Journal
FOOD CHEMISTRY
Volume 429, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2023.136843
Keywords
Phaeodactylum tricornutum; Spirulina platensis; Salt stress; Drying; Quality; Aroma
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This study investigated the effects of different salt concentrations on the growth, aroma, and quality parameters of P. tricornutum and S. platensis for the first time. The results showed that the content of aroma compounds, amino acids, sugars, and organic acids decreased significantly with increasing salt concentration. These findings are valuable for producing high-quality and flavorful P. tricornutum and S. platensis products.
The effects of different salt concentrations on the growth, aroma and quality parameters of P. tricornutum and S. platensis were investigated for the first time.Salt contents were 15, 25, 30 and 35%o for the P. tricornutum and 20, 25, 30 and 35%o for the S. platensis culture. Aroma compounds were analyzed by HS-SPME-GC/MS while the organic acid and sugar composition were studied by HPLC-PDA-RID.The main amino acids were glutamic acid (6.24-12.96 mg/100 g) and alanine (3.67-13.65 mg/100 g) while the prevailing sugars were sucrose (229-1099 mg/100 g) and glucose (192-2322 mg/100 g) in the P. tricornutum and S. platensis samples.The most prevailing aroma compound was acetic acid (113 & mu;g/kg) in the P. tricornutum samples and heptadecane (36941 & mu;g/kg) in the S. platensis samples.A significant reduction was found in the amount of aroma compounds, amino acids, sugars and organic acids with increasing salt concentration.The study results are valuable for producing highquality and flavorful P. tricornutum and S. platensis products.
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