Research Article

Optimization of Ultrasound Extraction of Cactus Pear (Opuntia ficus indica) Seed Oil Based on Antioxidant Activity and Evaluation of Its Antimicrobial Activity

Figure 5

Scanning electron micrographs of green cactus pear seed powder before (a) and after (b) ultrasound treatment (i) 1,000x, (ii) 500x. A. The black circle shows a starch granule.
(a)
(b)