Raspberry Extract as Both a Stabilizer and a Reducing Agent in Environmentally Friendly Process of Receiving Colloidal Silver

Table 8

Experimental effects.

	Effect	Standard error	𝑡(24)	𝑃
Constant	−19.1481	1.2889	−14.8557	0.0000
Polyphenol weight [mg/cm^3] (L)	7.0444	3.1573	2.2312	0.0353
pH (L)	−7.6444	3.1573	−2.4212	0.0234

L: linear component of Q: square component.