Effect of Fungal Infection on Nutrient Composition of Apple From the analyses of the effect of isolated pathogens on the nutritional content of the apple fruit (Table 1), it was observed that for all the pathogens, there was an increase in the percentage moisture content - ranging from 82.46-84.48% as compared to the control which is 73.22% - For the percentage ash, fibre, protein, Vitamin C, fat and sugar contents, there was a reduction in the contents in the diseased samples when compared to the control