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Production of Food-Grade Glucose from Rice and Wheat Residues Using a Biocompatible Ionic Liquid
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2021-06-09 , DOI: 10.1021/acssuschemeng.1c00022
Azmat Mehmood Asim 1 , Maliha Uroos 1 , Nawshad Muhammad 2 , Jason P. Hallett 3
Affiliation  

The anticipated high future demand for food proteins has led to the advent of mycoprotein, which involves carbohydrate sugars as the primary carbon source. In this work, nonfood rice and wheat residues have been utilized to produce food-grade glucose using an ionic liquid. A biocompatible ionic liquid (IL) based on food-grade cholinium hydroxide and lysine has been evaluated for its potential to remove undesirable components such as, lignin and hemicellulose from rice and wheat straws. The cellulose pulp, thus obtained, was subsequently hydrolyzed into glucose by using food-grade enzymes. The optimum delignification efficiency of the IL is 87% at 120 °C after 8 h pretreatment. The optimum yield of food-grade sugar was 77% from cellulose pulp after processing at 100 °C for 8 h. The analysis of the pulp and lignin was made using compositional analysis, FT-IR, TGA, and SEM techniques, whereas glucose was quantified using HPLC. The food-grade glucose may be used in the food industry or pharmaceuticals, but this study aims at synthesizing mycoprotein in the future.

中文翻译:

使用生物相容性离子液体从稻米和小麦渣中生产食品级葡萄糖

预计未来对食物蛋白质的高需求导致了霉菌蛋白的出现,它涉及碳水化合物作为主要碳源。在这项工作中,非食用大米和小麦残留物已被用于使用离子液体生产食品级葡萄糖。已经评估了基于食品级氢氧化胆碱和赖氨酸的生物相容性离子液体 (IL) 从稻草和小麦秸秆中去除不需要的成分,如木质素和半纤维素的潜力。如此获得的纤维素纸浆随后通过使用食品级酶水解成葡萄糖。预处理 8 小时后,IL 在 120°C 下的最佳脱木素效率为 87%。在 100 °C 下加工 8 小时后,纤维素纸浆的食品级糖的最佳产率为 77%。纸浆和木质素的分析使用成分分析、FT-IR、TGA 和 SEM 技术进行,而葡萄糖使用 HPLC 进行定量。食品级葡萄糖可用于食品工业或制药,但本研究的目标是在未来合成真菌蛋白。
更新日期:2021-06-21
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