Table 3. Particle properties of black radish powder produced by different conditions

Extraction method	Spray drying inlet temperature	Diameter (nm)	Zeta potential (mV)	PD index
L. plantarum fermentation	160°C	350.20±69.97b	–24.10±0.82b	0.266±0.047b
	170°C	340.10±59.89b	–24.10±0.94b	0.241±0.013b
	180°C	316.90±60.18b	–23.50±0.05ab	0.265±0.054b
Ethanol extraction	160°C	113.60±1.79c	–33.86±9.35c	0.239±0.001b
	170°C	118.50±4.30c	–35.28±3.36cd	0.250±0.022b
	180°C	107.75±2.28c	–39.43±1.70d	0.238±0.001b
L. plantarum fermentation and Freeze dried		633.90±26.80a	–17.75±1.21a	0.466±0.119a

Mean±SE within same column with different superscript letters differ significantly at p<0.05.