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Comparative Analysis of the Phytochemical Properties and Total Sugar Content of Three Local Varieties of Ripe Carica papaya L. Fruit

Rachelle Mae Cabigan

Carica papaya L. is a perennial plant cultivated mostly in tropical and subtropical lands including the Philippines, India, South America, Sri Lanka, and East Africa. Of all its parts, it is usually the fruit that is utilized for human consumption. Carica papaya L. comes in different varieties, including the Solo, Sinta, and Red Lady papayas. This study aimed to analyze and compare the total phenolic and flavonoid content, antioxidant capacity, and alkaloid presence of these three varieties in contrast to their total sugar content. Tests such as the Folin-Ciocalteu method, analysis of total flavonoid content, DPPH-scavenging activity assay and the Anthrone method were done. Descriptive statistics such as Levene statistics, means, standard deviations, ANOVA, and Tukey’s test were used for data analysis. Total phenolic and flavonoid content was superior for Red Lady papaya, while the differences found among the mean antioxidant capacities of the all tested varieties were not significant. The preliminary alkaloid screening came out positive for all varieties. Solo papaya was found to have the highest total sugar content among the three. The mean phenolic and flavonoid concentration of Red Lady was found to be significantly different from the mean concentrations of the other two variants (p<0.05).