Convective, vacuum and microwave drying kinetics of mallow leaves and comparison of color and ascorbic acid values of three drying methods
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| Format: | Artículo científico |
| Language: | en |
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Sociedade Brasileira de Ciência e Tecnologia de Alimentos
2014
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| _version_ | 1876464916114702336 |
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| author | Ilknur ALIBAS |
| author_facet | Ilknur ALIBAS |
| contents | Convective, vacuum and microwave drying kinetics of mallow leaves and comparison of color and ascorbic acid values of three drying methods Ilknur ALIBAS Nezihe KÖKSAL Agrociencias color mallow Ascorbic acid vacuum drying microwave drying Mallow leaves (Malva sylvestris L.) with initial moisture of 5.02±0.003 on dry basis (82.5% on wet basis) were dried using three different drying methods, microwave, convective and vacuum. The leaves that weigh 75 g each were dried until their moisture fell down to 0.10±0.005 on dry basis (approximately 9% on wet basis). The following drying levels were used in each of the drying processes: 6.67, 8.67, 10, 11.33 W g–1 microwave power density; 50, 75, 100 and 125 °C for convective drying; and 3, 7 kPa at 50 and 75 °C for vacuum drying. Drying periods ranged from 6-10, 26-150 and 38-130 min. for microwave, convective and vacuum drying, respectively. Effective moisture diffisuvities ranged from 2.04403 10–10–3.63996 10–12 m2 s–1, 1.70182 10–11–1.10084 10–10 m2 s–1 and 1.85599 10–11–5.94559 10–10 m2 s–1 for microwave, convective and vacuum drying, respectively. According to ascorbic acid content and color parameters, the best microwave power density was found 10 W g–1 with a drying period of 6.5 min. 2014 artículo científico 0101-2061 https://www.redalyc.org/articulo.oa?id=395940095021 en http://www.redalyc.org/revista.oa?id=3959 Ciência e Tecnologia de Alimentos application/pdf Sociedade Brasileira de Ciência e Tecnologia de Alimentos Ciência e Tecnologia de Alimentos (Brasil) Num.2 Vol.34 |
| format | Artículo científico |
| id | redalyc_395940095021 |
| institution | Redalyc |
| language | en |
| publishDate | 2014 |
| publisher | Sociedade Brasileira de Ciência e Tecnologia de Alimentos |
| spellingShingle | Convective, vacuum and microwave drying kinetics of mallow leaves and comparison of color and ascorbic acid values of three drying methods Ilknur ALIBAS Agrociencias color mallow Ascorbic acid vacuum drying microwave drying Convective, vacuum and microwave drying kinetics of mallow leaves and comparison of color and ascorbic acid values of three drying methods Ilknur ALIBAS Nezihe KÖKSAL Agrociencias color mallow Ascorbic acid vacuum drying microwave drying Mallow leaves (Malva sylvestris L.) with initial moisture of 5.02±0.003 on dry basis (82.5% on wet basis) were dried using three different drying methods, microwave, convective and vacuum. The leaves that weigh 75 g each were dried until their moisture fell down to 0.10±0.005 on dry basis (approximately 9% on wet basis). The following drying levels were used in each of the drying processes: 6.67, 8.67, 10, 11.33 W g–1 microwave power density; 50, 75, 100 and 125 °C for convective drying; and 3, 7 kPa at 50 and 75 °C for vacuum drying. Drying periods ranged from 6-10, 26-150 and 38-130 min. for microwave, convective and vacuum drying, respectively. Effective moisture diffisuvities ranged from 2.04403 10–10–3.63996 10–12 m2 s–1, 1.70182 10–11–1.10084 10–10 m2 s–1 and 1.85599 10–11–5.94559 10–10 m2 s–1 for microwave, convective and vacuum drying, respectively. According to ascorbic acid content and color parameters, the best microwave power density was found 10 W g–1 with a drying period of 6.5 min. 2014 artículo científico 0101-2061 https://www.redalyc.org/articulo.oa?id=395940095021 en http://www.redalyc.org/revista.oa?id=3959 Ciência e Tecnologia de Alimentos application/pdf Sociedade Brasileira de Ciência e Tecnologia de Alimentos Ciência e Tecnologia de Alimentos (Brasil) Num.2 Vol.34 |
| title | Convective, vacuum and microwave drying kinetics of mallow leaves and comparison of color and ascorbic acid values of three drying methods |
| topic | Agrociencias color mallow Ascorbic acid vacuum drying microwave drying |
| url | https://www.redalyc.org/articulo.oa?id=395940095021 |