Laurus nobilis 1,280 claims

species · family Lauraceae · green plant · NCBI Taxonomy ↗

Common name: bay laurel — Also written in claims: bay laurel · laurel · bay laurels · L. nobilis L · Sweet bay tree · bay-laurel

32 spellings

Questions studied on this organism6 questions11 papers

Laurus nobilis · picture from its Wikimedia Commons categoryAcabashi · CC BY-SA 4.0 · Wikimedia Commons ↗

1,280 claims

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Observationobservedoriginal resultmeasured

Claim · model-written summary

EO yield ranged from 0.5% to 1.5% (v/w).

Taxon: Laurus nobilisLaurus nobilise0
Outcome: EO yieldse1
Value: 0.5% to 1.5% (v/w)e1

Verbatim

e0
“Laurus nobilis L. (bay laurel) is among the most economically and pharmacologically significant aromatic plants cultivated in Türkiye”
✓ located verbatim in the source · abstract, characters 9–142

e1
“EO yields ranged from 0.5% to 1.5% (v/w)”
✓ located verbatim in the source · abstract, characters 824–864

Title

Comparative chemical profiling of Laurus nobilis L. leaf essential oils based on ontogenetic and locational variabilities: investigation of antioxidant and antimicrobial activities

Omer Elkiran; Aysel Veyisoglu; Cumhur Avsar; et al. Journal of Food Measurement & Characterization 2026. doi:10.1007/s11694-026-04531-3

Other claims from this paper (16)

Observation GC-MS identified 10–22 components per essential oil sample.
Observation Identified components accounted for 85.7–98.9% of total composition.
Observation Eucalyptol was a dominant constituent at 43.9–65.5%.
Observation α-terpinyl acetate was a dominant constituent at 7.7–15.4%.
Observation Sabinene was a dominant constituent at 2.4–12.6%.
Observation Locational variation was statistically significant for α-pinene.
Observation Locational variation was statistically significant for sabinene.
Observation Locational variation was statistically significant for linalool.
Observation Temporal variation was statistically significant for eucalyptol.
Observation Temporal variation was statistically significant for α-terpinyl acetate.
Observation DPPH assays gave IC50 values of 119.8–426.8 µL/mL.
Observation The Türkeli-November sample showed the strongest DPPH radical-scavenging activity, with IC50 of 119.8 µL/mL.
Observation Neither locational nor overall temporal differences in DPPH activity reached significance.
Observation The lowest MIC of 320 µg/L was recorded against Bacillus spp. and Klebsiella pneumoniae.
Observation Locational variation was significant only for Enterococcus faecalis.
Association Geographical location was a more consistent source of compositional variability than the ontogenetic factor.

Observationobservedoriginal resultmeasured

Claim · model-written summary

GC-MS identified 10–22 components per essential oil sample.

Taxon: Laurus nobilisLaurus nobilise0
Outcome: components per samplee1
Value: 10–22e1

Verbatim

e0
“Laurus nobilis L. (bay laurel) is among the most economically and pharmacologically significant aromatic plants cultivated in Türkiye”
✓ located verbatim in the source · abstract, characters 9–142

e1
“GC-MS analysis identified 10–22 components per sample”
✓ located verbatim in the source · abstract, characters 866–919

Title

Comparative chemical profiling of Laurus nobilis L. leaf essential oils based on ontogenetic and locational variabilities: investigation of antioxidant and antimicrobial activities

Omer Elkiran; Aysel Veyisoglu; Cumhur Avsar; et al. Journal of Food Measurement & Characterization 2026. doi:10.1007/s11694-026-04531-3

Other claims from this paper (16)

Observation EO yield ranged from 0.5% to 1.5% (v/w).
Observation Identified components accounted for 85.7–98.9% of total composition.
Observation Eucalyptol was a dominant constituent at 43.9–65.5%.
Observation α-terpinyl acetate was a dominant constituent at 7.7–15.4%.
Observation Sabinene was a dominant constituent at 2.4–12.6%.
Observation Locational variation was statistically significant for α-pinene.
Observation Locational variation was statistically significant for sabinene.
Observation Locational variation was statistically significant for linalool.
Observation Temporal variation was statistically significant for eucalyptol.
Observation Temporal variation was statistically significant for α-terpinyl acetate.
Observation DPPH assays gave IC50 values of 119.8–426.8 µL/mL.
Observation The Türkeli-November sample showed the strongest DPPH radical-scavenging activity, with IC50 of 119.8 µL/mL.
Observation Neither locational nor overall temporal differences in DPPH activity reached significance.
Observation The lowest MIC of 320 µg/L was recorded against Bacillus spp. and Klebsiella pneumoniae.
Observation Locational variation was significant only for Enterococcus faecalis.
Association Geographical location was a more consistent source of compositional variability than the ontogenetic factor.

Observationobservedoriginal resultmeasured

Claim · model-written summary

Identified components accounted for 85.7–98.9% of total composition.

Taxon: Laurus nobilisLaurus nobilise0
Outcome: total compositione1
Value: 85.7–98.9%e1
Qualifier: identified 10–22 components per samplee1

Verbatim

e0
“Laurus nobilis L. (bay laurel) is among the most economically and pharmacologically significant aromatic plants cultivated in Türkiye”
✓ located verbatim in the source · abstract, characters 9–142

e1
“identified 10–22 components per sample (85.7–98.9% of total composition)”
✓ located verbatim in the source · abstract, characters 881–953

Title

Comparative chemical profiling of Laurus nobilis L. leaf essential oils based on ontogenetic and locational variabilities: investigation of antioxidant and antimicrobial activities

Omer Elkiran; Aysel Veyisoglu; Cumhur Avsar; et al. Journal of Food Measurement & Characterization 2026. doi:10.1007/s11694-026-04531-3

Other claims from this paper (16)

Observation EO yield ranged from 0.5% to 1.5% (v/w).
Observation GC-MS identified 10–22 components per essential oil sample.
Observation Eucalyptol was a dominant constituent at 43.9–65.5%.
Observation α-terpinyl acetate was a dominant constituent at 7.7–15.4%.
Observation Sabinene was a dominant constituent at 2.4–12.6%.
Observation Locational variation was statistically significant for α-pinene.
Observation Locational variation was statistically significant for sabinene.
Observation Locational variation was statistically significant for linalool.
Observation Temporal variation was statistically significant for eucalyptol.
Observation Temporal variation was statistically significant for α-terpinyl acetate.
Observation DPPH assays gave IC50 values of 119.8–426.8 µL/mL.
Observation The Türkeli-November sample showed the strongest DPPH radical-scavenging activity, with IC50 of 119.8 µL/mL.
Observation Neither locational nor overall temporal differences in DPPH activity reached significance.
Observation The lowest MIC of 320 µg/L was recorded against Bacillus spp. and Klebsiella pneumoniae.
Observation Locational variation was significant only for Enterococcus faecalis.
Association Geographical location was a more consistent source of compositional variability than the ontogenetic factor.

Observationobservedoriginal resultmeasured

Claim · model-written summary

Eucalyptol was a dominant constituent at 43.9–65.5%.

Taxon: Laurus nobilisLaurus nobilise0
Outcome: eucalyptole1
Value: 43.9–65.5%e1

Verbatim

e0
“Laurus nobilis L. (bay laurel) is among the most economically and pharmacologically significant aromatic plants cultivated in Türkiye”
✓ located verbatim in the source · abstract, characters 9–142

e1
“eucalyptol (43.9–65.5%)”
✓ located verbatim in the source · abstract, characters 960–983

Title

Comparative chemical profiling of Laurus nobilis L. leaf essential oils based on ontogenetic and locational variabilities: investigation of antioxidant and antimicrobial activities

Omer Elkiran; Aysel Veyisoglu; Cumhur Avsar; et al. Journal of Food Measurement & Characterization 2026. doi:10.1007/s11694-026-04531-3

Other claims from this paper (16)

Observation EO yield ranged from 0.5% to 1.5% (v/w).
Observation GC-MS identified 10–22 components per essential oil sample.
Observation Identified components accounted for 85.7–98.9% of total composition.
Observation α-terpinyl acetate was a dominant constituent at 7.7–15.4%.
Observation Sabinene was a dominant constituent at 2.4–12.6%.
Observation Locational variation was statistically significant for α-pinene.
Observation Locational variation was statistically significant for sabinene.
Observation Locational variation was statistically significant for linalool.
Observation Temporal variation was statistically significant for eucalyptol.
Observation Temporal variation was statistically significant for α-terpinyl acetate.
Observation DPPH assays gave IC50 values of 119.8–426.8 µL/mL.
Observation The Türkeli-November sample showed the strongest DPPH radical-scavenging activity, with IC50 of 119.8 µL/mL.
Observation Neither locational nor overall temporal differences in DPPH activity reached significance.
Observation The lowest MIC of 320 µg/L was recorded against Bacillus spp. and Klebsiella pneumoniae.
Observation Locational variation was significant only for Enterococcus faecalis.
Association Geographical location was a more consistent source of compositional variability than the ontogenetic factor.

Observationobservedoriginal resultmeasured

Claim · model-written summary

α-terpinyl acetate was a dominant constituent at 7.7–15.4%.

Taxon: Laurus nobilisLaurus nobilise0
Outcome: α-terpinyl acetatee1
Value: 7.7–15.4%e1

Verbatim

e0
“Laurus nobilis L. (bay laurel) is among the most economically and pharmacologically significant aromatic plants cultivated in Türkiye”
✓ located verbatim in the source · abstract, characters 9–142

e1
“α-terpinyl acetate (7.7–15.4%)”
✓ located verbatim in the source · abstract, characters 985–1015

Title

Comparative chemical profiling of Laurus nobilis L. leaf essential oils based on ontogenetic and locational variabilities: investigation of antioxidant and antimicrobial activities

Omer Elkiran; Aysel Veyisoglu; Cumhur Avsar; et al. Journal of Food Measurement & Characterization 2026. doi:10.1007/s11694-026-04531-3

Other claims from this paper (16)

Observation EO yield ranged from 0.5% to 1.5% (v/w).
Observation GC-MS identified 10–22 components per essential oil sample.
Observation Identified components accounted for 85.7–98.9% of total composition.
Observation Eucalyptol was a dominant constituent at 43.9–65.5%.
Observation Sabinene was a dominant constituent at 2.4–12.6%.
Observation Locational variation was statistically significant for α-pinene.
Observation Locational variation was statistically significant for sabinene.
Observation Locational variation was statistically significant for linalool.
Observation Temporal variation was statistically significant for eucalyptol.
Observation Temporal variation was statistically significant for α-terpinyl acetate.
Observation DPPH assays gave IC50 values of 119.8–426.8 µL/mL.
Observation The Türkeli-November sample showed the strongest DPPH radical-scavenging activity, with IC50 of 119.8 µL/mL.
Observation Neither locational nor overall temporal differences in DPPH activity reached significance.
Observation The lowest MIC of 320 µg/L was recorded against Bacillus spp. and Klebsiella pneumoniae.
Observation Locational variation was significant only for Enterococcus faecalis.
Association Geographical location was a more consistent source of compositional variability than the ontogenetic factor.

Observationobservedoriginal resultmeasured

Claim · model-written summary

Sabinene was a dominant constituent at 2.4–12.6%.

Taxon: Laurus nobilisLaurus nobilise0
Outcome: sabinenee1
Value: 2.4–12.6%e1

Verbatim

e0
“Laurus nobilis L. (bay laurel) is among the most economically and pharmacologically significant aromatic plants cultivated in Türkiye”
✓ located verbatim in the source · abstract, characters 9–142

e1
“sabinene (2.4–12.6%)”
✓ located verbatim in the source · abstract, characters 1021–1041

Title

Comparative chemical profiling of Laurus nobilis L. leaf essential oils based on ontogenetic and locational variabilities: investigation of antioxidant and antimicrobial activities

Omer Elkiran; Aysel Veyisoglu; Cumhur Avsar; et al. Journal of Food Measurement & Characterization 2026. doi:10.1007/s11694-026-04531-3

Other claims from this paper (16)

Observation EO yield ranged from 0.5% to 1.5% (v/w).
Observation GC-MS identified 10–22 components per essential oil sample.
Observation Identified components accounted for 85.7–98.9% of total composition.
Observation Eucalyptol was a dominant constituent at 43.9–65.5%.
Observation α-terpinyl acetate was a dominant constituent at 7.7–15.4%.
Observation Locational variation was statistically significant for α-pinene.
Observation Locational variation was statistically significant for sabinene.
Observation Locational variation was statistically significant for linalool.
Observation Temporal variation was statistically significant for eucalyptol.
Observation Temporal variation was statistically significant for α-terpinyl acetate.
Observation DPPH assays gave IC50 values of 119.8–426.8 µL/mL.
Observation The Türkeli-November sample showed the strongest DPPH radical-scavenging activity, with IC50 of 119.8 µL/mL.
Observation Neither locational nor overall temporal differences in DPPH activity reached significance.
Observation The lowest MIC of 320 µg/L was recorded against Bacillus spp. and Klebsiella pneumoniae.
Observation Locational variation was significant only for Enterococcus faecalis.
Association Geographical location was a more consistent source of compositional variability than the ontogenetic factor.

Observationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Locational variation was statistically significant for α-pinene.

Taxon: Laurus nobilisLaurus nobilise0
Outcome: α-pinenee1
Value: p = 0.002e1
Qualifier: Locational variatione1

Verbatim

e0
“Laurus nobilis L. (bay laurel) is among the most economically and pharmacologically significant aromatic plants cultivated in Türkiye”
✓ located verbatim in the source · abstract, characters 9–142

e1
“Locational variation was statistically significant for six constituents including α-pinene ( p = 0.002), sabinene ( p < 0.001), and linalool ( p = 0.026)”
✓ located verbatim in the source · abstract, characters 1068–1221

Title

Comparative chemical profiling of Laurus nobilis L. leaf essential oils based on ontogenetic and locational variabilities: investigation of antioxidant and antimicrobial activities

Omer Elkiran; Aysel Veyisoglu; Cumhur Avsar; et al. Journal of Food Measurement & Characterization 2026. doi:10.1007/s11694-026-04531-3

Other claims from this paper (16)

Observation EO yield ranged from 0.5% to 1.5% (v/w).
Observation GC-MS identified 10–22 components per essential oil sample.
Observation Identified components accounted for 85.7–98.9% of total composition.
Observation Eucalyptol was a dominant constituent at 43.9–65.5%.
Observation α-terpinyl acetate was a dominant constituent at 7.7–15.4%.
Observation Sabinene was a dominant constituent at 2.4–12.6%.
Observation Locational variation was statistically significant for sabinene.
Observation Locational variation was statistically significant for linalool.
Observation Temporal variation was statistically significant for eucalyptol.
Observation Temporal variation was statistically significant for α-terpinyl acetate.
Observation DPPH assays gave IC50 values of 119.8–426.8 µL/mL.
Observation The Türkeli-November sample showed the strongest DPPH radical-scavenging activity, with IC50 of 119.8 µL/mL.
Observation Neither locational nor overall temporal differences in DPPH activity reached significance.
Observation The lowest MIC of 320 µg/L was recorded against Bacillus spp. and Klebsiella pneumoniae.
Observation Locational variation was significant only for Enterococcus faecalis.
Association Geographical location was a more consistent source of compositional variability than the ontogenetic factor.

Observationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Locational variation was statistically significant for sabinene.

Taxon: Laurus nobilisLaurus nobilise0
Outcome: sabinenee1
Value: p < 0.001e1
Qualifier: Locational variatione1

Verbatim

e0
“Laurus nobilis L. (bay laurel) is among the most economically and pharmacologically significant aromatic plants cultivated in Türkiye”
✓ located verbatim in the source · abstract, characters 9–142

e1
“Locational variation was statistically significant for six constituents including α-pinene ( p = 0.002), sabinene ( p < 0.001), and linalool ( p = 0.026)”
✓ located verbatim in the source · abstract, characters 1068–1221

Title

Comparative chemical profiling of Laurus nobilis L. leaf essential oils based on ontogenetic and locational variabilities: investigation of antioxidant and antimicrobial activities

Omer Elkiran; Aysel Veyisoglu; Cumhur Avsar; et al. Journal of Food Measurement & Characterization 2026. doi:10.1007/s11694-026-04531-3

Other claims from this paper (16)

Observation EO yield ranged from 0.5% to 1.5% (v/w).
Observation GC-MS identified 10–22 components per essential oil sample.
Observation Identified components accounted for 85.7–98.9% of total composition.
Observation Eucalyptol was a dominant constituent at 43.9–65.5%.
Observation α-terpinyl acetate was a dominant constituent at 7.7–15.4%.
Observation Sabinene was a dominant constituent at 2.4–12.6%.
Observation Locational variation was statistically significant for α-pinene.
Observation Locational variation was statistically significant for linalool.
Observation Temporal variation was statistically significant for eucalyptol.
Observation Temporal variation was statistically significant for α-terpinyl acetate.
Observation DPPH assays gave IC50 values of 119.8–426.8 µL/mL.
Observation The Türkeli-November sample showed the strongest DPPH radical-scavenging activity, with IC50 of 119.8 µL/mL.
Observation Neither locational nor overall temporal differences in DPPH activity reached significance.
Observation The lowest MIC of 320 µg/L was recorded against Bacillus spp. and Klebsiella pneumoniae.
Observation Locational variation was significant only for Enterococcus faecalis.
Association Geographical location was a more consistent source of compositional variability than the ontogenetic factor.

Observationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Locational variation was statistically significant for linalool.

Taxon: Laurus nobilisLaurus nobilise0
Outcome: linaloole1
Value: p = 0.026e1
Qualifier: Locational variatione1

Verbatim

e0
“Laurus nobilis L. (bay laurel) is among the most economically and pharmacologically significant aromatic plants cultivated in Türkiye”
✓ located verbatim in the source · abstract, characters 9–142

e1
“Locational variation was statistically significant for six constituents including α-pinene ( p = 0.002), sabinene ( p < 0.001), and linalool ( p = 0.026)”
✓ located verbatim in the source · abstract, characters 1068–1221

Title

Comparative chemical profiling of Laurus nobilis L. leaf essential oils based on ontogenetic and locational variabilities: investigation of antioxidant and antimicrobial activities

Omer Elkiran; Aysel Veyisoglu; Cumhur Avsar; et al. Journal of Food Measurement & Characterization 2026. doi:10.1007/s11694-026-04531-3

Other claims from this paper (16)

Observation EO yield ranged from 0.5% to 1.5% (v/w).
Observation GC-MS identified 10–22 components per essential oil sample.
Observation Identified components accounted for 85.7–98.9% of total composition.
Observation Eucalyptol was a dominant constituent at 43.9–65.5%.
Observation α-terpinyl acetate was a dominant constituent at 7.7–15.4%.
Observation Sabinene was a dominant constituent at 2.4–12.6%.
Observation Locational variation was statistically significant for α-pinene.
Observation Locational variation was statistically significant for sabinene.
Observation Temporal variation was statistically significant for eucalyptol.
Observation Temporal variation was statistically significant for α-terpinyl acetate.
Observation DPPH assays gave IC50 values of 119.8–426.8 µL/mL.
Observation The Türkeli-November sample showed the strongest DPPH radical-scavenging activity, with IC50 of 119.8 µL/mL.
Observation Neither locational nor overall temporal differences in DPPH activity reached significance.
Observation The lowest MIC of 320 µg/L was recorded against Bacillus spp. and Klebsiella pneumoniae.
Observation Locational variation was significant only for Enterococcus faecalis.
Association Geographical location was a more consistent source of compositional variability than the ontogenetic factor.

Observationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Temporal variation was statistically significant for eucalyptol.

Taxon: Laurus nobilisLaurus nobilise0
Outcome: eucalyptole1
Value: p < 0.001e1
Qualifier: Temporal variatione1

Verbatim

e0
“Laurus nobilis L. (bay laurel) is among the most economically and pharmacologically significant aromatic plants cultivated in Türkiye”
✓ located verbatim in the source · abstract, characters 9–142

e1
“Temporal variation was limited to eucalyptol ( p < 0.001) and α-terpinyl acetate ( p = 0.017)”
✓ located verbatim in the source · abstract, characters 1223–1316

Title

Comparative chemical profiling of Laurus nobilis L. leaf essential oils based on ontogenetic and locational variabilities: investigation of antioxidant and antimicrobial activities

Omer Elkiran; Aysel Veyisoglu; Cumhur Avsar; et al. Journal of Food Measurement & Characterization 2026. doi:10.1007/s11694-026-04531-3

Other claims from this paper (16)

Observation EO yield ranged from 0.5% to 1.5% (v/w).
Observation GC-MS identified 10–22 components per essential oil sample.
Observation Identified components accounted for 85.7–98.9% of total composition.
Observation Eucalyptol was a dominant constituent at 43.9–65.5%.
Observation α-terpinyl acetate was a dominant constituent at 7.7–15.4%.
Observation Sabinene was a dominant constituent at 2.4–12.6%.
Observation Locational variation was statistically significant for α-pinene.
Observation Locational variation was statistically significant for sabinene.
Observation Locational variation was statistically significant for linalool.
Observation Temporal variation was statistically significant for α-terpinyl acetate.
Observation DPPH assays gave IC50 values of 119.8–426.8 µL/mL.
Observation The Türkeli-November sample showed the strongest DPPH radical-scavenging activity, with IC50 of 119.8 µL/mL.
Observation Neither locational nor overall temporal differences in DPPH activity reached significance.
Observation The lowest MIC of 320 µg/L was recorded against Bacillus spp. and Klebsiella pneumoniae.
Observation Locational variation was significant only for Enterococcus faecalis.
Association Geographical location was a more consistent source of compositional variability than the ontogenetic factor.