Effects of Aeration Treatment on γ-Aminobutyric Acid Accumulation in Germinated Tartary Buckwheat (Fagopyrum tataricum)

Table 1

Factors and levels of response surface methodology design.

Variable factors	Symbol	Code levels
		−1	0	+1
Air flow rate (L/min)		0.5	1.0	1.5
Temperature (°C)		25	30	35
pH		3.0	4.5	6.0