The main purpose of this work was the development of a new citric acid assisted hydrothermal pretreatment of cocoa pod husks (CPH), which has not yet been exploited for pectin recovery. CPH́s pectin recovery was improved with concomitant production of xylooligosaccharides (XOS) through efficient enzymatic hydrolysis of the solid fraction. A central composite experimental design was planned to analyze the effect of pretreatment conditions. Under optimal conditions at 120 °C, 10 min and 2% w.v^-1, the recovery of pectin accounted for 19.3% of the biomass submitted to pretreatment with 52.2% of methyl esterification degree. Additionally, 51.9 mg.g⁻¹ of XOS were also produced. The enzymatic conversion efficiency of the cellulosic fraction was 58.9%, leading to a production of 92.4 kg of glucose per ton of CPH. Great perspectives were observed in the implementation of CPH hydrothermal pretreatment for the production of value-added biomolecules under a biorefinery concept.

这项工作的主要目的是开发一种新的柠檬酸辅助水热预处理可可豆壳 (CPH)，该方法尚未用于果胶回收。CPH 的果胶回收率通过固体部分的有效酶促水解同时产生低聚木糖 (XOS) 得到改善。计划采用中心复合实验设计来分析预处理条件的影响。在120°C、10分钟和2% wv ^{-1 的}最佳条件下，果胶的回收率占进行预处理的生物质的19.3%，甲酯化度为52.2%。此外，51.9 mg.g ^-1还生产了 XOS。纤维素部分的酶转化效率为 58.9%，导致每吨 CPH 产生 92.4 kg 葡萄糖。在生物精炼概念下实施 CPH 水热预处理以生产增值生物分子时，观察到了巨大的前景。