美国东南部三种甜高粱品种作为乙醇生产原料的评估
Evaluation of three cultivars of sweet sorghum as feedstocks for ethanol production in the Southeast United States.
作者信息
Ekefre Daniel E, Mahapatra Ajit K, Latimore Mark, Bellmer Danielle D, Jena Umakanta, Whitehead Gerald J, Williams Archie L
机构信息
Food Engineering Laboratory, College of Agriculture, Family Sciences and Technology, Fort Valley State University, 1005 State University Drive, Fort Valley, GA 31030, USA.
108 Food and Agricultural Products Center, Oklahoma State University, Stillwater, OK 74078, USA.
出版信息
Heliyon. 2017 Dec 28;3(12):e00490. doi: 10.1016/j.heliyon.2017.e00490. eCollection 2017 Dec.
Sweet sorghum has become a promising alternative feedstock for biofuel production because it can be grown under reduced inputs, responds to stress more efficiently than traditional crops, and has large biomass production potential. A three-year field study was conducted to evaluate three cultivars of sweet sorghum as bioenergy crops in the Southeast United States (Fort Valley, Georgia): Dale, M81 E and Theis. Parameters evaluated were: plant density, stalk height, and diameter, number of nodes, biomass yield, juice yield, °Bx, sugar production, and theoretical ethanol yields. Yields were measured at 85, 99, and 113 days after planting. Plant fresh weight was the highest for Theis (1096 g) and the lowest for Dale (896 g). M81 E reported the highest stalk dry weight (27 Mg ha) and Theis reported the lowest (21 Mg ha). Theis ranked the highest °Bx (14.9), whereas M81 E was the lowest (13.2). Juice yield was the greatest for M81 E (10915 L ha) and the lowest for Dale (6724 L ha). Theoretical conservative sugar yield was the greatest for Theis (13 Mg ha) and the lowest for Dale (9 Mg ha). Theoretical ethanol yield was the greatest for Theis (7619 L ha) and the lowest for Dale (5077 L ha).
甜高粱已成为一种很有前景的生物燃料生产替代原料，因为它可以在投入减少的情况下种植，比传统作物更有效地应对胁迫，并且具有巨大的生物质生产潜力。在美国东南部（佐治亚州福特谷）进行了一项为期三年的田间研究，以评估三个甜高粱品种作为生物能源作物的情况：戴尔、M81 E和泰斯。评估的参数包括：种植密度、茎秆高度、直径、节数、生物量产量、汁液产量、糖度、糖分产量和理论乙醇产量。在种植后85、99和113天测量产量。泰斯的植株鲜重最高（1096克），戴尔的最低（896克）。M81 E的茎秆干重最高（27公吨/公顷），泰斯的最低（21公吨/公顷）。泰斯的糖度最高（14.9），而M81 E最低（13.2）。M81 E的汁液产量最高（10915升/公顷），戴尔的最低（6724升/公顷）。理论保守糖分产量泰斯最高（13公吨/公顷），戴尔最低（9公吨/公顷）。理论乙醇产量泰斯最高（7619升/公顷），戴尔最低（5077升/公顷）。
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