Search claims · PlantClaims

Method / resourceobservedoriginal resultpositivemeasured

Claim · model-written summary

Optimized extraction produced 3.5-fold higher total polyphenolic content than conventional extraction.

Taxon: Cordia myxa L.Cordia myxat0
Outcome: TPCe0
Direction: highere0
Value: 3.5 timese0
Comparator: conventional methode0

Verbatim

e0
“The TFC and TPC of the optimized extract were 4 and 3.5 times higher than the extract obtained by a conventional method, respectively”
✓ located verbatim in the source · abstract, characters 983–1116

e1
“total polyphenolic content (TPC)”
✓ located verbatim in the source · abstract, characters 298–330

t0
“Cordia myxa L.”
✓ located verbatim in the source · title, characters 96–110

Title

The determination of extract yield, polyphenolic content and anti-leishmanial activity of Iraqi Cordia myxa L. crude extracts obtained by two methods of extraction: A comparative study

Al-Ogaili Niran Plant Science Today 2025. doi:10.14719/pst.6981

Other claims from this paper (6)

Observation Bumber leaf extract contained six reported phytochemical groups.
Observation Maximum extract yield occurred at 15 min, 70 % and 40 kHz.
Method / resource Ultrasound extraction yielded 14.8 % dry extract versus 6.93 % with conventional extraction.
Method / resource Optimized extraction produced fourfold higher total flavonoid content than conventional extraction.
Observation Optimized leaf extract inhibited L. tropica promastigotes by 89 % with IC50 of 38.98 μg/mL.
Observation Conventional leaf extract inhibited promastigotes by 75 % with IC50 of 46.81 μg/mL.

Method / resourceobservedoriginal resultpositivemeasured

Claim · model-written summary

The selected extraction conditions gave the highest total polyphenolic content while avoiding phenolic degradation.

Taxon: Coreopsis tinctoria Nutt.Coreopsis tinctoriat0
Organ / stage: fruitst0
Treatment: ethanol 55%; extraction temperature 323.15 K, extraction time 30 min, liquid/solid ratio 20/1e0
Outcome: total polyphenolic contente0
Direction: higheste0
Value: 55%e0

Verbatim

e0
“The experimental results allowed the selection of the optimum operating parameters leading to the highest total polyphenolic content, expressed as gallic acid equivalents, and avoiding the degradation of phenolic compounds (ethanol 55%; extraction temperature 323.15 K, extraction time 30 min, liquid/solid ratio 20/1).”
✓ located verbatim in the source · abstract, characters 855–1174

t0
“Polyphenols in Coreopsis tinctoria Nutt. fruits and the plant extracts antioxidant capacity evaluation”
✓ located verbatim in the source · title, characters 0–102

Title

Polyphenols in Coreopsis tinctoria Nutt. fruits and the plant extracts antioxidant capacity evaluation

Christina Zălaru; Claudia Crişan; Ioan Călinescu; et al. Open Chemistry 2014. doi:10.2478/s11532-014-0539-x

Other claims from this paper (3)

Observation Coreopsis fruit extract contained several named flavonoids.
Observation Coreopsis fruit extract contained chlorogenic and caffeic acids.
Association Total phenolic content and antioxidant capacity had a good relationship.

Method / resourceobservedoriginal resultpositivemeasured

Claim · model-written summary

Fifty-percent ethanol gave the best total polyphenol extraction rate.

Taxon: Lamiaceae speciesLamiaceaee0
Outcome: extraction rate of total polyphenolse0
Direction: beste0
Value: 50%e0

Verbatim

e0
“The best extraction rate of total polyphenols in the investigated Lamiaceae species was obtained with 50% ethanol”
✓ located verbatim in the source · abstract, characters 1562–1675

Title

The polyphenolic content of common lamiaceae species available as herbal tea products in Romanian pharmacies.

Ana Clara Aprotosoaie; Elena Răileanu; Adriana Trifan; et al. PubMed 2014

Other claims from this paper (7)

Observation Total polyphenols ranged from 3.10% to 6.51% in sampled products.
Observation Melissa officinalis had the largest total polyphenol amount, 6.51%.
Observation Salvia pratensis had 1.83% flavonoid derivatives.
Observation Mentha piperita had 1.53% flavonoid derivatives.
Method / resource Seventy-percent ethanol was optimal for flavonoid extraction.
Observation Melissa officinalis had the highest hydroxycinnamic acid content, 4.15%.
Observation Polyphenolic content varied by species, polyphenol type and solvent.

Method / resourceobservedoriginal resultpositivemeasured

Claim · model-written summary

Optimized extraction produced fourfold higher total flavonoid content than conventional extraction.

Taxon: Cordia myxa L.Cordia myxat0
Outcome: TFCe0
Direction: highere0
Value: 4e0
Comparator: conventional methode0

Verbatim

e0
“The TFC and TPC of the optimized extract were 4 and 3.5 times higher than the extract obtained by a conventional method, respectively”
✓ located verbatim in the source · abstract, characters 983–1116

e1
“total flavonoid content (TFC)”
✓ located verbatim in the source · abstract, characters 335–364

t0
“Cordia myxa L.”
✓ located verbatim in the source · title, characters 96–110

Title

The determination of extract yield, polyphenolic content and anti-leishmanial activity of Iraqi Cordia myxa L. crude extracts obtained by two methods of extraction: A comparative study

Al-Ogaili Niran Plant Science Today 2025. doi:10.14719/pst.6981

Other claims from this paper (6)

Observation Bumber leaf extract contained six reported phytochemical groups.
Observation Maximum extract yield occurred at 15 min, 70 % and 40 kHz.
Method / resource Ultrasound extraction yielded 14.8 % dry extract versus 6.93 % with conventional extraction.
Method / resource Optimized extraction produced 3.5-fold higher total polyphenolic content than conventional extraction.
Observation Optimized leaf extract inhibited L. tropica promastigotes by 89 % with IC50 of 38.98 μg/mL.
Observation Conventional leaf extract inhibited promastigotes by 75 % with IC50 of 46.81 μg/mL.

Method / resourceobservedoriginal resultbasis n/a

Claim · model-written summary

The authors proposed a chromatographic flavonoid profile and tannin or total polyphenol determination for standardization.

Taxon: bilberryVaccinium myrtillust0
Outcome: standardization purposee0

Not reportedComparator

Verbatim

e0
“A specific chromatographic profile of the flavonoid compounds and a determination method of the tannin or the total polyphenol content were proposed in a standardization purpose.”
✓ located verbatim in the source · abstract, characters 557–735

t0
“bilberry”
✓ located verbatim in the source · title, characters 41–49

Title

[Polyphenolic composition of the leaf of bilberry].

D Fraisse; A Carnat; J L Lamaison PubMed 1996

Other claims from this paper (10)

Method / resourceobservedoriginal resultpositivemeasured

Claim · model-written summary

NIR spectroscopy determined trans-resveratrol, quercetin, total phenolics and antioxidant activity with very good accuracy.

Taxon: grape varietiese0
Outcome: accuracy of determinatione0

Not reportedComparatorValue

Verbatim

e0
“NIR spectroscopy showed very good accuracy of determination of trans-resveratrol, quercetin, total phenolic content, and the antioxidant activity of tested grape varieties and red wines.”
✓ located verbatim in the source · abstract, characters 1168–1354

Title

Content of Polyphenolic Compounds and Antioxidant Potential of Some Bulgarian Red Grape Varieties and Red Wines, Determined by HPLC, UV, and NIR Spectroscopy

Milena Tzanova; Stefka Atanassova; Vasil Atanasov; et al. Agriculture 2020. doi:10.3390/agriculture10060193

Other claims from this paper (7)

Observation Tested grape varieties had similar antioxidant concentration levels to the same varieties grown elsewhere.
Association Trans-resveratrol contributed most to radical scavenging capacity.
Association Variety had the largest impact on tested antioxidant content.
Association Temperature amplitude strongly influenced tested antioxidant content.
Association Rainfall strongly influenced tested antioxidant content.
Association UV irradiation before ripening strongly influenced tested antioxidant content.
Recommendation The authors suggest NIR spectroscopy for quantifying antioxidant parameters.

Method / resourceobservedoriginal resultpositivemeasured

Claim · model-written summary

Choline chloride–citric acid was selected as the most suitable of eleven DESs and three conventional solvents for extracting phenolics.

Taxon: Aloe VeraAloe verat0
Treatment: Choline chloride–citric acid (ChCl-CA)e2
Outcome: extraction efficiency in relation to the total phenolic contente2
Comparator: Eleven different DESs and three conventional solventse1

Verbatim

t0
“Utilization of an Aloe Vera Rind By-Product”
✓ located verbatim in the source · title, characters 4–47

e1
“Eleven different DESs and three conventional solvents were employed as extraction media for polyphenolic compounds”
✓ located verbatim in the source · abstract, characters 311–425

e2
“Choline chloride–citric acid (ChCl-CA) was selected as the most suitable extractant, considering its extraction efficiency in relation to the total phenolic content”
✓ located verbatim in the source · abstract, characters 427–591

Title

The Utilization of an Aloe Vera Rind By-Product: Deep Eutectic Solvents as Eco-Friendly and Recyclable Extraction Media of Polyphenolic Compounds

Georgia D. Ioannou; Katerina A. Ioannou; Atalanti Christou; et al. Antioxidants 2024. doi:10.3390/antiox13020162

Other claims from this paper (7)

Method / resource The optimal ultrasound-assisted extraction time was 16.5 min.
Method / resource The optimal extraction solvent was 74% (v/v) DES in water.
Method / resource The optimal solvent-to-solid ratio was 192.
Observation HPLC showed significant levels of phenolics present in the aloe rind.
Observation Solid-phase extraction with polyamide cartridges efficiently recovered the extracted antioxidants.
Method / resource The ChCl-CA DES recycled through SPE with a yield of over 90%.
Observation The proposed extraction procedure is sustainable and green.

Method / resourceobservedoriginal resultpositivemeasured

Claim · model-written summary

The analytical method had acceptable precision and linearity.

Taxon: soybeanGlycine maxe1
Outcome: Precision and linearitye0
Comparator: standard limits of validatione0

Not reportedDirection

Verbatim

e0
“Precision and linearity of the applied method were within the standard limits of validation”
✓ located verbatim in the source · abstract, characters 322–413

e1
“Twenty soybean cultivars”
✓ located verbatim in the source · abstract, characters 0–24

Title

Isoflavone Composition, Total Polyphenolic Content, and Antioxidant Activity in Soybeans of Different Origin

Vesna Tepavčević; Milica Atanacković; Jegor Miladinović; et al. Journal of Medicinal Food 2010. doi:10.1089/jmf.2009.0050

Other claims from this paper (9)

Observation The highest total isoflavone content was 4.59 mg/g dried soybean weight.
Observation The lowest total isoflavone content was 1.45 mg/g dried soybean weight.
Association Isoflavone concentration differed significantly among cultivars.
Association Geographic origin was not a significant influence on soybean isoflavone content.
Observation Soybean total polyphenolic content ranged from 2.13 to 3.45 mg gallic acid equivalents per g dried soybean weight.
Observation Soybean extract IC50 ranged from 1.40 to 3.35 mg/mL.
Association Total polyphenolic content correlated negatively with IC50.
Association Total isoflavone content did not correlate with IC50.
Recommendation The authors state that soybean cultivars with greater biological activity can be identified.

“total polyphenolic content”

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