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Progress in Essential Oils: Bitter Fennel Oil and Extract

In this edition, Brian Lawrence discusses the composition of bitter fennel oil and extract.

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Progress in Essential Oils: Sweet Fennel Oil and Extract

In this column, Brian M. Lawrence reviews the composition of sweet fennel oil and extract as found by various researchers. For example, a commercial sample of sweet fennel oil was screened for its anti-platelet activity by Tognolini et al. (2006) and Guerini et al. (2006) using GC-FID and GC/MS. Results are reported herein.

GLC fingerprint chromatograms of five authentic essential oils were obtained in a collaborative study.

Gas-Liquid Chromatography Analysis of Fennel and Wormwood Oils

Part 1 of 2: Fingerprint GLC of three of five ketone-containing essential oils.

Natural Oil of Bitter Almond

Oil of bitter almond, amygdalia amarae, is the volatile oil derived by steam distillation of the dried, ripe kernels of bitter almonds (Prunus amygdalus), peaches (Prunus persica), apricots (Prunus armenica) or other kernels containing amygdalin, e.g., cherries (Cerasus species) and plums (Prunus domestica).

Almond trees in M’Gouna, Morocco; all photos courtesy of Elise Leclerc, Julie Paumier and Claire Delbecque of Bontoux SAS.

Genetic Traceability of the Bitter Almond Essential Oil Supply Chain

Examining barcoding and metabarcoding analyses to authenticate and trace raw materials.

Analysis of volatiles in flavor-scored vegetable oils and detection of flower petal essences by unconventional instrumental means

This paper describes the direct, unconventional GC procedure as applied to flavor-scored soybean oils and its potential utility for detecting volatile essences in flower petals.

Differences in Chemical and Sensory Properties of Orange Flower and Rose Oils Obtained from Hydrodistillation and from Supercritical C02 Extraction

In this article we will identify some characteristic and essential constituents of bitter orange flowers (Citrus aurantium L., ssp. armzra Engl.) from Spain, Tunisia and Morocco, and roses (Rosa damascena Mill.) from Bulgaria and Turkey, and we will discuss how the consitutents differ depending on whether the oils were isolated by hydrodistillation or by supercritical fluid carbon dioxide extraction of the concretes. hydrodistillatio norbysupercriticai fluid carbon dioxide extraction of the concretes.

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Progress in Essential Oils: Cubeb Oil

This month's column discusses the chemical composition of cubeb oil derived from Piper cubeba L.

Progress in Essential Oils: Spanish Marjoram Oil, Lesser Galangal Oil and Wormwood Oil

This edition discusses the chemical composition of Spanish marjoram oil, lesser galangal oil and wormwood oil.

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Progress in Essential Oils: Grapefruit Oil

This month's issues discusses the chemical composition of grapefruit oil.

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Progress in Essential Oils: Tagetes Oil

This month's column discusses the chemical components of tagetes oil.

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Progress in Essential Oils: Spanish Sage Oil

Sage has been used as a spice and medicine throughout history with its use, growing in a variety of flavor and fragrance applications. This month, we take a closer look at the chemical constituents of pure and hybrid Spanish sage oils.

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Progress in Essential Oils: Long Pepper Oil

The present article is a survey of literature evaluating the constituents of Piper longum L., or long pepper, fruit oil. In one case, early researchers found the oil was devoid of monoterpene compounds and rich in sesquiterpenes, with b-caryophyllene being the major hydrocarbon. Lawrence (1978) and others also examined the composition of P. longum, the findings from which are discussed here.

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Progress in Essential Oils: Juniper Berry Oil

This month's column discusses the chemical composition of juniper berry oil. Some of its common uses include seasoning mixtures in the food industry as flavorings in marinades for meat and fish, as well as in beverages such as tea, beer and brandy

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Progress in Essential Oils: Spanish Oregano Oil

This month's column discusses the chemical composition of Spanish oregano oil.

Progress in Essential Oils: Summer Savory Oil

Summer savory oil.

Progress in Essential Oils: Citron Oil, Pimento Leaf and Berry Oil

This month, Brian Lawrence discusses the composition of citron oil, pimento leaf and berry oil.

Progress in Essential Oils: Asafoetida Oil

This month's column discusses the chemical composition of asafoetida oil and extract.

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