通过不同方法干燥/破碎的特定生物质及其在生物膜生产中的应用。
sp. biomass dried/disrupted by different methods and their application in biofilms production.
作者信息
Larrosa Ana P Q, Camara Álisson S, Moura Jaqueline M, Pinto Luiz A A
机构信息
1School of Chemistry and Food, Federal University of Rio Grande-FURG, Km 8 Italia Avenue, Rio Grande, RS 96203-900 Brazil.
2Food Engineering Department, Universidade Estadual do Centro-Oeste do Paraná (UNICENTRO), 03 Simeão Camargo Varela de Sá Street, Guarapuava, PR 85040-080 Brazil.
出版信息
Food Sci Biotechnol. 2018 May 23;27(6):1659-1665. doi: 10.1007/s10068-018-0397-y. eCollection 2018 Dec.
biomass is a source of intracellular compounds with great commercial interest, such as phycocyanin and phenolic compounds. In this work, different cell disruption methods of the microalgae biomass dried in spouted bed and in conventional tray were performed, aiming lead to the better extraction yields of these compounds. The samples of both drying techniques with the most suitable cell disruption were used to biofilms production. FTIR, DSC, and SEM for all samples were performed. The samples dried in spouted bed with cell disruption by milling and by microwave showed the best results for the powder products, with phycocyanin contents of 75.0 and 85.4 mg g, and total phenolic compounds of 41.6 and 41.9 mg g, respectively. However, the tray drying/milling produced the biofilms with the best characteristics (tensile strength of 3.69 MPa and water vapor permeability of 1.67 × 10 g m s m Pa) and the highest thermal stability.
生物质是具有巨大商业价值的细胞内化合物的来源，如藻蓝蛋白和酚类化合物。在这项工作中，对在喷动床和传统托盘中干燥的微藻生物质进行了不同的细胞破碎方法，旨在获得这些化合物的更好提取率。将两种干燥技术中最适合细胞破碎的样品用于生物膜生产。对所有样品进行了傅里叶变换红外光谱（FTIR）、差示扫描量热法（DSC）和扫描电子显微镜（SEM）分析。通过研磨和微波对在喷动床中干燥的样品进行细胞破碎，对粉末产品显示出最佳结果，藻蓝蛋白含量分别为75.0和85.4 mg/g，总酚类化合物含量分别为41.6和41.9 mg/g。然而，托盘干燥/研磨产生的生物膜具有最佳特性（拉伸强度为3.69 MPa，水蒸气透过率为1.67×10 g m s m Pa）和最高的热稳定性。
Zotero 插件