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Progress In Essential Oils

Petitgrain or Citrus Leaf Oils In 1993, the composition of the range of petitgrain or the leaf oils of commercially important Citrus species were reviewed (Lawrence 1993). This current review will address the recent published literature and those studies that were not included last time. Each Citrus species will be treated separately.

High Resolution Gas Chromatography for Detection of Adulterations of Citrus Cold-Pressed Essential Oils

Italy is one of the leading countries in the production of citrus oils. The olfactory characteristics of Italian cold-pressed oils are extremely good and, even if sometimes the products are more expensive than those produced in other countries, there is a demand for these oils because of their quality.

PF1711_lawrence_425

Progress in Essential Oils: Thymol-rich Thymus vulgaris oils – Part 1

A derivative of thyme oil, thymol contains antibacterial, anti-inflammatory and antioxidant properties, among others. Part 1 discusses the various constituents of thymol-rich thyme oils.

marjoram

Progress in Essential Oils: Spanish Marjoram Oil

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

Progress in Essential Oils: Carrot Seed Oil

The oil of carrot and carrot seed has been the subject of a number of studies. This article reviews the results of several, including: hydrocarbons characterized in the leaf headspace; the chiral analysis of five constituents found in the headspace; GC/MS findings in a commercial sample of carrot seed oil; GC-FID and GC/MS analyses of oils from ‘Perfkcja,’ ‘Koral’ and ‘Dolanka’ cultivars; and others.

Java Vetiver Oil

Sustainable valorization for the perfumer market

Tunisian Rosemary Oil

The distillation of essential oils is a centuries-old tradition in Tunisia. The field production of rosemary oil, as practiced today, was introduced to Tunisia by the French in the nineteen thirties.

Progress in Essential Oils

Lawrence discusses the composition of clary sage oil from Italy, Serbia, Uruguay, Slovak Republic and India. Lithuania, Additionally, he covers the composition of lavender oil from India, Greece, Russia, Italy and France; and the composition of ginger oil from Mauritius, India, Australia, Hong Kong, Vietnam, Jamaica, Brazil and China.

Progress in Essential Oils

Lawrence discusses the composition of thyme oil (Thymus vulgaris L.) from Italy, Lithuania, Renunion, Brazil, Germany, Jordan and Cuba. Additionally, he covers the composition of Spanish thyme oil (Thymus zygis L.).

Progress in Essential Oils

Lawrence discusses the composition of styrax oil from Turkey, Honduras and Australia. He also discusses the composition of galbanum oil from Iran, and clove oils and extracts from India, Egypt and Madagascar.

Progress in Essential Oils

In every issue, essential oil expert Brian Lawrence examines and reviews the studies published by authors on a wide variety of essential oils. He explores the studies' results and notes when something is incorrect or needs further study. In this issue, Lawrence covers: calendula oil (Calendula officinalis L.).

Progress in Essential Oils

In every issue, essential oil expert Brian Lawrence examines and reviews the studies published by authors on a wide variety of essential oils. He explores the studies' results and notes when something is incorrect or needs further study. In this issue, Lawrence covers: genet oil (Spartium junceum L.) from Italy; sambac oil (Jasminum sambac L. Aiton) and extracts from China and India; lemon myrtle oil (Backhousia citriodora F.Muell.) from Australia; and tangerine oil (Citrus reticulata Blanco and Citrus tangerina) from Florida, China, Kenya, Vietnam and Mexico.

Progress in Essential Oils

Lawrence discusses the composition of carrot oil (Daucus carota L. ssp. carota and Daucus carota L. ssp. sativus from Poland, Lithuania, France and India.

Progress In Essential Oils

Ocimum gratissimum oil. A sample of O. gratissimum obtained from Zhanjiang (Guangdong, China) was analyzed by Zhu et al. (1993) using GC/MS. Its composition was determined to be as follows:

Progress In Essential Oils

Pinus sylvestris oil
Juvonen (1969) compared the composition of the oils obtained from the needles harvested from three separate Pinus sylvestris trees in Finland. The results of his analyses are shown in T-1.

Progress In Essential Oils

Thyme Oil Using a combination of TLC and IR as his method of analysis, Popesco (1983) found that a thyme oil (ex. Thymus vulgaris) of Romanian origin tentatively contained the following constituents:

Progress in Essential Oils

Lawrence discusses the composition of Tea tree oil from Australia and its chiral constituents. Additionally, he covers angelica root oil from Romania and Canada. Finally, Lawrence covers pimento berry and leaf oil from Mexico and Cuba.

Progress in Essential Oils

Lawrence discusses the composition of Lemon oil from West Africa, Egypt, Japan, Italy, Greece, Venezuela, India and its chirality. Lawrence also discusses jamrosa oil from India.

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