Fruits-and-vegetables wastes (FVW) and corn stover (CS) are two of the most recurred lignocellulosic biomasses used for biofuel production. In this work, the co-processing of FVW and CS for biohydrogen production was proposed and evaluated through a set of experimental designs. First, a 5 × 2 general factorial was applied on the dilute acid pretreatment at five levels of FVW:CS ratios (0:1, 1:3, 1:1, 3:1 and 1:0 dry mass basis) and two levels of the type of catalyst (HCl or H₂SO₄ at 0.5% in volumetric basis). Then, biohydrogen production using the dilute acid hydrolyzates was carried out in batch mode at 35 °C in a 3² factorial design, the factors being the inoculum to substrate ratio (0.8, 1.0, and 1.2 g g⁻¹) and the initial concentration of reducing sugars (10, 13 and 16 g L⁻¹). The effects of the type of acid catalyst and the FVW:CS ratio were significant in terms of sugars production and yield. The best catalyst was HCl for the 3:1 FVW:CS ratio, which produced monomeric sugars concentrations of 10.0, 3.7 and 2.9 g L⁻¹ for glucose, xylose and arabinose, respectively. The hydrolyzates were suitable for biohydrogen production, reaching yields of 2.31 mol H₂ mol⁻¹glucose and hydrogen production rates of 8.83 mL H₂ h⁻¹. An economic prospection at lab scale demonstrated that hydrogen production presented net revenues of 0.009 USD per kg of co-substrates, resulting in 24% profitability of hydrogen production over its production costs. Therefore, this co-processing is an interesting proposal with further applications on biorefinery models.

水果和蔬菜废物（FVW）和玉米秸秆（CS）是用于生物燃料生产的两种最常出现的木质纤维素生物质。在这项工作中，提出并通过一系列实验设计对FVW和CS用于生物制氢的协同处理进行了评估。首先，在FVW：CS比率的五个级别（0：1、1：3、1：1、3：1和1：0干燥质量）的五个级别上，对稀酸预处理应用5×2的一般阶乘。催化剂类型（HCl或H ₂ SO _4的体积百分比为0.5％）。然后，在3 ²因子设计中，在35°C下以分批模式使用稀酸水解产物进行生物制氢，因子为接种物与底物的比例（0.8、1.0和1.2 g g ^-1）和还原糖的初始浓度（10、13和16 g L ^-1）。酸催化剂的类型和FVW：CS比率对糖产量和收率的影响很大。最佳的催化剂是HCl，其FVW：CS比率为3：1，对于葡萄糖，木糖和阿拉伯糖，其单体糖浓度分别为10.0、3.7和2.9 g L ^-1。水解产物适用于生物氢生产，达到2.31 mol H ₂ mol ^-1葡萄糖的产率和8.83 mL H ₂ h ^-1的氢气产生速率。实验室规模的经济前景表明，制氢所产生的净收入为每千克复合基板0.009美元，因此制氢的利润率超过其生产成本。因此，这种协同处理是一个有趣的建议，可进一步应用于生物精炼模型。