Total acid content, total sugar content, and carotenoid content of the mango pulp samples were measured according to the methods described by Shi et al. (2013); Liao et al. (2019), and Zhang et al. (2019a), respectively. The total acid content of mango pulp samples was determined by following the Official Methods of Analysis for Vinegar in China (GB/T 5009.41-2003), while total sugars and total carotenoids of the pulp were determined using HPLC.
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