Technological improvement of the Sorghum saccharatum syrup production by membrane technologies
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Date
2022
Authors
Chibrikov, Vadym
Vakuliuk, Polina
Hryhorenko, Nataliia
Gunko, Sergiy
Sobczuk, Henryk
Journal Title
Journal ISSN
Volume Title
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Abstract
Easy-to-handle and effective methods of juice clarification and concentration by membrane technologies are still under exploration. The current article presents results of research on the technological development of an alternative natural sweetener of high biological value and improved organoleptic properties. Sorghum saccharatum stem juice is used in research. It is pre-clarified enzymatically with α-amylase and glucoamylase, clarified by ultrafiltration, and concentrated by the direct contact membrane distillation in various temperature ranges. The study shows the efficacy of membrane methods for improving juice purity, total soluble solids (TSS), and total sugar (TS) content in the syrup obtained. Clarification depends on membrane characteristics at the beginning of the process, as there are no differences at the end of it. Juice concentration at high-temperature differences allows to accelerate the process by approx. 60% comparing to low-temperature differences. A lower temperature difference (ΔТ = 20–30°С) in the concentration process results in a longer process and syrup acidisation, whereas a higher temperature difference (ΔТ = 70°С) affects physicochemical properties of syrup due to local overheating and formation of Maillard reaction products. The juice concentration at ΔТ = 50–60°С allows to obtain high values of total soluble solids without significant degradation of physicochemical and organoleptic properties.
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Keywords
juice clarification, juice concentration, membrane distillation, Sorghum saccharatum, sweet sorghum syrup, ultrafiltration, article
Citation
Technological improvement of the Sorghum saccharatum syrup production by membrane technologies / Vadym Chibrikov, Polina Vakuliuk, Nataliia Hryhorenko, Sergiy Gunko, Henryk Sobczuk // Journal of Water and Land Development. - 2022. - No. 54 (VII–IX). - P. 131-137. - https://doi.org/10.24425/jwld.2022.141564