Mycosystema

Quality improvement and processing characteristics of twin-screw extruded Stropharia rugosoannulata powder

BAN Xinrong, YANG Yan, LI Wen, WU Di, ZHANG Zhong, LI Jingjun, CHEN Wanchao

Mycosystema, 2024, 43(5): 240005. DOI: 10.13346/j.mycosystema.240005

试验号 No.	A 挤压温度 A Extrusion temperature (℃)	B 原料加水量 B Raw water supply (%)	C 螺杆转速 C Screw speed (Hz)	Y SDF含量 Y SDF content (g/100 g)
1	80	40	15	9.97
2	100	30	15	11.19
3	100	30	15	11.29
4	120	40	15	9.65
5	100	30	15	11.09
6	100	30	15	11.13
7	100	20	10	10.76
8	120	20	15	10.56
9	80	20	15	10.61
10	100	40	20	10.13
11	120	30	10	10.06
12	80	30	20	10.70
13	120	30	20	10.09
14	100	20	20	10.25
15	100	40	10	9.65
16	100	30	15	11.21
17	80	30	10	10.72

Table 2 Experimental design and results of response surface

Other figure/table from this article

Table 1 Factor level of response surface design
Fig. 1 Effects of extrusion parameters on soluble dietary fiber (SDF) content of Stropharia rugosoannulata powder. A: Extrusion temperature. B: Raw water supply. C: Screw speed. Different lowercase letters indicate significant differences (P<0.05).
Table 3 The results of variance analysis and significance test of regression model
Fig. 2 The surface and contour plots of interaction on SDF content.
Table 4 Chromaticity changes of Stropharia rugosoannulata powder before and after extrusion
Fig. 3 SEM images of Stropharia rugosoannulata powder without extrusion (A: 500×; B: 1 000×; C: 2 000×) and after extrusion (D: 500×; E: 1 000×; F: 2 000×).
Fig. 4 Particle size distribution of Stropharia rugosoannulata powder before and after extrusion.
Fig. 5 FTIR spectra of Stropharia rugosoannulata powder before and after extrusion.
Fig. 6 Effects of extrusion on water and oil retention capacity of Stropharia rugosoannulata powder.
Fig. 7 Effects of extrusion on the adsorption capacity of Stropharia rugosoannulata powder. A: Cholesterol adsorption capacity. B: Nitrite adsorption capacity.
Fig. 8 Effects of extrusion on digestion and utilization of Stropharia rugosoannulata powder.