Comparative investigation of the sweet and bitter orange essential oil (Citrus sinensis and Citrus aurantium)

The volatile fraction composition of commercially produced sweet and bitter orange oil from fruit peels was studied using GC-MS. More than fifty components were identified in the oils using their mass spectra and linear retention indices. The monoterpene limonene was the most abundant component even though not in a quantity expected for a fresh orange essential oil. Aldehydes, followed by alcohols and esters, were the main components in the oxygenated fraction. Aldehydes were the major oxygenated components in the sweet orange oil, whereas alcohols and esters were present in higher amounts in the bitter orange oil. Among them, nonanal, decanal and linalool are the most important components for the flavour of sweet orange oil and carvon is the most important ketone for the flavour of bitter orange oil in combination with the other components. The amount of carvon gives a good indication about the freshness of the oil and the quantities of α-pinene and β-pinene, sabinene and myrcene give an indication about the natural or artificially changed composition of the essential oils.

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STUDYING THE CHEMICAL COMPOSITION OF ESSENTIAL OIL RECEIVED FROM FRUITS OF PRANGOS ODON-TALGICA WILD-GROWING IN ASTRAKHAN REGION

chemistry of plant raw material ◽

10.14258/jcprm.2019034621 ◽

2019 ◽

pp. 95-101

Author(s):

Anatoliy Valeriyevich Velikorodov ◽

Vladimir Nikolayevich Pilipenko ◽

Tat'yana Alekseyevna Pilipenko ◽

Sergey Viktorovich Malyi

Keyword(s):

Chemical Composition ◽

Essential Oil ◽

Solid Phase ◽

Raw Materials ◽

Retention Indices ◽

Gas Liquid Chromatography ◽

Linear Retention Indices ◽

Chromatographic Peaks ◽

Main Components ◽

Methods Of Isolation

The chemical composition of Prangos odontalgica (Pall.) Herrnst. et. Heyn essential oil, which grows wild in the Astrakhan region, has not been practically studied, unlike other species of the genus Prangos, growing in Iran, Turkey and Uzbekistan. To obtain the essential oil, all parts of the plant (roots, stems, flowers, leaves, fruits) are used, as well as various methods of isolation (hydrodistillation, supercritical fluid extraction, solid-phase microextraction, and others). Essential oil from the fruit of Prangos odontalgica we obtained by the method of hydrodistillation. The duration of the hydrodistillation process, established experimentally on the basis of a study of the dynamics of change in the yield of essential oil over time, was 3 hours. The yield of essential oil in mass% by volume in terms of absolutely dry raw materials according to the results of a threefold determination is 0.07 ± 0.01%. The method of gas-liquid chromatography carried out a quantitative analysis of the main components of the essential oil Prangos odontalgica. The quantitative content of the components of the essential oil was calculated by the areas of gas chromatographic peaks without the use of correction factors. Qualitative analysis was performed by comparing linear retention indices. In the Prangos odontalgica essential oil, 38 substances were identified (88.4%). It contains sesquiterpenes (31.48%), terpenoids (19.2%), hydrocarbons (15.39%), carboxylic acids and their esters (10.86%), alcohols, phenols (8.84%). Among sesquiterpenes, the predominant components are γ-elemen (9.84%), bisabolol (9.41%), and among terpenoids – trans-nerolidol (3.90%) and linalyl isobutyrate (3.41%).

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STUDY OF CHEMICAL COMPOSITION OF TAMARIX RAMOSISSIMA ESSENTIAL OIL

chemistry of plant raw material ◽

10.14258/jcprm.2017042041 ◽

2017 ◽

pp. 117-121 ◽

Cited By ~ 2

Author(s):

Анатолий (Anatolij) Валериевич (Valerievich) Великородов (Velikorodov) ◽

Владимир (Vladimir) Николаевич (Nikolaevich) Пилипенко (Pilipenko) ◽

Татьяна (Tat'jana) Алексеевна (Alekseevna) Пилипенко (Pilipenko) ◽

Алексей (Aleksej) Георгиевич (Georgievich) Тырков (Tyrkov)

Keyword(s):

Essential Oil ◽

Steam Distillation ◽

Retention Indices ◽

Raw Material ◽

Tamarix Ramosissima ◽

Gas Liquid Chromatography ◽

Vegetative Period ◽

Sesquiterpene Hydrocarbons ◽

Linear Retention Indices ◽

Main Components

Samples of essential oil from Tamarix ramosissima plant growing in the Astrakhan region were obtained by steam distillation and the dependence of its yield on the vegetative period of the plant was studied. The duration of the process of steam distillation was established experimentally on the basis of a study of the dynamics of the change in the yield of essential oil in time. The yield of essential oil was determined in % by weight of absolutely dry raw material. The largest yield of essential oil was obtained from plants in the flowering phase (0,23–0,3%). By method of gas-liquid chromatography carried out a quantitative analysis of the main components of essential oil Tamarix ramosissima. The quantitative content of essential oil components was calculated from the areas of gas chromatography peaks without the use of correction factors. Qualitative analysis was carried out by comparing the linear retention indices. It was found that the composition of the essential oil of Tamarix is very specific. It includes hydrocarbons (9,51%), alcohols (3,46%), aldehydes (2,55%), monoterpene hydrocarbons (5,4%), oxygenated terpenes (23,06%), sesquiterpene hydrocarbons (1,48%), oxygenated diterpenoids (3,37%), and a significant amount of fatty acids and their esters (45,43%). The main components of the essential oil are tetrahydrogeranilacetone (21,35%), nonane (12,63%), decanoic (9,82%) acids and dihydroactin diolide (5,40%).

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On the genuineness of citrus essential oils. Part XLI. Italian bitter orange essential oil: Composition and detection of contamination and additions of oils and terpenes of sweet orange and of lemon

Flavour and Fragrance Journal ◽

10.1002/ffj.2730080106 ◽

1993 ◽

Vol 8 (1) ◽

pp. 25-33 ◽

Cited By ~ 21

Author(s):

Giovanni Dugo ◽

Antonella Verzera ◽

Ildefonsa Stagno d'Alcontres ◽

Antonella Cotroneo ◽

Rita Ficarra

Keyword(s):

Essential Oil ◽

Essential Oils ◽

Sweet Orange ◽

Essential Oil Composition ◽

Oil Composition ◽

Bitter Orange ◽

Citrus Essential Oils ◽

Orange Essential Oil

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COMBINED EFFECT OF STREPTOMYCIN AND SWEET ORANGE ESSENTIAL OIL TO MEMBRANE AND ACROSOME INTEGRITY BOER GOAT FROZEN SEMEN

Journal of Community Research and Service ◽

10.24114/jcrs.v3i2.12153 ◽

2019 ◽

Vol 3 (2) ◽

pp. 89

Author(s):

Sukma Aditya Sitepu ◽

Julia Marisa

Keyword(s):

Essential Oil ◽

Sweet Orange ◽

Membrane Integrity ◽

Boer Goat ◽

Randomized Design ◽

Frozen Semen ◽

Acrosome Integrity ◽

Completely Randomized Design ◽

Orange Essential Oil

One of factors that cause a bad quality of Boer Goat frozen semen is the growth of bacterial. This can be overcome by adding antibiotics such as streptomycin. To further suppress the growth of bacteria can be added other ingredients that contain antibacterials such as sweet orange essential oil. The purpose of this research is to know the percentage value of Membrane Integrity and Acrosome Integrity on Boer Goat frozen semen with addition sweet orange essential oil and streptomycin. The method used was experimental using Completely Randomized Design with 5 treatments and 5 replications. The treatment in this research is addition 0%, 0,25%; 0.5%; 0.75% and 1% sweet orange essential oil on tris yolk and streptomycin extender. The results showed the best treatment addition combination streptomycin and sweet orange essential oil to percentage Membrane Integrity and Acrosome Integrity is increase 1% sweet orange essential oil.Keywords: Boer Goat, essential oil, frozen semen, streptomycin, sweet orange.

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