Department of Food Technology, Faculty of Engineering and Industrial Technology, Silpakorn University, Nakhon Pathom 73000, Thailand.
State Institute of Agricultural Engineering and Bioenergy, University of Hohenheim, Stuttgart 70599, Germany.
Bioresour Technol. 2022 Sep;360:127640. doi: 10.1016/j.biortech.2022.127640. Epub 2022 Jul 16.
Banana trees and fruits with three ripening stages, including green, ripe, and overripe, of two cultivars, namely Nam wa and Hom were separated into different morphological parts for biogas yield determination. Specific methane yields (SMY) were significant different among banana parts (p ≤ 0.05). High non-structural carbohydrates and high non-lignocellulosic residual in substrates promoted high SMY. Pseudostem showed the highest share of energy yields among farm wastes which Nam wa cultivar provided higher energy potential than Hom. Peel presented the major energy source from fruit wastes which ripening stages did not have a significant effect on its SMY. Modified Gompertz model presented the best fit for methane production of most substrates. The SMY prediction models based on chemical constituents were developed to obtain conveniently used methane estimating tool which showed that a combination of lignin, hemicellulose, non-lignocellulosic residual, and crude fiber contents presented the highest performance for banana substrates.
香蕉树和具有三个成熟阶段的果实，包括绿熟、成熟和过熟，来自两个品种，即 Nam wa 和 Hom，被分离成不同的形态部分以确定沼气产量。香蕉各部分之间的特定甲烷产量（SMY）有显著差异（p≤0.05）。高非结构性碳水化合物和高非木质纤维素残余在基质中促进了高 SMY。假茎在农业废弃物中表现出最高的能量产量份额，而 Nam wa 品种比 Hom 提供了更高的能量潜力。果皮是水果废弃物的主要能源，其成熟阶段对其 SMY 没有显著影响。修正的 Gompertz 模型最适合大多数基质的甲烷生产拟合。基于化学组成的 SMY 预测模型被开发出来，以获得方便使用的甲烷估算工具，结果表明，木质素、半纤维素、非木质纤维素残余和粗纤维素含量的组合对香蕉基质表现出最高的性能。
