The Chemical Composition of Some Mediterranean Citrus Oils

Boelens, M. H.; Jiménez, R

doi:10.1080/10412905.1989.9697776

Cited by 29 publications

(12 citation statements)

References 3 publications

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“…Table 7 compares the world major producing countries of bitter orange essential oil to the different growing locations of bitter orange essential oils studied in the literature. One can observe that even if Argentina, Haiti, Morocco, Paraguay and Uganda are in the top fifteen of the world major producing countries of bitter orange oil, to our knowledge the composition of the bitter orange peel cultivated in those countries has never been studied in the literature.…”

Section: Factors Influencing the Composition Of The Volatile Fractionmentioning

confidence: 99%

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Bitter orange peel essential oil: A review of the different factors and chemical reactions influencing its composition

Gaff

Decloux

Giampaoli

2020

Flavour & Fragrance J

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This review summarizes the findings and discusses the results on the different factors that can influence the bitter orange peel oil composition. Small changes in composition can result in noticeable modifications of the odour profile of the essential oil. The analysis method appears to have a crucial effect on the number of compounds identified in the essential oil. Growing location, cultivar, ripening stage, storage conditions and extraction methods are reported to impact the bitter orange essential oil. Bitter orange peel oil should be stored at −21°C to prevent changes in the composition and formation of artefacts when storing for a period of several months. The influence of cultivars should not be neglected, since a few cultivars differ a lot from the main cluster of Citrus aurantium L. The geranyl pyrophosphate forms most of the terpenes present in the bitter orange, especially limonene which is the majority compound, by the action of the terpene synthases during growing of the fruit. The extraction method can also be responsible for some differences in the composition due to the absence of water‐soluble compounds in cold‐pressed oils and to acid‐catalysed reactions in hydrodistilled oils such as the decomposition of the linalyl acetate forming many different terpene derivatives.

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Section: Factors Influencing the Composition Of The Volatile Fractionmentioning

confidence: 99%

“…Boelens and Jimenez33,51 extracted the peel oil by needle puncturing followed by centrifugation. Tables 4 and 5 compare the volatile composition of bitter orange essential oils obtained by cold pressing on an industrial scale and a laboratory scale respectively.…”

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Bitter orange peel essential oil: A review of the different factors and chemical reactions influencing its composition

Gaff

Decloux

Giampaoli

2020

Flavour & Fragrance J

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“…Most of the papers pertinent to sweet orange oil composition were reviewed by Sawamura (2,3) and Lawrence (4). A large number of papers deal with the composition of the volatile fraction of sweet orange oil and in many of them its differences in relation to the cultivars are reported with particular references to the different content of aliphatic aldehydes and linalool (5)(6)(7)(8)(9)(10), and the volatile components of bitter orange oil (11,12).…”

Section: Introductionmentioning

confidence: 99%

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

Kostadinović¹,

Стефова²,

Nikolova³

2005

Maced. Pharm. Bull.

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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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“…The previous publications on Italian orange oils are rather dated (20,21) or refer to a small number of samples (3,19), which are often laboratory prepared (22) or reported in studes that do not treat orange oils as the main subject (18).…”

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On the Genuineness of Citrus Essential Oils. Part XLIII. The Composition of the Volatile Fraction of Italian Sweet Orange Oils (Citrus sinensis(L.) Osbeck)

Dugo

Verzera

D'alcontres

et al. 1994

Journal of Essential Oil Research

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Publication details, including instructions for authors and subscription information:ABSTRACT: The composition of the volatile fraction of Italian sweet orange oil obtained from blond and blood pulp fruits has been studied by GC and GC/MS. The study has been carried out on 190 genuine oils obtained by "Pelatrice" and "FMC in-line" industrial processing during the 1991-92 season. More than 55 components have been identified in the oil, with limonene (ca. 95%) as the main component. Because of the relatively high percentage of octanal and decanal found in the oil, the carbonyl compounds are the most important components of the oxygenated fraction. The results obtained establish that the quantitative composition of sweet orange oil shows peculiar variations in many components during the season and greatly depends on the isolation procedure and the kind of fruit processed. Oil produced by the "Pelatrice" method has a lower monoterpene content and a higher aldehyde and alcohol content than the oil produced during the same time period by "FMC" process. Also, blood oils generally show a higher monoterpene content and a lower alcohol and aldehyde content than blond oils. In addition, early season and late season blond oils have a similar composition. While the amount of the other sesquiterpene hydrocarbons remains practically unchanged, the valencene content increases during the productive season mainly in blood oils. Esters, whose percentage does not reach 0.1%, also increase during the season; however, their content is probably not influenced by the oil isolation procedure or the kind of fruit from which the oil is obtained.

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The Chemical Composition of Some Mediterranean Citrus Oils

Cited by 29 publications

References 3 publications

Bitter orange peel essential oil: A review of the different factors and chemical reactions influencing its composition

Bitter orange peel essential oil: A review of the different factors and chemical reactions influencing its composition

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

On the Genuineness of Citrus Essential Oils. Part XLIII. The Composition of the Volatile Fraction of Italian Sweet Orange Oils (Citrus sinensis(L.) Osbeck)

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