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Q: Any Seaweed with more than 5.5% Oil? ( No Answer,   0 Comments )
Subject: Any Seaweed with more than 5.5% Oil?
Category: Science > Biology
Asked by: vincecate-ga
List Price: $100.00
Posted: 17 Mar 2006 15:26 PST
Expires: 16 Apr 2006 16:26 PDT
Question ID: 708574
It seems that a seaweed called "rockweed" or "Ascophyllum nodosum" is
about 5.5% oil.  I hope that there are other types of seaweed with even
higher oil content.  If anyone can find one I will pay them $50. 

It would even be OK if it had the same common name of "rockweed", as
long as it has a different scientific name.  The percentage oil is
calculated by weight for dry seaweed.  If you find more than 1, I will
tip $10 for each extra one you list for up to 10 extras.   You must
include URL(s) to reasonable source(s) that show the oil content. 
When the source gives the percentage it is fine if they say "fat",
"lipids", or "oil".  It is also fine if they say grams out of 100
grams or something that is easily made into a percentage.

Seaweed is also called "macro-algae".  It is big stuff (many cells)
that I can easily see and might pick up with a rake.  I am not
interested in "micro-algae" where I need a microscope to see it. 
Also, seaweed means grows in salt water.

For more on this see

Clarification of Question by vincecate-ga on 18 Mar 2006 16:40 PST
I just changed the list price from $50 to $100.

Request for Question Clarification by pafalafa-ga on 18 Mar 2006 18:40 PST

I found reference to a seaweed that routinely shows a mean lipid
content (dry weight) of around 4%, but numerous sample ranged much
higher, with one showing a maximum of 7.77% lipid content.

Might this serve as an answer to your question?  Or did you need to
find a seaweed that routinely shows a greater than 5.5% lipid content?

Let me know,


Clarification of Question by vincecate-ga on 18 Mar 2006 19:58 PST
Hum.  I was meaning average for the species.  But a large standard
deviation and the current high end are both helpful when you want to
breed for some trait.

If the source shows more than 100 samples were taken and the top 10%
of the samples averages over 6.5% lipid content, I will accept it.

If it does not fit this exactly, tell me how many samples they did and
what the top 5%, 10%, 25% come to and I may still accept it.

Request for Question Clarification by pafalafa-ga on 19 Mar 2006 05:14 PST
Take a look: 

at the file labelled [ lipids-macroalgae ]

and let me know what you think.


Clarification of Question by vincecate-ga on 19 Mar 2006 12:42 PST
If I take the max from each sample and average those it is still less than 6.5%.
So no, that is not good enough.
There is no answer at this time.

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