Nutritional composition of Garcinia prainiana fruit

Abstract

The proximate composition, selected water - soluble vitamins, minerals, and dietary fiber contents of Garcinia prainiana fruit were investigated in order to promote the wider use of this fruit. The Garcinia prainiana fruit contained the highest amount of moisture (86.67 %), followed by carbohydrate (6.74 %), crude fiber (3.00 %), and crude protein (2.58 %), but the lowest amount of ash and crude fat(< 0.60 %), which were carried out based on AOAC standard methods. Besides, thiamine and riboflavin of Garcinia prainiana fruit were analyzed by spectrofluorometer, and were recorded to be 4.72, and 3.29 mg/ 100 g respectively, whereas the nicotinamide, pantothenic acid, and pyridoxine were determined by high performance liquid chromatography, and was determined to be 0.44, 0.32, and 2.98 mg/ 100 g, respectively. The Garcinia prainiana fruit pulp was orange in colour and had considerably high ascorbic acid content (11.04 mg / I 00 g), which was analyzed by 2, 6 - dichloroindophenol titrimetric method. However, the Garcinia prainiana fruit recorded had fairly low amount in selected minerals after carried out by atomic absorption spectrophotometer. Potassium (18.28 mg / 100 g) was observed to be the most abundant mineral in Garciniaprainiana fruit, followed by magnesium (4.16 mg I 100 g), calcium (2.18 mg / 100 g), and manganese (2.05 mg/ 100 g), but fairly low amounts in sodium, copper, zinc, and iron ( < 1.00 mg / 100g). In addition, the total dietary fiber content of Garcinia prainiana fruit was analyzed to be 3.02 %, whereas the insoluble and soluble dietary fiber constituted 64.24 %, and 35% of total dietary fiber, which were determined by enzymatic - gravimetric method. In conclusion, the Garcinia prainiana fruit had considerable amount of proximate composition, and fairly rich in water - soluble vitamins, especially the vitamin B complex, but it was found to be relatively poor in minerals and dietary fiber contents.