Document Type

Article

Disciplines

3. MEDICAL AND HEALTH SCIENCES

Publication Details

https://link.springer.com/article/10.1007/s10811-023-03076-y

Gomez Barrio, L.P., Pradhan, D., Tiwari, U. et al. Pressure-based method for the extraction and characterisation of agar from Gelidium sesquipedale. J Appl Phycol 35, 2473–2483 (2023).

https://doi.org/10.1007/s10811-023-03076-y

Abstract

Agar has been widely used in the food, pharmaceutical and medical fieldsand has been traditionally extracted by soaking the macroalgae for up to 4 h at boiling temperatures. Traditional methods are often energy intensive and therefore extraction technologies are currently being investigated in order to pursue more sustainable form of extraction. This study focused on the extraction of agar from Gelidium sesquipedale by means a combination of an acid pre-treatment (citric or acetic acid) followed by autoclaving at different time/temperature combinations. It was found that among all the conditions tested (10, 15 and 20 min) and (100, 110, and 120 °C), the best condition was (20 min, 110 °C) by means of a citric acid pre-treatment, reporting a yield of 31.69 ± 3.5% (g extract per g dried G. sesquipedale), and a gel strength of 183.78 ± 36.80 g cm−2.

DOI

https://doi.org/10.1007/s10811-023-03076-y

Funder

This work was supported by the European Union Horizon 2020 project BIOCARB-4-FOOD [grant number: 17RDSUSFOOD2ERA-NET1]

Creative Commons License

Creative Commons Attribution-Share Alike 4.0 International License
This work is licensed under a Creative Commons Attribution-Share Alike 4.0 International License.

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