The potential for biorefining of triticale to protein and sugar depends on nitrogen supply and harvest time
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The potential for biorefining of triticale to protein and sugar depends on nitrogen supply and harvest time. / Jørgensen, Henning; Thomsen, Sune Tjalfe; Schjoerring, Jan K.
In: Industrial Crops and Products, 2020.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - The potential for biorefining of triticale to protein and sugar depends on nitrogen supply and harvest time
AU - Jørgensen, Henning
AU - Thomsen, Sune Tjalfe
AU - Schjoerring, Jan K.
PY - 2020
Y1 - 2020
N2 - Biorefining of green biomasses to produce proteins for feed and food along with fibers/sugars for production offuels and chemicals constitutes one viable pathway in the transition to a bio-economy. In this respect, maximizingannual biomass output is a key parameter and one potential new concept could be green harvest ofcereal crops followed by early establishment of a cover crop. The objective of this study was to evaluate differentscenarios for harvesting and biorefining triticale either at maturity or earlier in green growth stages. Highyieldingtriticale was grown under different regimes of N-application and was harvested at three stages ofmaturity from green to full maturity. Green biomass was fractionated into a fiber rich pulp and a protein richjuice, from which a protein concentrate was produced. The digestibility and sugar potential of the fiber pulp wasevaluated against mature straw by enzymatic hydrolysis after hydrothermal pretreatment. Triticale biomass andprotein yield did not increase during the last 5–6 weeks before harvest at maturity in August. On average 21 tha−1 of dry weight biomass was harvested in early July. Fractionation of protein from the green triticale resultedin the production of 730 kg ha−1 of crude protein in a protein concentrate with an amino acid profile superior tograin protein. The structural carbohydrates in the green biomass and the fiber pulp were less recalcitrantcompared to mature straw. The total sugar potential from biorefining of green triticale was under the givenconditions up to 5.3 t ha−1.
AB - Biorefining of green biomasses to produce proteins for feed and food along with fibers/sugars for production offuels and chemicals constitutes one viable pathway in the transition to a bio-economy. In this respect, maximizingannual biomass output is a key parameter and one potential new concept could be green harvest ofcereal crops followed by early establishment of a cover crop. The objective of this study was to evaluate differentscenarios for harvesting and biorefining triticale either at maturity or earlier in green growth stages. Highyieldingtriticale was grown under different regimes of N-application and was harvested at three stages ofmaturity from green to full maturity. Green biomass was fractionated into a fiber rich pulp and a protein richjuice, from which a protein concentrate was produced. The digestibility and sugar potential of the fiber pulp wasevaluated against mature straw by enzymatic hydrolysis after hydrothermal pretreatment. Triticale biomass andprotein yield did not increase during the last 5–6 weeks before harvest at maturity in August. On average 21 tha−1 of dry weight biomass was harvested in early July. Fractionation of protein from the green triticale resultedin the production of 730 kg ha−1 of crude protein in a protein concentrate with an amino acid profile superior tograin protein. The structural carbohydrates in the green biomass and the fiber pulp were less recalcitrantcompared to mature straw. The total sugar potential from biorefining of green triticale was under the givenconditions up to 5.3 t ha−1.
KW - Faculty of Humanities
U2 - 10.1016/j.indcrop.2020.112333
DO - 10.1016/j.indcrop.2020.112333
M3 - Journal article
JO - Industrial Crops and Products
JF - Industrial Crops and Products
SN - 0926-6690
M1 - 112333
ER -
ID: 238532540