Table 1. Frankfurters formulations with different pork head meat levels (units: g/100 g).

Ingredients	Treatments
	Control	T1	T2	T3	T4
Pork ham	50	45	40	35	30
Pork head	-	5	10	15	20
Back fat	25	25	25	25	25
Ice	25	25	25	25	25
Total	100	100	100	100	100
Salt (NaCl)	1.5	1.5	1.5	1.5	1.5
Sodium Tripolyphosphate	0.15	0.15	0.15	0.15	0.15
Sodium nitrite	0.01	0.01	0.01	0.01	0.01
Sorbitol	0.5	0.5	0.5	0.5	0.5