Guest guest Posted July 11, 2004 Report Share Posted July 11, 2004 In a message dated 7/11/2004 8:45:29 AM Eastern Daylight Time, cindyjones1@... writes: The whole hydrosol thing is quite confusing to me, but the way I understand it is that a hydrosol is water supersaturated with essential oil. If so, then it does contain the same terpenes from the essential oil except much diluted. I've only seen this one chemical analysis of a hydrosol and it indeed does contain terpenes - the most concentrated being limonene: http://www.essentiallyoils.com/Features/Floral/floral.htm This analysis however is for rose water rather than sweet orange so it might be different. Have you seen other chemical analysis of hydrosols anywhere? Hi , I'm with you on the hydrosols as far as confusing But I don't believe I would define a hydrosol as being supersaturated with essential oil. In fact, they typically contain very little essential oil. But much depends on the particular method of distillation--hydrodistillation, steam distillation, etc. Plus the time of year, day and plant material of course---some by nature, like rose and melissa just don't want to give up much essential oil. Others, like peppermint will give up lots by comparison. Most distillers have the goal of obtaining essential oils and therefore separate out as much eo as possible--leaving little behind--of course only an analysis would tell for sure. I've done it both ways. For my rose and melissa, since they give so little eo anyway, I just distill for hydrosol, so there IS essential oil in the hydrosol---but again, analysis would tell for sure how much. Yes, there needs to be more work/research on hydrosols. I'm thinking that you, like me, look at botanicals from an herbalist's perspective, rather than from the aromatherapy perspective. I know that terpenes won't be in an infusion made with water since they are either volatile or lipophilic, but since hydrosol is from a distillation process and does contain some volatiles, I can see how it could contain terpenes. But which terpenes? Isn't it the monoterpenoids that are mostly in essential oils? So, therefore it seems that it would be minute amounts of monoterpenoids...but I don't really know. The little bit I've read on obtaining terpenes from citrus (mostly for the cleaning industry) states that they are not water soluble?? There's some good information out there on essential oils and a great deal on herbalism, but not anything much on hydrosol---the field is ripe Angie The Herbarie http://www.theherbarie.com/ Quote Link to comment Share on other sites More sharing options...
Guest guest Posted July 11, 2004 Report Share Posted July 11, 2004 In a message dated 7/11/2004 8:45:29 AM Eastern Daylight Time, cindyjones1@... writes: The whole hydrosol thing is quite confusing to me, but the way I understand it is that a hydrosol is water supersaturated with essential oil. If so, then it does contain the same terpenes from the essential oil except much diluted. I've only seen this one chemical analysis of a hydrosol and it indeed does contain terpenes - the most concentrated being limonene: http://www.essentiallyoils.com/Features/Floral/floral.htm This analysis however is for rose water rather than sweet orange so it might be different. Have you seen other chemical analysis of hydrosols anywhere? Hi , I'm with you on the hydrosols as far as confusing But I don't believe I would define a hydrosol as being supersaturated with essential oil. In fact, they typically contain very little essential oil. But much depends on the particular method of distillation--hydrodistillation, steam distillation, etc. Plus the time of year, day and plant material of course---some by nature, like rose and melissa just don't want to give up much essential oil. Others, like peppermint will give up lots by comparison. Most distillers have the goal of obtaining essential oils and therefore separate out as much eo as possible--leaving little behind--of course only an analysis would tell for sure. I've done it both ways. For my rose and melissa, since they give so little eo anyway, I just distill for hydrosol, so there IS essential oil in the hydrosol---but again, analysis would tell for sure how much. Yes, there needs to be more work/research on hydrosols. I'm thinking that you, like me, look at botanicals from an herbalist's perspective, rather than from the aromatherapy perspective. I know that terpenes won't be in an infusion made with water since they are either volatile or lipophilic, but since hydrosol is from a distillation process and does contain some volatiles, I can see how it could contain terpenes. But which terpenes? Isn't it the monoterpenoids that are mostly in essential oils? So, therefore it seems that it would be minute amounts of monoterpenoids...but I don't really know. The little bit I've read on obtaining terpenes from citrus (mostly for the cleaning industry) states that they are not water soluble?? There's some good information out there on essential oils and a great deal on herbalism, but not anything much on hydrosol---the field is ripe Angie The Herbarie http://www.theherbarie.com/ Quote Link to comment Share on other sites More sharing options...
Guest guest Posted July 11, 2004 Report Share Posted July 11, 2004 - wrote: Angie, The whole hydrosol thing is quite confusing to me, but the way I understand it is that a hydrosol is water supersaturated with essential oil. A true hydrosol is the water by-product of steam distillation for of plant material for EOs. When the steam goes through the cooling oils and into the tank, the hydrosol and the EO separate out (because of course water and oil don't mix) and you are left with two separate substances. The hydrosol for the most part used to be dumped out as a waste product, but now we know better! :-D So, this would contain only 'trace' amounts of the EO, along with (mostly) the hydrophillic portions of the plant material. There are a lot of vendors who merely mix some EO with water and add a solubizer (sp?) and call it a hydrosol, but it is NOT a hydrosol. There is also someone fairly well-known in the AT world who has written a book about the use of hydrosols. Only thing is, she includes hydrosols from plants that are not steam-distilled to produce an EO, but the EO is extracted by some other method, and therefore no hydrosol of the plant exists. Turns out, as she told a couple of us visiting her booth at a conference, that what she calls a hydrosol is the result of passing steam over an EO. Very much NOT the same thing. So it totally negates all the info in her book. Such a shame, as it would be valuable to have a reliable, informative book on the subject. > If so, then it does contain the same terpenes from the > essential oil except much diluted. Terpenes are not the culprits in photosensitization, fuorocoumarins are. SO I don't know what all the fuss about terpenes has been in this discussion. > > This analysis however is for rose water rather than sweet orange so it > might be different. They would most definitely be different, as they are two completely different plants. HTH- Lynda -- Lynda Sorenson http://Luna-Aromatics.com The home of " Arizona Balm " The natural solution to dry problem skin Hand Made Goats Milk Soaps and Soy Wax Candles Quote Link to comment Share on other sites More sharing options...
Guest guest Posted July 11, 2004 Report Share Posted July 11, 2004 This is what I get for writing first thing in the morning before I am awake! Typos and mass confusion! So I meant to say that the steam passes through cooling COILS, not cooling oils. Duh! And the two substances that you are left with after the steam cools are of course the EO and the hydrosol. Depending on the weight/density of the particular EO, the EO can either be on top or on the bottom of the hydrosol, but they do separate out into two pretty distinct layers. Butch can say a whole lot more about this process than I can, since he has been right there millions of times. And his rose hydro is to die for! Lynda Lynda Sorenson wrote: > - > > wrote: > Angie, > The whole hydrosol thing is quite confusing to me, but the way I > understand it is that a hydrosol is water supersaturated with > essential oil. > > A true hydrosol is the water by-product of steam distillation for of > plant material for EOs. When the steam goes through the cooling oils > and into the tank, the hydrosol and the EO separate out (because of > course water and oil don't mix) and you are left with two separate > substances. The hydrosol for the most part used to be dumped out as a > waste product, but now we know better! :-D So, this would contain only > 'trace' amounts of the EO, along with (mostly) the hydrophillic > portions of the plant material. -- Lynda Sorenson http://Luna-Aromatics.com The home of " Arizona Balm " The natural solution to dry problem skin Hand Made Goats Milk Soaps and Soy Wax Candles Quote Link to comment Share on other sites More sharing options...
Guest guest Posted July 11, 2004 Report Share Posted July 11, 2004 This is what I get for writing first thing in the morning before I am awake! Typos and mass confusion! So I meant to say that the steam passes through cooling COILS, not cooling oils. Duh! And the two substances that you are left with after the steam cools are of course the EO and the hydrosol. Depending on the weight/density of the particular EO, the EO can either be on top or on the bottom of the hydrosol, but they do separate out into two pretty distinct layers. Butch can say a whole lot more about this process than I can, since he has been right there millions of times. And his rose hydro is to die for! Lynda Lynda Sorenson wrote: > - > > wrote: > Angie, > The whole hydrosol thing is quite confusing to me, but the way I > understand it is that a hydrosol is water supersaturated with > essential oil. > > A true hydrosol is the water by-product of steam distillation for of > plant material for EOs. When the steam goes through the cooling oils > and into the tank, the hydrosol and the EO separate out (because of > course water and oil don't mix) and you are left with two separate > substances. The hydrosol for the most part used to be dumped out as a > waste product, but now we know better! :-D So, this would contain only > 'trace' amounts of the EO, along with (mostly) the hydrophillic > portions of the plant material. -- Lynda Sorenson http://Luna-Aromatics.com The home of " Arizona Balm " The natural solution to dry problem skin Hand Made Goats Milk Soaps and Soy Wax Candles Quote Link to comment Share on other sites More sharing options...
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