Table 1.

Stability of NADH-cyt c and succinate-cyt c activities (Abs/min/μL).

	NADH-cyt c	Succinate-cyt c
Day 0-Polytron	0.011 (100%)	0.004 (100%)
Day 0-N2 Cavitation	0.050 (100%)	0.010 (100%)
Day 3–4 °C-Polytron	0.006 (57%)	0.003 (63%)
Day 3–4 °C-N2 Cavitation	0.008 (16%)	0.007 (69%)
Day 3–80 °C-Polytron	0.011 (100%)	0.026 (65%)
Day 3–80 °C-N2 Cavitation	0.037 (74%)	0.009 (87%)

Data from E. tenella mitochondria prepared by two different methods (Polytron or N₂ cavitation), at day 0 and day 3 stored at 4 °C or −80 °C. The number in parenthesis represents the percentage activity relative to day 0. NADH: nicotinamide adenine dinucleotide.