Purpose

The aims of this research were to extract sugar-based products from oil palm biomass, oil palm fronds (OPFs) and oil palm fruit pressed fibers (FPFs) via a hydrothermal process using accelerated solvent extraction and to identify the sugar content of the aqueous phase at different temperatures and reaction times.

Methods

The liquid products obtained from accelerated solvent extraction were further analyzed for the total sugar content and number of sugar components using the phenol-sulfuric acid method and gas chromatography–mass spectrometry.

Results

The highest sugar contents of the FPF and OPF samples were detected at 180 °C and at reaction times of 10 min and 30 min. Further extension of the reaction time at 180 °C showed that the optimal hydrolysis durations were 50 min for FPFs and 40 min for OPFs. These results may have been due to the physical structures and compositions of the samples. Analysis of the qualitative data indicated the presence of more sugar components in the FPF sample than in the OPF sample. This result was possibly due to the presence of unique and unidentified sugar components in the OPF sample.

Conclusions

Hydrothermal processing via accelerated solvent extraction is a promising solution for the hydrolysis and fractionation of oil palm biomass to extract total sugars.

Graphic Abstract

中文翻译：

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通过水热法从油棕生物质中无化学成分提取和鉴定糖成分

目的

这项研究的目的是通过使用加速溶剂萃取的水热工艺从油棕生物质，油棕叶状体（OPF）和油棕果压制纤维（FPF）中提取糖基产品，并确定水相中的糖含量在不同的温度和反应时间

方法

使用苯酚-硫酸法和气相色谱-质谱法进一步分析了从加速溶剂萃取中获得的液体产物的总糖含量和糖成分数。

结果

FPF和OPF样品中的最高糖含量是在180°C以及10分钟和30分钟的反应时间下检测到的。180°C下反应时间的进一步延长表明，对于FPF，最佳水解时间为50分钟，对于OPF为40分钟。这些结果可能是由于样品的物理结构和组成所致。定性数据的分析表明，FPF样品中的糖成分比OPF样品中的糖成分更多。该结果可能是由于OPF样品中存在独特且未确定的糖成分。

结论

通过加速溶剂萃取进行水热处理是一种有前景的解决方案，可用于水解和分馏油棕生物质以提取总糖。

图形摘要