The protein fraction from wheat-based dried distiller's grain with solubles (DDGS): extraction and valorization.
The protein fraction from wheat-based dried distiller's grain with solubles (DDGS): extraction and valorization.
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DOI：
10.1016/j.nbt.2015.01.007
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发表时间：
2015-12-25
影响因子：
5.4
通讯作者：
Lye GJ
中科院分区：
文献类型：
--
作者：
Villegas-Torres MF;Ward JM;Lye GJ
小麦DDGS是第一代生物乙醇设施的主要副产品。原料和加工的可变性导致小麦DDGS批次不一致，阻碍了蛋白质预测。我们描述了从小麦DDGS中提取面筋的可能方法。我们讨论了将小麦DDGS中的蛋白质部分作价为化学品或生物材料的选项。如今，全世界都有兴趣发展一种以生物基化学品为主要行为者的可持续经济。有多种潜在的原料，包括甘油、菜籽粕和城市固体废物(MSW)。对于生物精炼应用，来自酿酒厂和生物乙醇厂的副产品流，如小麦干酒糟(DDGS)，特别有吸引力，因为它们不会竞争土地使用。小麦DDGS富含多聚糖、蛋白质和油，使其成为目前理想的动物饲料，也是未来合成精细和商品化学品的底物。本文主要介绍了小麦DDGS中蛋白质组分的提取和价态测定，因为目前对这方面的研究还相对较少。由于在不久的将来，由于英国生物乙醇产业的扩张，预计小麦DDGS的产量将大幅增加，因此迫切需要对DDGS的组成部分进行定价的策略。
Wheat DDGS is a major by-product from first generation bioethanol facilities. Variability in feedstocks and processing generates inconsistent batches of wheat DDGS impeding protein prediction. We described possible methods for extraction of gluten from wheat DDGS. We discuss options for valorization of the protein fraction from wheat DDGS into chemicals or biomaterials. Nowadays there is worldwide interest in developing a sustainable economy where biobased chemicals are the lead actors. Various potential feedstocks are available including glycerol, rapeseed meal and municipal solid waste (MSW). For biorefinery applications the byproduct streams from distilleries and bioethanol plants, such as wheat-based dried distiller's grain with solubles (DDGS), are particularly attractive, as they do not compete for land use. Wheat DDGS is rich in polymeric sugars, proteins and oils, making it ideal as a current animal feed, but also a future substrate for the synthesis of fine and commodity chemicals. This review focuses on the extraction and valorization of the protein fraction of wheat DDGS as this has received comparatively little attention to date. Since wheat DDGS production is expected to increase greatly in the near future, as a consequence of expansion of the bioethanol industry in the UK, strategies to valorize the component fractions of DDGS are urgently needed.