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Item type:Publication, Access status: with files , Plant-based fructans for increased animal welfare: provision processes and remaining challengesFructans are carbohydrates consisting of fructose monomers linked by β-2,1- and/or β-2,6-glycosidic bonds with linear or branched structure. These carbohydrates belong to the group of prebiotic dietary fibre with health-promoting potential for humans and mammals due to their indigestibility and selective stimulation of microorganisms in the gastrointestinal tract. This makes fructans interesting mainly for healthy food as well as animal feed applications. As a consequence of a growing public awareness for animal welfare, dietary fibre and thus fructans move into the focus as a fibre-rich feeding improving not only animals’ health but also their well-being. Against this background, this paper summarises the known effects of fructans focusing on pigs and highlights the state of the art in fructan production processes from plant material as well as selected current research lines. Additionally, an attempt is made to assess the potential of European fructan production for an application as animal feed. Based on this, challenges in the field of fructan production are addressed and alternative substrates for fructans are discussed and pointed out.Publicationtype: Review ArticleScopus© Citations 7 121 139 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: with files , Quantification of fructans in cereal-based bioethanol stillage based on a simplified analytical methodBackground and Objectives Cereal-based bioethanol stillage, the main by-product of industrial bioethanol production, is a potential substrate for fructans. However, the quantification of fructans in such complex sample matrices is still a challenge for the corresponding analytics to be overcome to allow for the identification and utilization of such unused fructan sources. Especially a possible utilization or rather the corresponding process development requires appropriate analytics first. Thus, this paper aims to develop and apply a method for fructan quantification in bioethanol stillage using common a high-performance liquid chromatography–refractive index detector. Findings A new approach for fructan quantification is presented allowing for simple fructan determination in bioethanol stillage for comparably high sample throughput. The developed analytical method performs fructan quantification by means of fructose- and glucose-equivalent determination after targeted acidic hydrolysis adapted to the respective sample matrix. On the basis of this method, up to 2.5% of fructans were found in the dry matter of cereal-based bioethanol stillage. Conclusion Cereal-based bioethanol stillage is assessed to be a potential source of fructans. The presented analytical method can be the basis for respective process development and, thus, may contribute to a higher-value utilization of stillage. Significance and Novelty According to current knowledge, no determination of fructans in stillage or corresponding analytical methods have been published so far.Publicationtype: Journal ArticleScopus© Citations 2 91 167