Physicochemical and nutraceutical properties of tomato powder as affected by pretreatments, drying methods, and storage period
| Autor: | Saqib Farooq, Sajad A. Rather, Amir Gull, Shaiq Ahmad Ganai, F.A. Masoodi, Sajad Mohd Wani, Tariq Ahmad Ganaie |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | International Journal of Food Properties, Vol 23, Iss 1, Pp 797-808 (2020) |
| Druh dokumentu: | article |
| ISSN: | 1094-2912 1532-2386 10942912 |
| DOI: | 10.1080/10942912.2020.1758716 |
| Popis: | This study was carried out to evaluate the effect of different pre treatments, drying methods, and storage period on physicochemical and nutraceutical properties of tomato powder. The results revealed that freeze-dried tomato powder showed significantly (p .05) between hot-air- and freeze-dried samples. Comparing the different pretreatments sodium metabisulphite 1% treated sample (T2) showed highest total sugar, reducing sugar, rehydration ratio, TSS (oBx), lightness (L*), redness (a*) and yellowness (b*) values than non-pretreated samples (T0) and 0.5% ascorbic acid + 0.5% citric acid-treated samples (T1). While T1 showed the highest ascorbic acid, lycopene, and β-carotene contents than T2 and T0. The results obtained indicated that TSS (oBx), pH, total sugar, reducing sugar, rehydration ratio, ascorbic acid, β-carotene, lycopene, and color parameters (L*, a,* and b*) of both freeze-dried and hot-air dried powdered samples showed decreasing trend, while moisture and titratable acidity showed an increasing trend with the advancement of storage period from 0 to 30 days. |
| Databáze: | Directory of Open Access Journals |
| Externí odkaz: |
|