从 中提取的壳聚糖的物化、流变和抗菌性能的深入了解：一项比较研究。
Insight into Physicochemical, Rheological, and Antibacterial Properties of Chitosan Extracted from : A Comparative Study.
机构信息
College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China.
National R&D Branch Center for Freshwater Aquatic Products Processing Technology (Shanghai), Shanghai 201306, China.
出版信息
Molecules. 2020 Sep 7;25(18):4074. doi: 10.3390/molecules25184074.
In this work, physicochemical, rheological, and antibacterial properties of chitosan (CS) extracted from white shrimp (WS), giant river prawn (GP), and (AK) were investigated. The results demonstrated that molecular weight (MW) of commercial chitosan (CCS), WSCS, GPCS, and AKCS were 1175.8, 2130.4, 1293.3, and 1109.3 kDa with the degree of deacetylation (DDA) of 73.5, 74.1, 82.1, and 75.9%, respectively. Fourier transform infrared (FT-IR), X-ray diffraction (XRD), differential scanning calorimetry (DSC), and scanning electron microscope (SEM) were employed to study the structural differences of CS. Moreover, storage modulus (G') and loss modulus (G″) of AKCS were lower than that of WSCS and GPCS, respectively, but higher than that of CCS. Minimum inhibitory concentration (MIC) and minimum bacterial concentration (MBC) of CS against and were investigated at concentration between 0.0125 and 1 mg/mL. These results highlighted that AKCS with low viscoelastic properties had a potential application in food and pharmaceutical application.
本工作研究了从白虾（WS）、罗氏沼虾（GP）和中国明对虾（AK）中提取的壳聚糖（CS）的物理化学、流变学和抗菌性能。结果表明，商业壳聚糖（CCS）、WSCS、GPCS 和 AKCS 的分子量（MW）分别为 1175.8、2130.4、1293.3 和 1109.3 kDa，脱乙酰度（DDA）分别为 73.5、74.1、82.1 和 75.9%。傅里叶变换红外（FT-IR）、X 射线衍射（XRD）、差示扫描量热法（DSC）和扫描电子显微镜（SEM）用于研究 CS 的结构差异。此外，AKCS 的储能模量（G'）和损耗模量（G″）分别低于 WSCS 和 GPCS，但高于 CCS。在 0.0125 至 1 mg/mL 的浓度范围内，研究了 CS 对 和 的最小抑菌浓度（MIC）和最小细菌浓度（MBC）。这些结果表明，具有低粘弹性能的 AKCS 具有在食品和医药应用中的潜在应用。
Zotero 插件