ericrice wrote:...I understand that different sugars have different purposes and can alter the end result...
and depending on how many answers that are going to tick in from now on you may soon be facing a bunch of answers that goes in different directions.
I guess that most of you will agree with me, that the "main scool" say: Stick to
dextrose because that is the one fermentable sugar that most strains are likely to be able to ferment with no hesitation or delay. However you will also often hear the oppinion that a mix of dextrose, glucose and cristaline sugar in various combinations will add flavour nuances that you won´t obtain with dextrose alone. I hope other members will join in on this with their experiences, as I have seldom detracted from the
dextrose-only practice myself.
From the scientific sources that I can draw from in my back yard

there should not be any
significant difference in the organoleptic qualities of the acid produced just because the source of nutricion is changed, but that does not exclude the likeliness that some different enzymatic reactions in the meat may be dependent on the kind of sugars present.
The real difference in "acid taste quality" is far more linked to the type of bacteria in question, as different strains may change characteristics depending on the physical circumstances which they are exposed to and which (in the worst case) may cause them to turn out some unwanted bi-products during fermentation.
It is also a question of the dextrose equivalent of the sugar in question, meaning that a mere gram per gram swop from one kind of sugar to another may not provide nutrition enough for the bacteria (or vice versa). Most notably in the case of maltoextrin where the dextrose equivalent may be as low as one fifteenth of dextrose (however this is individual from one maltodextrin to another, so CHECK IT OUT before you buy it and use it!).
Namely maltodextrin (which -if I remember Chuck right - is also known in the US as "Corn solids"

) is said to provide a longer lasting nutrition -so that is one type of sugar that should be beneficial for long time curing in combination with dextrose. But it remains for me to test sometime, if maltodextrin alone, in a dosage high enough to match the dextrose equivalent, would be able to trigger the fermentation process just fast as dextrose does, or if it would just drag out the lag phase
ad infinitum.
If anybody have experiences in this field -please join in now!
And one important fact: No culture can be "speeded up" just by raising the amount of sugar. All you gain is a lower pH and more tanginess.
Just as I don´t know of any "faster" sugar than dextrose. However, you may also risk to drag the lag phase in lenghts by adding too little sugar. But then again, one has to consider which particular strains are in question and if you are dealing with a slow or a fast starter culture. A. e.: for an aggresive
Lactobacillus curvatus in a fast starter culture, even as little as 0,3% dextrose may be enough to provide a notable acid profile to the taste. Especially if the
curvatus made pH drop so fast that there was no time for the staphylococci to build up some tasty meat aroma to round off the tanginess.
There is only one way to speed up starter cultures and that is by raising the fermentation temperature...