Response surface plots showing the effects of (a) alcohol content (X1) and carrier mass (X2); (b) alcohol content (X1) and inlet air temperature (X3); (c) alcohol content (X1) and flow rate (X4); (d) carrier mass (X2) and inlet air temperature (X3); (e) carrier mass (X2) and flow rate (X4); (f) inlet air temperature (X3) and flow rate (X4) on moisture content (Y2).

 
 
  Part of: Nguyen TTL, Minh TL, Do DQ, Nguyen N-VT (2022) Optimization of alcohol extraction and spray-drying conditions for efficient processing and quality evaluation of instant tea powder from lotus and green tea leaves. Pharmacia 69(3): 621-630. https://doi.org/10.3897/pharmacia.69.e84650