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thyme

Progress in Essential Oils:Thymol-rich Thymus vulgaris oils – Part 2

We take a closer look at the various constituents of thymol-rich thyme oils hailing from various parts of Iran, as well as Turkey, Czech Republic, Spain and Brazil.

Progress in Essential Oils: Mentha Citrate and Ajowan Oils

This edition discusses the chemical composition of Ajowan oil and Mentha citrata oil.

celery

Progress in Essential Oils: Celery Seed and Leaf Oils

This month's column discusses the chemical compositions of celery seed leaf and oil.

Natural Essential Oils: Extraction Processes and Application to Some Major Oils

This discussion offers a brief overview of the different processes used to obtain natural essential oils. The trend of development in natursl essential oils for the near future will be to: —obtain products free of organic solvents —impove the preparation of the plant matter in order to get better yields —develop aromatic molecules through fermentation

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.

Progress in Essential Oils: Calmus Oil, Triploid Rhizome-Leaf Oils and More

Calamus oil, triploid rhizome-leaf oils, diploid rhizome oils and Nigella sativa oil.

Progress in Essential Oils: Yarrow Oil, Spikenard Oil, and Dwarf Pine and Mountain Pine Oils

This month's column discusses the chemical compositions of yarrow oil, spikenard oil, and dwarf pine and mountain pine oils

Pattern Recognition Methods for Discrimination of Essential Oils (Rose Oils) by Their Gas Chromatograms

It is possible to distinguish between essential oils of the same type and their mixtures by analysing their gas chromatograms using a pattern recognition method.

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.

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