by the chorizo kid » Sat Jul 30, 2011 10:28 am
regarding yogurt, i have never tried it. but, i do have to ask, considering how cheap yogurt is, why would commercial sausage makers go to the expense of using a starter cutlure? why would marianski use a starter culture? i am only suggesting that a cheap and easy-to-store pure bacterial starter is the acidophilus powder. but if yogurt works for you, then by all means go for it.
as for pure lactic acid, i can only speculate, but it seems that making your own lactic acid using a starter + dextrose might add more complex flavors, due to byproducts of the gradual and stepwise acid synthesis, which you would not get by adding a dollop of pure lactic acid. this is only a guess. again, if pure acid were an adequate substitute, then why would the commercial people not use it, since they care primarily about profit and secondarily about quality? time is certailny money, and adding the acid directly would save the fermentation time. only a guess, of course. i'm sure the experts know the answer.