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EVALUATION OF ANTIOXIDANT ACTIVITY OF PHENOLIC COMPOUNDS PRESENT IN LIPPIA SIDOIDES CHAM LEAVES

2016· article· en· W3196403485 on OpenAlexaff
Thayrine Dias Carlos, Welington Francisco, Luiz Gustavo de Lima Guimarães

Bibliographic record

VenuePERIÓDICO TCHÊ QUÍMICA · 2016
Typearticle
Languageen
FieldAgricultural and Biological Sciences
TopicMedicinal Plant Research
Canadian institutionsArcelorMittal (Canada)
Fundersnot available
KeywordsPhytochemicalGallic acidDPPHChemistryLinoleic acidTraditional medicineAntioxidantQuercetinFood scienceBotanyOrganic chemistryBiochemistryBiologyFatty acid

Abstract

fetched live from OpenAlex

Several chemical, pharmacological and clinical studies have enabled phytochemical area developed a many drugs used today, such as aspirin, digitoxin, morphine, quinine and pilocarpine. In addition, this area has enriched and expanded numerous species of plants with medicinal potential, resulting in the isolation of substances with diverse biological activities that serve as prototypes for future drugs. This study aims to explore the potential of the species Lippia sidoides, quantifying the content of phenolic compounds from the methanol extract of the leaves, as well as evaluating the antioxidant activity. For chemical research, we used the spectrophotometric method of Folin-Ciocalteau using gallic acid as standard, which allowed determining a level of 126.89 ± 23.08 mg of gallic acid/g extract for total phenolic compounds by the Folin-Ciocalteau’ methods, a value within the patterns found in the literature. When evaluated the antioxidant activity by methods of inhibiting free radical DPPH (2,2- diphenyl-1-picrylhydrazyl), oxidation of linoleic β-carotene/linoleic acid system and reducing power, the results showed 90% inhibition for the first two methods and a good ability to donate electron to the latter method. This results show the potential that this plant has as a source of antioxidant compounds and the need to further explore the phytochemical studies on this species.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.001
Threshold uncertainty score0.004

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0010.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.083
GPT teacher head0.314
Teacher spread0.232 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designBench or experimental
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

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Citations1
Published2016
Admission routes1
Has abstractyes

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