02643naa a2200337 a 450000100080000000500110000800800410001902400390006010000190009924501150011826000090023350003240024252013130056665300150187965300120189465300230190665300260192965300250195565300280198070000170200870000170202570000160204270000170205870000180207570000190209370000180211270000160213070000150214670000260216177301180218710616812021-01-27       2021    bl uuuu     u00u1 u    #d7 a10.1016/j.heliyon.2021.e060312DOI1 aBONIFACINO, S.  aBioethanol production using high density Eucalyptus crops in Uruguay [Research article]h[electronic resource]  c2021  aArticle history: Received 9 August 2020; Received in revised form 16 November 2020; Accepted 14 January 2021.  Corresponding author. E-mail address: silvana.bonifacino@gmail.com (S. Bonifacino). Acknowledgements: The authors thank the Forestal Oriental Company for its collaborationin thefield experiments and planting.  aExperimental scale crops for Eucalyptus grandis, Eucalyptus benthamii, Eucalyptus dunnii and Eucalyptus tereticornis, at 2,220, 4,440 and 6,660 trees ha?1 were established in two soil units, at Paysandú and Tacuarembó, Uruguay. Wood samples were taken from twenty-two-months-old trees, and were used to produce bioethanol by pre-hydrolysis simultaneous saccharyfication and fermentation process (PSSF). Cellulose and lignin content was analyzed. Species and planting density affected biomass production at both sites; the highest value was obtained with E. dunnii at 6,660 trees ha?1 at Paysandú. Cellulose content of wood varied between species at both sites, but only between planting densities at Tacuarembó. The site effect showed that the highest amount of cellulose (14.7 Mg ha?1) was produced at Paysandú. E. benthamii and E. tereticornis wood showed higher lignin contents, conversely, the PSSF yields showed no differences, which led to a bioethanol average of 97 L Mg?1. Bioethanol productivity was associated to the biomass productivity. It was possible to obtain 2,650 L ha?1 of bioethanol using wood from E. benthamii, E. dunnii and E. grandis at 4,440 and 6,660 trees ha?1 at Paysandú, and with E. benthamii at 4,440 and 6,660 trees ha?1, and E. dunnii at 6,660 trees ha?1 at Tacuarembó.  aBIOETHANOL  aBIOMASS  aEUCALYPTUS SPECIES  aHIGH PLANTING DENSITY  aPRODUCCIÓN FORESTAL  aSHORT ROTATION FORESTRY1 aRESQUÍN, F.1 aLOPRETTI, M.1 aBUXEDAS, L.1 aVÁZQUEZ, S.1 aGONZÁLEZ, M.1 aSAPOLINSKI, A.1 aHIRIGOYEN, A.1 aDOLDÁN, J.1 aRACHID, C.1 aCARRASCO-LETELIER, L.  tHeliyon, January 2021, Volume 7, Issue 1, e06031. OPEN ACCESS. Doi: https://doi.org/10.1016/j.heliyon.2021.e06031