Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Three-dimensional (3D) surface response and two-dimensional (2D) contour plots, respectively, from the model predicted TFC (in mg/g DW) extracted from mature N. lotus stamens as a function of aqEtOH concentration and US frequency. (a,b), aqEtOH concentration and extraction duration (c,d) and US frequency and extraction duration (e,f).
