quote:Originally posted by ebarillas Hello everyone, I' am working on how to detoxificate de jatropha curcas oil press seed cake, as we know we have to eliminate de curcin, my opinion is that the high crude protein level would be more interesting using for animal feed than bio fertilizar. Has anybody experience in this process.
quote:Originally posted by peter-linking Try thinking it as a fuel - Not as animal feed or fertilizer – Check out the calorie content 5,000 +. More value. Peter quote:Originally posted by ebarillas Hello everyone, I' am working on how to detoxificate de jatropha curcas oil press seed cake, as we know we have to eliminate de curcin, my opinion is that the high crude protein level would be more interesting using for animal feed than bio fertilizar. Has anybody experience in this process.
I'm working with Jatropha curcas for biofuel with a group in Costa Rica. We are trying to look upon the press cake as the principal product in an effort to conteract the expense of hand harvesting the fruit. The use of the press cake as a fuel or fertilizer seems to be very wasteful. It represents a reservoir of energy and fixed nitrogen in the form of proteins. It would far more profitable to use it as animal feed then put the manure in biodigesters to get energy. The problem is the double toxin systems, curcin and the phorbol esters.
The non-toxic variety is very hard to get seeds of other than going to Mexico and finding them. This variety originated near Veracruz and is mostly planted in Quintana Roo Provence. There the seeds are roasted and sold as food for people.
I don't think that there is a completely non-toxic variety. I think that there is a variety that has very low levels of one of the two toxins and that the other toxin is destroyed by heating, but I can't find out which is which.
My work must be limited to the standard plants. Curcin is a protein and as such is subject to being destroyed in various ways. The press cake can probably be made non-toxic by being used as a fermentation feed stock to produce ethanol. But then its value as animal feed is greatly reduced. I would also like to use it to make silage since that too is a fermentation process but that preserves much of the original protein content. The question is if the silage process would eliminate toxicity.
Oh yes, the use of press cake for animal feed necessitates the dehulling of the seed before pressing for the oil. This also increases the oil yield per expresser load and reduces wear and tear on the equipment.
Hallo Hannah,
lucky to find you! I´m looking to find J.C.growers in Filipinas, cause a friend of mine who is a great expert in engine conversion to svo has moved there and is interested to make a contact and perhaps work together.
If you are interested, drop me a line.
Saludos
Rolf
Hallo Peter,
not everybody agrees with you.
Followiing K.Becker from Hohenheim University, detoxified seed will add between 325 and 375 $/ha of value to the cultivation- they are working at high speed on the techniques of detoxication in their labs.
www.jatropha.de/links.htm - 25k -
thank you, rolf. i just sent you an e-mail.
may i know if you or anyone knows of a website which has photos and details of different varieties of jathropa ?
thanks again
Hannah
Good morning (my side) Hannah,
I never got this mail.
If anyone can help you with varieties it´s Reinhard Henning of bagani www.jatropha system. de
There are many crosslinks on that site.
If you don´t find any help there, I could try it with a pereson in Argentina, but he is also very busy.
Luck!
hola rolf,
i wonder where that email got to - i sent it thru the "contact by email " option. . will give it another try.
anyway , i wrote to ask about possible working/business arrangements your friend might have in mind. i also mentioned that i have several friends who have also just started on jathropa curcas farming.
yesterday, a biodiesel law has been signed here in the philippines requiring motor vehicles to use biodiesel so interest in jathropa propagation has become even higher here
thank you so much for the website tip/help
hannah
Hola Hannah,
se sigue hablando algo de español en las Filipinas ?
I talked to my friend , but he is too busy at present and couldn´t handle any more.
I´m shure he can help you with converting engines to SVO. Look, I do not at all believe in biodiesel for some regions and reasons.
After all I´ve seen, it´s much easier and less costly to use svo with the right filtering/refinement proceedure.
More so in warm countries.
But I could see whether a joint busynes between us could work out. We need vegoil and we are buying it from wholesellers who control the market. We would much more prefer to buy it directly from loyal producers and share the profit.We offer substancial help to people/cooperatives/organizations that are able to produce a certain output of oil.Try this mail : energiesnaturals@gmx.de
and tell me more about your plans.
hasta luego