Abstract
Bioassay-guided fractionation of the methanolic extract of Turpinia ternata stems, has led to the isolation of the new ellagic acid derivative 3,4'-di-O-methylellagic acid-4-O-alpha-L-arabinofuranoside (1), and the known compounds ellagic acid (2), 3-O-methyl ellagic acid (3), 3-O-methylellagic acid-3'-O-alpha-L-rhamnopyranoside (4), and 3,3'-di-O-methylellagic acid-4'-O-alpha-D-glucopyranoside (5). Their structures were elucidated by extensive spectroscopic methods. Compounds 1, 3, and 4 showed moderate antioxidant activity against DPPH free radical, whereas compound 1 was found to be moderately cytotoxic against Artemia salina larvae.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 5
Claim · model-written summary
Bioassay-guided fractionation of the methanolic extract of Turpinia ternata stems yielded a new ellagic acid derivative.
- Taxon
- Turpinia ternata
Turpinia ternatae0 - Organ / stage
- stemse0
- Outcome
- isolation of the new ellagic acid derivativee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“methanolic extract of Turpinia ternata stems, has led to the isolation of the new ellagic acid derivative”
Claim · model-written summary
The structures of the isolated compounds were elucidated by extensive spectroscopic methods.
- Taxon
- Turpinia ternataTurpinia ternatae0
- Outcome
- Their structures were elucidatede1
- Qualifier
- by extensive spectroscopic methodse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“methanolic extract of Turpinia ternata stems”
e1“Their structures were elucidated by extensive spectroscopic methods”
Claim · model-written summary
Compounds 1, 3 and 4 showed moderate antioxidant activity against DPPH free radical.
- Taxon
- Turpinia ternataTurpinia ternatat0
- Compound
- Compounds 1, 3, and 4e2
- Outcome
- antioxidant activity against DPPH free radicale2
- Qualifier
- moderatee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Turpinia ternata”
e2“Compounds 1, 3, and 4 showed moderate antioxidant activity against DPPH free radical”
Claim · model-written summary
Compound 1 was moderately cytotoxic against Artemia salina larvae.
- Taxon
- Turpinia ternataTurpinia ternatat0
- Compound
- compound 1e3
- Outcome
- cytotoxic against Artemia salina larvaee3
- Qualifier
- moderatelye3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Turpinia ternata”
e3“compound 1 was found to be moderately cytotoxic against Artemia salina larvae”
Claim · model-written summary
Known compounds ellagic acid, 3-O-methyl ellagic acid and two further ellagic acid glycosides were also isolated.
- Taxon
- Turpinia ternataTurpinia ternatat0
- Outcome
- known compoundse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Turpinia ternata”
e4“the known compounds ellagic acid (2), 3-O-methyl ellagic acid (3)”