Woody species diversity and important value indices in dense dry forests in abdoulaye wildlife reserve togo, west africa. Pdf genetic diversity of dioscorea dumetorum kunth pax using. The lianas species are dominated by, dioscorea rourea coccinea dumetorum, cissus populnea, dioscorea burkilliana whereas the dominated herbaceous of the undergrowth layer were. Minimizing postharvest losses in yam dioscorea spp. Dioscorea dumetorum jakiri variety setts were supplied by the institute of agricultural research iar, 3ambui. Tuber replaced annually, much divided with short or cylindric roundended rootbearing lobes up to 2. Chemical composition and quality changes occurring in. Traditional food processing techniques of dioscorea. Dioscorea consists of the dried tubers of a number of wild and cultivated dioscorea species like d.
Diosgenin is a steroidal saponin, which is extracted from the root of wild yam. Pdf isolation of batatasin i from dioscorea dumetorum rhizomes. Click below on a thumbnail map or name for species profiles. Dioscorea dumetorum a total of 1052 aflp fragments of which 94. Dioscorea dumetorum, d rotundutu, yam flours, diet, rat, nutritional. Pdf batatasin i was shown to occur in the fresh rhizomes of poisonous yam dioscorea dumetorum pax. Yam dioscorea alata is a crop with potential for increased commercial. Genetic diversity of 43 dioscorea dumetorum accessions and two of dioscorea cayenensis lam as outgroup species was evaluated for qualitative and quantitative traits in two different agro. Comparative response of five varieties of dioscorea. Results showed that the yam has over a hundred vernacular or.
Contribute to bpuckeryam development by creating an account on github. How dioscorea deltoidea is effective for various diseases is listed in repertory format. Pdf dioscorea dumetorum pax as an alternative starch. Pdf nutritional quality of yam dioscorea dumetorum and d. Title vegetables in the tropics publication author tindall. Soda pdf merge tool allows you to combine two or more documents into a single pdf file for free. Woody species diversity and important value indices in. Technical sheet of some wild yam dioscorea species. Quality characteristics of processed flours from trifoliate yam dioscorea dumetorum as influenced by steeping and boiling in varying concentration of trona solution over time.
Dioscorea dumetorum kunth is the most nutritious among the eightyam species, commonly grown and consumed in west and central africa. Dioscorea dumetorum kunth is the most nutritious among the eightyam species. Dioscorea villosa is one of the species of yam referred to as wild yam dioscorea villosa has been claimed to alleviate symptoms of menopause, but there is currently no. Comparative study on the properties of yam dioscorea rotundata varieties in. University of ghana from the selectedworks of professor emmanuel ohene afoakwa june, 2002 biochemical and textural changes in trifoliate yam dioscorea dumetorum tubers after harvest. Genetic diversity and population structure of trifoliate yam. The tuber is commonly called cluster yam because it. Pdf the digestibility and metabolism of diets based on flours prepared from raw, boiled or steamed tubers of the sweet yam dioscorea dumetorum were. Postharvest hardening of the tubers of this species starts within 24 h after. Nutritional quality of yam dioscorea dumetorum and d. Get a printable copy pdf file of the complete article 556k, or click on a page. Pdf fatty acid composition of dioscorea dumetorum pax. Enjoy unrestricted access to all content and features, including.
Dioscorea bulbifera bulbil and tuber dioscorea multiflora, dioscorea burkilliana, dioscorea dumetorum and dioscorea togoensis picked in the. Characterization of chemical composition and antinutritional factors in seven species within the ghanaian yam dioscorea germplasm 987 international food research journal 193. Dioscorea dumetorumfed rats exhibited decreased body weight, blood glucose, and insulin in stzinduced diabetes henrietta aritetsoma ogbunugafor1, emmanuel emeka ilodigwe2. Data bases were computed on excel format, duplicates were identified. Dioscorea bulbifera commonly known as the air potato, air yam, aerial yam, bitter yam, cheeky yam, potato yam and parsnip yam is a species of true yam in the yam family, dioscoreaceae.
Metabolite profiling of dioscorea yam species reveals. Dioscorea dumetorum pax as an alternative starch source for industrial applications doi. West africa accounts for 9095% of world yam production with nigeria. Village participants used their own farmland for planting and con structea. Evaluation of starches obtained from four dioscorea.
Dioscorea dumetorum kunth pax is an indigenous underutilized nigerian yam, rich in. Dioscorea is a genus of over 600 species of flowering plants in the family dioscoreaceae, native throughout the tropical and warm temperate regions of the world. Pdf nutritional quality of yam dioscorea dumetorum and. List of various diseases cured by dioscorea deltoidea. Physicochemical, functional, and macromolecular properties of waxy yam starches discovered from mapuey dioscorea trifida genotypes in the venezuelan amazon. The tuber is commonly called cluster yam because it occurs naturally in clusters, bitter yam or trifoliate yam, and it is called ona by the igbos of southeast nigeria 9. Biochemical and textural changes in trifoliate yam. The increasing use of starch as alternative raw material for petroleum based chemical has been creating pressure on the food chain as most starches are obtained from food sources like cassava. There is therefore need to secure alternative starch. Dioscorea dumetorum kunth pax is an indigenous underutilized nigerian yam, rich in protein 9. Dioscorea villosa has one of the firmest of rhizomae, it being very difficult to powder or crush. Download adobe acrobat reader free software to read pdf files.
Various approaches involving augustus parameter files for rice and maize genome. The plant list includes 1,192 scientific plant names of species rank for the genus dioscorea. Physicochemical, functional, and macromolecular properties. Trifoliate yam dioscorea dumetorum is one example of an orphan crop, not traded internationally. Uses, benefits, cures, side effects, nutrients in dioscorea deltoidea. Dioscorea deltoidea herb uses, benefits, cures, side. It has no odor, and but little taste beyond a slight acridity after prolonged chewing. So far, a genome sequence assembly for dioscorea rotundata guinea yam 8 and a reference genetic map for dioscorea alata greater yam 9 have been released. Dioscorea dumetorum, also known as the bitter yam, cluster yam, or threeleaved yam, is a species of yam in the genus dioscorea that is found in africa.
Dioscorea cayenensis lam yellow guinea yam dioscorea dumetorum kunth pax threeleaved or bitter yam dioscorea rotundata poir. Starches obtained from four dioscorea species namely dioscorea dumetorum bitter, dioscorea oppositifolia chinese, dioscorea alata water, and dioscorea rotundata white have been. Filed as dioscorea dumetorum kunth pax family dioscoreaceae herbarium. Moistureheat treatment of tubers before pro cessing into flour improves the nutritional value, especially for d rotundutu. Rearrange individual pages or entire files in the desired order.
Dioscorea dumetorum is one of the varieties of yams and is of importance in a developing country like nigeria. The plants database includes the following 30 species of dioscorea. However, these two species belong to the same section of dioscorea d. Dioscorea root extract benefit and side effects by ray sahelian, m. Dioscorea dumetorum pax as an alternative starch source. Files are available under licenses specified on their description page. The purpose of the present investigation was to study the fatty acid compositions of edible and wild dioscorea dumetorum pax varieties harvested from farms and forests of ikot akpanabia. Air potato dioscorea bulbifera 3 three other introduced species of dioscorea may be encountered in florida. Genetic diversity of sweet yam dioscorea dumetorum kunth. Genome sequence assembly of trifoliate yam dioscorea. Dioscorea dumetorumfed rats exhibited decreased body.
Dioscorea dumetorum kunth pax bitter yam subordinate taxa. Uniuyo 2018 107 116 pp 107 comparative response of five varieties of dioscorea species yam to. Pdf genetic diversity and population structure of trifoliate yam. Year 1983 isbn 0333242688 description an excellent, indepth look at the main vegetable crops. Dioscorea dumetorum, cissus populnea, dioscorea burkilliana. A comparison of some pharmacological properties of dioscorine and. Dioscorea dumetorum kunth is the most nutritious among the eightyam species, commonly grown and consumed in. An eighteen year 19972015 study was therefore used to document the vernacular names and traditional food processing methods of cultivated and wild d.
Dioscorea villosa supplement health benefits, dosage. Pdf merge combinejoin pdf files online for free soda pdf. Albach1 and bernd weisshaar2 6 1 institute for biology and environmental sciences, biodiversity and evolution of plants, carlvonossietzky university. Antioxidant and anticholinesterase potential of two nigerian bitter.
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