Physical and chemical characteristics of depigmented oven dried dehulled millet flours
The physical and chemical characteristics oven dried millet flour from dehulled millet soaked in different media was studied. Depigmented oven dried dehulled millet flour was produced by soaking dehulled millet in different solutions; water, 1% NaCl, 1% Na2CO3, and 1% citric acid. All samples were s...
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| Format: | Article |
| Language: | English |
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Turkish Science and Technology (TST)
2018
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| Online Access: | http://psasir.upm.edu.my/id/eprint/73497/1/Physical%20and%20chemical%20characteristics%20of%20depigmented%20oven%20dried%20dehulled%20millet%20flours.pdf |
| _version_ | 1796979580502802432 |
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| author | Adgidzi, Eunice Asheobin Ani, Jane Chinyelu Karim, Roselina Mohd Ghazali, Hasanah |
| author_facet | Adgidzi, Eunice Asheobin Ani, Jane Chinyelu Karim, Roselina Mohd Ghazali, Hasanah |
| author_sort | Adgidzi, Eunice Asheobin |
| collection | UPM |
| description | The physical and chemical characteristics oven dried millet flour from dehulled millet soaked in different media was studied. Depigmented oven dried dehulled millet flour was produced by soaking dehulled millet in different solutions; water, 1% NaCl, 1% Na2CO3, and 1% citric acid. All samples were soaked in their respective solution for 12h, dried in the oven at 60oC for 6h then milled into flour and sieved through 710µm mesh size. The physical properties of oven dried dehulled millet; colour had L* (whiteness value), a* (redness values), and b* (yellowness values) that differed significantly ranging from 66.74 to 84.21, 0.85 to 1.43, and 6.89 to 12.69 respectively. The minimum, mean and maximum particle size distributions of samples ranged from 9.53 to 23.41µm, 29.09 to 50.15µm and 59.46 to 176.01 µm respectively. Starch granules in micrographs of oven dried depigmented millet flours were irregular, compact and polygonally shaped. Gelatinization properties of oven dried millet flour; the onset temperature (To), peak temperature (Tp), end set temperature (Te) and enthalpy varied significantly ranging from 70.15 to 97.65 o C, 79.48 to 102.31 o C, 83.30 to 104.96 o C, and 6.70 to 28.41 (J/g) respectively. Chemical properties comprising of moisture, fats, ash, protein, crude fiber, pH, total titratable acidity, pH of soak solution, phytates and tannins varied significantly ranging from 10.19 to 10.88%, 4.27 to 4.61%, 0.71 to 1.19%, 7.25 to 8.67%, 1.00 to 1.08%, 4.35 to 8.45, 0.001 to 0.084%, 3.32 to 9.93, 0.60 to 0.62, 1.84 to 6.45mg/g and 3.06 to 6.68 mg/g respectively. Depigmenting dehulled millet by soaking in 1% Na2CO3 impaired the colour of sample ODMF2 while depigmenting dehulled millet grains by soaking in 1% citric acid solution for 12 h improved colour of sample ODMF1. |
| first_indexed | 2024-03-06T10:10:59Z |
| format | Article |
| id | upm.eprints-73497 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T10:10:59Z |
| publishDate | 2018 |
| publisher | Turkish Science and Technology (TST) |
| record_format | dspace |
| spelling | upm.eprints-734972020-05-30T17:26:09Z http://psasir.upm.edu.my/id/eprint/73497/ Physical and chemical characteristics of depigmented oven dried dehulled millet flours Adgidzi, Eunice Asheobin Ani, Jane Chinyelu Karim, Roselina Mohd Ghazali, Hasanah The physical and chemical characteristics oven dried millet flour from dehulled millet soaked in different media was studied. Depigmented oven dried dehulled millet flour was produced by soaking dehulled millet in different solutions; water, 1% NaCl, 1% Na2CO3, and 1% citric acid. All samples were soaked in their respective solution for 12h, dried in the oven at 60oC for 6h then milled into flour and sieved through 710µm mesh size. The physical properties of oven dried dehulled millet; colour had L* (whiteness value), a* (redness values), and b* (yellowness values) that differed significantly ranging from 66.74 to 84.21, 0.85 to 1.43, and 6.89 to 12.69 respectively. The minimum, mean and maximum particle size distributions of samples ranged from 9.53 to 23.41µm, 29.09 to 50.15µm and 59.46 to 176.01 µm respectively. Starch granules in micrographs of oven dried depigmented millet flours were irregular, compact and polygonally shaped. Gelatinization properties of oven dried millet flour; the onset temperature (To), peak temperature (Tp), end set temperature (Te) and enthalpy varied significantly ranging from 70.15 to 97.65 o C, 79.48 to 102.31 o C, 83.30 to 104.96 o C, and 6.70 to 28.41 (J/g) respectively. Chemical properties comprising of moisture, fats, ash, protein, crude fiber, pH, total titratable acidity, pH of soak solution, phytates and tannins varied significantly ranging from 10.19 to 10.88%, 4.27 to 4.61%, 0.71 to 1.19%, 7.25 to 8.67%, 1.00 to 1.08%, 4.35 to 8.45, 0.001 to 0.084%, 3.32 to 9.93, 0.60 to 0.62, 1.84 to 6.45mg/g and 3.06 to 6.68 mg/g respectively. Depigmenting dehulled millet by soaking in 1% Na2CO3 impaired the colour of sample ODMF2 while depigmenting dehulled millet grains by soaking in 1% citric acid solution for 12 h improved colour of sample ODMF1. Turkish Science and Technology (TST) 2018 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/73497/1/Physical%20and%20chemical%20characteristics%20of%20depigmented%20oven%20dried%20dehulled%20millet%20flours.pdf Adgidzi, Eunice Asheobin and Ani, Jane Chinyelu and Karim, Roselina and Mohd Ghazali, Hasanah (2018) Physical and chemical characteristics of depigmented oven dried dehulled millet flours. Turkish Journal of Agriculture - Food Science and Technology, 6 (8). 1022 - 1029. ISSN 2148-127X http://www.agrifoodscience.com/index.php/TURJAF/article/view/1924 10.24925/turjaf.v6i8.1022-1029.1924 |
| spellingShingle | Adgidzi, Eunice Asheobin Ani, Jane Chinyelu Karim, Roselina Mohd Ghazali, Hasanah Physical and chemical characteristics of depigmented oven dried dehulled millet flours |
| title | Physical and chemical characteristics of depigmented oven dried dehulled millet flours |
| title_full | Physical and chemical characteristics of depigmented oven dried dehulled millet flours |
| title_fullStr | Physical and chemical characteristics of depigmented oven dried dehulled millet flours |
| title_full_unstemmed | Physical and chemical characteristics of depigmented oven dried dehulled millet flours |
| title_short | Physical and chemical characteristics of depigmented oven dried dehulled millet flours |
| title_sort | physical and chemical characteristics of depigmented oven dried dehulled millet flours |
| url | http://psasir.upm.edu.my/id/eprint/73497/1/Physical%20and%20chemical%20characteristics%20of%20depigmented%20oven%20dried%20dehulled%20millet%20flours.pdf |
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