Optimization of Insoluble and Soluble Fibres Extraction from Agave americana L. Using Response Surface Methodology

Table 1

Experimental domain for screening step.

	Factor	Unit	Low level	High level
𝑈1	P/W ratio	g powder/mL water	0.0333	0.1
𝑈2	Temperature	°C	60	80
𝑈3	pH	—	4	9
𝑈4	Time	hour	0.5	2
𝑈5	Agitation speed	rpm	200	400
𝑈6	Ionic strength	g NaCl/l medium	1	2
𝑈7	M/E ratio	l/l	0.25	0.5
𝑈8	Precipitation temperature	°C	5	35