scholarly journals The impact of the harvesting period and drying conditions on the essential oil yield of Rosmarinus officinalis, Thymus satureioides and Origanum compactum from the Taza-Taounate region

2021 ◽  
Vol 2021 (3) ◽  
Keyword(s):  
Essential Oil ◽  
Rosmarinus Officinalis ◽  
Oil Yield ◽  
Origanum Compactum ◽  
Thymus Satureioides ◽  
Drying Conditions ◽  
The Impact ◽  
Essential Oil Yield

scholarly journals Relationship among Agroclimatic Variables, Soil and Leaves Nutrient Status with the Yield and Main Composition of Kaffir Lime (Citrus hystrix DC) Leaves Essential Oil

Metabolites ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 260
Author(s):  
Darda Efendi ◽  
Rahmat Budiarto ◽  
Roedhy Poerwanto ◽  
Edi Santosa ◽  
Andria Agusta
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Soil Ph ◽  
Pearson Correlation ◽  
Nutrient Status ◽  
Oil Yield ◽  
Annual Rainfall ◽  
Relative Percentage ◽  
The Impact ◽  
Essential Oil Yield

Previous studies revealed the impact growing location has on the quantity and quality of essential oils derived from numerous Citrus spp., except on the kaffir lime. This study aims to analyze the relationship shared by agroclimatic variables and soil-plant nutrient status to kaffir lime leaves essential oil yield and main composition. The experiment was conducted between February and April 2019 in four growing locations, namely Bogor (6°36′36″ S, 106°46′47″ E), West Bandung (6°48′12″ S, 107°39′16″ E), Pasuruan (7°45′5″ S, 112°40′6″ E) and Tulungagung (8°6′27″ S, 112°0′35″ E). The highest essential oil yield was obtained from Bogor (1.5%), while the lowest one was from Tulungagung (0.78%). The yield was positively and significantly correlated with the rainfall, soil organic carbon, soil pH, and macronutrient levels, i.e., nitrogen, phosphorus, and magnesium. Citronellal, the major component in metabolites’ profile of kaffir lime leaves essential oils, was significantly affected by the growing location. The absolute content of citronellal was positively and significantly correlated with the actual soil pH and leaf Ca content; furthermore, it negatively correlated with the leaf content of Fe, Mn, Zn, Cu. Pearson correlation analysis also showed (i) a negative significant correlation between the relative percentage of citronellol and annual rainfall intensity; (ii) a negative significant correlation between altitude and relative percentage of caryophyllene, and (iii) a positive significant correlation between the relative percentage of linalool and leaf K content.

scholarly journals Essential oil yield and composition of native species of the Myrtaceae family from “Campos Gerais” of the Atlantic Forest in Parana State

2019 ◽  
Vol 41 ◽  
pp. e45
Author(s):  
Luiz Everson da Silva ◽  
Wanderlei Do Amaral ◽  
Cícero Deschamps ◽  
Luiz Antonio Biasi ◽  
Humberto Ribeiro Bizzo ◽  
...  
Keyword(s):  
Essential Oil ◽  
Atlantic Forest ◽  
Native Species ◽  
Oil Extraction ◽  
Essential Oil Composition ◽  
Oil Yield ◽  
Oil Composition ◽  
Botanical Species ◽  
Drying Conditions ◽  
Essential Oil Yield

This work aimed to evaluate the essential oil yield and composition of the species Myrciaria delicatula, Campomanesia xantocarpha, Campomanesia aurea, Calyptranthes clusiifolia, Myrcia splendens, Eugenia osoriana, Myrciaria tenella, Myrceugenia reitzii, Calyptranthes concinna e Myrcia arborensis from a segment of the Atlantic Forest of Parana State. The sample collections for essential oil extraction, photographic records and herbarium specimen’s preparation for botanical species identification were made at the Private Reserve of Natural Heritage (PRNP) Butuguara in Palmeira (PR), with “Campos Gerais” formations.  Myrceugenia reitzii showed eesential oil yield superior to other species and the essential oil yield of all species increased after drying. The chemical composition in the samples showed mono and sesquiterpenes, being the sesquiterpenes in higher percentages. The drying conditions affected the essential oil composition of the for the majority of the evaluated species

scholarly journals Chemotyping the Essential Oil in Different Rosemary (Rosmarinus officinalis L.) Plants grown in Kashmir Valley

2017 ◽  
Vol 14 (3) ◽  
pp. 1025-1031 ◽  
Author(s):  
Tawheed Amin ◽  
H. R. Naik ◽  
Syed Zameer Hussain
Keyword(s):  
Gas Chromatography ◽  
Essential Oil ◽  
Chemical Constituents ◽  
Rosmarinus Officinalis ◽  
Oil Yield ◽  
Kashmir Valley ◽  
Plant Samples ◽  
Rosmarinus Officinalis L ◽  
Essential Oil Yield

ABSTRACT: The Aim of the Present Study Was to Evaluate the Yield, Chemical Constituents and Determine the Chemotype of the Essential Oil Obtained from Different Rosemary Plants Growing in Different Accessions of Rosemary Fields. About four Plant Samples Were Analyzed for Essential Oil Yield and the Essential Oil Yield Varied from 0.88% To 1.2%. the Essential Oil Samples Were Further Analyzed by Gas Chromatography (GC) for the Purpose of Identification of Chemical Constituents Present in Them. It Was Contended from the Results That the Selected Plants Differed from Each Other in Terms of Chemical Constituents.Camphor Content Was Foundin Higher Amount in All the Foursamples, Thus it Could Be Inferred That the Plants Are Camphor Chemotype.

scholarly journals ESSENTIAL OIL YIELD AND COMPOSITION OF NATIVE SPECIES OF THE MYRTACEAE FAMILY FROM “CAMPOS GERAIS” OF THE ATLANTIC FOREST IN PARANA STATE

2018 ◽  
Vol 40 ◽  
pp. 1
Author(s):  
Wanderlei Do Amaral ◽  
Cícero Deschamps ◽  
Luiz Everson Da Silva ◽  
Humberto R. Bizzo ◽  
Marco Antonio Silva Pinto ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Gas Phase ◽  
Atlantic Forest ◽  
Native Species ◽  
Essential Oil Composition ◽  
Oil Yield ◽  
Oil Composition ◽  
Drying Conditions ◽  
Essential Oil Yield

The Myrtaceae family has great occurrence in Brazil, mainly in the Atlantic Forest of the South and Southeast regions and presents potential for essential oil production. This work aimed to evaluate the essential oil yield and composition of the species Myrciaria delicatula, Campomanesia xantocarpha, Campomanesia aurea, Calyptranthes clusiifolia, Myrcia splendens, Eugenia osoriana, Myrciaria tenella, Myrceugenia reitzii, Calyptranthes concinna e Myrcia arborensis from a segment of the Atlantic Forest of Parana State. The essential oil extraction was carried out by hydrodistillation of fresh and dried leaves using a Clevenger type apparatus and the chemical composition was analyzed by gas phase chromatography coupled with mass spectrometry (GC/MS). Myrceugenia reitzii showed eesential oil yield superior to other species and the essential oil yield of all species increased after drying. The chemical composition in the samples showed mono and sesquiterpenes , being the sesquiterpenes in higher percentages. The drying conditions affected the essential oil  composition of the for the majority of the evaluated species.

scholarly journals Identification of VOCs in essential oils extracted using ultrasound- and microwave-assisted methods from sweet cherry flower

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Huimin Zhang ◽  
Hongguang Yan ◽  
Quan Li ◽  
Hui Lin ◽  
Xiaopeng Wen
Keyword(s):  
Essential Oil ◽  
Sweet Cherry ◽  
Dimethyl Sulfide ◽  
Solid Phase ◽  
Oil Yield ◽  
Gas Chromatography Mass Spectrometry ◽  
Process Conditions ◽  
Important Indicator ◽  
Microwave Assisted ◽  
Essential Oil Yield

AbstractThe floral fragrance of plants is an important indicator in their evaluation. The aroma of sweet cherry flowers is mainly derived from their essential oil. In this study, based on the results of a single-factor experiment, a Box–Behnken design was adopted for ultrasound- and microwave-assisted extraction of essential oil from sweet cherry flowers of the Brooks cultivar. With the objective of extracting the maximum essential oil yield (w/w), the optimal extraction process conditions were a liquid–solid ratio of 52 mL g−1, an extraction time of 27 min, and a microwave power of 435 W. The essential oil yield was 1.23%, which was close to the theoretical prediction. The volatile organic compounds (VOCs) of the sweet cherry flowers of four cultivars (Brooks, Black Pearl, Tieton and Summit) were identified via headspace solid phase microextraction (SPME) and gas chromatography–mass spectrometry (GC–MS). The results showed that a total of 155 VOCs were identified and classified in the essential oil from sweet cherry flowers of four cultivars, 65 of which were shared among the cultivars. The highest contents of VOCs were aldehydes, alcohols, ketones and esters. Ethanol, linalool, lilac alcohol, acetaldehyde, (E)-2-hexenal, benzaldehyde and dimethyl sulfide were the major volatiles, which were mainly responsible for the characteristic aroma of sweet cherry flowers. It was concluded that the VOCs of sweet cherry flowers were qualitatively similar; however, relative content differences were observed in the four cultivars. This study provides a theoretical basis for the metabolism and regulation of the VOCs of sweet cherry flowers.

scholarly journals Essential Oils of Four Virginia Mountain Mint (Pycnanthemum virginianum) Varieties Grown in North Alabama

Plants ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 1397
Author(s):  
William N. Setzer ◽  
Lam Duong ◽  
Trang Pham ◽  
Ambika Poudel ◽  
Cuong Nguyen ◽  
...  
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
University Research ◽  
Oil Yield ◽  
Research Station ◽  
Continuous Extraction ◽  
Chromatographic Techniques ◽  
Relative Differences ◽  
Essential Oil Yield ◽  
Very High

Virginia mountain mint (Pycnanthemum virginianum) is a peppermint-flavored aromatic herb of the Lamiaceae and is mainly used for culinary, medicinal, aromatic, and ornamental purposes. North Alabama’s climate is conducive to growing mint for essential oils used in culinary, confectionery, and medicinal purposes. There is, however, a need for varieties of P. virginianum that can be adapted and easily grown for production in North Alabama. Towards this end, four field-grown varieties with three harvesting times (M1H1, M1H2, M1H3; M2H1, M2H2, M2H3; M3H1, M3H2, M3H3, M4H1, M4H2, M4H3) were evaluated for relative differences in essential oil yield and composition. Thirty-day-old greenhouse-grown plants of the four varieties were transplanted on raised beds in the field at the Alabama A & M University Research Station in North Alabama. The plots were arranged in a randomized complete block with three replications. The study’s objective was to compare the four varieties for essential oil yield and their composition at three harvest times, 135, 155, and 170 days after planting (DAP). Essential oils were obtained by hydrodistillation with continuous extraction with dichloromethane using a Likens–Nickerson apparatus and analyzed by gas chromatographic techniques. At the first harvest, the essential oil yield of the four varieties showed that M1H1 had a yield of 1.15%, higher than M2H1, M3H1, and M4H1 with 0.91, 0.76, and 1.03%, respectively. The isomenthone concentrations increased dramatically through the season in M1 (M1H1, M1H2, M1H3) by 19.93, 54.7, and 69.31%, and M3 (M3H1, M3H2, M3H3) by 1.81, 48.02, and 65.83%, respectively. However, it increased only slightly in M2 and M4. The thymol concentration decreased slightly but not significantly in all four varieties; the thymol in M2 and M4 was very high compared with M1 and M3. The study showed that mountain mint offers potential for production in North Alabama. Two varieties, M1 and M3, merit further studies to determine yield stability, essential oil yield, composition, and cultivation development practices.

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