Nutritional Comparison of Processed and Unprocessed Citrillus lanatus (Watermelon) Seeds for Possible Use in Feed Formulation

M. A. Milala, A. Luther, B. Burah
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引用次数: 5

Abstract

Citrullus lanatus (watermelon) seeds are often discarded, while its fruits are eaten. In this study, effects of processing either by roasting or drying of the seeds was assayed by analyzing proximate, mineral and vitamin A contents for possible boasting of animal feeds. The proximate analysis and vitamin A determination were performed using standard methods. Mineral elements content was determined by Atomic Absorptions Spectrophotometry (AAS). The results of the proximate composition of processed and unprocessed watermelon seeds had moisture content of 6.29% and 5.06%, ash content 2.59% and 2.98%, crude fat 47% and 32.9%, crude protein 68.04% and 49.7%, crude fibre 1.13% and 2.10% and carbohydrate 24.99% and 6.06% respectively. The elemental composition of both processed and unprocessed seeds showed that magnesium and sulphur contents were higher in unprocessed than processed seeds, while potassium, calcium, phosphorus, iron, copper, zinc and manganese contents of both processed and unprocessed seed were statistically similar. The crude fats, proteins and carbohydrates contents of the processed seeds were significantly higher (p<0.001) compared with the unprocessed seeds. The vitamin A content of both processed and unprocessed seeds were found to be 0.033 µg/g and 0.056 µg/g respectively. However, vitamin A content of the unprocessed seeds was higher when compared with the processed seed. Therefore, the result of this study recommends that both processed and unprocessed Citrullus lanatus seeds may serve as suitable candidates in feed formulation.
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加工和未加工西瓜种子在饲料配方中的营养价值比较
西瓜的种子经常被丢弃,而它的果实被吃掉。在这项研究中,通过分析种子的近因、矿物质和维生素A含量,分析了烘烤或干燥对动物饲料的影响。采用标准方法进行近似分析和维生素A的测定。采用原子吸收分光光度法(AAS)测定矿物元素含量。结果表明,加工后和未加工后的西瓜种子含水量分别为6.29%和5.06%,灰分分别为2.59%和2.98%,粗脂肪分别为47%和32.9%,粗蛋白质分别为68.04%和49.7%,粗纤维分别为1.13%和2.10%,碳水化合物分别为24.99%和6.06%。加工和未加工种子的元素组成表明,未加工种子的镁和硫含量高于加工种子,而加工和未加工种子的钾、钙、磷、铁、铜、锌和锰含量在统计学上相似。粗脂肪、蛋白质和碳水化合物含量显著高于未加工种子(p<0.001)。加工和未加工种子的维生素A含量分别为0.033µg/g和0.056µg/g。然而,未加工种子的维生素A含量高于加工种子。因此,本研究结果表明,加工和未加工的瓜籽都可以作为饲料配方的合适候选人。
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