Secondary metabolites content may clarify the traditional selection process of the greater yam cultivars (Dioscorea alata L.)

Lebot, Vincent; Malapa, Roger; Abraham, K.; Molisalé, Tari; Kien, Nguyen Van; Guèye, Badara; Waki, Jeffrey

doi:10.1007/s10722-018-0647-0

Cited by 11 publications

(7 citation statements)

References 26 publications

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“…One economically significant tuber yielding plant is Greater yam ( Dioscorea alata L.), commonly called yam. It is also called water or winged yam, the second most produced and most scattered species worldwide ( Lebot et al, 2018 ). Yam crop is dioecious herbaceous vines majorly cultivated for their starchy tubers having high nutritional content ( Vashi et al, 2018 ).…”

Section: Introductionmentioning

confidence: 99%

Rhizophagus irregularis and nitrogen fixing azotobacter enhances greater yam (Dioscorea alata) biochemical profile and upholds yield under reduced fertilization

Kumar

Naqvi

Kaushik

et al. 2022

Saudi Journal of Biological Sciences

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Section: Introductionmentioning

confidence: 99%

Rhizophagus irregularis and nitrogen fixing azotobacter enhances greater yam (Dioscorea alata) biochemical profile and upholds yield under reduced fertilization

Kumar

Naqvi

Kaushik

et al. 2022

Saudi Journal of Biological Sciences

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“…A study on the Dioscorea species of India attempted to screen the ethnobotanical importance of root tubers and proposed that differences exist within species in terms of phytochemicals and their concentrations [ 33 , 34 , 35 ]. The secondary metabolite profiling of the Dioscorea alata L. also helped to clarify the traditional selection process of the grater yam cultivars [ 36 ]. Thus, attempts at the metabolite profiling of root or tuber crops are needed to facilitate modern breeding [ 37 ].…”

Section: Introductionmentioning

confidence: 99%

Metabolome Profiling of Eight Chinese Yam (Dioscorea polystachya Turcz.) Varieties Reveals Metabolite Diversity and Variety Specific Uses

Zeng

Liu

Huang

2021

Life

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The Chinese yam (Dioscorea polystachya Turcz.) is an underutilized orphan tuber crop. However, in China it has been used in traditional medicine and food for centuries due to the presence of high starch, protein, fiber, and biologically active compounds. Knowledge on the metabolomic profiles of Chinese yam varieties is needed to explore the underutilized metabolites and variety specific uses. Here, the metabolome of eight Chinese yam varieties that are cultivated in different Chinese regions was profiled. A total of 431 metabolites belonging to different biochemical classes was detected. The majority of detected metabolites were classified as amino acids and derivatives. The different yam varieties offer unique uses; e.g., Hebei Ma Yam, Henan Huai Yam, and Henan Wild Yam were the most metabolically enriched and suitable as food and medicine. Yams from Hubei region had comparable nutritional profiles, which is most probably due to their geographical origin. Specifically, Henan Wild Yam had the highest concentrations of diosgenin, vitamins, and polysaccharides. Overall, this study presents a metabolome reference for D. polystachya varieties.

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“…As a result, Lebot et al. () found neither dioscin nor gracillin in 550 varieties of D. alata , either in local varieties or hybrids. Catechin, which is related to browning susceptibility and therefore to low market value, was not detected either.…”

Section: Influence Of Intrinsic Factors Such As Genotype and Tissue Omentioning

confidence: 98%

Carbohydrate and bioactive compounds composition of starchy tropical fruits and tubers, in relation to pre and postharvest conditions: A review

Rinaldo

2020

Journal of Food Science

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In some tropical countries, people are suffering from both undernourishment and noncommunicable disorders, such as overweight/obesity. Starchy tropical fruits and tubers are of particular interest for their carbohydrate content and for the micronutrients they provide. The present study summarizes the content in carbohydrate, phenolics, carotenoids, and vitamin C, as well as the antioxidant activity of a wide range of tropical fruits and tubers. The energy content of fruits and tubers studied is in the range of 1,200 to 1,800 kJ/100 g of dry weight. They are thus important staple foods and, due to their diversity and seasonality, they can provide energy all year long by alternating the resources in the human diet. Starchy fruit and tuber crops have antiobesity properties as they are bulky, rich in moisture, and contain less than 2% of fat. Noncolored fruit and tubers provide total phenolics at about 20 to 140 mEq/100 g fresh weight. They thus have a high antioxidant capacity, as related to their total phenolic content but also to the presence of carotenoids, such as lutein, mostly in Dioscorea bulbifera and cocoyam. Yellow and orange-fleshed varieties contain more total phenolics and also more provitamin A carotenoids than noncolored fleshed ones. The contents in total phenolic and carotenoid greatly vary with the species and variety. The influence of pre and postharvest conditions on micronutrient content is discussed. Further studies on new processing methods are needed to maximize polyphenols and carotenoids retention in the foods and increase the bioaccessibility of these compounds.Practical Application: This paper provides information on the nutritional quality of starchy tropical fruits and tubers. Nutritional quality is studied from the point of view of providing energy and bioactive compounds. The paper aims to promote the use of local resources in tropical areas, which could ultimately limit the adverse effects of food globalization on noncommunicable disorders. It could also lead to tropical countries being less dependent on food imports.

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Secondary metabolites content may clarify the traditional selection process of the greater yam cultivars (Dioscorea alata L.)

Cited by 11 publications

References 26 publications

Rhizophagus irregularis and nitrogen fixing azotobacter enhances greater yam (Dioscorea alata) biochemical profile and upholds yield under reduced fertilization

Rhizophagus irregularis and nitrogen fixing azotobacter enhances greater yam (Dioscorea alata) biochemical profile and upholds yield under reduced fertilization

Metabolome Profiling of Eight Chinese Yam (Dioscorea polystachya Turcz.) Varieties Reveals Metabolite Diversity and Variety Specific Uses

Carbohydrate and bioactive compounds composition of starchy tropical fruits and tubers, in relation to pre and postharvest conditions: A review

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