Analysis of essential oils of Origanum vulgare from six production areas of China and Pakistan

Gong, Hao; Liu, W.H.; Lv, Gudkova; Zhang, Xiaoxin

doi:10.1590/0102-695x2014241434

Cited by 41 publications

(29 citation statements)

References 15 publications

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“…HCA builds a hierarchy of clusters of data of varying similarity, typically represented by a dendrogram. Application of PCA and HCA to chromatographic data treatment has become popular in the last two decades (Coltro et al, 2005), and these approaches are currently widely applied in plant compound analyses (Chun et al, 2011;Zhang et al, 2013;Gong et al, 2014;Benevides et al, 2014). Thus, in addition to univariate analyses, we used multivariate analyses to gain insight into the similarity and dissimilarity of emission profiles among the treatments.…”

Section: Data Analyses and Interpretationmentioning

confidence: 99%

Induction of stress volatiles and changes in essential oil content and composition upon microwave exposure in the aromatic plant Ocimum basilicum

Lung

Soran

Opriş

et al. 2016

Science of The Total Environment

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Section: Data Analyses and Interpretationmentioning

confidence: 99%

Induction of stress volatiles and changes in essential oil content and composition upon microwave exposure in the aromatic plant Ocimum basilicum

Lung

Soran

Opriş

et al. 2016

Science of The Total Environment

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“…This phenomenon is widely described in current literature [8][9][10][11][12][13][14][15][16]. However, despite of commonly accepted taxonomy, some authors treat O. vulgare as a collective species and do not distinguish particular subspecies [17][18][19]. Such data, based only on essential oil composition excluding morphological characters, can confuse understanding the complex problem of oregano variability.…”

Section: Introductionmentioning

confidence: 99%

Morphological and chemical variability of common oregano (Origanum vulgare L. subsp. vulgare) occurring in eastern Poland

Kosakowska

Czupa

2018

Herba Polonica

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SummaryIntroduction: Common oregano is an important medicinal and aromatic plant, characterized by a high morphological and chemical variability.Objective: The aim of the work was to determine the diversity of 14 common oregano populations introduced intoex situconditions, in respect of morphological and developmental traits as well as content and composition of essential oil in herb.Methods: Observations and harvest of raw material were performed in the second year of plant vegetation. Morphological and developmental characters were estimated. Total content of essential oil was determined according to European Pharmacopoeia 8th. The composition of essential oil was carried out by gas chromatography.Results: Populations differed in respect of examined traits, i.a.: plant's height from 52.13 to 88.66 cm, number of stems per plant from 45.6 to 123.3, number of internodes per stem from 4.6 to 9.2. Fresh mass of herb was at a level of 249.0–896.6 g per plant. Total content of essential oil ranged from 0.35 to 0.87%. Sabinene, 1,8-cineole, linalool,p-cymene,β-caryophyllene and caryophyllene oxide were the dominant compounds in essential oil.Conclusions: Number of stems and fresh mass of herb differentiated examined populations at the highest degree. Most of populations were classified as a sabinyl chemotype rich in sesquiterpenes.

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“…The higher ash content of the benthic polyculture biomass resulted in higher ionic strength in the final algal hydrolysates (fermentation medium), which retarded the cell growth and compromised the terpene yield. Additionally, according to techno-economic analysis of the current state-of-the-art technologies for essential oil production, which are mainly based on water/solvent extraction, the extraction yield of essential oil ranged from 0.1% to 1% of plant tissue, corresponding to 1 mg-10 mg essential oil/ g plant tissue (26,27) based on the relatively low concentration of essential oils in plant tissue (28). Compared to the extraction yield of essential oil from plant tissue, the engineered strains in this study increased the terpene yield about 3~40 times, which makes it a promising alternative pathway for terpene production.…”

Section: Resultsmentioning

confidence: 99%

One-pot bioconversion of algae biomass into terpenes for advanced biofuels and bioproducts

Davis

2016

Algal Research

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Under robust algae growth conditions, algal carbohydrates and proteins typically comprise up to ~ 80% of the ash-free dry weight of microalgae biomass. Therefore, production of algal biofuel through comprehensive utilization of all algal components and the addition of high energy density fuel compounds with "fit for purpose" properties or high-value bioproducts will both diminish the process cost and improve the overall process feasibility. In this study, we firstly demonstrated the concept of a "one-pot" bioconversion of algal carbohydrate and protein into value-added terpene compounds as advanced biofuel and high value bioproducts to improve the overall process feasibility through the development of engineered microbial consortium. The consortium for caryophyllene production yielded the highest titer of total terpene, up to 507.4 mg/L, including 471 mg/L of sesquiterpene, 36.4 mg/L of monoterpene, and 124.4 mg/L of caryophyllene on algal hydrolysate from Nannochloropsis sp. Additionally, the consortium expressing chamigrene synthase produced 187 mg/L total terpene including 87 mg/L of monoterpene, 100 mg/L of sesquiterpene, and 62 mg/L chamigrene on hydrolysate from benthic polyculture biomass. Compared to the yields of terpene extracted from plant tissue, both consortia increased the terpene yield about 3~40 times, which makes it a promising alternative pathway for terpene production.

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Analysis of essential oils of Origanum vulgare from six production areas of China and Pakistan

Cited by 41 publications

References 15 publications

Induction of stress volatiles and changes in essential oil content and composition upon microwave exposure in the aromatic plant Ocimum basilicum

Induction of stress volatiles and changes in essential oil content and composition upon microwave exposure in the aromatic plant Ocimum basilicum

Morphological and chemical variability of common oregano (Origanum vulgare L. subsp. vulgare) occurring in eastern Poland

One-pot bioconversion of algae biomass into terpenes for advanced biofuels and bioproducts

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