Nutrient and phytochemical composition of flour made from selected cultivars of Aerial yam (Dioscorea bulbifera) in Nigeria

Olatoye, Kazeem Koledoye; Arueya, Gibson Lucky

doi:10.1016/j.jfca.2018.12.007

Cited by 28 publications

(10 citation statements)

References 12 publications

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“…Yam (Dioscorea spp.) has been identified as one of the most important food crops for a wide range of tropical countries including Nigeria, Ghana, Togo, Burkina Faso, Cote d'Ivoire, with over 600 species, in which only a few are cultivated for food purpose (Olatoye and Arueya, 2019). It has been described as a staple food for 60-100 million people in the world, also serves as a good source of carbohydrate (Amandikwa et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Drying characteristics of yam slices (Dioscorea rotundata) in a convective hot air dryer: application of ANFIS in the prediction of drying kinetics

Ojediran

Okonkwo

Adeyi

et al. 2020

Heliyon

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This study applied Adaptive Neuro-Fuzzy Inference System (ANFIS) to predict the moisture ratio (MR) during the drying process of yam slices (Dioscorea rotundata) in a hot air convective dryer. Also the effective diffusivity, activation energy, and rehydration ratio were calculated. The experiments were carried out at three (3) drying air temperatures (50, 60, and 70 C), air velocities (0.5, 1, and 1.5 m/s), and slice thickness (3, 6, and 9 mm), and the obtained experimental data were used to check the usefulness of ANFIS in the yam drying process. The result showed efficient applicability of ANFIS in predicting the MR at any time of the drying process with a correlation value (R 2 ) of 0.98226 and root mean square error value (RMSE) of 0.01702 for the testing stage. The effective diffusivity increased with an increase in air velocity, air temperature, and thickness and the values (6.382E -09 to 1.641E -07 m 2 /s). The activation energy increased with an increase in air velocity, but fluctuate within the air temperatures and thickness used (10.59-54.93 KJ/mol). Rehydration ratio was highest at air velocityÂair tem-peratureÂthickness (1.5 m/sÂ70 C Â 3 mm), and lowest at air velocity Â air temperatureÂthickness (0.5 m/ sÂ70 C Â 3 mm). The result showed that the drying kinetics of Dioscorea rotundata existed in the falling rate period. The drying time decreased with increased temperature, air velocity, and decreased slice thickness. These established results are applicable in process and equipment design, analysis and prediction of hot air convective drying of yam (Dioscorea rotundata) slices.

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Section: Introductionmentioning

confidence: 99%

Drying characteristics of yam slices (Dioscorea rotundata) in a convective hot air dryer: application of ANFIS in the prediction of drying kinetics

Ojediran

Okonkwo

Adeyi

et al. 2020

Heliyon

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“…These central metabolites which include vitamins, carbohydrates, proteins lipids, ash, fiber, moisture which are required for the growth and maintenance of cellular functions were found in the samples. They are important constituents of daily diet both for plants and animals and are involved in maintaining normal and essential physiological processes such as proper growth, development and reproduction (24,25). But deficiency of one constituent may lead to abnormalities in the body.…”

Section: Nutritional Contentsmentioning

confidence: 99%

Nutritional, phytochemical and cytotoxicity analyses of air potato Dioscorea bulbifera L.bulbils

Gutierrez

2021

Plant Sci. Today

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Air potato Dioscorea bulbifera L. is a crop that robustly grows and voluminously fruits but less utilized and adopted for consumption and cultivation. This investigation focused on the determination of the nutritional and phytochemical content and cytotoxicity of air potato D. Bulbifera L. bulbils from Nueva Vizcaya and Quirino. Analyses revealed that the bulbils contained moisture of 17.52-26.84%, ash of 0.737-7.28g/100g, lipids of 0.1593-0.2032g/100g, the crude fiber of 0.29-2.7942, the protein of 1.0 mg/ml, and total carbohydrates of 0.8189-0.8721g/100g sample. These primary metabolites are essential for plant growth, development, defense against diseases, and stress. These nutrients are vital for human nutrition and wellness as well. The presence of secondary metabolites such as anthraquinones, anthrones, coumarins, essential oils, fatty acids, flavonoids, phenols, steroids, triterpenes, and tannins were also revealed in the phytochemical screening. These secondary metabolites are distinct characteristics of plants which when properly extracted can be a source of materials for breakthroughs in food development, nutraceuticals, and pharmaceuticals. The bulbils were also found to be nontoxic. Thus, safe to be eaten. Geographical and environmental awareness, proper preparation and cooking management are must considerations to ensure its safety and economic value. With these capacities discovered, undeniably air potato is a cheap but rich source of material for food and medicine. These results are baseline data for bulbils found in the locality to be adopted to maximize the crop's produce for food processing, development, income generation, and cultivation.

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“…A study on fifteen different varieties of star fruit had shown a difference in oxalate content in each of the varieties with a 10-fold difference [28]. Meanwhile, recent findings from Olatoye and Arueya in 2019 also found fifteen varieties of air potato (Dioscorea bulbifera) with different oxalate contents [29]. Several studies have been carried out to investigate the oxalate content in different parts of taro such as corms, petioles and leaves [12,22,30].…”

Section: Insoluble Oxalate Contentmentioning

confidence: 99%

Determination of Oxalates in Corms of Selected Taro (Colocasia esculenta) Varieties in Malaysia Using Ultra High-Performance Liquid Chromatography

Amom

Razali

Umikalsum

et al. 2020

AJOCS

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Aims: To determine the oxalate contents in different varieties of taro (Colocasia esculenta) collected in Peninsular Malaysia. Study Design: Ultra High-Performance Liquid Chromatography (UHPLC) with UV detector (Diode Array Detection, (DAD)) was used to determine the total and soluble oxalate contents in different varieties of taro corms. Meanwhile, the insoluble oxalate content (calcium oxalate) was estimated from the subtraction of soluble oxalate content from total oxalate content. Place and Duration of Study: Malaysian Agriculture Research and Development Institute (MARDI Headquarters), Persiaran MARDI-UPM, 43400 Serdang, Selangor, Malaysia between December 2018 to December 2019. Methodology: 9 different varieties of taro were collected from different locations in Peninsular Malaysia. All the samples were analysed for their oxalate contents. Extractions were carried out to determine the total oxalate and soluble oxalate contents. All the samples were analysed using UHPLC. The generated data of oxalate contents were analysed using Analysis of Variance (ANOVA). Results: There is a significant difference (P <.05) between the oxalate content in the examined varieties with respect to the amount of total, soluble and insoluble oxalate contents. The putih variety has significantly the highest amount of total oxalate content with 218.8 ± 28.2 mg/100 g DW (dry weight) followed by the udang variety with 184.2 ± 24.7 mg/100 g DW and the wangi variety with 178.3 ± 5.1 mg/100 g DW. Tapak badak variety has the lowest total oxalate content with 70.5 ± 20.1 mg/100 g DW. Result showed that wangi variety has significantly the highest soluble oxalate content with 135.1 ± 4.8 mg/100 g DW followed by udang with 100.9 ± 49.8 mg/100 g DW. The lowest soluble oxalate content was found in tapak badak with 17.7 ± 2.9 mg/100 g DW. Conclusion: Despite many factors contributing to the difference in oxalate content between varieties, this study would help researchers or policy makers to suggest potential taros for commercial cultivation.

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Nutrient and phytochemical composition of flour made from selected cultivars of Aerial yam (Dioscorea bulbifera) in Nigeria

Cited by 28 publications

References 12 publications

Drying characteristics of yam slices (Dioscorea rotundata) in a convective hot air dryer: application of ANFIS in the prediction of drying kinetics

Drying characteristics of yam slices (Dioscorea rotundata) in a convective hot air dryer: application of ANFIS in the prediction of drying kinetics

Nutritional, phytochemical and cytotoxicity analyses of air potato Dioscorea bulbifera L.bulbils

Determination of Oxalates in Corms of Selected Taro (Colocasia esculenta) Varieties in Malaysia Using Ultra High-Performance Liquid Chromatography

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