Physicochemical characteristics of sawo belanda (Pouteria Campechiana) flour with blanching process and drying techniques

Introduction: Sawo belanda fruit (Pouteria campechiana), a tropical fruit abundantly found in Southeast Asia, is highly productive and particularly thrives in the warm climates of Malaysia and Indonesia. However, the high fruit output of sawo belanda contrasts with its limited consumption in Indonesia. The process of converting sawo belanda into flour can significantly enhance its lifetime. The application of blanching methods and proper drying techniques can be a solution to avoid damage to the characteristics of the flour. This study aimed to determine the physicochemical characteristics of sawo belanda flour that has been treated with blanching and drying techniques. Methods: The parameters observed were moisture content (%), hygroscopicity (%), colour, antioxidant content (ppm), and carotenoid content (µg/g) with blanching and various drying techniques. Results: Microwave blanching and food dehydrator technique (C1) produced the best characteristics: moisture content of 7.82%, hygroscopicity of 8.04%, colour values of L* 84.0, a* 8.22, and b* 50.5, as well as functional characteristics including antioxidant content of 142 ppm and carotenoid content of 92.4 µg/g. Conclusion: Sawo belanda with C1 treatment had a significant impact on the water content, hygroscopicity, colour, antioxidant and total carotenoid contents of sawo belanda flour. The antioxidant content and incredibly high carotenoid content grant the sawo belanda flour an additional functional value when added to food ingredients.