Fig. 7.
SEM image of pectin samples extracted under optimum conditions: 7 kV, 10000 magnification. a Lemon peel (UAE, 75 °C, 45 min, HNO3), b mandarin peel (UAE, 75 °C, 45 min, HCl), and c kiwi peel (MAE, 360 W, 3 min, HCl)
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.