Direct Degradation of Fresh and Dried Macroalgae by <i>Agarivorans albus</i> B2Z047

oleh: Ya Gong, Dan-Dan Shang, Cheng-Lin Sun, Zong-Jun Du, Guan-Jun Chen

Format: Article
Diterbitkan: MDPI AG 2024-04-01

Deskripsi

Marine macroalgae are increasingly recognized for their significant biological and economic potential. The key to unlocking this potential lies in the efficient degradation of all carbohydrates from the macroalgae biomass. However, a variety of polysaccharides (alginate, cellulose, fucoidan, and laminarin), are difficult to degrade simultaneously in a short time. In this study, the brown alga <i>Saccharina japonica</i> was found to be rapidly and thoroughly degraded by the marine bacterium <i>Agarivorans albus</i> B2Z047. This strain harbors a broad spectrum of carbohydrate-active enzymes capable of degrading various polysaccharides, making it uniquely equipped to efficiently break down both fresh and dried kelp, achieving a hydrolysis rate of up to 52%. A transcriptomic analysis elucidated the presence of pivotal enzyme genes implicated in the degradation pathways of alginate, cellulose, fucoidan, and laminarin. This discovery highlights the bacterium’s capability for the efficient and comprehensive conversion of kelp biomass, indicating its significant potential in biotechnological applications for macroalgae resource utilization.