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The chemical profile and antioxidant capacity of Juniperus virginiana , J. excelsa , and J. sabina essential oil (EO) fractions as a function of time was the subject of this study. The hypothesis was that, capturing EO in sequential timeframes during hydrodistillation would generate fractions containing unique compositions and antioxidant capacity. In J. virginiana , the highest limonene (43%) was found in the 0⁻5 min oil fraction, with safrole (37%) being highest in the 10⁻20 and 20⁻40 min fractions, and elemol (34%) being highest in the 160⁻240 min fraction. In J. excelsa , α-pinene (34-36%) was the highest in the 0⁻5 min fraction and in the control (non-stop 0⁻240 min distillation) oil, limonene (39%) was the highest in the 0⁻10 min fractions and cedrol (50-53%) was the highest in the 40⁻240 min fractions. In J. sabina , sabinene (80%) was highest in the 0⁻3 min fraction. The highest antioxidant capacity of J. virginiana was demonstrated by the 5⁻10 min fraction; the one in J. sabina by the 3⁻10 min fraction; and, the one in J. excelsa , by the control. The kinetics regression models that were developed can predict EO composition of the three juniper species eluted at different timeframes. Various industries could benefit from the results from this study.

Titel:	Hydrodistillation Extraction Kinetics Regression Models for Essential Oil Yield and Composition in Juniperus virginiana , J. excelsa , and J. sabina .
Autor/in / Beteiligte Person:	B Semerdjieva, I ; Shiwakoti, S ; L Cantrell, C ; D Zheljazkov, V ; Astatkie, T ; Schlegel, V ; Radoukova, T
Zeitschrift:	Molecules (Basel, Switzerland), Jg. 24 (2019-03-11), Heft 5
Veröffentlichung:	Basel, Switzerland : MDPI, c1995-, 2019
Medientyp:	academicJournal
ISSN:	1420-3049 (electronic)
DOI:	10.3390/molecules24050986
Schlagwort:	Antioxidants chemistry Antioxidants isolation & purification Antioxidants pharmacology Oils, Volatile pharmacology Phytochemicals analysis Phytochemicals chemistry Distillation methods Juniperus chemistry Oils, Volatile chemistry Oils, Volatile isolation & purification
Sonstiges:	Nachgewiesen in: MEDLINE Sprachen: English Publication Type: Journal Article Language: English [Molecules] 2019 Mar 11; Vol. 24 (5). <i>Date of Electronic Publication: </i>2019 Mar 11. MeSH Terms: Distillation* / methods ; Juniperus / chemistry ; Oils, Volatile / chemistry ; Oils, Volatile / *isolation & purification ; Antioxidants / chemistry ; Antioxidants / isolation & purification ; Antioxidants / pharmacology ; Oils, Volatile / pharmacology ; Phytochemicals / analysis ; Phytochemicals / chemistry References: J Agric Food Chem. 2002 Mar 27;50(7):1815-21. (PMID: 11902917) ; J Agric Food Chem. 2002 Jul 31;50(16):4437-44. (PMID: 12137457) ; Br J Dermatol. 2002 Dec;147(6):1212-7. (PMID: 12452873) ; World J Urol. 2002 Nov;20(5):285-93. (PMID: 12522584) ; Pest Manag Sci. 2004 Nov;60(11):1131-6. (PMID: 15532689) ; Commun Agric Appl Biol Sci. 2005;70(4):601-11. (PMID: 16628894) ; Bioresour Technol. 2007 Oct;98(14):2636-40. (PMID: 17141500) ; Planta Med. 1991 Aug;57(4):392-3. (PMID: 17226173) ; Phytochemistry. 2008 Jan;69(1):168-75. (PMID: 17709122) ; Evid Based Complement Alternat Med. 2007 Sep;4(3):313-9. (PMID: 17965761) ; Food Chem Toxicol. 2008 Nov;46 Suppl 11:S100-2. (PMID: 18640184) ; J Nat Med. 2012 Apr;66(2):292-301. (PMID: 22134420) ; Int J Mol Sci. 2012;13(7):8615-27. (PMID: 22942724) ; J Oleo Sci. 2012;61(10):537-46. (PMID: 23018851) ; Planta Med. 2012 Dec;78(18):1927-31. (PMID: 23154840) ; Iran J Pharm Res. 2011 Fall;10(4):799-810. (PMID: 24250416) ; Environ Entomol. 2014 Jun;43(3):762-6. (PMID: 24690252) ; PLoS One. 2014 Sep 09;9(9):e106057. (PMID: 25203255) ; Malar J. 2015 Mar 20;14:119. (PMID: 25885703) ; J Ethnopharmacol. 2016 Jun 5;185:289-99. (PMID: 27001625) ; Chem Biodivers. 2016 Jun;13(6):695-9. (PMID: 27119969) ; Environ Toxicol Pharmacol. 2016 Sep;46:270-276. (PMID: 27522546) ; Malar J. 2016 Sep 17;15:478. (PMID: 27639972) ; Chem Biodivers. 2017 Apr;14(4):. (PMID: 28028933) ; Food Chem. 2018 Oct 30;264:471-475. (PMID: 29853403) ; J Ethnopharmacol. 1995 Jun;46(3):133-52. (PMID: 7564412) ; Chem Pharm Bull (Tokyo). 1993 Sep;41(9):1604-7. (PMID: 8221975) Contributed Indexing: Keywords: cedrol; eastern red cedar; elemol; greek juniper; limonene; monoterpenes; sabinene; safrole; savin; α-pinene Substance Nomenclature: 0 (Antioxidants) ; 0 (Oils, Volatile) ; 0 (Phytochemicals) Entry Date(s): Date Created: 20190314 Date Completed: 20190621 Latest Revision: 20200225 Update Code: 20231215 PubMed Central ID: PMC6429388

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Hydrodistillation Extraction Kinetics Regression Models for Essential Oil Yield and Composition in Juniperus virginiana , J. excelsa , and J. sabina .