Abstract
Spirulina platensis is interesting for the food industry due to its overall composition and high content in Cphycocyanin.
However, the sensitivity of C-phycocyanin makes its extraction a delicate process. The present
study focuses on assessing the use of ohmic heating (OH) in the recovery of C-phycocyanin and other relevant
compounds as an alternative method to freeze-thawing or conventional heating. Different ohmic and conventional
heating treatments were applied both to purified C-phycocyanin and Spirulina powder. Evaluation of
fluorescence and circular dichroism showed that moderated electric fields increased C-phycocyanin stability.
This was confirmed in the extraction trials which revealed that OH assisted extraction at higher temperatures
(44 °C), and shorter times (30 min) allowed significant higher extraction yield of C-phycocyanin (45 mg/gdw
Spirulina), in comparison with conventional heating and freeze-thawing. OH allowed also up to 80% higher
yields in phenolic compounds and carbohydrates.
Lingua originale | English |
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pagine (da-a) | 109491-109491 |
Numero di pagine | 12 |
Rivista | LEBENSMITTEL-WISSENSCHAFT + TECHNOLOGIE |
DOI | |
Stato di pubblicazione | Pubblicato - 2020 |
Keywords
- Arthrospira platensis