Chemical Analysis And Sensory Evaluation Of Juice Produced From Star Fruit (Cavarnbora Averrhoa)

ABSTRACT

The main aim of this study was to produce and assess the macro and micro nutrients, anti nutrients and sensory attributes of fruit juice made from star fruit (Averrhoa Carambola) and a sample product called happy hour which is an extract from peach (control). The fruit juice were prepared in three different samples with various proportions of sample 101(100% Star fruit), sample 102(100% star fruit with sugar syrup) and sample 103(I00%peach fruit). The juices were subjected to chemical analysis (proximate, vitamins, minerals and anti-nutrients) and sensory evaluation using standard methods. The juice samples had proximate composition range of its components: moisture content has a range from 91.30-94.86(g/loog), Dry matter has a range of 5.10- 8.70(g/lOOg),crude protein has a range from 0.46-0.72(g/100g), fat has a range from 0.01-0.46(g/l0Og), crude fibre has a range from 0.01-0.47(glloog), Ash has a range from 0.43-0.67(g/lOOg), carbohydrate has a range from 3.97-6.66(g/loog),Energy has a range from 17.77- 32.29(g/lOog). The vitamins were analyzed and it's ranges include, pro vitamin A 140.86- 145.23 (rng/100g), vitamin C: 28.19-37.31(mglloog). The mineral content of the juice samples analyzed were calcium 4.23-65. 80(mg/l0Og), phosphorus 10.38-1 8.18(mg/ lOOg), iron 0.01-0.44(mg/loog), zinc ranged from 0.32-0.40(mgllOog), and finally from the mineral composition, sodium ranged from 3.12-130.72(mg/loog). Then the anti nutritional composition of the juice samples were oxalate ranging from 0.06-1.25(g/1 0Og), Tanin 0.01- 0.12(mg/lOog), Flavonoid 0.18-1.40(g/loog), then for alkaloid, it's all in 0.00(g/lOOg).thc sensory evaluation results showed that the 100%star fruit juice was generally acceptable as it was neither liked nor disliked by the panelists but the 100%star fruit with sugar syrup was in the other hand better preferred and compared favorably with the control sample (peach extract juice). This study concluded that juice produced from star fruit (Averrhoa Carainbola) could serve as good alternative pro vitamin A and vitamin C based fruit juice for fighting against diseases and for vitamin C deficient patients and individuals too.