Jenkins, the SEC's leading scorer, missed Thursday's win over Louisiana State with a sore left foot. He showed no sign of the injury against the Bulldogs.
Jenkins scored 22 points in the second half, including a three-point play and rare four-point play in the final 2:03.
Renardo Sidney had 22 points and Ravern Johnson had 18 for Mississippi State (17-14). Dee Bost had 16.