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| Yaghoubi, Marjan; Askari, Bijan; Mokhtarian, Mohsen; Tavakolipour, Hamid; Elhami Rad, Amirhosein; Jafarpour, Afshin; Heidarian, Soodabeh. |
| Potato cubes were dried by different drying methods. After the end of drying process, the experimental data were first fitted to the four well-known drying models. The results indicated that the logarithmic and page models performed better compared with the other models. Also, in this study neural networks were used in order to possibly predict dried potato moisture ratio (y), based on three input variables of drying time, drying temperature and different methods. The results revealed that, logsig function based on 10 neurons in the first hidden layer could perform as the best goodness configuration for predicting the moisture ratio. The comparison of the obtained results of ANNs and classical modeling indicated that, the neural networks have a higher... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Extraction kinetics; Time constant; Extract concentration; Extraction yield; Medicinal herbs. |
| Ano: 2013 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2590 |
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| Pedriali,Carla Aparecida; Fernandes,Adjaci Uchoa; Santos,Patricia Araujo dos; Silva,Moisés Melquíades da; Severino,Divinomar; Silva,Mauricio Baptista da. |
| In the present work, a hydroethanolic extract was prepared from the entire seeds of pomegranate [Punica granatum L. (Punicaceae)] with Cachaça, a distilled Brazilian alcoholic beverage, protected from light for an 80-hour period. The desorption curve of the seeds, presented an optimal time extraction of approximately 24 hours. The extract was divided into two samples: protected from light, (Extract 1), or not, (Extract 2). The extracts were characterized by UV-Visible absorption spectroscopy, quantification of total phenolics by the Folin-Ciocalteu method, and the antioxidant activity was determined by the DPPH quenching method. Extract 2 presented 9.8% less total polyphenols than Extract 1. The pomegranate seeds extract lost 79% of its antioxidant... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pomegranate; Extraction kinetics; Cachaça; Antioxidant. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612010000400028 |
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