Effect of harvesting periods on the morphology and physico-chemical properties of trifoliate yam starches

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dc.contributor.authorAkinoso, Rahman
dc.contributor.authorAbiodun, Olufunmilola Adunni
dc.date.accessioned2018-12-07T12:29:53Z
dc.date.available2018-12-07T12:29:53Z
dc.date.issued2013
dc.description.abstractTrifoliate yam starches from white and yellow cultivars were isolated and characterized by SEM, granule size analysis, pasting properties and swelling characteristics at different harvesting periods were studied. The starch yield ranged from 5.09 to 12.07%. White trifoliate yam had the highest starch yield at 9 months and this was significantly different (p<0.05) from others. The scanning electron micrograph revealed the presence of smooth surface granules with polygonal granule size ranging from 2.58 to 3.58 mm in diameter. Amylose and starch contents ranged from 14.65 to 17.44% and 40.73 to 63.34%, respectively. Peak viscosity ranged from 199.77 to 373.71 RVU, holding strength from 77.68 to 167.84 RVU, breakdown 96.79 to 217.14 RVU, final viscosity 149.84 to 267.58 RVU, setback 50.34 to 112.27 RVU. White trifoliate yam starch at 7 months had the highest peak viscosity and breakdown but it exhibits high value in holding strength at 8 months. White trifoliate yam starch harvested at 10 months had the highest swelling power at 60 and 80 oC while at 90 oC, the highest value was recorded for starch at 11 months. The yellow starch at 10 months had higher swelling power at 90 oC. Harvesting of trifoliate yam at different periods produced starches that can be used for different purposes.en_US
dc.identifier.citation(46) Akinoso, R. and Abiodun O.A (2013). Effect of harvesting periods on the morphology and physico-chemical properties of trifoliate yam starches. Starch/Starke 65: 753-761en_US
dc.identifier.urihttp://hdl.handle.net/123456789/1367
dc.language.isoenen_US
dc.publisherWILEY-VCH Verlag GmbH & Co. KGaA, Weinheimen_US
dc.subjectCultivar / Harvesting periodsen_US
dc.subjectStarchen_US
dc.subjectSwelling poweren_US
dc.subjectTrifoliate yamen_US
dc.titleEffect of harvesting periods on the morphology and physico-chemical properties of trifoliate yam starchesen_US

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