis from the Province of San Juan (Argentina).
The chemical characterization as well as the assessment of geographical origin of propolis from several areas of the Provincia de San Juan (Argentina) is reported. Chemical characterization of
Determination of phenolic composition and antioxidant activity in fruits, rhizomes and leaves of the white strawberry (Fragaria chiloensis spp. chiloensis form chiloensis) using HPLC-DAD-ESI-MS and
Abstract A comparative analysis of methanol extracts from fruits, rhizomes and leaves of the Chilean white strawberry ( Fragaria chiloensis spp. chiloensis var chiloensis ) was performed by means of
Antiprotozoal activity of Jatrogrossidione from Jatropha grossidentata and Jatrophone from Jatropha isabellii
TLDR
Jatrogrossidione showed a strong in vitro leishmanicidal and trypanocidal activity with IC100 of 0.75 and 1.0 μg/mL, respectively, against Leishmania and Trypanosoma cruzi strains in vitro as well as againstLeishmania amazonensis in vivo.
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