Multi-locational assessment of some physicochemical attributes and amylase activity of sweetpotato varieties and elite materials in Ghana.
As part of the breeding objectives to select sweetpotato materials with acceptable quality attributes for adaptation and subsequent utilisation in Ghana, the total amylase activity and physicochemical attributes (flesh colour, Beta-carotene, dry matter, starch and sugars) of 13 sweetpotato genotypes...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Conference Paper |
| Language: | Inglés |
| Published: |
2012
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/66300 |
| _version_ | 1855537870664630272 |
|---|---|
| author | Owusu-Mensah, E. Oduro, I. Asafu-Agyei, J.N. Adofo, K. Obeng-Bio, E. Asamoah-Obeng, N. Awoodzie, J.K. Carey, E.E. |
| author_browse | Adofo, K. Asafu-Agyei, J.N. Asamoah-Obeng, N. Awoodzie, J.K. Carey, E.E. Obeng-Bio, E. Oduro, I. Owusu-Mensah, E. |
| author_facet | Owusu-Mensah, E. Oduro, I. Asafu-Agyei, J.N. Adofo, K. Obeng-Bio, E. Asamoah-Obeng, N. Awoodzie, J.K. Carey, E.E. |
| author_sort | Owusu-Mensah, E. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | As part of the breeding objectives to select sweetpotato materials with acceptable quality attributes for adaptation and subsequent utilisation in Ghana, the total amylase activity and physicochemical attributes (flesh colour, Beta-carotene, dry matter, starch and sugars) of 13 sweetpotato genotypes across five locations were evaluated. Near Infrared Reflectance Spectrometry (NIRS), was mainly employed in the study. The flesh colour of the materials ranged from white to deep orange while thedry matter content ranged from 20% to 44%. Starch, fructose, glucose and sucrose contents were 46– 74, 0.3 - 5, 2 – 8 and 9 – 22% respectively. Apomuden, a deep orange type, recorded the highesttotal sugar content of 36% and the lowest dry matter and starch content of 20% and 46% respectively. Hi-starch variety had the highest dry matter (45%), starch (74%) and the lowest sugar (11%). Dry matter content correlated positively with starch content whilst orange colour intensity was inversely proportional to dry matter content. The outcome of the study supports the fact that sweet potato contains high extractable amylases. Amylase activity of the materials was fairly stable across locations. Okomkum, Faara, Santom Pona, Kemb, and Cemsa 74-228 recorded the highest activity while Hi-starch, Apomuden, Mohc, and 199062.1 were low. There was no correlation between raw sugars and amylase activity. The potential of individual cultivars for food industry will be discussed in relation to starch content and extractable amylases. |
| format | Conference Paper |
| id | CGSpace66300 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2012 |
| publishDateRange | 2012 |
| publishDateSort | 2012 |
| record_format | dspace |
| spelling | CGSpace663002025-11-06T14:03:56Z Multi-locational assessment of some physicochemical attributes and amylase activity of sweetpotato varieties and elite materials in Ghana. Owusu-Mensah, E. Oduro, I. Asafu-Agyei, J.N. Adofo, K. Obeng-Bio, E. Asamoah-Obeng, N. Awoodzie, J.K. Carey, E.E. sweet potatoes amylases chemicophysical properties dry matter sugars As part of the breeding objectives to select sweetpotato materials with acceptable quality attributes for adaptation and subsequent utilisation in Ghana, the total amylase activity and physicochemical attributes (flesh colour, Beta-carotene, dry matter, starch and sugars) of 13 sweetpotato genotypes across five locations were evaluated. Near Infrared Reflectance Spectrometry (NIRS), was mainly employed in the study. The flesh colour of the materials ranged from white to deep orange while thedry matter content ranged from 20% to 44%. Starch, fructose, glucose and sucrose contents were 46– 74, 0.3 - 5, 2 – 8 and 9 – 22% respectively. Apomuden, a deep orange type, recorded the highesttotal sugar content of 36% and the lowest dry matter and starch content of 20% and 46% respectively. Hi-starch variety had the highest dry matter (45%), starch (74%) and the lowest sugar (11%). Dry matter content correlated positively with starch content whilst orange colour intensity was inversely proportional to dry matter content. The outcome of the study supports the fact that sweet potato contains high extractable amylases. Amylase activity of the materials was fairly stable across locations. Okomkum, Faara, Santom Pona, Kemb, and Cemsa 74-228 recorded the highest activity while Hi-starch, Apomuden, Mohc, and 199062.1 were low. There was no correlation between raw sugars and amylase activity. The potential of individual cultivars for food industry will be discussed in relation to starch content and extractable amylases. 2012 2015-05-19T10:56:26Z 2015-05-19T10:56:26Z Conference Paper https://hdl.handle.net/10568/66300 en Open Access application/pdf Owusu-Mensah, E.; Oduro, I.; Asafu-Agyei, J.N.; Adofo, K.; Obeng-Bio, E.; Asamoah, N.O.; Awoodzie, J.K.; Carey, E.E. 2012. Multi-locational assessment of some physicochemical attributes and amylase activity of sweetpotato varieties and elite materials in Ghana. In: Okechukwu, R.U.; Adebowale, A.A.; Bodunde, H.; Eruvbetine, D.; Idowu, M.; Atanda, O.; Dipeolu, A.; Ayinde, A.I.; Obadina, A.O.; Sobukola, O.P.; Adebayo, K.; Sanni, L.O. (eds.). The roots (and tubers) of development and climate change: Book of Abstracts, conference programme. 16. Triennial Symposium of the International Society for Tropical Root Crops (ISTRC). Abeokuta (Nigeria). 23-28 Sep 2012. Abeokuta (Nigeria). p. 188.Abstract |
| spellingShingle | sweet potatoes amylases chemicophysical properties dry matter sugars Owusu-Mensah, E. Oduro, I. Asafu-Agyei, J.N. Adofo, K. Obeng-Bio, E. Asamoah-Obeng, N. Awoodzie, J.K. Carey, E.E. Multi-locational assessment of some physicochemical attributes and amylase activity of sweetpotato varieties and elite materials in Ghana. |
| title | Multi-locational assessment of some physicochemical attributes and amylase activity of sweetpotato varieties and elite materials in Ghana. |
| title_full | Multi-locational assessment of some physicochemical attributes and amylase activity of sweetpotato varieties and elite materials in Ghana. |
| title_fullStr | Multi-locational assessment of some physicochemical attributes and amylase activity of sweetpotato varieties and elite materials in Ghana. |
| title_full_unstemmed | Multi-locational assessment of some physicochemical attributes and amylase activity of sweetpotato varieties and elite materials in Ghana. |
| title_short | Multi-locational assessment of some physicochemical attributes and amylase activity of sweetpotato varieties and elite materials in Ghana. |
| title_sort | multi locational assessment of some physicochemical attributes and amylase activity of sweetpotato varieties and elite materials in ghana |
| topic | sweet potatoes amylases chemicophysical properties dry matter sugars |
| url | https://hdl.handle.net/10568/66300 |
| work_keys_str_mv | AT owusumensahe multilocationalassessmentofsomephysicochemicalattributesandamylaseactivityofsweetpotatovarietiesandelitematerialsinghana AT oduroi multilocationalassessmentofsomephysicochemicalattributesandamylaseactivityofsweetpotatovarietiesandelitematerialsinghana AT asafuagyeijn multilocationalassessmentofsomephysicochemicalattributesandamylaseactivityofsweetpotatovarietiesandelitematerialsinghana AT adofok multilocationalassessmentofsomephysicochemicalattributesandamylaseactivityofsweetpotatovarietiesandelitematerialsinghana AT obengbioe multilocationalassessmentofsomephysicochemicalattributesandamylaseactivityofsweetpotatovarietiesandelitematerialsinghana AT asamoahobengn multilocationalassessmentofsomephysicochemicalattributesandamylaseactivityofsweetpotatovarietiesandelitematerialsinghana AT awoodziejk multilocationalassessmentofsomephysicochemicalattributesandamylaseactivityofsweetpotatovarietiesandelitematerialsinghana AT careyee multilocationalassessmentofsomephysicochemicalattributesandamylaseactivityofsweetpotatovarietiesandelitematerialsinghana |