公开(公告)号：US20240035056A1

公开(公告)日：2024-02-01

申请号：US18274770

申请日：2021-05-06

申请人： NANJING FORESTRY UNIVERSITY

发明人： Caoxing HUANG ,  Qiang YONG ,  Yuheng TAO ,  Chenhuan LAI ,  Yong XU ,  Xin LI

IPC分类号： C12P19/04 ,  C12N9/40 ,  C12N9/24

CPC分类号： C12P19/04 ,  C12N9/2465 ,  C12Y302/01022 ,  C12N9/2491 ,  C12Y302/01025

摘要： A method and special complex enzyme for hydrolyzing a galactomannan (GM) to prepare a small-molecule GM and a galactomannan oligosaccharide (GMOS) is provided. The method includes: conducting fermentation with microcrystalline cellulose (MCC) and melibiose as carbon sources and Trichoderma reesei (T. reesei) as an enzyme-producing strain to obtain a supernatant, which is a complex enzyme solution with enzymatic activities of β-mannanase and α-galactosidase; and directly using the complex enzyme solution for enzymatic hydrolysis of a GM as a substrate to prepare the small-molecule GM and the GMOS.

公开(公告)号：US20240237765A1

公开(公告)日：2024-07-18

申请号：US18561291

申请日：2021-06-01

申请人： NANJING FORESTRY UNIVERSITY

发明人： Chao DENG ,  Farzad SEIDI ,  Qiang YONG ,  Xiangyu JIN ,  Chengcheng LI ,  Haiying WEI

IPC分类号： A41D13/11 ,  B32B5/02 ,  B32B5/26 ,  B32B7/02 ,  D04H1/26 ,  D04H1/425 ,  D04H1/4291 ,  D04H1/4374 ,  D04H1/4382 ,  D04H1/492 ,  D04H3/16 ,  D06M13/328 ,  D06M13/355 ,  D06M13/395 ,  D06M16/00 ,  D06M101/30

CPC分类号： A41D13/1192 ,  B32B5/022 ,  B32B5/269 ,  B32B5/271 ,  B32B7/02 ,  D04H1/26 ,  D04H1/425 ,  D04H1/4291 ,  D04H1/4374 ,  D04H1/43835 ,  D04H1/43838 ,  D04H1/492 ,  D04H3/16 ,  D06M13/328 ,  D06M13/355 ,  D06M13/395 ,  D06M16/00 ,  A41D2500/30 ,  B32B2250/03 ,  B32B2250/20 ,  B32B2262/0253 ,  B32B2262/04 ,  B32B2262/062 ,  B32B2262/067 ,  B32B2262/144 ,  B32B2262/16 ,  B32B2307/7163 ,  B32B2307/718 ,  B32B2571/00 ,  D06M2101/30 ,  D10B2321/022 ,  D10B2401/13 ,  D10B2509/00

摘要： An antibacterial and antiviral degradable mask and a manufacturing method thereof are provided. From outside to inside, the mask sequentially comprises a surface layer (1), a core layer (2), and an inner layer (3) that contacts the face; the surface layer (1) is made of an antibacterial and antiviral cellulose spunlace non-woven fabric; the core layer (2) is made of a polypropylene melt-blown non-woven fabric; the inner layer (3) is made of a polypropylene spunbond non-woven fabric or a degradable natural cotton fabric. The mask can have both antibacterial and antiviral functions; moreover, the material is degradable, and thus, environmental pollution pressure caused by non-degradable petroleum-based fiber materials such as polypropylene can be effectively relieved.