FEvaluation of nutritional, physio-chemical and sensory properties of sapodilla (Manilkara zapota) pulp incorporated set yoghurt

The study was conducted to develop a value added set yoghurt, flavoured with acceptable combination of milk and ripened sapodilla fruit pulp. Sensory data showed that, the sample incorporated with 5% sapodilla pulp had the best qualities. Significantly lower (P less than 0.05) pH (4.0 – 4.2) was observed in sapodilla added samples compared to the control (4.7). Further, significantly higher (P less than 0.05) protein contents (5.58 - 5.73%) and total solids (29.34 - 29.64%) were observed in control and 5% sapodilla added yoghurts compared to 15% sapodilla added yoghurts. Escherichia coli was not detected and yeast and mould counts were accordance with the Sri Lanka Standards (824:1989) for a period of 15 days at refrigerated storage. In conclusion, yoghurt incorporated with 5% (w/w) sapodilla pulp has better organoleptic properties and nutritional value and can be stored under refrigerated conditions for 15 days without any quality deterioration while producing at lower cost.