[Sis290025]

Does anyone know of any good websites or books that discuss various methods of isolating the essential oil from rosemary and using IR spectroscopy to analyze the results from the isolation techniques?

Thank you.

[Yggdrasil]

http://www.wikihow.com/Make-Essential-Oils

[Sis290025]

I did steam distillation on a mass of rosemary and managed to do an IR analysis on it.

On the IR graph, major peaks appeared at 3444, 1602, 1742, and 2925-2881 cm-1.

From classifying the numbers to functional groups, it was surmised that a mixture of borneol (C=C and C=O) and verbenone (-OH group) was isolated.

In isolation of different components by distillation, exactly what factors can affect this method so that an inefficient separation of the oils results?

Thanks. Any help is appreciated.

[chiralic]

Hi:

If you have access to Wiley journal at your University, see this link:

A comparison between different techniques for the isolation of rosemary essential oil
Journal of Separation Science 2005, vol. 28, no3, pp. 273-280
http://www3.interscience.wiley.com/cgi-bin/abstract/109925320/ABSTRACT

Abstract
Traditional hydrodistillation (HD), supercritical fluid extraction (SFE), organic solvent extraction (SE), and water microwave assisted hydrodistillation (MAHD) techniques were compared and evaluated for their effectiveness in the isolation of rosemary essential oil. The microwave assisted hydrodistillation technique was optimized in terms of both delivered power and time duration. The extracts/distillates were analyzed by GC and GC-MS. Microwave distillation, which exploits the physical action of microwaves on plants, showed a series of advantages over the other approaches: low cost, use of water in sample pre-treatment step, greatly reduced isolation time, and attainment of high quality essential oil distillate. Moreover, the absence of environmental impact of this innovative technique was also emphasized.

Regards,

Chiralic

[chiralic]

Here another references about the same topic:

The essential oils of some rosemary cultivars
Flavour and Fragrance Journal  (1986) Volume 1, Issue 4-5  , Pages 137 - 142
http://www3.interscience.wiley.com/cgi-bin/abstract/112599928/ABSTRACT

or

"Near Infrared spectroscopic quality control of rosemary essential oil"
Wilson, N.D., Watt, R.A. and Moffat, A.C.,
Journal of Pharmacy and Pharmacology (2000),52 (Supplement) 241
http://www.ingentaconnect.com/content/rpsgb/jpp

"The rapid identification of pure essential oils by Near Infrared spectroscopy"
Wilson, N.D., Watt, R.A. and Moffat, A.C.,
Journal of Pharmacy and Pharmacology (1999), 51 (Supplement) 233
http://www.ingentaconnect.com/content/rpsgb/jpp


Regards,

Chiralic

[abdul56]

Yes, there are several resources available that discuss methods of isolating essential oils from plants like rosemary and utilizing infrared (IR) spectroscopy for analysis. Here are some suggestions:

Books:

"Essential Oil Extraction and Analysis: A Detailed Overview" by Lisa Latimer. This book provides comprehensive information on various extraction methods for essential oils, including steam distillation, solvent extraction, and more. It also covers analytical techniques such as IR spectroscopy for the analysis of essential oils.
"Essential Oils Handbook: All the Oils You Will Ever Need for Health, Vitality, and Well-Being" by Jennie Harding. While not specifically focused on extraction methods, this book offers insights into the properties and uses of various essential oils, including rosemary, which can complement your understanding of their extraction and analysis.
Websites:

The American Oil Chemists' Society (AOCS) website (www.aocs.org) offers a range of resources related to essential oil extraction and analysis, including publications, conferences, and technical resources.
The International Society for Horticultural Science (ISHS) (www.ishs.org) provides access to scientific research papers and conference proceedings related to plant extraction techniques and analytical methods such as IR spectroscopy.
Research Papers:

Search academic databases such as PubMed, Google Scholar, or Scopus for research papers on "rosemary essential oil extraction" or "IR spectroscopy analysis of rosemary essential oil." Many research articles delve into specific extraction methods and analytical techniques for essential oils, including IR spectroscopy.
Online Courses or Tutorials:

Look for online courses or tutorials on analytical techniques in chemistry or aromatherapy. Websites like Coursera, edX, or Udemy might offer relevant courses that cover essential oil extraction and analysis using IR spectroscopy.
Professional Organizations:

Explore professional organizations related to analytical chemistry, aromatherapy, or essential oil industries. These organizations often provide educational resources, conferences, and networking opportunities where you can learn more about essential oil extraction and analysis techniques.
By exploring these resources, you should be able to find valuable information on isolating rosemary essential oil and using IR spectroscopy for its analysis.

[rolnor]

 I gave chiralic a molesnack, nice help

[Borek]

I gave chiralic a molesnack, nice help

Yes, nice answer to an 18 years old post , dug out by a newcomer necroposter, probably using ChatGPT to generate reasonably looking answer

[wildfyr]

LMFAO this was taken from deep in the mines by this bot.

How does anyone make money programming bots to troll forums these days. Reddit or twitter I get, but what money is there to be had here?

[Borek]

LMFAO this was taken from deep in the mines by this bot.

How does anyone make money programming bots to troll forums these days. Reddit or twitter chemicalforums I get, but what money is there to be had here?

Attempts at link spamming - they post, they wait, they edit profile to add link either to the profile or to the signature.

Or they hide link in the text with formatting. chemicalforums

Or they quote your post and add a link somewhere inside the quote.

Both latter techniques present in this post - have you spotted them before I told you?