Double Bran Citrus Muffins

• 1 egg
• 1/2 oat bran
• 1/2 orange rind (grated)
• 1/2 lemon
• 240 ml buttermilk
• 190 gr all-purpose flour with wheat
• 75 gr dates
• 65 gr sugar
• 60 ml vegetable oil
• 8 gr sesame seeds