Department of Systems and Synthetic Biology, Agricultural Biotechnology Research Institute of Iran (ABRII), Agricultural Research Education and Extension Organization (AREEO), Karaj, Iran.
Department of Microbial Biotechnology, Agricultural Research Education and Extension Organization (AREEO), Agricultural Biotechnology Research Institute of Iran (ABRII), Karaj, Iran.
BMC Biotechnol. 2024 Oct 8;24(1):76. doi: 10.1186/s12896-024-00904-y.
The encapsulation of metagenome-derived multi-enzymes presents a novel approach to improving poultry feed by enhancing nutrient availability and reducing anti-nutritional factors. By integrating and encapsulated enzymes such as carbohydrate-hydrolyzing enzymes, protease, lipase, and laccase into feed formulations, this method not only improves feed digestibility but also potentially contributes to animal health and productivity through antimicrobial properties.
This study investigates the encapsulation of metagenome-derived enzymes, including carbohydrate-hydrolyzing enzymes, protease, lipase, and laccase, using Arabic and Guar gums as encapsulating agents. The encapsulated multi-enzymes exhibited significant antimicrobial activity, achieving a 92.54% inhibition rate against Escherichia coli at a concentration of 6 U/mL. Fluorescence tracking with FITC-labeled enzymes confirmed efficient encapsulation and distribution, while physical characterization, including moisture content and solubility assessments, along with Atomic Force Microscopy (AFM) imaging, validated successful encapsulation. The encapsulated enzymes also effectively hydrolyzed poultry feed, leading to an increase in phenolic content and antioxidant activity, as confirmed by 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid (ABTS) and 2,2-diphenyl-1-picrylhydrazyl (DPPH) assays.
The encapsulated multi-enzymes improved the overall feed quality by increasing reducing sugars and enhancing physical properties such as solubility and water-holding capacity. The encapsulated multi-enzymes improved the overall feed quality by increasing reducing sugars, antioxidant activity and enhancing physical properties such as solubility and water-holding capacity. Scanning Electron Microscopy (SEM) and Fourier-Transform Infrared Spectroscopy (FTIR) analyses confirmed the enzymatic breakdown of the feed structure. These results suggest that supplementing poultry feed with encapsulated multi-enzymes can enhance its physical, nutritional, and functional properties, leading to improved digestibility and overall feed quality.
通过整合和封装碳水化合物水解酶、蛋白酶、脂肪酶和漆酶等酶,将宏基因组衍生的多酶封装到饲料配方中,不仅可以提高饲料的消化率,还可以通过抗菌特性为动物健康和生产力做出贡献,从而为提高家禽饲料提供了一种新方法。
本研究使用阿拉伯胶和瓜尔胶作为包封剂,对宏基因组衍生酶(包括碳水化合物水解酶、蛋白酶、脂肪酶和漆酶)进行包封。封装的多酶对大肠杆菌表现出显著的抗菌活性,在 6 U/mL 的浓度下抑制率达到 92.54%。用 FITC 标记的酶进行荧光跟踪证实了有效的包封和分布,而物理特性评估,包括水分含量和溶解度评估以及原子力显微镜(AFM)成像,验证了成功的包封。封装的酶还可以有效地水解家禽饲料,导致酚含量和抗氧化活性增加,这一点通过 2,2'-联氮双(3-乙基苯并噻唑啉-6-磺酸)(ABTS)和 2,2-二苯基-1-苦基肼(DPPH)测定得到证实。
封装的多酶通过增加还原糖并提高溶解度和持水能力等物理特性来提高整体饲料质量。封装的多酶通过增加还原糖、抗氧化活性和提高溶解度和持水能力等物理特性来提高整体饲料质量。扫描电子显微镜(SEM)和傅里叶变换红外光谱(FTIR)分析证实了饲料结构的酶促分解。这些结果表明,在禽饲料中添加封装的多酶可以增强其物理、营养和功能特性,从而提高消化率和整体饲料质量。