A Review on Current Status and Future Prospects of Winged Bean (Psophocarpus tetragonolobus) in Tropical Agriculture

Lepcha, Patrush; Egan, Ashley N.; Doyle, Jeff J.; Sathyanarayana, N.

doi:10.1007/s11130-017-0627-0

Cited by 43 publications

(38 citation statements)

References 53 publications

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“…ese figures are higher than that reported by Singh et al [18], who recorded a crude fat content of 0.47% in the fully mature seeds. ey are however similar to those of previous studies that reported [15][16][17][18][19][20].4% [19] and those of other legumes such as chickpea (5.76-6.87%) as reported by Boye et al [20]. e result obtained for the tubers (Table 5) ranged from 0.21 (Tpt16) to 4.53 (Tpt33).…”

Section: Discussionsupporting

confidence: 91%

“…Considering that most of these ANFs are destroyed by boiling or autoclaving [34], properly processed winged bean can be safely used as a major plant protein source. Overall, the proximate and antinutritional assessments of winged bean seeds and tubers were similar to those of previous studies of the crop and other similar crops [12,19,21,[44][45][46][47].…”

Section: Discussionsupporting

confidence: 83%

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Nutrient and Antinutrient Composition of Winged Bean (Psophocarpus tetragonolobus (L.) DC.) Seeds and Tubers

Adegboyega

Abberton

AbdelGadir

et al. 2019

Journal of Food Quality

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Many people in sub-Saharan Africa suffer from protein malnutrition; this results in negative health and economic impacts. Winged bean (Psophocarpus tetragonolobus (L.) DC.) is a tropical underutilized legume with beneficial nutritional characteristics such as high protein content, which may help to alleviate these problems. The proximate composition (fat, moisture content, crude protein, ash, and carbohydrate) and antinutrient (tannin and phytate) level of winged bean seeds and tubers were determined using 50 accessions. In the processed seeds, accession Tpt17 had the highest protein content (40.30%) and Tpt48 the lowest (34.18%). In the unprocessed seeds, Tpt17 also recorded the highest crude protein (31.13%) with Tpt125 having the lowest (28.43%). In the tubers, protein content ranged from 19.07% (Tpt42) to 12.26% (Tpt10). The moisture content in the processed seeds ranged from 8.51% (Tpt42) to 6.72% (Tpt6); in the unprocessed seeds, it was between 8.53% (Tpt53) and 3.76% (Tpt14). In the processed seeds, the values of ash ranged from 4.93% (Tpt126) to 4.45% (Tpt15-4); in the unprocessed seeds, it ranged from 4.98% (Tpt17) to 4.55% (Tpt125). In the processed seeds, the fat content ranged from 18.91% (Tpt51) to 14.09% (Tp43) while in the unprocessed seeds, the values ranged from 19.01% (Tpt15) to 13.87% (Tpt3-B). The crude fiber in the processed samples ranged from 13.82% (Tpt6) to 10.40% (Tpt125) while in the unprocessed seeds, it ranged from 7.29% in Tpt51 to 4.83% in Tpt11. Carbohydrate content in the processed seeds ranged from 26.30% (Tpt3-B) to 20.94% (Tpt125) and 39.76% in Tpt3-B to 34.53% in Tpt18 in the unprocessed seeds. The tannin and phytate contents showed remarkably significant differences. In the tubers harvested, significant variation was observed in the parameters evaluated. Winged bean flour could be formulated into various meals for children and adults to reduce malnutrition in sub-Saharan Africa.

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Section: Discussionsupporting

confidence: 91%

Section: Discussionsupporting

confidence: 83%

Nutrient and Antinutrient Composition of Winged Bean (Psophocarpus tetragonolobus (L.) DC.) Seeds and Tubers

Adegboyega

Abberton

AbdelGadir

et al. 2019

Journal of Food Quality

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“…Zhang (2015) had previously recommended polar solvent, in particular, methanol to extract condensed tannin from walnuts green husk. For P. tetragonolobus , n ‐hexane yielded the highest tannin content, probably due to the formation of saturated fatty acid–tannin complexes which facilitated tannin extraction by non‐polar solvent (Lepcha, Egan, Doyle, & Sathyanarayana, 2017).…”

Section: Resultsmentioning

confidence: 99%

The antioxidant index and chemometric analysis of tannin, flavonoid, and total phenolic extracted from medicinal plant foods with the solvents of different polarities

Samsuri

Yong

2020

J Food Process Preserv

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This study aimed to evaluate the effect of four solvents (water, methanol, ethyl acetate, and n‐hexane) on the extraction of total phenolic content (TPC), tannin, flavonoid, ferric reducing power (FRAP), and radical scavenging activity from Centella asiatica, Musa acuminata, Peperomia pellucida, and Psophocarpus tetragonolobus. The extraction of TPC, tannin, flavonoid, and antioxidant activity varied significantly according to solvent polarity and plant species. The strong linear correlation found between solvent polarity index and TPC, tannin, FRAP as well as radical scavenging activity indicated solvents with increasing polarity favored the extraction of phenolic antioxidants. Plant species and extraction solvents contributed to 51.7% and 21.8% of total activity variation, respectively. C. asiatica, M. acuminata flower, and P. pellucida were best extracted with 80°C distilled water for a short duration, while methanol was preferred for P. tetragonolobus. The antioxidant index could be a potential ranking tool to identify the ideal extraction solvent for medicinal plants. Practical applications Considering the high commercial and health‐oriented values of natural phenolic antioxidants such as tannin and flavonoid, efficient extraction of these phytochemicals from different plant sources remains a challenging task due to their varying physicochemical characteristics and solubility. This study has addressed that the choice of solvents and types of plant species are critical extraction parameters for natural plant products. Comparison of tannin and flavonoid content among the different solvent extracts could reveal the ideal solvent which maximizes the extraction of phenolic antioxidants from different medicinal plants. The finding in this study may inspire nutraceutical, pharmaceutical, and cosmetic industries to re‐evaluate their procedure in selecting the optimal extraction solvent and condition for different plant materials. The proposed antioxidant index in this study could serve as a potential tool to rank extraction solvents based on the antioxidant values extracted from different medicinal plants.

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“…Its ability to produce green pods, edible leaves, and tuberous roots makes it a useful horticultural crop. Its mature seeds are a good source of protein and other nutrients, making winged bean a potential pulse crop for large-scale production in the humid and sub-humid tropics (NAS 1975b;Gross 1983;Kadam et al 1984;Misra and Misra 1985;Lepcha et al 2017). The nutritional profile of these edible parts could play a major role in diet improvement of people especially in areas where major vegetable crops require high-inputs, limiting consumers' access to vegetables.…”

Section: Winged Bean: a Perspectivementioning

confidence: 99%

“…Protein content and fatty acid profiles compare favourably with soybean and chickpea (Cicer arietinum) (Claydon 1975;Kadam et al 1984), and peanut (Garcia et al 1979;Ekpenyong and Borchers 1980a;Garcia and Palmer 1980). A comprehensive assessment of the nutritional properties of winged bean seeds and the other edible parts, along with comparisons with other leguminous crops, have being adequately reviewed elsewhere (see for example Claydon 1975Claydon , 1983Kailasapathy and Sandrasegaram 1983;Kadam et al 1984;Kantha and Erdman 1984;Kailasapathy and Macneil 1985;Prakash et al 1991;Lepcha et al 2017). However, for mature seeds, two points should be mentioned.…”

Section: Mature Seeds Consumptionmentioning

confidence: 99%

Winged bean (Psophocarpus tetragonolobus (L.) DC.) for food and nutritional security: synthesis of past research and future direction

Tanzi

Eagleton

et al. 2019

Planta

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Main Conclusion Winged bean is popularly known as "One Species Supermarket" for its nutrient-dense green pods, immature seeds, tubers, leaves, and mature seeds. This underutilised crop has potential beneficial traits related to its biological nitrogen-fixation to support low-input farming. Drawing from past knowledge, and based on current technologies, we propose a roadmap for research and development of winged bean for sustainable food systems. Reliance on a handful of "major" crops has led to decreased diversity in crop species, agricultural systems and human diets. To reverse this trend, we need to encourage the greater use of minor, "orphan", underutilised species. These could contribute to an increase in crop diversity within agricultural systems, to improve human diets, and to support more sustainable and resilient food production systems. Among these underutilised species, winged bean (Psophocarpus tetragonolobus) has long been proposed as a crop for expanded use particularly in the humid tropics. It is an herbaceous perennial legume of equatorial environments and has been identified as a rich source of protein, with most parts of the plant being edible when appropriately prepared. However, to date, limited progress in structured improvement programmes has restricted the expansion of winged bean beyond its traditional confines. In this paper, we discuss the reasons for this and recommend approaches for better use of its genetic resources and related Psophocarpus species in developing improved varieties. We review studies on the growth, phenology, nodulation and nitrogen-fixation activity, breeding programmes, and molecular analyses. We then discuss prospects for the crop based on the greater understanding that these studies have provided and considering modern plant-breeding technologies and approaches. We propose a more targeted and structured research approach to fulfil the potential of winged bean to contribute to food security.

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A Review on Current Status and Future Prospects of Winged Bean (Psophocarpus tetragonolobus) in Tropical Agriculture

Cited by 43 publications

References 53 publications

Nutrient and Antinutrient Composition of Winged Bean (Psophocarpus tetragonolobus (L.) DC.) Seeds and Tubers

Nutrient and Antinutrient Composition of Winged Bean (Psophocarpus tetragonolobus (L.) DC.) Seeds and Tubers

The antioxidant index and chemometric analysis of tannin, flavonoid, and total phenolic extracted from medicinal plant foods with the solvents of different polarities

Winged bean (Psophocarpus tetragonolobus (L.) DC.) for food and nutritional security: synthesis of past research and future direction

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