[Retracted] The Application of Ozone Micro-nano Bubble Treatment Vegetable Fresh-Keeping Technology in Air Logistics Transportation

Table 2

Experimental data table of vegetable preservation based on vacuum precooling preservation technology.

	Day 1	Day 4	Day 5	Day 7	Day 9	Day 11	Day 13
Water loss rate	0%	7%	12%	19%	30%	36%	42%
Ascorbic acid content	13	9	7	6.5	5	4.6	3.7
Chlorophyll content	90%	86%	80%	75%	69%	60%	59%