Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 427047
Title Carrageenan drying with dehumidified air: drying characteristics and product quality
Author(s) Djaeni, M.; Sasongko, S.B.; Prasetyaningrum, Aji A, A.A.; Jin, X.; Boxtel, A.J.B. van
Source International Journal of Food Engineering 8 (2012)3. - ISSN 1556-3758
Department(s) Systems and Control Group
Biomass Refinery and Process Dynamics
Publication type Refereed Article in a scientific journal
Publication year 2012
Keyword(s) kappa-carrageenan - temperature - zeolites - starch - gel
Abstract Applying dehumidified air is considered as an option to retain quality in carrageenan drying. This work concerns the effects of operational temperature, air velocity, and carrageenan thickness on the progress of drying and product quality when using dehumidified air. Final product quality and progress of drying were measured by experiments, and a two dimensional model was developed to analyze progress of drying for the different operational conditions. The experimental and modeling results showed that air dehumidification with zeolite reduces the drying time the most at low temperatures. Under these conditions the carrageenan qualities whiteness and gel strength are the least affected by the exposure to the drying temperature. The drying time is the shortest at 120°C, but at this temperature the carrageenan quality degrades the most and is not be improved by air dehumidification. Moreover, the quality is improved by increasing the air velocity and by drying thin carrageenan sheets.
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