Preheat oven to 350 degrees F.
Wash but don't peel a medium to large zucchini. Shred in a food processor or grate by hand over a bowl. Set aside.
Add all the dry ingredients to a medium-sized mixing bowl. Whisk together.
In a small bowl, add all the wet ingredients--apple juice concentrate, applesauce, maple extract, and maple syrup. Mix together.
Add the wet ingredients to the dry ingredient bowl. Add the walnuts and raisins.
Add the zucchini to the bowl and mix well.
Pour the batter into a non-stick baking pan (or line a regular baking pan with parchment paper). No oil needed this way which lowers the calorie count.
Place in the pre-heated oven and bake for 40-50 minutes. Test for doneness at 40 minutes with the toothpick test (see tips above). If the toothpick does NOT come out clean, bake for another 5-10 minutes.
Remove from oven and allow it to cool on a baking rack. Summer Favorite Zucchini Bread is delicious when served warm or chilled in the refrigerator.