Application of Comprehensive Two-Dimensional Gas Chromatography (GC×GC) to the Qualitative Analysis of Essential Oils

Dimandja, Jean Marie D.; Stanfill, Stephen B.; Grainger, James; Patterson, Donald G.

doi:10.1002/(sici)1521-4168(20000301)23:3<208::aid-jhrc208>3.0.co;2-i

Cited by 110 publications

(39 citation statements)

References 22 publications

(13 reference statements)

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“…Studies performed using broiler chicks reported either no differences in feed intake with the addition of dried peppermint (assumed to provide 70 mg menthol/kg diet; Ocak et al, 2008) to the diet (Toghyani et al, 2010) or a decrease with the addition of 1.5% dried peppermint to the diets of broilers 6 wk of age (Al-Kassie, 2010). Bioactivity of menthol in peppermint depends on plant variety, geographical location, plant maturity, climate, and processing conditions (Gherman et al, 2000) and because of these factors, peppermint can contain 33 to 60% menthol (Dimandja et al, 2000;Gherman et al, 2000) and peppermint oil can contain up to 85% menthol. Difficulty arises when comparing studies using peppermint or peppermint oil, as some authors did not indicate the essential oil composition.…”

Section: Growth Performancementioning

confidence: 98%

Effects of crystalline menthol on blood metabolites in Holstein steers and in vitro volatile fatty acid and gas production1

Bibber-Krueger

Miller

Aperce

et al. 2016

Journal of Animal Science

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Fifty-two Holstein steers (573 ± 9.92 kg BW) were used to determine if oral administration of crystalline menthol would induce changes in endogenous secretions of IGF-1 and circulating concentrations of glucose, lactate, and plasma urea nitrogen (PUN). Steers were blocked by BW and assigned within block to treatment. Treatments consisted of 0, 0.003, 0.03, or 0.3% crystalline menthol (DM basis) added to the diet. Animals were housed in individual, partially covered pens equipped with feed bunks and automatic water fountains. On d 1 of the experiment, blood samples were obtained via jugular venipuncture at 0, 6, 12, 18, and 24 h after feeding. Treatment administration commenced on d 2, and blood samples were again drawn at 0, 6, 12, 18, and 24 h after feeding. This bloodsampling schedule was repeated on d 9, 16, 23, and 30. Plasma was analyzed for PUN, glucose, and lactate concentrations. Serum was used to analyze IGF-1 concentration. Body weights were measured on d 1, 9, 16, 23, and 30. To accompany the live animal phase, in vitro fermentations were performed using ruminal fluid cultures. Measurements included VFA concentrations and fermentative gas production for cultures containing crystalline menthol at 0, 0.003, 0.03, or 0.3% of substrate DM. Addition of menthol to the diet of steers resulted in a treatment × day interaction (P < 0.01) for concentrations of IGF-1, PUN, and plasma glucose. Cattle fed 0 and 0.003% menthol had greater serum IGF-1 concentrations on d 2 compared with steers fed 0.03% menthol. Steers fed 0% menthol had greater serum IGF-1 concentrations on d 9 compared with steers fed 0.03 and 0.3% menthol, whereas no differences were observed on d 23 or 30. Plasma glucose was similar among treatments until d 23, when steers supplemented with 0.03% menthol had lower glucose concentrations. Plasma urea nitrogen concentrations were not different among treatments; however, PUN concentrations varied by day. A linear response was detected for BW (P = 0.03), with steers consuming 0% menthol having the greatest BW and steers that consumed 0.3% menthol having the lightest BW until d 30. A menthol × day interaction was observed for daily feed deliveries (P < 0.01): cattle fed 0.3% menthol consumed less feed from d 5 through 12. Furthermore, in vitro gas production and VFA concentrations were unaffected by addition of menthol (P > 0.21). In conclusion, menthol supplementation minimally affected blood parameters associated with growth or ruminal fermentative activity.

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Section: Growth Performancementioning

confidence: 98%

Effects of crystalline menthol on blood metabolites in Holstein steers and in vitro volatile fatty acid and gas production1

Bibber-Krueger

Miller

Aperce

et al. 2016

Journal of Animal Science

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“…The principles, practical and theoretical aspects, and the most significant developments of GC×GC were reviewed by Mondello et al (2008). There are several reports of GCxGC used for determining essential oils (Dimandja et al, 2000;Shellie et al, 2003;Shellie et al, 2001). …”

Section: Two-dimensional Gcmentioning

confidence: 99%

Gas Chromatographic Analysis of Plant and Insect Surface Compounds: Cuticular Waxes and Terpenoids

Szafranek¹,

Paszkiewicz²,

Gołębiowski³

et al. 2012

Gas Chromatography in Plant Science, Wine Technology, Toxicology and Some Specific Applications

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“…69 Dada a presença de componentes-chave em concentrações extremamente baixas, que não são detectados ou então coeluem com compostos majoritários, o incremento de separação e de detectabilidade proporcionado pela GC × GC é especialmente desejável. 70 O primeiro relato de uso de GC × GC-FID para análises de óleos essenciais foi feito por Dimandja et al, 71 que estudaram óleos de duas espécies de hortelã (Mentha piperita e M. spicata). Em comparação com GC/MS convencional, o número de compostos detectáveis foi aumentado consideravelmente (para M. piperita, de 30 para 89).…”

Section: Aplicações De Gc × Gcunclassified

Cromatografia gasosa bidimensional abrangente (GC × GC)

Pedroso¹,

Godoy²,

Fidélis³

et al. 2009

Quím. Nova

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Recebido em 23/11/07; aceito em 30/7/08; publicado na web em 18/12/08 COMPREHENSIVE TWO-DIMENSIONAL GAS CHROMATOGRAPHY (GC × GC). This paper presents the fundamental principles, instrumentation and selected applications of comprehensive two-dimensional gas chromatography (GC × GC). In this technique, introduced in 1991, two capillary columns are coupled and proper modulating interfaces continuously collect the eluate from the first column, transferring it to the second column. The result is a geometric increment in the chromatographic resolution, ensuring separation of extremely complex mixtures in time periods shorter or comparable to those of analysis using conventional gas chromatography and with better detectabilities and sensitivities.

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Application of Comprehensive Two-Dimensional Gas Chromatography (GC×GC) to the Qualitative Analysis of Essential Oils

Cited by 110 publications

References 22 publications

Effects of crystalline menthol on blood metabolites in Holstein steers and in vitro volatile fatty acid and gas production1

Effects of crystalline menthol on blood metabolites in Holstein steers and in vitro volatile fatty acid and gas production1

Gas Chromatographic Analysis of Plant and Insect Surface Compounds: Cuticular Waxes and Terpenoids

Cromatografia gasosa bidimensional abrangente (GC × GC)

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