Moisture Sorption Behaviour and Mould Ecology of Trade Garri Sold in South Eastern Nigeria
Garri is a creamy white or yellow starchy grit produced by roasting to gelatinization and dryness of peeled, washed, mashed, and fermented dewatered cassava roots. It is the most important product of cassava in West and Central Africa. Mean moisture content of yellow and white garri was 11.11% and 1...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | International Journal of Food Science |
| Online Access: | http://dx.doi.org/10.1155/2014/218959 |
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| author | Tochukwu Samuel J. Obeta Ugwuanyi |
| author_facet | Tochukwu Samuel J. Obeta Ugwuanyi |
| author_sort | Tochukwu Samuel |
| collection | DOAJ |
| description | Garri is a creamy white or yellow starchy grit produced by roasting to gelatinization and dryness of peeled, washed, mashed, and fermented dewatered cassava roots. It is the most important product of cassava in West and Central Africa. Mean moisture content of yellow and white garri was 11.11% and 10.81% within 24 hrs of sampling from the market, increasing to 17.27% and 16.14%, respectively, following 3 months of storage at room temperature. The water activity of samples varied from initial 0.587 to 0.934 following storage. Moisture sorption isotherms, determined by static gravimetric techniques at 20° and 30°C, showed temperature dependent BET Sigmoidal type II behaviour typical of carbohydrate rich foods but modulated very slightly by the content of palm oil. Equilibrium moisture content decreased with increase in temperature at constant water activity. A total of 10 fungal species belonging to the genera Mucor, Penicillium, Cephalosporium, Aspergillus, Scopulariopsis, Rhizopus, and Paecilomyces were identified, with range increasing with water activity of samples. |
| format | Article |
| id | doaj-art-15c1820f679e43eb95438372e4dfcca9 |
| institution | Kabale University |
| issn | 2356-7015 2314-5765 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
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| series | International Journal of Food Science |
| spelling | doaj-art-15c1820f679e43eb95438372e4dfcca92025-02-03T01:32:45ZengWileyInternational Journal of Food Science2356-70152314-57652014-01-01201410.1155/2014/218959218959Moisture Sorption Behaviour and Mould Ecology of Trade Garri Sold in South Eastern NigeriaTochukwu Samuel0J. Obeta Ugwuanyi1Department of Microbiology, University of Nigeria, Nsukka 410001, NigeriaDepartment of Microbiology, University of Nigeria, Nsukka 410001, NigeriaGarri is a creamy white or yellow starchy grit produced by roasting to gelatinization and dryness of peeled, washed, mashed, and fermented dewatered cassava roots. It is the most important product of cassava in West and Central Africa. Mean moisture content of yellow and white garri was 11.11% and 10.81% within 24 hrs of sampling from the market, increasing to 17.27% and 16.14%, respectively, following 3 months of storage at room temperature. The water activity of samples varied from initial 0.587 to 0.934 following storage. Moisture sorption isotherms, determined by static gravimetric techniques at 20° and 30°C, showed temperature dependent BET Sigmoidal type II behaviour typical of carbohydrate rich foods but modulated very slightly by the content of palm oil. Equilibrium moisture content decreased with increase in temperature at constant water activity. A total of 10 fungal species belonging to the genera Mucor, Penicillium, Cephalosporium, Aspergillus, Scopulariopsis, Rhizopus, and Paecilomyces were identified, with range increasing with water activity of samples.http://dx.doi.org/10.1155/2014/218959 |
| spellingShingle | Tochukwu Samuel J. Obeta Ugwuanyi Moisture Sorption Behaviour and Mould Ecology of Trade Garri Sold in South Eastern Nigeria International Journal of Food Science |
| title | Moisture Sorption Behaviour and Mould Ecology of Trade Garri Sold in South Eastern Nigeria |
| title_full | Moisture Sorption Behaviour and Mould Ecology of Trade Garri Sold in South Eastern Nigeria |
| title_fullStr | Moisture Sorption Behaviour and Mould Ecology of Trade Garri Sold in South Eastern Nigeria |
| title_full_unstemmed | Moisture Sorption Behaviour and Mould Ecology of Trade Garri Sold in South Eastern Nigeria |
| title_short | Moisture Sorption Behaviour and Mould Ecology of Trade Garri Sold in South Eastern Nigeria |
| title_sort | moisture sorption behaviour and mould ecology of trade garri sold in south eastern nigeria |
| url | http://dx.doi.org/10.1155/2014/218959 |
| work_keys_str_mv | AT tochukwusamuel moisturesorptionbehaviourandmouldecologyoftradegarrisoldinsoutheasternnigeria AT jobetaugwuanyi moisturesorptionbehaviourandmouldecologyoftradegarrisoldinsoutheasternnigeria |