ISSN: 2167-0412
Medicinal & Aromatic Plants
Make the best use of Scientific Research and information from our 700+ peer reviewed, Open Access Journals that operates with the help of 50,000+ Editorial Board Members and esteemed reviewers and 1000+ Scientific associations in Medical, Clinical, Pharmaceutical, Engineering, Technology and Management Fields.
Meet Inspiring Speakers and Experts at our 3000+ Global Conferenceseries Events with over 600+ Conferences, 1200+ Symposiums and 1200+ Workshops on
Medical, Pharma, Engineering, Science, Technology and Business

Distillate Water: Overlooked Golden Drops

Ram Swaroop Verma*
Department of Aromatic plant chemistry, CSIR-Central Institute of Medicinal and Aromatic Plants, Research Centre Pantnagar, Uttarakhand, India
Corresponding Author : Dr. Ram Swaroop Verma
Department of Aromatic plant chemistry
CSIR-Central Institute of Medicinal and Aromatic Plants
Research Centre Pantnagar
P.O.-Nagla Dairy farm, Udham Singh Nagar
Uttarakhand-263149, India
Tel: +91-5944-234445
Fax: +91-5944-234712
Received January 16, 2012; Accepted January 16, 2012; Published January 19, 2012
Citation: Verma RS (2012) Distillate Water: Overlooked Golden Drops. Medicinal Aromatic Plants 1:e112. doi:10.4172/2167-0412.1000e112
Copyright: © 2012 Verma RS. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Visit for more related articles at Medicinal & Aromatic Plants

Aromatic plants possess odorous volatile compounds, which occur in specialized structures in the form of essential oil in one or more parts of the plant. Aromatic plants occur in nearly all vegetationcovered regions of the world. A large number of plant species belongs to family Lamiaceae, Asteraceae, Apiaceae, Zingiberaceae, Rutaceae etc. are characterised by the presence of essential oils. The essential oils are usually complex mixture of terpenes (mainly mono-, C10 and sesquiterpenes, C15) and their oxygenated derivatives. The essential oils are practically insoluble in water, generally lighter than water, and possess characteristic odour. Essential oils find extensive application in flavour, perfumery, cosmetic, and pharmaceutical industries. Therapeutically these are used as antiseptic, stimulant, carminative, diuretic, antihelmintic, analgesics, anti-rheumatic, and counter irritant. Aromatic plants which are being cultivated in different parts of the world for commercial production of essential oils are Orange, lemon, lime, mints (Mentha arvensis, M. x piperita, M. x spicata), cedar, citronella, lemongrass, basil, Eucalyptus, geranium, lavender Litsea cubeba, clove, sassafras (Ocotea pretiosa and Cinnnamomum micranthum), Osmanthus fragrans, patchouli, rose (Rosa spp), tuberose, jasmine, sandalwood, vetiver, bergamot, coriander, etc.
The natural essential oils are extracted from aromatic plants by steam-distillation, hydro-distillation, hydro-cum-steam distillation, and hydro-diffusion processes. Other methods viz. expression, effleurage, and solvent extraction are also employed to trap the essence from aromatic plants. However, most popular methods for essential oil extraction are hydro-distillation/ hydro-cum-steam distillation, and steam distillation. In this process the aromatic plant material is loaded in to a distillation tank and steam generated either in a boiler or in the distillation tank itself is allowed to pass through the aromatic material to rupture the oil glands. The steam and essential oil vapours come out of the tank is then passed through a condenser to remove the energy and convert vapours in to the liquid. The condensate, mixture of essential oil and water (distillate water) is collected in a receiver. As the essential oil and water have different densities; oil in general float on the surface of water and hence can be easily separated. The essential oil thus obtained is called ‘primary’ or ‘decanted’ or ‘main’ essential oil, which is filtered, and dried over anhydrous sodium sulphate to remove moisture before its storage. However, during the process of distilling aromatic plant materials, hydrophilic components (polar compounds) of the essential oil prefer to pass in and remain in the distillation water and the product is known as ‘distillate water’ or ‘hydrosol’ or ‘hydrolate’. The distillate water is often highly aromatic owing to presence of organoleptically important oxygenated components. Nevertheless, in most of the cases farmers discard this distillate water during the course of distillation process. The dissolved fraction of essential oil, also called ‘secondary oil’ can be recovered by re-distillation or solvent extraction of distillate water [1-4]. The secondary essential oil typically has a different composition and odour than the primary essential oil. To date, studies concerning water soluble fraction of essential oil are restricted to just a few aromatic plants such as basil [5], geranium [2], Eucalyptus [6], rose [7], palmarosa [3], American marigold [8], lavender [9,10], clary sage [11] and mints [12,13].
Studies suggested that, the distillate water is charged with more active principles than the main essential oil; therefore, distillate water should not be discarded and can be used for wide range of therapeutic and cosmetic benefits. Alternatively, distillate water may be redistilled to recover the dissolve oil by introducing cohobation system in distillation unit or may be collected separately and used to distill the other batch of the same herb. Further, it is necessary to extend this type of studies to other aromatic crops also to stop the wastage of high value aroma chemicals during distillation process, which will ensure to harness the potential of these overlooked golden drops.
Select your language of interest to view the total content in your interested language
Post your comment

Share This Article

Relevant Topics

Article Usage

  • Total views: 3767
  • [From(publication date):
    March-2012 - Oct 23, 2016]
  • Breakdown by view type
  • HTML page views : 29
  • PDF downloads :3738

Post your comment

captcha   Reload  Can't read the image? click here to refresh

OMICS International Journals
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
OMICS International Conferences 2016-17
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

Agri, Food, Aqua and Veterinary Science Journals

Dr. Krish

1-702-714-7001 Extn: 9040

Clinical and Biochemistry Journals

Datta A

1-702-714-7001Extn: 9037

Business & Management Journals


1-702-714-7001Extn: 9042

Chemical Engineering and Chemistry Journals

Gabriel Shaw

1-702-714-7001 Extn: 9040

Earth & Environmental Sciences

Katie Wilson

1-702-714-7001Extn: 9042

Engineering Journals

James Franklin

1-702-714-7001Extn: 9042

General Science and Health care Journals

Andrea Jason

1-702-714-7001Extn: 9043

Genetics and Molecular Biology Journals

Anna Melissa

1-702-714-7001 Extn: 9006

Immunology & Microbiology Journals

David Gorantl

1-702-714-7001Extn: 9014

Informatics Journals

Stephanie Skinner

1-702-714-7001Extn: 9039

Material Sciences Journals

Rachle Green

1-702-714-7001Extn: 9039

Mathematics and Physics Journals

Jim Willison

1-702-714-7001 Extn: 9042

Medical Journals

Nimmi Anna

1-702-714-7001 Extn: 9038

Neuroscience & Psychology Journals

Nathan T

1-702-714-7001Extn: 9041

Pharmaceutical Sciences Journals

John Behannon

1-702-714-7001Extn: 9007

Social & Political Science Journals

Steve Harry

1-702-714-7001 Extn: 9042

© 2008-2016 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version