不同破壁技术对桑黄功能性成分提取率的影响

Effect of Different Cell Wall Disruption Techniques on the Extraction Yields of Functional Components from Fruit Bodies of Phellinus linteus

以桑黄干燥子实体为原料,比较普通粉碎、双螺杆挤压膨化和流化床对撞式气流超微粉碎对桑黄颗粒粒径、形貌和功能性成分提取的影响。结果表明,与普通粉碎相比,双螺杆挤压膨化和流化床对撞式气流超微粉碎细胞破壁彻底,平均粒径(D_(50))分别为7.44μm和5.53μm,粉碎后的桑黄粉对黄酮、多酚、粗多糖的提取率分别比普通粉碎提高60.4%、73.4%、72.8%和53%、69.5%、68%,普通粉碎样品的功能性成分提取不完全。

This study compared the effect of ordinary grinding, twin-screw extrusion puffing and fluidized bed opposed jet mill（FBOJM） on the particle size and morphology of powdered fruit bodies of Phellinus linteus and on the extraction of its functional components. In comparison with grinding in an ordinary mill, twin-screw extrusion puffing and FBOJM allowed more complete cell disruption, producing powders with a mean particle size（D50） of 7.44 μm and 5.53 μm, respectively, which showed increases of 60.4%, 73.4% and 72.8% as well as 53%, 69.5% and 68% in the extraction yields of flavonoids, polyphenols and crude polysaccharide compared with those of the ordinary powder, respectively. The functional ingredients could not be completely from the ordinary powder.