Download e-book for iPad: Amaranthus: A Promising Crop of Future by Saubhik Das

By Saubhik Das

ISBN-10: 981101468X

ISBN-13: 9789811014680

ISBN-10: 9811014698

ISBN-13: 9789811014697

This booklet serves the bigger neighborhood of plant researchers engaged on the taxonomy, species delimitation, phylogeny, and biogeography of pseudo-cereals, with a unique emphasis on amaranths. It additionally presents wide details at the nutritive worth of underutilized pseudo-cereals, the target being to expand the vegetable list.

Amaranthus is a sophisticated genus of annual or short-lived perennial vegetation. many of the species are summer time annual weeds and are as a rule known as pigweed. just a couple of are cultivated as vitamin-rich greens and ornamentals. The protein-rich seeds of a handful of species, often called grain amaranths, are ate up as pseudo-cereals. Amaranthusmanifests significant morphological variety between or even inside of sure species, and there's no common contract at the taxonomy or variety of species. at the moment the genus Amaranthus is thought to incorporate 3 famous subgenera and 70 species. Amatanthus is taken into account to in all likelihood provide an alternate crop in temperate and tropical climate.

The category of amaranths is ambiguous as a result of the loss of discrete and quantitative species-defining features and the big variety of phenotypic plasticity, in addition to introgression and hybridization regarding weedy and crop species. it's a identified proven fact that either vegetable and grain amaranths have advanced from their respective weed progenitors. There are greater than a hundred and eighty diverse weed species which are herbicide-resistant, and amaranths are thought of to be major participants of the resistant biotypes. Amaranth species offer abundant scope for investigating herbicide resistance mechanisms. Amaranths additionally express variability by way of their mating habit and germplasm, adaptability to diversified becoming stipulations, and wide selection of variability in sexual platforms, from monoecy to dioecy. a superior seize of those parameters is vital to the longer term usage of amaranths as tremendous plants. There are various amaranth learn heart and germplasm collections worldwide that preserve and evaluation operating germplasms. up to now, the genetic development of amaranths has essentially concerned the applying of traditional choice equipment. yet advances in genomics and biotechnology have dramatically enriched the aptitude to govern the amaranth genome, specifically enhancing the volume and availability of nutrients.

In end, the booklet covers all points of amaranths, together with their foodstuff worth, importance as greens and pseudo-cereals, taxonomy, phylogeny, germplasm variability, breeding habit and methods, cultivation practices, and variability by way of their sexual structures. It deals a invaluable source for all scholars, researchers and specialists operating within the box of plant taxonomy and diversity.

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The fibrous pulp left after extraction of leaf-protein concentrate is a suitable feed for animals. The protein quality of the amaranth leaf-nutrient concentrate in terms of amino acid composition, digestibility and nutritional effectiveness is excellent. The quality is however species dependent probably due to the presence of secondary metabolites present in varying amounts in some species (Carlsson 1982). Sanchez-Marroquin (1983) has given in detail agro-industrial uses of grain amaranths. A new food product called Amarlac and Amarmeal of high nutritional quality has been released in Guatemala by the Amaranth Food Company.

10 Bioactive Components and Medicinal Properties It is widely accepted that vegetables play an important role in preventing the development of cardiovascular diseases, ageing-related diseases, obesity and cancers and improving human memory (Wayne et al. 2000). The health-promoting effects of vegetables are attributed to their natural dietary antioxidants. Dietary antioxidants prevent free radicals related to ageing such as reactive oxygen species in the human body (Nilsson et al. 2004). The free radical theory of ageing involves cumulative damage through natural free radical oxidative changes, which over time results in increasing antigenicity, protein changes and oxidative DNA damages (Edelstein and Sharlin 2009).

As a kind of vegetable, Amaranth is ranked as one of the top five vegetables in antioxidant capacities (Walter 2001). It contains plenty of bioactive components, such as L-ascorbic acid, betacarotene, polyphenol, anthocyanins and lutein (Walter 2001). It has been used as an antipyretic to reduce labour pain in Indian and Nepalese traditional medicine, as astringent, 40 diuretic, haemorrhage and hepatoprotective agent (Kirtikar and Basu 1987). Amaranths have also been used to treat bladder distress, piles, toothache, blood disorders and dysentery (Madhav et al.

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Amaranthus: A Promising Crop of Future by Saubhik Das


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