| Título: |
Image analysis for composition monitoring. Commercial blends of olive and soybean oil - doi: 10.4025/actascitechnol.v35i2.15216 |
| Autores: |
Fernandes, Jessica Kehrig; Universidade Federal do Parana Umebara, Tiemi; Universidade Federal do Parana Lenzi, Marcelo Kaminski; Universidade Federal do Parana Silva, Ediely Teixeira; Universidade Federal do Parana |
| Fecha: | 2013-04-18 |
| Publicador: | Acta Scientiarum. Techonology |
| Fuente: |
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| Tipo: |
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| Tema: |
3.06.00.00-6 edible oils; mixture; sensor; spectroscopy; RGB Engenharia Quimica |
| Descripción: |
Olive oil represents an important component of a healthy and balanced dietary. Due to commercial features, characterization of pure olive oil and commercial mixtures represents an important challenge. Reported techniques can successfully quantify components in concentrations lower than 1%, but may present long delays, too many purification steps or use expensive equipment. Image analysis represents an important characterization technique for food science and technology. By coupling image and UV-VIS spectroscopy analysis, models with linear dependence on parameters were developed and could successfully describe the mixture concentration in the range of 0-100% in mass of olive oil content. A validation sample, containing 25% in mass of olive oil, not used for parameter estimation, was also used for testing the proposed procedure, leading to a prediction of 24.8 ± 0.6. Due to image analysis results, 3-parameter-based models considering only R and G components were developed for olive oil content prediction in mixtures with up to 70% in mass of olive oil, the same test sample was used and its concentration was predicted as 24.5 ± 1.2. These results show that image analysis represents a promising technique for on-line/in-line monitoring of blending process of olive soybean oil for commercial mixtures. |
| Idioma: | Inglés |