Dataset Information

Nutritional Value of the Duckweed Species of the Genus Wolffia (Lemnaceae) as Human Food.

ABSTRACT: Species of the genus Wolffia are traditionally used as human food in some of the Asian countries. Therefore, all 11 species of this genus, identified by molecular barcoding, were investigated for ingredients relevant to human nutrition. The total protein content varied between 20 and 30% of the freeze-dry weight, the starch content between 10 and 20%, the fat content between 1 and 5%, and the fiber content was ~25%. The essential amino acid content was higher or close to the requirements of preschool-aged children according to standards of the World Health Organization. The fat content was low, but the fraction of polyunsaturated fatty acids was above 60% of total fat and the content of n-3 polyunsaturated fatty acids was higher than that of n-6 polyunsaturated fatty acids in most species. The content of macro- and microelements (minerals) not only depended on the cultivation conditions but also on the genetic background of the species. This holds true also for the content of tocopherols, several carotenoids and phytosterols in different species and even intraspecific, clonal differences were detected in Wolffia globosa and Wolffia arrhiza. Thus, the selection of suitable clones for further applications is important. Due to the very fast growth and the highest yield in most of the nutrients, Wolffia microscopica has a high potential for practical applications in human nutrition.

SUBMITTER: Appenroth KJ

PROVIDER: S-EPMC6215809 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature

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Publications

Nutritional Value of the Duckweed Species of the Genus <i>Wolffia</i> (Lemnaceae) as Human Food.

Appenroth Klaus-J KJ Sree K Sowjanya KS Bog Manuela M Ecker Josef J Seeliger Claudine C Böhm Volker V Lorkowski Stefan S Sommer Katrin K Vetter Walter W Tolzin-Banasch Karla K Kirmse Rita R Leiterer Matthias M Dawczynski Christine C Liebisch Gerhard G Jahreis Gerhard G

Frontiers in chemistry 20181029

Species of the genus <i>Wolffia</i> are traditionally used as human food in some of the Asian countries. Therefore, all 11 species of this genus, identified by molecular barcoding, were investigated for ingredients relevant to human nutrition. The total protein content varied between 20 and 30% of the freeze-dry weight, the starch content between 10 and 20%, the fat content between 1 and 5%, and the fiber content was ~25%. The essential amino acid content was higher or close to the requirements ...[more]

PMID: 30420949

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Project description:BackgroundThe plant body in duckweed species has undergone reduction and simplification from the ancient Spirodela species towards more derived Wolffia species. Among the five duckweed genera, Wolffia members are rootless and represent the smallest and most reduced species. A better understanding of Wolffia frond architecture is necessary to fully explore duckweed evolution.ResultsWe conducted a comprehensive study of the morphology and anatomy of Wolffia globosa, the only Wolffia species in China. We first used X-ray microtomography imaging to reveal the three-dimensional and internal structure of the W. globosa frond. This showed that new fronds rapidly budded from the hollow reproductive pocket of the mother fronds and that several generations at various developmental stages could coexist in a single W. globosa frond. Using light microscopy, we observed that the meristem area of the W. globosa frond was located at the base of the reproductive pocket and composed of undifferentiated cells that continued to produce new buds. A single epidermal layer surrounded the W. globosa frond, and the mesophyll cells varied from small and dense palisade-like parenchyma cells to large, vacuolated cells from the ventral to the dorsal part. Furthermore, W. globosa fronds contained all the same organelles as other angiosperms; the most prominent organelles were chloroplasts with abundant starch grains.ConclusionsOur study revealed that the reproductive strategy of W. globosa plants enables the rapid accumulation of biomass and the wide distribution of this species in various habitats. The reduced body plan and size of Wolffia are consistent with our observation that relatively few cell types are present in these plants. We also propose that W. globosa plants are not only suitable for the study of structural reduction in higher plants, but also an ideal system to explore fundamental developmental processes of higher plants that cannot be addressed using other model plants.

Dataset Information

Nutritional Value of the Duckweed Species of the Genus Wolffia (Lemnaceae) as Human Food.

Publications

Nutritional Value of the Duckweed Species of the Genus <i>Wolffia</i> (Lemnaceae) as Human Food.

Similar Datasets

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