How to concatenate strings in a loop?

How to concatenate strings in a loop? For example I have this character array

fruits = char('apple','pear')

I would like to see this output

  apple tart
  pear tart

But when I use this loop:

for f = fruits'
  strcat(f," tart")
end

The output is

ans =

a tart
p tart
p tart
l tart
e tart

ans =

p tart
e tart
a tart
r tart
 tart 

In fact I need this to read a bunch of csv files in a directory. Part of the file name is a variable over which I want to loop over. For example my directory contains the 2 following files from which I want to read data:

peartart.csv
appletart.csv

This other answer using a list of files is nice but then I have no control over the fruit variable name in the file. I wand control over this variable because I will perform a statistical test for each fruit data and store the test result with the fruit name in another file.