Grape Preservation Using Chitosan Combined with β-Cyclodextrin

Table 1

Adding reagents for SOD activity assay.

Reagent (mL)	Tube no.
	1	2	3	4
50 mmol/L phosphoric acid solution	1.5	1.5	1.5	1.5
130 mmol/L methionine	0.4	0.4	0.4	0.4
750 μmol/L NBT solution	0.4	0.4	0.4	0.4
100 μmol/L EDTA-Na2 solution	0.4	0.4	0.4	0.4
200 μmol/L lactoflavin	0.4	0.4	0.4	0.4
Crude enzyme extracting	0.1	0.1	0	0
Distilled water	0.5	0.5	0.6	0.6