Abstract
The current research is aimed to utilize mandarin peel in biscuits baking. Chemical composition showed that peel had high contents of ash, crude fiber; whereas low protein and carbohydrate content compared to wheat flour. Mandarin peel powder (MPP) was used in production of semi-sweet hard dough biscuits by replacing wheat flour by 3, 6 and 9 % to ensure the quality and acceptability of the biscuit. Baking increased the thickness of biscuit, whereas width and spread ratio of biscuits decreased with increasing levels of MPP. Biscuits were subjected for sensory evaluation. Biscuits formulated with 6 % MPP were comparable to control biscuits. The content of fiber, ash, ascorbic acid, carotenoids, polyphenol and antioxidant activity was found to be 0.85 %, 1.32 %, 1.5 mg / 100 g, 69 µg∙g-1, 2150 µg gallic acid equivalents (GAE) / g and 24.5 % respectively which were significantly higher than that of control biscuit.