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    Varietal effect on the moisture adsorption isotherm of yellowfleshed cassava root starches

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    Date
    2014-06
    Author
    Awoyale, W.
    Sanni, L.O.
    Shittu, T.A.
    Adegunwa, M.O.
    Gueye, B.
    Kulakow, P.A.
    Type
    Journal Article
    Target Audience
    Scientists
    Metadata
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    Abstract/Description
    The Moisture Adsorption Isotherm of three Yellow-fleshed Cassava Root Starches (YfCRS) were determined by the static gravimetric method at temperatures of 27 oC, 37 oC and 42 oC and water activities level of between 0.10 and 0.80. Data obtained were fitted to four sorption models (Peleg, GAB, Oswin and Langmuir). The model fit was evaluated using the coefficient of determination (R2), root mean square error (RMSE) and mean percentage deviation (%E). The results showed that Peleg model gave the best fit for predicting the moisture adsorption data of the starches (R2=0.99, RMSE=0.00, %E=0.00). TMS 06/1630 YfCRS had the highest monolayer moisture (M ) while that of TMS 01/1368 had the lowest. The high B-carotene content of TMS 01/1368 YfCRS could be responsible for its low M (r = -0.96), irrespective of the storage temperatures. However, all the YfCRS might be stored for longer periods at all the temperatures since their M fall within acceptable limit for storage stability.
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/1439
    IITA Subjects
    Cassava
    Agrovoc Terms
    Starch; Water Activity; Cassava; Adsorption Isotherm; Monolayer Moisture; Â-Carotene; Isotherm
    Regions
    Africa; West Africa
    Countries
    Nigeria
    Journals
    African Journal of Root and Tuber Crops
    Collections
    • Journal and Journal Articles5286
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