Akademik Veri Yönetim Sistemi
37th EFFoST International Conference 2023, Valencia, İspanya, 6 - 08 Kasım 2023, ss.469, (Özet Bildiri)
Aim: Sesame seed is considered as a high nutritious crop that contains significant amount of protein and oil. The main objective of this study is to produce a free-flowing sesame powder from sesame seed by using high pressure homogenizer (HPH) followed by freeze drying. During the production of the powder, oil is not removed and the protein in the sesame seed acts as a coating material to encapsulate the oil in the seed. Method: In this study, 2 different sesame seeds were used. HPH was used at 2 different pressure values (600 and 1200 bar) and 2 passes to reduce the oil droplet sizes and to obtain a self-encapsulated sesame powder. Before using high pressure homogenizer, sesame seeds were mixed with water and passed through a colloidal mill. After passing through HPH, the suspension was dried with a freeze dryer and ground afterwards. Sesame directly lyophilized followed by grinding without any other processes was used as the control group. Surface oil content, flowability and TD-NMR experiments were performed (at a 1H frequency of 20.34 MHz) to compare the homogenized and unhomogenized sesame powder samples. Also, microstructures of the powders were analyzed with scanning electron microscopy (SEM). Result: Free flowing sesame powders were produced by using HPH. The results obtained from SEM analysis showed that microstructure of homogenized and unhomogenized sesame powders were different. Homogenized powders had smaller oil droplet as expected. T2 relaxation times showed the presence of multiple proton populations which could have associated with the different oil states in the sample. Seed type also was shown to have an effect on the final properties of the powders. Conclusion: A free flowing, encapsulated sesame seed powder with its own protein as the coating material was obtained. The powder can be used as a novel ingredient in different food formulations.