Component analysis and utilization strategy of brown macroalgae as promising feedstock for sugar platform-based marine biorefinery

IF 2.5 4区 生物学 Q3 BIOTECHNOLOGY & APPLIED MICROBIOLOGY Biotechnology and Bioprocess Engineering Pub Date : 2024-02-14 DOI:10.1007/s12257-024-00022-8
Jeongho Lee, Hyeonmi Shin, Kang Hyun Lee, Hyeseon Lee, Giwon Lee, Sungho Jang, Gyoo Yeol Jung, Hah Young Yoo, Chulhwan Park
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Abstract

Brown algae have gained attention as a sustainable feedstock for biorefineries due to their ability to sequester carbon dioxide, rapid growth, and high carbohydrate content. The carbohydrate content in brown algae has only been analyzed for a few species, and in most cases, access to fundamental data such as sugar composition is limited, which hinders the assessment of brown algal biomass-based biorefining potential. In this study, the carbohydrate composition of brown algae (Undaria pinnatifida, Saccharina japonica, Ecklonia cava, and Ecklonia stolonifera) was analyzed in detail and application directions were proposed. As a result, alginate and glucan were detected in all resources, and the contents (alginate and glucan wt%) were as follows: U. pinnatifida (39.6 and 4.9 wt%), S. japonica (34.0 and 6.3 wt%), E. cava (24.3 and 7.7 wt%), and E. stolonifera (39.1 and 9.7 wt%). All feedstocks contain trace amounts (2.9–4.9 wt%) or no xylan-mannan-galactan. Mannitol was detected only in S. japonica (26.7 wt%) in rich, showing high potential as a biorefinery feedstock. We highlight that the carbohydrate composition of E. cava and E. stolonifera was analyzed for the first time and the potential use of brown algal biomass in a biorefinery approach.

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棕色大型藻类作为基于制糖平台的海洋生物精炼厂的理想原料的成分分析和利用策略
褐藻作为生物精炼厂的可持续原料,因其具有二氧化碳封存能力、快速生长和高碳水化合物含量而备受关注。目前仅对少数几种褐藻的碳水化合物含量进行了分析,而且在大多数情况下,获取糖类成分等基本数据的途径有限,这阻碍了对褐藻生物质生物精炼潜力的评估。本研究详细分析了褐藻(Undaria pinnatifida、Saccharina japonica、Ecklonia cava 和 Ecklonia stolonifera)的碳水化合物组成,并提出了应用方向。结果在所有资源中都检测到了藻酸盐和葡聚糖,其含量(藻酸盐和葡聚糖重量百分比)如下:U. pinnatifida(39.6 和 4.9 wt%)、S. japonica(34.0 和 6.3 wt%)、E. cava(24.3 和 7.7 wt%)以及 E. stolonifera(39.1 和 9.7 wt%)。所有原料都含有微量(2.9-4.9 wt%)或不含木聚糖-甘露聚糖-半乳聚糖。仅在富含甘露糖醇(26.7 wt%)的 S. japonica 中检测到甘露糖醇,显示出作为生物精炼原料的巨大潜力。我们强调首次分析了 E. cava 和 E. stolonifera 的碳水化合物组成,以及褐藻生物质在生物精炼方法中的潜在用途。
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来源期刊
Biotechnology and Bioprocess Engineering
Biotechnology and Bioprocess Engineering 工程技术-生物工程与应用微生物
CiteScore
5.00
自引率
12.50%
发文量
79
审稿时长
3 months
期刊介绍: Biotechnology and Bioprocess Engineering is an international bimonthly journal published by the Korean Society for Biotechnology and Bioengineering. BBE is devoted to the advancement in science and technology in the wide area of biotechnology, bioengineering, and (bio)medical engineering. This includes but is not limited to applied molecular and cell biology, engineered biocatalysis and biotransformation, metabolic engineering and systems biology, bioseparation and bioprocess engineering, cell culture technology, environmental and food biotechnology, pharmaceutics and biopharmaceutics, biomaterials engineering, nanobiotechnology, and biosensor and bioelectronics.
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