The Nutritional Value of Sweet Potato Tubers [Ipomoea batatas (L.) Lamb.] Consumed by Infants and Children of Dani Tribe in Kurulu District, Baliem-Jayawijaya

Abstract

Sweet potato is an important staple food crop especially for the local people of Central Highlands Jayawijaya. There are many accessions that have always been maintained their existence to enrich the types of consumption. Traditionally, sweet potato accessions were grouped based on the utilization, such as for animal feed, cultural ceremonies, consumption for adults, as well as for children and infants. This study was aimed to analyze the nutritional value of sweet potatoes consumed by infants and children of the Dani tribe. Chemical analyses were conducted at the Laboratory of Post-Harvest Research and Development Center, Cimanggu, Bogor.The results showed that each of 4 (four) sweet potato accessions, which were consumed by infants and children, had diverse nutrient levels. Accession Sabe showed the highest water content (72.56%), vitamin C (72.71 mg/100 g), Fe (11.85 mg/100 g), and K levels (130.41 mg/100 grams). The highest protein content (1.44%), fat (1.00%), energy (154.43 kkal/100 gram), carbohydrate (35.47%), starch (30.26%), reducing sugar (3.44%), riboflavin (0.18 mg/100 g), and vitamin A (574.40 grams IU/100) were produced by accession Manis. On the other hand, accession Saborok produced the highest content of ash (1.32%), vitamin E (28.30 mg/100 g), and β-carotene (64.69 ppm). The highest level of crude fiber (1.81%) and thiamin (0.36 mg/100 g) were produced by accession Yuaiken.

Evaluation of nutrient content in red kidney beans, amaranth leaves, sweet potato roots and carrots cultivated in Rwanda

“…The sweet potato roots analysed in the present study contained 1.68% of fat, which is in agreement with 1.62% reported previously [14]. In general, sweet potato roots are low in fat [7]. The fat content of amaranth leaves analysed in the present study revealed 7.89%.…”

“…All these results revealed that red kidney beans grown in Rwanda are rich in protein and the traditional processing methods did not affect the protein content. Sweet potato roots are poor in protein and they contained 6.66% in the present study [7]. A similar study reported that protein content in sweet potato roots was in the range of 1.73-9.14% on a dry weight basis and of good quality [21], which confirms the present results.…”

“…A lower value of 1.79% was previously reported on carrot powder [24]. Fats serve as energy reserves, as a source of essential fatty acids and as a solvent of vitamins [7]. This indicates that if carotenes have to be absorbed by the body, it should be accompanied by fat that can be added during processing for consumption.…”

“…The actual per capita consumption varies between 90 -100 kg and 100 -300 kg in Uganda and Rwanda, respectively [6]. Sweet potatoes have high nutritional value, and they are a source of carbohydrates, protein, vitamins, and minerals [7].…”

Chicken Manure: An Alternative in Increasing Production of Sweet Potato (Ipomoea batatas)

“…Its rusticity guarantees resistance to drought, little demand on nutrients and advantageous competition with weeds, for quickly covering the soil. In addition, to use in human food, sweet potatoes can be used in animal feed and ethanol production (Corrêa et al, 2016;Silva, Almeida, Alvim-Ferraz, & Dias, 2018;Suparno, Prabawardani, & Pattikawa, 2016;Vizzotto, Pereira, Castro, Raphaelli, & Krolow, 2017).…”