Feruloylated Arabinoxylans from Wheat Bran: Optimization of Extraction Process and Validation at Pilot Scale,ACS Sustainable Chemistry & Engineering

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Feruloylated Arabinoxylans from Wheat Bran: Optimization of Extraction Process and Validation at Pilot Scale
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2019-07-02 00:00:00 , DOI: 10.1021/acssuschemeng.9b02329
Reskandi C. Rudjito ₁ , Andrea C. Ruthes ₁ , Amparo Jiménez-Quero ₁ , Francisco Vilaplana ₁

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The extraction of feruloylated arabinoxylan (AX) from wheat bran was optimized in terms of the pretreatments prior to subcritical water extraction and then validated at the pilot scale. Destarching of wheat bran was critical to improve the yields and purity of the extracted AX. Time evolution profiles from sequential extractions revealed differences in the extractability of different polysaccharides, whereby β-d-glucans were first extracted followed by AX. At longer extraction times, the AX population was more substituted and more uniform in terms of molar mass distribution. Validation of the process at pilot scale (with a scaling factor of 33) resulted in AXs with similar molecular characteristics as in the laboratory scale. Both solid to liquid ratio and extraction time were essential in improving the yields. Our study demonstrated scalability of the process, opening opportunities for the further development of multifunctional food and material products from the extracted AXs.

中文翻译：

小麦麸皮中阿魏酸的阿拉伯木聚糖：提取工艺的优化和中试规模的验证

在亚临界水提取之前，根据预处理对麦麸中阿魏酸酯化阿拉伯木聚糖（AX）的提取进行了优化，然后在中试规模上进行了验证。麦麸的去淀粉对于提高提取的AX的产量和纯度至关重要。顺序提取的时间演变曲线表明，不同多糖的提取能力存在差异，因此β- d首先提取-葡聚糖，然后进行AX。在更长的提取时间下，就摩尔质量分布而言，AX种群更易被取代且更均匀。在中试规模（比例因子为33）下对过程进行验证导致AX具有与实验室规模相似的分子特性。固液比和萃取时间对于提高产率都是必不可少的。我们的研究证明了该过程的可扩展性，为进一步开发从提取的AXs中提取多功能食品和材料产品提供了机会。

更新日期：2019-07-02

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