Simultaneous quantification of allantoin and steroidal saponins in yam (Dioscorea spp.) powders

Lebot, Vincent; Faloye, Benjamin; Okon, Eric; Guèye, Badara

doi:10.1016/j.jarmap.2019.02.001

Cited by 16 publications

(11 citation statements)

References 44 publications

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“…Allantoin, one of the active compounds of Dioscorea polystachya , showed higher contents in tuber cortex. Our result confirmed previous studies showing that extracts of peel present higher allantoin content than extracts of flesh [24,30] . Similarly to the other potential biomarkers, 5‐hydroxy‐7‐methoxyflavanone and arnebinone were found almost exclusively in tuber cortex.…”

Section: Discussionsupporting

confidence: 91%

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Organ‐ and Age‐Specific Differences ofDioscorea polystachyaCompounds Measured by UPLC‐QTOF/MS

Guo

et al. 2021

Chemistry & Biodiversity

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Dioscorea polystachya, named Chinese yam, is widely cultivated as a functional food and natural medicine in China. There is currently little information about the chemical characteristics of Dioscorea polystachya in different organs (tuber cortex and tuber flesh) and at various ages. In this study, an ultra‐high‐performance liquid chromatography coupled to quadrupole time‐of‐flight mass spectrometry (UPLC‐QTOF/MS) was used to profile chemical compounds in Dioscorea polystachya. As a result, thirty‐eight compounds were detected in yam tuber cortex and tuber flesh. More compounds were detected in yam tuber cortex than in tuber flesh. Compounds such as dehydroepiandrosterone, allantoin and flavonoids were selected as biomarker candidates. Dehydroepiandrosterone was found more abundant in tuber flesh, while allantoin and flavonoids showed higher levels in tuber cortex. Furthermore, the levels of dioscin, malvalic acid and sucrose differed significantly among age groups and were highest in the tubers at 2 years. While the levels of allantoin, adenosine and glutamine increased with the growing years and were highest at 4 years. Thus, 2‐year old Dioscorea polystachya tubers could be harvested to prepare dioscin, malvalic acid and sucrose supplements. The 4‐year‐old Dioscorea polystachya tubers would be the best choice for obtaining a large amount of allantoin and adenosine in industrial production.

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Section: Discussionsupporting

confidence: 91%

“…Allantoin has remarkable antidiabetic effect. It also protects stomach tissues, inhibits tumor growth, reduces plasma glucose [30] . Adenosine, an ATP‐derived nucleoside, is a crucial modulator of immune responses in the neoplastic environment [34] .…”

Section: Discussionmentioning

confidence: 99%

Organ‐ and Age‐Specific Differences ofDioscorea polystachyaCompounds Measured by UPLC‐QTOF/MS

Guo

et al. 2021

Chemistry & Biodiversity

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“…China is one of the important domestication centers of yams such as D. opposita , D. alata , and the records of D. opposita dating back to “the Classic of Mountains and Rivers” more than 4,000 years ago (Yuan, 1980). In China, yam is known as a medicinal and edible crop with high nutritional and medicinal value; its tuber is rich in starch, protein, and medicinal ingredients (e.g., allinogenin, diosgenin, and dehydroepiandrosterone; Lebot et al., 2019). The cultivar “Tiegun” is one of the most popular D. opposita cultivars and has been used for more than 2000 years to treat conditions such as diarrhea, diabetes, and asthma (Peng et al., 2017).…”

Section: Introductionmentioning

confidence: 99%

Uncovering the genetic diversity of yams (Dioscorea spp.) in China by combining phenotypic trait and molecular marker analyses

Cao

Sun

Shan

et al. 2021

Ecology and Evolution

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“…On the other hand, steroidal glycosides are known as cardiac glycosides, cardenolides and bufadienolides have known effects on the heart muscles and adrenaline booster for athletes. It was also found out that bulbils were rich in allantoin (20.38 mg/gm) (31).…”

Section: Phytochemical Contentsmentioning

confidence: 92%

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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Simultaneous quantification of allantoin and steroidal saponins in yam (Dioscorea spp.) powders

Cited by 16 publications

References 44 publications

Organ‐ and Age‐Specific Differences ofDioscorea polystachyaCompounds Measured by UPLC‐QTOF/MS

Organ‐ and Age‐Specific Differences ofDioscorea polystachyaCompounds Measured by UPLC‐QTOF/MS

Uncovering the genetic diversity of yams (Dioscorea spp.) in China by combining phenotypic trait and molecular marker analyses

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

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