Cassava starch processing at small scale in North Vietnam
In Northern Vietnam, small-scale cassava starch processing is conducted in densely populated craft villages, where processors face difficulties to expand their activities. Three different processing systems were studied among a cluster of three communes in the Red River Delta, producing up to 430 t...
| Autores principales: | , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Wiley
2008
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/43247 |
| _version_ | 1855532911876374528 |
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| author | Da, Guillaume Dufour, D.L. Marouzé, Claude Thanh, ML Maréchal, Pierre-André |
| author_browse | Da, Guillaume Dufour, D.L. Marouzé, Claude Maréchal, Pierre-André Thanh, ML |
| author_facet | Da, Guillaume Dufour, D.L. Marouzé, Claude Thanh, ML Maréchal, Pierre-André |
| author_sort | Da, Guillaume |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | In Northern Vietnam, small-scale cassava starch processing is conducted in densely populated craft villages, where processors face difficulties to expand their activities. Three different processing systems were studied among a cluster of three communes in the Red River Delta, producing up to 430 t of starch (at 55% dry matter) per day. The first system, type A, is a cylindrical rasper and a manual sieve, the second, type B, is a cylindrical rasper and stirring-filtering machine and the third, type C, used equipment for both the rasping and filtering stages. Moisture, starch, crude fibers and ash content analysis were carried out on samples collected from the A-B-C manufacturing processes to establish the mass balance of starch. Production capacity, water consumption, electrical requirements and capital-labor costs per tonne of starch (12% moisture) were also reported. A-B-C manufacturing processes enabled 75% recovery of the starch present in fresh roots. No significant change was observed in the composition of starch. Upgrading from system A to B and subsequently to C resulted in an increase in the extraction capacities (up to 0.9 t of peeled roots per hour), the extraction efficiencies during the extraction stage (up to 93%), and an increase in the water consumption and electrical power (up to 21 m3 and 55 kWh per tonne of starch, respectively). The highest amount of total solids carried in the waste-water was obtained with type C (up to 17% of the dry weight of fresh roots, compared to 10% and 13% for type A and B, respectively). This may lead to a higher chemical oxygen demand (COD) and biological oxygen demand (BOD) in waste-water, which can result in more polluted waste-water than compared with the type A and B technologies. Upgrading the rasping-extraction technologies also resulted in higher profits and reduction of labor per tonne of starch (up to 18 US$ and 26 man-hours respectively). The diagnosis proposed in this study can be applied in different contexts to recommend technological options by considering space, energy and capital-labor availabilities. |
| format | Journal Article |
| id | CGSpace43247 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2008 |
| publishDateRange | 2008 |
| publishDateSort | 2008 |
| publisher | Wiley |
| publisherStr | Wiley |
| record_format | dspace |
| spelling | CGSpace432472024-08-27T10:36:38Z Cassava starch processing at small scale in North Vietnam Da, Guillaume Dufour, D.L. Marouzé, Claude Thanh, ML Maréchal, Pierre-André manihot esculenta dry matter content starch processing water use equipment roots extraction contenido de materia seca almidón procesamiento uso del agua equipo raíces extracción In Northern Vietnam, small-scale cassava starch processing is conducted in densely populated craft villages, where processors face difficulties to expand their activities. Three different processing systems were studied among a cluster of three communes in the Red River Delta, producing up to 430 t of starch (at 55% dry matter) per day. The first system, type A, is a cylindrical rasper and a manual sieve, the second, type B, is a cylindrical rasper and stirring-filtering machine and the third, type C, used equipment for both the rasping and filtering stages. Moisture, starch, crude fibers and ash content analysis were carried out on samples collected from the A-B-C manufacturing processes to establish the mass balance of starch. Production capacity, water consumption, electrical requirements and capital-labor costs per tonne of starch (12% moisture) were also reported. A-B-C manufacturing processes enabled 75% recovery of the starch present in fresh roots. No significant change was observed in the composition of starch. Upgrading from system A to B and subsequently to C resulted in an increase in the extraction capacities (up to 0.9 t of peeled roots per hour), the extraction efficiencies during the extraction stage (up to 93%), and an increase in the water consumption and electrical power (up to 21 m3 and 55 kWh per tonne of starch, respectively). The highest amount of total solids carried in the waste-water was obtained with type C (up to 17% of the dry weight of fresh roots, compared to 10% and 13% for type A and B, respectively). This may lead to a higher chemical oxygen demand (COD) and biological oxygen demand (BOD) in waste-water, which can result in more polluted waste-water than compared with the type A and B technologies. Upgrading the rasping-extraction technologies also resulted in higher profits and reduction of labor per tonne of starch (up to 18 US$ and 26 man-hours respectively). The diagnosis proposed in this study can be applied in different contexts to recommend technological options by considering space, energy and capital-labor availabilities. 2008-07 2014-09-24T08:41:50Z 2014-09-24T08:41:50Z Journal Article https://hdl.handle.net/10568/43247 en Limited Access Wiley |
| spellingShingle | manihot esculenta dry matter content starch processing water use equipment roots extraction contenido de materia seca almidón procesamiento uso del agua equipo raíces extracción Da, Guillaume Dufour, D.L. Marouzé, Claude Thanh, ML Maréchal, Pierre-André Cassava starch processing at small scale in North Vietnam |
| title | Cassava starch processing at small scale in North Vietnam |
| title_full | Cassava starch processing at small scale in North Vietnam |
| title_fullStr | Cassava starch processing at small scale in North Vietnam |
| title_full_unstemmed | Cassava starch processing at small scale in North Vietnam |
| title_short | Cassava starch processing at small scale in North Vietnam |
| title_sort | cassava starch processing at small scale in north vietnam |
| topic | manihot esculenta dry matter content starch processing water use equipment roots extraction contenido de materia seca almidón procesamiento uso del agua equipo raíces extracción |
| url | https://hdl.handle.net/10568/43247 |
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