Help needed for writing up a balance chemical equation for an acid/base titration:

for an extended experimental experiment we tested the total acid content of orange juice, then had to write the balanced chemical equation for the experiment to do further calculations but i am unsure of how to write it so can anyone please help...
(the base used in the titration was sodium hydroxide solution)
Because it is the total acid content, how should i express this as in the equation?

would it be something like:

H30+ + OH- --->H20

or

H+ + OH- --->H20

or

H30+NaOH---->something..i'm really not sure?

Thanks