. 2020 Aug 11;11:1827. doi: 10.3389/fmicb.2020.01827

TABLE 5.

ACC and ANCC of the food product at D₀, D_{end of the shelf life}, and D_{end of the shelf life +7 days} for different cleaning treatments.

Cleaning treatment			ACC									ANCC									Group	Mann–Whitney Test − Conventional cleaning (Group A.) Enzymatic cleaning (Group B)
																							ACC			ANCC
				D₀			D_{end of the shelf life}			D_{end of the shelf life + 7 days}			D₀			D_{end of the shelf life}			D_{end of the shelf life + 7 days}			D₀	D_{end of the shelf life}	D_{end of the shelf life + 7 days}	D₀	D_{end of the shelf life}	D_{end of the shelf life + 7 days}

		n	P50	P90	Pmax	P50	P90	Pmax	P50	P90	Pmax	P50	P90	Pmax	P50	P90	Pmax	P50	P90	Pmax
Conventional cleaning		39	1,8	4,1	4,6	7,4	7,9	8,0	8,0	8,6	8,7	1,3	4,16	4,68	7,76	8,53	8,62	7,99	8,46	9,41	A	p = 0.011	p = 0.029	p = 0.027	p = 0.010	NS	p = 0.04
Enzymatic cleaning	Reinforced enzymatic cleaning (OPC + CIP)	12	1,7	2,2	2,3	8,4	9,1	9,2	7,8	8,1	8,2	<Dl	2,4	2,56	8,62	9,11	9,18	7,93	8,07	8,11	B
	Routine enzymatic cleaning 3x/wk	13	1,4	1,7	1,7	6,6	7,9	8,0	7,1	8,8	8,9	1,48	1,48	1,48	6,66	7,79	8	7,36	8,78	8,89	B
	Routine enzymatic cleaning 2x/wk	12	1,5	2,7	2,8	7,0	7,8	7,9	7,3	8,4	8,6	<Dl	2,65	2,81	7,79	8,16	8,2	7,35	8,08	8,2	B
	Routine enzymatic cleaning 1x/wk	7	0,7	1,8	2,0	7,0	7,1	7,1	7,3	7,6	7,6	1	2,24	2,33	7,04	7,15	7,18	7,37	7,62	7,66	B
Conventional cleaning 2		12	2,3	4,2	4,4	6,8	7,8	7,9	7,7	9,3	9,5	2,23	4,48	4,63	5,59	7,43	7,58	7,81	8,41	8,53	A
Enzymatic cleaning	Reinforced enzymatic cleaning 2 (OPC)	9	1,6	1,9	1,9	5,5	6,0	6,1	5,3	6,0	6,1	2,2	2,82	2,9	5,51	9,16	9,26	4,26	8,54	8,63	B

NS, not significant; ACC, aerobic colony counts; ANCC, anaerobic colony counts; D₀, food product analyzed at the beginning of the shelf life; D_{end of the shelf life}, food product analyzed at the end of the shelf life; D_{end of the shelf + 7 days}, food product analyzed 7 days after the end of the shelf life; Dl, detection limit; P50, percentile 50; P90, percentile 90; Pmax, percentile 100.