Claim · model-written summary
DES-UAE reduced the time, temperature and ultrasonic power required for extraction compared with conventional techniques.
- Taxon
- Rudbeckia hirta
Rudbeckia hirtae0 - Treatment
- DES-UAEe3
- Outcome
- time, temperature, and ultrasonic power required for extractione3
- Direction
- reducinge3
- Comparator
- conventional extraction techniquese3
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Rudbeckia hirta L. flowers”
e3“DES-UAE increased the TFC and the antioxidant capacity of the extract while reducing the time, temperature, and ultrasonic power required for extraction when compared with conventional extraction techniques”
Title
Jiang-Rui Wang; Yin-Long Li; Hai-Tao Zhang; et al. Journal of Applied Research on Medicinal and Aromatic Plants 2024. doi:10.1016/j.jarmap.2024.100618
Other claims from this paper (7)
- Method / resource Choline chloride:ethylene glycol (1:2) was the best of 14 DESs for flavonoid extraction from Rudbeckia hirta flowers.
- Method / resource The optimized DES-UAE gave a maximal total flavonoid content of 37.41 ± 1.32 mg rutin equivalents/g dry mass in Rudbeckia hirta flowers.
- Intervention effect DES-UAE increased the total flavonoid content and antioxidant capacity of Rudbeckia hirta flower extract compared with conventional extraction.
- Intervention effect Replacing ethanol with DES in UAE increased the contents of quercetagitrin, patulitrin, patuletin and quercetin by 9.4 % to 24.4 %.
- Intervention effect DES-UAE gave substantially higher anti-inflammatory activity of the Rudbeckia hirta extract than traditional methods in a lipopolysaccharide-induced macrophage model.
- Mechanism Flavonoids in the R. hirta extract may be responsible for most of its anti-inflammatory activity.
- Recommendation Rudbeckia hirta is a good resource for isolating natural anti-inflammatory agents and flavonoids.