Re: [oil_from_algae] Basics of Algae
- Guys, I think you confuse cell walls with cell membranes.
On Sun, 01 Jun 2008 14:50:48 +1200, Bobby Yates Emory <liberty1@...>
> I think you are correct that the cell walls are made up of lipids. But I
> think the high oil species we are interested in will have oil inside the
> cell, not part of the cell wall. Much to be learned.
> Since we will be trying to sell the algae cake to farmers and ranchers
> animal feed, it will probably make it more worthwhile to have some oil
> in it.
> The biodiesel brewers in the USA are having trouble getting feedstock
> Your knowledge and experience should be helpful to us.
> On 5/31/08, Phil W> <heypiffen@...> wrote:
>> Hi Bobby,
>> I was thinking about reversing the osmotic pressure also, but I think we
>> will find that this will disrupt the cell wall (and hence the cell
>> only, the osmotic pressure will then be removed by diffusion, and we
>> have intact cell walls that can be seperated from the solution (possibly
>> To seperate the oil, what we need to do is to break the bonds of the
>> bilayer in the cell wall, where I imagine most of the oil by weight is
>> actually held, and to do this I know chemicals that are reacting or
>> as a catalyst will be more effective. I imagine that heat would have the
>> same effect, but the energy involved may not make it viable. Heat or pH
>> turn a reagent into a catalyst under certain conditions, so this also
>> to be explored. Chances are that such a method has been discovered as
>> result of an accident, but I would not know where to begin researching
>> across the various different accedemic fields.
>> Enzymes would also be another eco-friendly method, but then the cost of
>> production may be prohibitive. Firstly, specific enzymes that have the
>> ability to produce the desired result of breaking the lipid bilayer
>> must be
>> identified. Isolating and production of the enzymes to be used may
>> easier with further research. Does anyone have any candidate enzymes?
>> Currently I work in the waste oils industry in Australia, I know the
>> of biodiesel feedstocks, and am keen to keep my finger on the pulse of
>> oil development (I have a science background with local contacts). A low
>> cost and simplistic system would definately exist, we just have to
>> the alternatives available!
>> PS. I have said previously that I follow the developments on the ASX
>> (Australian Stock Exchange) closely, and there are a few interesting
>> in the pipeline...
>> 2008/5/31 Bobby Yates Emory <liberty1@...>:
>>> Welcome to the group.
>>> There are many chemicals that can be used to extract oil. The standard
>>> answer is hexane. Many other solvents can be used. Butanol is worth
>>> looking at. I am hoping that we can reverse the osmotic pressure, so
>>> answer may be salt or lack of salt.
>>> We are not involved with ethanol. It is brewed with a yeast. The
>>> are used to break down cellulosic material and then use a yeast to
>>> the resulting sugars. They are secrets, I think.
>>> I hope you will grow algae for oil.
>>> On 5/30/08, mddpastor <mddpastor@...> wrote:
>>>> I was wondering if I could get some basic information as to what
>>>> chemicals are utilized to extract the oils from algae. Also what
>>>> is used in the production of Ethanol. I am completely new to this, but
>>>> live in a climate with 330 days a year of sun so it makes sense to me.
>>> Toward freedom,
>>> Bobby Yates Emory
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