[Digestion] Inoculation

Gasan Osojnik gasan.osojnik at gmail.com
Sun Oct 3 00:11:01 PDT 2010


I was involved in the scale-up process for a brewery, so the numbers are
probably not easily accessable. Our group was constituted of one biochemist,
mech. eng., animal science eng., and a microbiologist, each of us being
quite independent.  So my short comment is based on the discussion we had
based on the experiments outcome (microbiota structure, bmp assay, bench
batch & continuous pilot tests performed ). This is also quite recent, so I
expect that publications are yet in the making. What is your primary
interest regarding yeast?

BR, Gasan

On 2 October 2010 12:15, <digestion-request at lists.bioenergylists.org> wrote:

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>   1. Re: Inoculation (Edward Matos)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Sat, 2 Oct 2010 13:15:35 +0300
> From: Edward Matos <edward.matos at shambatechnologies.com>
> To: "'For Discussion of Anaerobic Digestion'"
>        <digestion at lists.bioenergylists.org>
> Subject: Re: [Digestion] Inoculation
> Message-ID: <SNT112-DS22FB76E59CDA29829DF9E7EA6A0 at phx.gbl>
> Content-Type: text/plain; charset="utf-8"
>
> Gasan,
>
>
>
> Thanks for your insight into your research on how yeast aids biodigestion.
> Is there any peer reviewed literature available on this? I would be
> interested in seeing some numbers.
>
>
>
> Thanks,
>
>
>
> Ed
>
>
>
>
>
> From: digestion-bounces at lists.bioenergylists.org [mailto:
> digestion-bounces at lists.bioenergylists.org] On Behalf Of Gasan Osojnik
> Sent: 02 October 2010 12:52
> To: digestion at lists.bioenergylists.org
> Subject: Re: [Digestion] Inoculation
>
>
>
>  The use of yeast in the production of biomethane is beneficiary, hence
> this is a easily biodegradable substrate. However, the high concentration of
> nitrogen lowers the biomethane production potential, and a carbon-rich
> co-substrate is therefore neccesary to gain optimal biogas yield.
>
> In our research, yeast hydrolyzed with the use of different techniques
> showed lower producztion of biogas than those where viable yeast was used.
> This suggests, that yeasts actively contribute to the production. As the
> yeasts transform fermentable sugars to ethanol, they probably aid the
> methanogenic community with supplying an additional methabolic pathway (that
> is until they are themselves degraded in the process).
>
> Methanogens themselves are not present in the yeast community, so the
> acceleration of the start-up procedure must be due to the described effects.
>
> Regarding the question of existent inoculates, the start-up is much more
> efficient, if the inoculate is fresh - do you have any option of
> transporting fresh biomass from other operating digestors to your site? The
> local methanogenic communities are already adapted to the "environment" and
> by taking the inoculant from appropriate digesters, you can choose form
> digesters with similar substrates... Here in Slovenia one of the big biogas
> farms has made their start-up with the aid of liophilized inoculant they
> acquired from US, yet I am anaware of their succesfullness. I mean. the
> biogas plant operates sucessfully, but I am unsure, if the inoculant
> accelerated the process. If you like, I can ask them for some feedback.
>
> Baker/brewers yeast are tippically of the same species, Saccharomyces
> cerevisiae, the strains can be different.
>
> BR, Gasan
>
>
>
>
>
> Ilja Gasan OSOJNIK ?RNIVEC
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>
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> Today's Topics:
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>  1. Re: Costs of different household biodigesters (David)
>  2. subscribe (Ted Mathews)
>  3. Re: Costs of different household biodigesters (Alexander Eaton)
>  4. Re: Inoculation (Alexander Eaton)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Tue, 28 Sep 2010 23:08:18 -0700
> From: David <david at h4c.org>
> To: Alexander Eaton <alex at sistemabiobolsa.com>
> Cc: For Discussion of Anaerobic Digestion
>       <digestion at lists.bioenergylists.org>
> Subject: Re: [Digestion] Costs of different household biodigesters
> Message-ID: <4CA2D7D2.5070505 at h4c.org>
> Content-Type: text/plain; charset="iso-8859-1"; Format="flowed"
>
>
> Alex,
>
> On 9/28/2010 8:55 PM, Alexander Eaton wrote:
> > Hi david,
> >
> > For whom is the .75 m3 designed?  What feedstock or waste stream makes
> > sense at such a small size?  I understand that even the arti folks
> > found a functional floor at about twice that size.
>
> It's a pico- or femto-sized digester (or more accurately digester
> kit), to be sure. My purpose in making it is to illustrate some
> manufacturing/construction techniques for the workshops, and in a
> larger context, to make progress on very, very low cost designs. I'll
> probably be posting more about this as things advance, but as yet they
> are in a very early state, as my message implied.
>
> I would imagine that most folks would be feeding it kitchen wastes and
> similar, and the possibility exists that it could provide much or even
> all one's cooking fuel, in the proper circumstances. (That is, if we
> assume that a digester using this kit, kept at body temp, can produce
> 1 vol biogas per vol digester per day, then we come into the range
> often quoted for cooking fuel needs for a small family: 0.75 cu m/day.)
>
> I call it a kit because it needs to be provided with a shelter, etc.,
> or to put it another way, it is not a complete digester /system/. Thus
> I would also highlight the point you made, that the price I quote does
> not include gas collection, nor a stove, etc. and in that regard would
> not be directly comparable to some other prices quoted in response to
> the Ivo's question.
>
>
> d.
> --
> David William House
> "The Complete Biogas Handbook" |www.completebiogas.com <
> http://www.completebiogas.com/> |
> /Vahid Biogas/, an alternative energy consultancy |www.vahidbiogas.com <
> http://www.vahidbiogas.com/>
>
> |
> "Make no search for water.       But find thirst,
> And water from the very ground will burst."
> (Rumi, a Persian mystic poet, quoted in /Delight of Hearts/, p. 77)
>
> http://bahai.us/
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> Message: 2
> Date: Wed, 29 Sep 2010 07:14:13 -0500
> From: "Ted Mathews" <Ted.Mathews at GreenEnergiesUSA.com>
> To: <Digestion at lists.bioenergylists.org>
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> ------------------------------
>
> Message: 3
> Date: Wed, 29 Sep 2010 07:27:51 -0500
> From: Alexander Eaton <alex at sistemabiobolsa.com>
> To: david at h4c.org, For Discussion of Anaerobic Digestion
>       <digestion at lists.bioenergylists.org>
> Subject: Re: [Digestion] Costs of different household biodigesters
> Message-ID:
>       <AANLkTinvZjaey1VM4c-rovxggJEg2mbzUc7nGaX3tkk0 at mail.gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1
>
> IrrI has been offering biogas courses for about 5 years, and I have
> had students build hundred of small digester models, but I can never
> seem to find the balance between an in-class exercise and a system
> that would be take home and functional.  Sure they make gas and
> illustrate the concept, but if it had a longer and more functional use
> (urban) they would be that much better.  Anymore info on the model and
> functional feedstocks at that size we would be really helpful and
> would help the educational efforts.
>
> Cheers
>
> A
>
> On 9/29/10, David <david at h4c.org> wrote:
> >
> > Alex,
> >
> > On 9/28/2010 8:55 PM, Alexander Eaton wrote:
> >> Hi david,
> >>
> >> For whom is the .75 m3 designed?  What feedstock or waste stream makes
> >> sense at such a small size?  I understand that even the arti folks
> >> found a functional floor at about twice that size.
> >
> > It's a pico- or femto-sized digester (or more accurately digester
> > kit), to be sure. My purpose in making it is to illustrate some
> > manufacturing/construction techniques for the workshops, and in a
> > larger context, to make progress on very, very low cost designs. I'll
> > probably be posting more about this as things advance, but as yet they
> > are in a very early state, as my message implied.
> >
> > I would imagine that most folks would be feeding it kitchen wastes and
> > similar, and the possibility exists that it could provide much or even
> > all one's cooking fuel, in the proper circumstances. (That is, if we
> > assume that a digester using this kit, kept at body temp, can produce
> > 1 vol biogas per vol digester per day, then we come into the range
> > often quoted for cooking fuel needs for a small family: 0.75 cu m/day.)
> >
> > I call it a kit because it needs to be provided with a shelter, etc.,
> > or to put it another way, it is not a complete digester /system/. Thus
> > I would also highlight the point you made, that the price I quote does
> > not include gas collection, nor a stove, etc. and in that regard would
> > not be directly comparable to some other prices quoted in response to
> > the Ivo's question.
> >
> >
> > d.
> > --
> > David William House
> > "The Complete Biogas Handbook" |www.completebiogas.com <
> http://www.completebiogas.com/> |
> > /Vahid Biogas/, an alternative energy consultancy |www.vahidbiogas.com <
> http://www.vahidbiogas.com/>
> >
> > |
> > "Make no search for water.       But find thirst,
> > And water from the very ground will burst."
> > (Rumi, a Persian mystic poet, quoted in /Delight of Hearts/, p. 77)
> >
> > http://bahai.us/
> >
>
> --
> Sent from my mobile device
>
> Alexander Eaton
> Presidente
> Sistema Biobolsa
>
> Mex cel: (55) 11522786
> US cel: 970 275 4505
> alex at sistemabiobolsa.com
> alexanderb.eaton at gmail.com
> sistemabiobolsa.com <http://sistemabiobolsa.com/>
> www.irrimexico.org <http://www.irrimexico.org/>
>
>
>
> ------------------------------
>
> Message: 4
> Date: Wed, 29 Sep 2010 07:33:28 -0500
> From: Alexander Eaton <alex at sistemabiobolsa.com>
> To: For Discussion of Anaerobic Digestion
>       <digestion at lists.bioenergylists.org>
> Subject: Re: [Digestion] Inoculation
> Message-ID:
>       <AANLkTind7bEq4Gv7rKf2XM42s_kZqYN4B-BiGnUa733T at mail.gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1
>
> Jaime has suggested baking/brewing yeast (is there a big difference?).
>  There must be a way to keep the bacteria alive in the digester
> effluent, while also reducing the effluent volume and improving the
> portability.  Maybe a combination of the two things?  This seems like
> a useful area of inquiry.  I did, however, assume that someone out
> there already had this nailed down...anyone else!?
>
> Saludos,
>
> A
>
> On 9/29/10, Greg Austin <greg.austin at agama.co.za> wrote:
> > Hi
> >
> > We have a similar problem here with our small digesters, and typically
> > use cow manure as a starter.  We have also looked into the tablets,
> > and yes they are enzymes, and really don't do what's required.  Sorry
> > not to be able to offer a solution, but hope someone else can provide
> > ideas?!
> >
> > Regards
> >
> > --
> >
> > Greg Austin
> > AGAMA Biogas (Pty) Ltd
> > T       +27 21 7013364
> > F       +27 21 7024920
> > E       greg.austin at agama.co.za
> > W     www.agama.co.za <http://www.agama.co.za/>
> > W     www.biogaspro.com <http://www.biogaspro.com/>
> >
> > On 29 Sep 2010, at 4:47 AM, digestion-request at lists.bioenergylists.org
> > wrote:
> >
> >> Send Digestion mailing list submissions to
> >>      digestion at lists.bioenergylists.org
> >>
> >> To subscribe or unsubscribe via the World Wide Web, visit
> >>
> http://lists.bioenergylists.org/mailman/listinfo/digestion_lists.bioenergylists.org
> >>
> >> or, via email, send a message with subject or body 'help' to
> >>      digestion-request at lists.bioenergylists.org
> >>
> >> You can reach the person managing the list at
> >>      digestion-owner at lists.bioenergylists.org
> >>
> >> When replying, please edit your Subject line so it is more specific
> >> than "Re: Contents of Digestion digest..."
> >>
> >>
> >> Today's Topics:
> >>
> >>   1. Re: Inoculation for Small Digesters (Marc de Piolenc)
> >>   2. Re: Costs of different household biodigesters (Eric Buysman)
> >>
> >>
> >> ----------------------------------------------------------------------
> >>
> >> Message: 1
> >> Date: Wed, 29 Sep 2010 10:44:58 +0800
> >> From: Marc de Piolenc <piolenc at archivale.com>
> >> To: For Discussion of Anaerobic Digestion
> >>      <digestion at lists.bioenergylists.org>
> >> Subject: Re: [Digestion] Inoculation for Small Digesters
> >> Message-ID: <4CA2A82A.1060105 at archivale.com>
> >> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
> >>
> >> The tablets are probably enzymes, when what you need are the
> >> microorganisms that produced the enzymes. You may need to produce your
> >> own packaged inoculant, but if you succeed you may have a marketable
> >> product. Research is the first step; find out the techniques used in
> >> microbiological laboratories for culturing and preserving the
> >> organisms
> >> you need, then see if they all have a common preservation medium.
> >>
> >> Best,
> >> Marc de Piolenc
> >> Iligan City, Philippines
> >>
> >> Archivale catalog: http://www.archivale.com/catalog
> >> Polymath weblog: http://www.archivale.com/weblog
> >> Translation services: http://www.proz.com/profile/639380
> >> Ducted fans: http://massflow.archivale.com/
> >>
> >> On 9/29/2010 1:07 AM, Alexander Eaton wrote:
> >>> HI All,
> >>>
> >>> We have been doing our systems start (for small household scale
> >>> digesters) with the paunch waste from slaughterhouses, adding 50-100
> >>> liters of the waste along with manure and water as an initial charge.
> >>> Transporting this waste (wet, heavy, and a bit nasty) is a bit of a
> >>> pain.  My technicians keeping hinting at better incolculant
> >>> solutions,
> >>> and I would like to see if there is anyone out there making really
> >>> effective inoculates (or knows how to make them) that are dry,
> >>> simple to
> >>> apply, but really effective in starting a digester.  Efficient and
> >>> fast
> >>> start-up is a really crucial aspect of technology adoptions, and
> >>> using
> >>> effluent from functioning digesters or the paunch waste has
> >>> produced the
> >>> best results for us as far as start-up rates.  We have seen a brand
> >>> of
> >>> tablets for septic tanks, but we have not found them to improve
> >>> start-up
> >>> times as compared with straight manure.  Thanks in advance.
> >>>
> >>> Saludos,
> >>>
> >>> A
> >>>
> >>> --
> >>> Alexander Eaton
> >>> Sistema Biobolsa
> >>> IRRI-Mexico
> >>>
> >>> Mex cel: (55) 11522786
> >>> US cel: 970 275 4505
> >>>
> >>> alex at sistemabiobolsa.com <mailto:alex at sistemabiobolsa.com>
> >>> alexanderb.eaton at gmail.com <mailto:alexanderb.eaton at gmail.com>
> >>> sistemabiobolsa.com <http://sistemabiobolsa.com/>  <
> http://sistemabiobolsa.com <http://sistemabiobolsa.com/> >
> >>> www.irrimexico.org <http://www.irrimexico.org/>  <
> http://www.irrimexico.org <http://www.irrimexico.org/> >
> >>>
> >>>
> >>>
> >>> _______________________________________________
> >>> Digestion mailing list
> >>> Digestion at lists.bioenergylists.org
> >>>
> http://lists.bioenergylists.org/mailman/listinfo/digestion_lists.bioenergylists.org
> >>
> >>
> >>
> >> ------------------------------
> >>
> >> Message: 2
> >> Date: Tue, 28 Sep 2010 19:47:36 -0700 (PDT)
> >> From: Eric Buysman <ericishier at yahoo.com>
> >> To: For Discussion of Anaerobic Digestion
> >>      <digestion at lists.bioenergylists.org>
> >> Subject: Re: [Digestion] Costs of different household biodigesters
> >> Message-ID: <6976.126.qm at web33805.mail.mud.yahoo.com>
> >> Content-Type: text/plain; charset="iso-8859-1"
> >>
> >> Dear all,
> >>
> >> The investment costs (part paid by the farmer) in Cambodia are as
> >> follows:
> >>
> >> Plant size 4 m3 6 m3 8 m3 10 m3 15 m3
> >> Estimated cost   (USD)* 400 470 550 625 890
> >> Subsidy (USD) 150 150 150 150 150
> >>
> >> The digester model is a modified version of the  Deenbandhu
> >> digester, a fixed
> >> dome digester. The digester have a 2 year warranty and last
> >> typically for 15-20
> >> years.
> >>
> >> On top of that users receive a flat rate subsidy of $150, which
> >> originates from
> >> carbon finance. The program costs are, I believe, now $250 per
> >> biogas plants.
> >> This is a joint SNV- Cambodian government programme.
> >>
> >> In Vietnam the costs are almost 1 million VND per m3, that is around
> >> $50/m3
> >> digester volume, on top of that farmers receive a flat rate $50
> >> subsidy. Their
> >> digester model is based on the Chinese dome digester.
> >>
> >> Cheers,
> >>
> >> Eric
> >>
> >>
> >>
> >>
> >>
> >> ________________________________
> >> From: Alexander Eaton <alex at sistemabiobolsa.com>
> >> To: For Discussion of Anaerobic Digestion
> >> <digestion at lists.bioenergylists.org
> >> >
> >> Sent: Wed, September 29, 2010 7:48:18 AM
> >> Subject: Re: [Digestion] Costs of different household biodigesters
> >>
> >> HI All,
> >>
> >> We have reinforced polyethylene geomembrane digester in a variety of
> >> sizes that
> >> come as a "kit" with all connections, biogas reservoir, geo-textil
> >> ground liner,
> >> gas management systems with high pressure relief valve and filter,
> >> and simpler
> >> burner.  The system can be installed in the ground or above ground,
> >> and the
> >> material has a 20 year guarantee.  We service and guarantee the
> >> systems for two
> >> years, and offer low cost service for the life of the system
> >> (currently only in
> >> Mexico).  There may be additional costs associated with a roof or
> >> greenhouse
> >> structure for the digester.  Note that Jaime has also included the
> >> price of a
> >> greenhouse cover for the Bolivia systems, which many others leave
> >> out.  Our
> >> intention is no use of concrete, but sometimes there is a bit of
> >> work needed to
> >> make the pig-pen or stable drain adequately to the digester.  Retail
> >> prices (all
> >> in) are below, and the sizes refer to m3.  We have made systems of 1
> >> and 2 m3
> >> for test purposes, but these are not much less expensive than that
> >> of 4 meters
> >> as the entrance and exits cost the same and our asembly labor is
> >> nearly the same
> >> as well (therefore larger systems are less expensive per m3).  From
> >> these prices
> >> we offer discounts for good programs, low income families, and for
> >> higher
> >> quantities purchased.
> >>
> >>
> >>
> >> Bolsa Sizes  Costo (MXN) Costo (US$)
> >> 4 $9,292 $743
> >> 8 $12,802 $1,024
> >> 12 $16,312 $1,305
> >> 16 $19,823 $1,586
> >> 20 $20,515 $1,641
> >> 30 $28,813 $2,305
> >>
> >> We also built a lot of regular plastic digesters in the style of Jaime
> >> (Taiwanese or Preston Digester), and the costs in Mexico (same
> >> components,
> >> double layer bag), were only about 10-20% lower.  This is higher
> >> than Jaime has
> >> shown, which could be because of higher material prices in Mexico.
> >>
> >>
> >> For SNV's program in Africa, their prices for the concrete dome
> >> digesters were
> >> nearly identical for those I listed above.  We are quite a bit
> >> cheaper overall
> >> as our system requires only a couple hours (one technician installs
> >> 3 per day)
> >> versus a week of construction.  Also, our materials prices are much
> >> cheaper at
> >> higher volumes.
> >>
> >>
> >> It is important to note that it can be very misleading to state
> >> "costs" for
> >> these types of systems.  These sorts of speculations often seem to
> >> project the
> >> idea that someone is building the system in their backyard, and
> >> therefore it is
> >> appropriate to externalize many of the costs.  When installing the
> >> "appropriate
> >> tech" style bag digester, there are a few days of installation
> >> preparation, plus
> >> acquisition of materials, etc.  Just pulling off the price tag of
> >> the materials
> >> often does not appropriately encapsulate the full cost of the
> >> installation.
> >> This tends to set up false expectations to those who would like to
> >> promote the
> >> technology, or when a government wants to spend to have them
> >> installed.  I
> >> beleive (please comment Jaime) that the Bolivia program has a
> >> subsidy in place
> >> for installation, transport, and labor, which is crucial to
> >> consider.  The
> >> families are also required to supply certain materials and labor for
> >> the
> >> installation.
> >>
> >>
> >> I also have a full study of Life Cycle Costs, which is arguably a
> >> better measure
> >> of the cost of a system that you want to last a long time.  With a
> >> longer
> >> projected life span (and repairability), geomembrane digesters were
> >> about 40%
> >> less expensive over a 10 year span than lower quality plastic
> >> systems.  Dome
> >> digester tend to hold their value longer in some cases, but there is
> >> a higher
> >> abandonment rate due to slow gas leaks that reduce end user
> >> satisfaction.
> >>
> >>
> >> Saludos,
> >>
> >> A
> >>
> >>
> >>
> >> On Tue, Sep 28, 2010 at 6:03 PM, Jaime Marti Herrero
> >> <tallerbiogas at hotmail.com
> >> >
> >> wrote:
> >>
> >> Hi
> >>> plugflow digester made of tubular polyethilene cost in Bolivia:
> >>> -For cold climate : 230 us$ with 6.5m3 of liquid volume, green
> >>> house, three
> >>> biogas reservoirs, and one bunner
> >>> -For valley climate: 185 us$ with 3,5m3 of liquid volume, 66% sun
> >>> cover, two
> >>> biogas reservoirs and one bunner
> >>> -For tropical climate 168 us$ witk 3 m3 of  liquid volume, 66% sun
> >>> cover, two
> >>> biogas reservoirs and one bunner
> >>> all of are load with 20kg of fresh cow manure and 60 liters of
> >>> water per day,
> >>> producing about 700 liters of biogas per day.
> >>>
> >>> We have done 1m3 tubular polyethilene digester for research
> >>> considerations using
> >>> 2m circunference plastic and 4,8 meters long. i dont have the cost
> >>> because a
> >>> plastic factory donate this material to our laboratory.
> >>>
> >>> i hope this helps
> >>> keep in touch
> >>> jaime
> >>> -----
> >>> Jaime Mart? Herrero
> >>>
> >>>
> >>> Technical advisor of biogas for the GTZ-Bolivia
> >>> CIMNE (www.cimne.com <http://www.cimne.com/> )
> >>> Building Energy and Environment Group
> >>> International research cooperation area
> >>> La Paz ? Bolivia
> >>> Tel. (+591)-73 090 621
> >>>
> >>>
> >>> BIOGAS AND BOLIVIA
> >>> -Taller Biogas Bolivia
> >>> http://tallerbiogas.blogspot.com <http://tallerbiogas.blogspot.com/>
> >>> -Video: Biodigester installation in bolivian Altiplano
> >>> http://es.youtube.com/watch?v=3Sl0XEN5Bgo
> >>> http://www.youtube.com/watch?v=Vs0JuV8WD_c
> >>> -Manual gratuito-Biodigestores familiares: Gu?a de dise?o y manual de
> >>> instalaci?n
> >>> http://www.upc.edu/grecdh/pdf/2008_JMH_Guia_biodigestores.pdf
> >>>
> >>>
> >>>
> >>>
> >>> ________________________________
> >> Date: Tue, 28 Sep 2010 10:50:06 -0700
> >>> From: ivomdb at gmail.com
> >>>
> >>> To: digestion at lists.bioenergylists.org
> >>> Subject: [Digestion] Costs of different household biodigesters
> >>>
> >>>
> >>> Hi all,
> >>>
> >>> I would like to know if anyone knows or have a good estimate of the
> >>> cost of the
> >>> following small scale biodigesters:
> >>>
> >>> 1- Plug-flow polyethylene biodigester type (like the ones in
> >>> Bolivia) (between
> >>> 1-10 m3).... I don't know if it's possible to build one with such
> >>> small size
> >>> like 1m3
> >>> 2- Chinese fixed-dome (between 1m3-10 m3)
> >>> 3- ARTI type biodigester (1-2 m3)
> >>>
> >>> Thanks,
> >>>
> >>> Ivo Oliveira
> >>>
> >>> _______________________________________________ Digestion mailing
> >>> list
> >>> Digestion at lists.bioenergylists.org
> >>>
> http://lists.bioenergylists.org/mailman/listinfo/digestion_lists.bioenergylists.org
> >>>
> >>> _______________________________________________
> >>> Digestion mailing list
> >>> Digestion at lists.bioenergylists.org
> >>>
> http://lists.bioenergylists.org/mailman/listinfo/digestion_lists.bioenergylists.org
> >>>
> >>>
> >>>
> >>
> >>
> >> --
> >> Alexander Eaton
> >> Sistema Biobolsa
> >> IRRI-Mexico
> >>
> >> Mex cel: (55) 11522786
> >> US cel: 970 275 4505
> >>
> >> alex at sistemabiobolsa.com
> >> alexanderb.eaton at gmail.com
> >> sistemabiobolsa.com <http://sistemabiobolsa.com/>
> >> www.irrimexico.org <http://www.irrimexico.org/>
> >>
> >>
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> >> End of Digestion Digest, Vol 1, Issue 17
> >> ****************************************
> >
> >
>
> --
> Sent from my mobile device
>
> Alexander Eaton
> Presidente
> Sistema Biobolsa
>
> Mex cel: (55) 11522786
> US cel: 970 275 4505
> alex at sistemabiobolsa.com
> alexanderb.eaton at gmail.com
> sistemabiobolsa.com <http://sistemabiobolsa.com/>
> www.irrimexico.org <http://www.irrimexico.org/>
>
>
>
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