Full
Outline
The enzymolysis rates of cellulase on dietary fiber under dynamic instantaneous high pressure (IHP) were studied. Utilizing the Microfluidizer machinery as the carrier of Instantaneous High Pressure treatment to deal with dietary fiber from bean dregs, we got dietary fiber of different granularities and densities under different pressures and different times under the same pressure. The corresponding enzymolysis rates of cellulase on dietary fiber were different. The hydrolysates of cellulase on dietary fiber were of some reducing sugars, such as cellobiose and glucose. The enzymolysis rates could be estimated by measuring the contents of the reducing sugars in the dietary fiber of different granularities and densities. The results indicated that with the increase of the pressure in the range of 40~90 MPa, the granularities of the materials reduced drastically, the densities of the materials and the enzymolysis rates increased. And the granularity of the materials was in minimum of 202.4 nm; when the pressure went on increasing, the granularities of the materials tended to increase because of the occurrence of expanding in the system, but the densities started to decrease and the enzymolysis rates kept increasing. The density of the materials was in minimum of 1.027 g/mL, the contents of the reducing sugars after enzyme hydrolysis was maximal at this time. When the pressure was higher than 140 MPa, the granularities and density of the materials increased, the enzymolysis rates decreased. It could be due to the reuniting of particles in the system. When the materials were treated separately with instantaneous high pressure between 90 MPa and 140 MPa for several times, the granularities of the materials increased with the increase of dealing times, the density decreased first and then increased, and the enzymolysis rates decreased.
29
6
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
关闭全屏
No. 86 Xueyuan South Road, Haidian District, Beijing
010-62662699(Operation and Technical Support)
qkjq@cast.org.cn
Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House
