Preheat oven to 325 degreees F. Combine flour, sugar, poppy seeds, baking powder, baking soda and salt. Whisk together eggs, egg whites, orange zest and orange concentrate, and add to the dry ingredients. Mix well. Working on a floured surface, shape the dough into 2 logs, each about 36 cm long and 4 cm thick. Place the logs on a prepared baking sheet and bake for 20 to 25 minutes, or until firm to the touch. Transfer the logs to a rack to cool. Reduce the oven temp to 150ºC . Cut the logs diagonally into 1 cm thick slices. Stand the slices upright on the baking sheet and bake for 40 minutes more. Let cool completely before storing in an airtight container. 40 Calories per Biscotti / 1gm Protein, 1gm Fat, 8gm Carbohydrate, 32mg Sodium, 9mg Cholesterol From...Eating Well Magazine Nov/Dec '92 Submitted By SANDY GAMBLE <SCG@INDIRECT.COM> On FRI, 17 NOV 1995 129900ºC 0700 (MST)