Abstract
The medicinal plants of the desert can be a potential source of natural bioactive compounds with applications in health and food preservation. This work aimed to investigate the phenolic content and antioxidant potential of twenty-three plants from the arid zone of Viesca, Mexico. The antioxidant potential was determined by three methods (ABTS, FRAP, and DPPH). Two extraction methods and three different concentration levels (1:10 mg/mL, 1:25 mg/mL, and 1:50 mg/mL) were evaluated. According to the results, Turnera diffusa (Damiana), Gutierrezia sarothrae (Hierba de San Nicolas), and Leucophyllum frutescens (Cenizo) present the largest content of phenolic compounds and high antioxidant activity. The highest values of antioxidant activity were achieved using a solid/liquid ratio of 1:50 g/mL for T. diffusa and G. sarothrae and 1:25 mg/mL for L. frutescens. The maceration method was the most suitable for extracting antioxidant compounds from T. diffusa and L. frutescens, while ultrasound-assisted extraction was more efficient for G. sarothrae. The HPLC-MS analysis showed the presence of important phenolic compounds. This study shows for the first time that three plants that naturally grow in Viesca have great potential as a source of natural antioxidant compounds.
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Claims 10
Claim · model-written summary
Turnera diffusa had among the largest phenolic contents and high antioxidant activity.
- Taxon
- Turnera diffusa
Turnera diffusae0 - Outcome
- largest content of phenolic compounds and high antioxidant activitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Turnera diffusa (Damiana), Gutierrezia sarothrae (Hierba de San Nicolas), and Leucophyllum frutescens (Cenizo) present the largest content of phenolic compounds and high antioxidant activity”
Claim · model-written summary
Gutierrezia sarothrae had among the largest phenolic contents and high antioxidant activity.
- Taxon
- Gutierrezia sarothrae
Gutierrezia sarothraee0 - Outcome
- largest content of phenolic compounds and high antioxidant activitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Turnera diffusa (Damiana), Gutierrezia sarothrae (Hierba de San Nicolas), and Leucophyllum frutescens (Cenizo) present the largest content of phenolic compounds and high antioxidant activity”
Claim · model-written summary
Leucophyllum frutescens had among the largest phenolic contents and high antioxidant activity.
- Taxon
- Leucophyllum frutescens
Leucophyllum frutescense0 - Outcome
- largest content of phenolic compounds and high antioxidant activitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Leucophyllum_frutescens.jpg?width=500)
Verbatim
e0“Turnera diffusa (Damiana), Gutierrezia sarothrae (Hierba de San Nicolas), and Leucophyllum frutescens (Cenizo) present the largest content of phenolic compounds and high antioxidant activity”
Claim · model-written summary
The highest antioxidant activity for T. diffusa occurred at a solid/liquid ratio of 1:50 g/mL.
- Taxon
- T. diffusa
Turnera diffusae0 - Outcome
- antioxidant activitye0
- Direction
- higheste0
- Value
- 1:50 g/mLe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The highest values of antioxidant activity were achieved using a solid/liquid ratio of 1:50 g/mL for T. diffusa and G. sarothrae and 1:25 mg/mL for L. frutescens”
Claim · model-written summary
The highest antioxidant activity for G. sarothrae occurred at a solid/liquid ratio of 1:50 g/mL.
- Taxon
- G. sarothrae
Gutierrezia sarothraee0 - Outcome
- antioxidant activitye0
- Direction
- higheste0
- Value
- 1:50 g/mLe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The highest values of antioxidant activity were achieved using a solid/liquid ratio of 1:50 g/mL for T. diffusa and G. sarothrae and 1:25 mg/mL for L. frutescens”
Claim · model-written summary
The highest antioxidant activity for L. frutescens occurred at a ratio of 1:25 mg/mL.
- Taxon
- L. frutescens
Leucophyllum frutescense0 - Outcome
- antioxidant activitye0
- Direction
- higheste0
- Value
- 1:25 mg/mLe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Leucophyllum_frutescens.jpg?width=500)
Verbatim
e0“The highest values of antioxidant activity were achieved using a solid/liquid ratio of 1:50 g/mL for T. diffusa and G. sarothrae and 1:25 mg/mL for L. frutescens”
Claim · model-written summary
Maceration was most suitable for extracting antioxidant compounds from T. diffusa.
- Taxon
- T. diffusa
Turnera diffusae0 - Treatment
- maceration methode0
- Outcome
- extracting antioxidant compoundse0
- Direction
- most suitablee0
- Comparator
- ultrasound-assisted extractione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The maceration method was the most suitable for extracting antioxidant compounds from T. diffusa and L. frutescens, while ultrasound-assisted extraction was more efficient for G. sarothrae”
Claim · model-written summary
Maceration was most suitable for extracting antioxidant compounds from L. frutescens.
- Taxon
- L. frutescens
Leucophyllum frutescense0 - Treatment
- maceration methode0
- Outcome
- extracting antioxidant compoundse0
- Direction
- most suitablee0
- Comparator
- ultrasound-assisted extractione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Leucophyllum_frutescens.jpg?width=500)
Verbatim
e0“The maceration method was the most suitable for extracting antioxidant compounds from T. diffusa and L. frutescens, while ultrasound-assisted extraction was more efficient for G. sarothrae”
Claim · model-written summary
Ultrasound-assisted extraction was more efficient for G. sarothrae.
- Taxon
- G. sarothrae
Gutierrezia sarothraee0 - Treatment
- ultrasound-assisted extractione0
- Outcome
- extractione0
- Direction
- more efficiente0
- Comparator
- maceration methode0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The maceration method was the most suitable for extracting antioxidant compounds from T. diffusa and L. frutescens, while ultrasound-assisted extraction was more efficient for G. sarothrae”
Claim · model-written summary
HPLC-MS identified phenolic compounds in the plant extracts.
- Outcome
- presence of important phenolic compoundse0
Not reportedTaxon
Verbatim
e0“The HPLC-MS analysis showed the presence of important phenolic compounds”