This study is aimed at assessing the potential of apple pomace (AP) as a substrate for biofuel production following a biorefinery approach. Two different APs, from juice and cider production were evaluated. First, bioethanol generation was performed and its fermentation residues, together with available biobutanol fermentation residues, were studied for biogas production. Moreover, co-digestion of AP and swine manure was investigated following a factorial design. Twelve different bacterial and yeast strains were compared for bioethanol production, obtaining bioethanol concentrations about 50 g L⁻¹ by different strains of Kluyveromyces marxianus, K. lactis, Lachancea thermotolerans and Saccharomyces cerevisiae, with yields of 0.371–0.444 g g⁻¹. Specific methane yields of the fermentation residues of bioethanol and biobutanol production were 463 and 290 mL CH₄ g ⁻¹ _{VS added}, respectively. Methane yield for the co-digestion of AP and swine manure was 596 mL CH₄ g⁻¹ _{VS added}, with an AP percentage of 14.6% and a substrate concentration of 9.38 g VS L⁻¹.

这项研究旨在评估苹果渣（AP）作为生物精炼方法生产生物燃料的基质的潜力。评估了果汁和苹果酒生产中的两种不同的AP。首先，进行了生物乙醇的生产，并研究了其发酵残留物以及可用的生物丁醇发酵残留物，以生产沼气。此外，根据析因设计研究了AP和猪粪的共同消化。十二种不同的细菌和酵母菌株生产生物乙醇进行比较，从而获得约50克L-生物乙醇浓度^-1 通过的不同菌株马克斯克鲁维酵母，乳酸克鲁维酵母，Lachancea thermotolerans和酿酒酵母，产量为0.371–0.444 g g ^-1。生物乙醇和生物丁醇生产的发酵残留物的特定甲烷产率分别为463和290毫升CH ₄克^-1 _VS添加，分别。添加的AP和猪粪共同消化的甲烷产量为596 mL CH ₄ g ^-1 _VS，AP百分比为14.6％，底物浓度为9.38 g VS L ^-1。