TY - JOUR
T1 - Evaluation of the multi-seeded (msd) mutant of sorghum for ethanol production
AU - Zhang, Ke
AU - Zheng, Guoxiang
AU - Saul, Kaelin
AU - Jiao, Yinping
AU - Xin, Zhanguo
AU - Wang, Donghai
N1 - Publisher Copyright:
© 2016 Elsevier B.V.
PY - 2017/3/1
Y1 - 2017/3/1
N2 - Grain sorghum [Sorghum bicolor (L.) Moench], a cost effective crop in semiarid regions, is an underestimated supplement to corn in starch based ethanol production. Twenty-three multi-seeded (msd) mutant sorghums and one wild type sorghum BTx623 were evaluated for ethanol production and chemical composition, pasting properties, and grain structure on ethanol yield and fermentation efficiency. Starch contents of the msd mutant sorghums ranged from 66.31 to 75.65%, while the starch content of BTx623 was 74.25%. The protein, fat and free amino nitrogen (FAN) contents of the msd mutant sorghums ranged from 9.44–13.33%, 0.81–2.03% and 873.2–925.4 μg/g, respectively. The ethanol fermentation efficiency of msd mutant sorghums ranged from 87.29 to 92.54%. Taking into account that msd mutant sorghum can produce more than twice the amount of seed weight per panicle as wild type BTx623, msd mutant M2, the highest ethanol yield sample, could produce more than twice the amount of ethanol as wild type BTx623. All sorghum samples can be classified into three groups based fermentation rate: fast, medium and slow. For msd mutant sorghums with starch content higher than 71%, fermentation efficiencies were higher than 90%, and ethanol yields were higher than 470 L/ton sorghum. In addition, the fermentation curves showed most of msd mutant sorghums took less time to complete fermentation (40–50 h), indicating msd mutant sorghums have a great potential for biofuel application due to their high starch content, high fermentation efficiency, and final ethanol yield. Taking into account the best msd mutant sorghum that can produce more than twice the amount of seed weight as wild type sorghum, the best msd mutant could produce more than twice the amount of ethanol as wild type.
AB - Grain sorghum [Sorghum bicolor (L.) Moench], a cost effective crop in semiarid regions, is an underestimated supplement to corn in starch based ethanol production. Twenty-three multi-seeded (msd) mutant sorghums and one wild type sorghum BTx623 were evaluated for ethanol production and chemical composition, pasting properties, and grain structure on ethanol yield and fermentation efficiency. Starch contents of the msd mutant sorghums ranged from 66.31 to 75.65%, while the starch content of BTx623 was 74.25%. The protein, fat and free amino nitrogen (FAN) contents of the msd mutant sorghums ranged from 9.44–13.33%, 0.81–2.03% and 873.2–925.4 μg/g, respectively. The ethanol fermentation efficiency of msd mutant sorghums ranged from 87.29 to 92.54%. Taking into account that msd mutant sorghum can produce more than twice the amount of seed weight per panicle as wild type BTx623, msd mutant M2, the highest ethanol yield sample, could produce more than twice the amount of ethanol as wild type BTx623. All sorghum samples can be classified into three groups based fermentation rate: fast, medium and slow. For msd mutant sorghums with starch content higher than 71%, fermentation efficiencies were higher than 90%, and ethanol yields were higher than 470 L/ton sorghum. In addition, the fermentation curves showed most of msd mutant sorghums took less time to complete fermentation (40–50 h), indicating msd mutant sorghums have a great potential for biofuel application due to their high starch content, high fermentation efficiency, and final ethanol yield. Taking into account the best msd mutant sorghum that can produce more than twice the amount of seed weight as wild type sorghum, the best msd mutant could produce more than twice the amount of ethanol as wild type.
KW - Bioethanol yield
KW - Fermentation
KW - Fermentation efficiency
KW - Mutant sorghum
KW - Starch content
UR - http://www.scopus.com/inward/record.url?scp=85008958414&partnerID=8YFLogxK
U2 - 10.1016/j.indcrop.2016.12.015
DO - 10.1016/j.indcrop.2016.12.015
M3 - Article
AN - SCOPUS:85008958414
VL - 97
SP - 345
EP - 353
JO - Industrial Crops and Products
JF - Industrial Crops and Products
SN - 0926-6690
ER -