Tags

Type your tag names separated by a space and hit enter

Isolation of volatile oil from thyme (Thymbra spicata) by steam distillation.
Nahrung. 2003 Aug; 47(4):252-5.N

Abstract

The effects of steam flow rate (1.03 and 0.64 L/h), distillation time, and particle size (0.50, 1.00, 2.05 mm) of Thymbra spicata on essential oil yield and sequence of extraction of compounds were studied. A logarithmic model fitted well to experimental data. The composition of the essential oil obtained by steam distillation was investigated for whole leaves only since the grinding had an adverse effect on yield. The oil obtained was very rich with respect to its carvacrol content. For both steam flow rates, oxygenated monoterpenes were recovered the most rapidly. Using whole leaves (2.05 mm) and a higher steam flow rate (1.03 L/h) for 75 min of distillation was chosen as the optimum which gives the lowest amount of monoterpene hydrocarbons, the complete recovery of oxygenated compounds, and the highest yield in a shorter time. Yield was 1.57% at this optimum condition. The oil was composed of 53.1% oxygenated compounds, 25.7% monoterpene hydrocarbons, 4.4% sesquiterpenes, and 14.1% p-cymene.

Authors+Show Affiliations

Hanci S
Middle East Technical University, Food Engineering Department, Ankara, Turkey.
Sahin S
No affiliation info available
Yilmaz L
No affiliation info available

MeSH

Chromatography, GasGas Chromatography-Mass SpectrometryOils, VolatileParticle SizePlant LeavesSteamThymus PlantTime Factors

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

13678264

Citation

Hanci, Serap, et al. "Isolation of Volatile Oil From Thyme (Thymbra Spicata) By Steam Distillation." Die Nahrung, vol. 47, no. 4, 2003, pp. 252-5.
Hanci S, Sahin S, Yilmaz L. Isolation of volatile oil from thyme (Thymbra spicata) by steam distillation. Nahrung. 2003;47(4):252-5.
Hanci, S., Sahin, S., & Yilmaz, L. (2003). Isolation of volatile oil from thyme (Thymbra spicata) by steam distillation. Die Nahrung, 47(4), 252-5.
Hanci S, Sahin S, Yilmaz L. Isolation of Volatile Oil From Thyme (Thymbra Spicata) By Steam Distillation. Nahrung. 2003;47(4):252-5. PubMed PMID: 13678264.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Isolation of volatile oil from thyme (Thymbra spicata) by steam distillation. AU - Hanci,Serap, AU - Sahin,Serpil, AU - Yilmaz,Levent, PY - 2003/9/19/pubmed PY - 2003/12/24/medline PY - 2003/9/19/entrez SP - 252 EP - 5 JF - Die Nahrung JO - Nahrung VL - 47 IS - 4 N2 - The effects of steam flow rate (1.03 and 0.64 L/h), distillation time, and particle size (0.50, 1.00, 2.05 mm) of Thymbra spicata on essential oil yield and sequence of extraction of compounds were studied. A logarithmic model fitted well to experimental data. The composition of the essential oil obtained by steam distillation was investigated for whole leaves only since the grinding had an adverse effect on yield. The oil obtained was very rich with respect to its carvacrol content. For both steam flow rates, oxygenated monoterpenes were recovered the most rapidly. Using whole leaves (2.05 mm) and a higher steam flow rate (1.03 L/h) for 75 min of distillation was chosen as the optimum which gives the lowest amount of monoterpene hydrocarbons, the complete recovery of oxygenated compounds, and the highest yield in a shorter time. Yield was 1.57% at this optimum condition. The oil was composed of 53.1% oxygenated compounds, 25.7% monoterpene hydrocarbons, 4.4% sesquiterpenes, and 14.1% p-cymene. SN - 0027-769X UR - https://www.unboundmedicine.com/medline/citation/13678264/Isolation_of_volatile_oil_from_thyme__Thymbra_spicata__by_steam_distillation_ DB - PRIME DP - Unbound Medicine ER -