Don Giorgio,
I know that this is a very old thread but your loquat jam looked just yummy. If I made it I think that I would add a bit of lemon or lime juice to the recipe to give an acid compliment to the sweetness.
I used some loquats to make a cobbler once. The recipe was a typical, basic, cobbler recipe but I added a sprinkling of lime juice to the loquat filling and a small scattering of flour as a thickener. The resulting cobbler was wonderful and tasted almost as if it had been made with apricots.
The filling for the cobbler –apart from the lime juice and sprinkling of flour– was essentially the same as your jam recipe. I was surprised when the flavor smacked so nicely of apricots.
Cheers!
Paul M.
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