From a lignin-rich bioresidue to a functional colloid for consumer goods application

从富含木质素的生物残留物到消费品应用的功能性胶体

• 批准号: 2298793
• 金额: --
• 依托单位: University of Birmingham
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2019
• 资助国家: 英国
• 起止时间: 2019 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2298793
• 关键词: lignin; rich; bioresidue; functional; colloid

Lignin is the second most abundant natural polymer after cellulose and the only large-volume renewable aromatic feedstock found in most terrestrial plants. It is available as bioresidue from several industries, e.g., bioethanol generation, paper and pulp processing, and the food and drink industry. Traditionally, lignin has been burnt for energy generation. However, its unique hydrophobic character, although depending on botanical origin and bioresidue processing method hydrophilic and amphiphilic character have been reported, makes it an interesting material for the design of functional colloidal materials. This is especially interesting in the design of functional colloidal materials for application in consumer goods, such as foods and personal care products, where chemically modified ingredients tend to be consumer adverse. While lignin nanomaterials are not per-se novel, there is little understanding how to design these for application in specific products to assume the required functionality. In particular intriguing is the observation that lignin nanoparticles are mostly described for the stabilisation of oil-in-water emulsions despite the predominantly hydrophobic character of lignin. In non-consumer goods application, these materials have been applied to reinforce structures.The overall aim of this PhD project is to further our understanding of the functional properties of lignin colloidal materials to develop design rules for their application as sustainable ingredient in consumer goods. The research focus will be subject to discussion between researcher and student. It could be the stabilisation of interfaces, in food or personal care formulations, or functionality as inert filler particle in fat continuous matrices. Research methods will be similar including extraction, chemical fingerprinting by spectroscopy, colloid processing, interfacial tension and rheology, contact angle, rheology,

木质素是仅次于纤维素的第二丰富的天然聚合物，也是在大多数陆地植物中发现的唯一大量可再生的芳香族原料。它可以作为生物残余物用于几个行业，例如生物乙醇生产、纸张和纸浆加工以及食品和饮料行业。传统上，木质素是为了发电而燃烧的。然而，其独特的疏水性使其成为设计功能胶体材料的一种有趣的材料，尽管它的亲水性和两亲性已被报道过，但这取决于植物来源和生物残留处理方法。这在设计用于消费品(如食品和个人护理产品)的功能性胶体材料时尤其令人感兴趣，在这些消费品中，化学修饰的成分往往对消费者不利。虽然木质素纳米材料本身并不新颖，但人们对如何设计这些材料以应用于特定产品以承担所需功能的了解很少。尤其耐人寻味的是，尽管木质素具有明显的疏水性，但木质素纳米颗粒主要用于稳定水包油乳状液。在非消费品应用中，这些材料被用于加固结构。本博士项目的总体目的是加深我们对木质素胶体材料功能特性的了解，为其作为消费品可持续成分的应用制定设计规则。研究的重点将由研究人员和学生讨论。它可以是食品或个人护理配方中界面的稳定，也可以是脂肪连续基质中作为惰性填充物颗粒的功能。研究方法将是相似的，包括萃取、光谱化学指纹分析、胶体处理、界面张力和流变学、接触角、流变学、