In order to optimize the granulation process of mulberry leaf extract tableting candy, single factor experiments were used to estimate the effects of spray gun pressure, granulation knife speed and rotating speed of the peristaltic pump on powder fluidity index and average particle size. And based on this, the spray gun pressure, granulation knife speed and rotating speed of the peristaltic pump were selected as the investigation factors, and powder fluidity index and average particle size were used as the response value. The central combination design of Box-Benhnken was designed using Design Expert 8.0 software including three-factor and three-level response surface experiments. Through the establishment of response surface regression model and statistical analysis of the experimental results, it was proved that the spray gun pressure, granulation knife speed and rotating speed of the peristaltic pump had a significant influence on the powder fluidity index and the average particle size. The optimized powder granulation process was as follows: the pressure of spray gun was 0.5 MPa, the speed of granulating knife was 2 600 r/min, and the speed of peristaltic pump was 2.6 r/min. Under these conditions, the powder fluidity index and average particle size were 77.8 μm and 127.11 μm, respectively, and the powder had good fluidity.
FAN Pengshuai
,
YANG Zongling
,
WANG Jun
,
MA Xishan
,
LIU Yifeng
,
WU Yimin
,
ZHOU Zhiqiao
,
CAO Xudong
,
XIA Kai
. Optimization of the granulation process of mulberry leaf extract tableting candy powder[J]. Food and Fermentation Industries, 2022
, 48(9)
: 179
-185
.
DOI: 10.13995/j.cnki.11-1802/ts.029377
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