The Influence of Polyols on the Process Kinetics and Bioactive Substance Content in Osmotic Dehydrated Organic Strawberries
| Autor: | Dorota Witrowa-Rajchert, Magdalena Trusinska, Artur Wiktor, Małgorzata Nowacka, Katarzyna Rybak, Magdalena Dadan |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: |
Osmosis
Sucrose Dehydration Dose-Response Relationship Drug Polymers Organic Chemistry Phytochemicals Pharmaceutical Science Polyphenols strawberry osmotic dehydration polyols polyphenols antioxidants vitamin C anthocyanins sugar profile colour structure Fragaria Analytical Chemistry Kinetics Food systems Chemistry (miscellaneous) Food security food quality and human health Fruit Drug Discovery Molecular Medicine Physical and Theoretical Chemistry Processing packaging and transportation |
| Zdroj: | Molecules; Volume 27; Issue 4; Pages: 1376 |
| DOI: | 10.3390/molecules27041376 |
| Popis: | In recent years, an increasing interest in reducing sugar consumption has been observed and many studies are conducted on the use of polyols in the osmotic dehydration process to obtain candied or dried fruits. The studies in the literature have focused on the kinetics of the process as well as the basic physical properties. In the scientific literature, there is a lack of investigation of the influence of such polyol solutions such as sorbitol and mannitol used as osmotic substances during the osmotic dehydration process on the contents of bioactive components, including natural colourants. Thus, the aim of the study was to evaluate the impact of polyols (mannitol and sorbitol) in different concentrations on the process kinetics and on chosen physical (colour and structural changes) as well as chemical (sugars and polyol content, total anthocyanin content, total polyphenol content, vitamin C, antioxidant activity) properties of osmotic-dehydrated organic strawberries. Generally, the results showed that the best solution for osmotic dehydration is 30% or 40% sorbitol solutions, while mannitol solution is not recommended due to difficulties with preparing a high-concentration solution and its crystallization in the tissue. In the case of sorbitol, the changes of bioactive compounds, as well as colour change, were similar to the sucrose solution. However, the profile of the sugar changed significantly, in which sucrose, glucose, and fructose were reduced in organic strawberries and were partially replaced by polyols. |
| Databáze: | OpenAIRE |
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