Bioactivity Screening of Hydrolysates From Brown Crab Processing Side Streams Fermented by Marine Pseudoalteromonas Strains

Zou, Yang; Tortorella, Emiliana; Robbens, Johan; Heyndrickx, Marc; Debode, Jane; Pascale, Donatella de

doi:10.1007/s12649-020-01195-y

Cited by 5 publications

(3 citation statements)

References 51 publications

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“…Looking at the degrees of hydrolysis, the two strains of Y. lipolytica were the best-performing ones. The values obtained are in line with the data reported by Zou et al [43] when brown crab processing side streams were fermented with Pseudoalteromonas strains after 72 h. In our case, the two yeasts strains performed better than the two bacteria strains. The use of Y. lipolytica to produce protein hydrolysates for fish waste has never been reported.…”

Section: Discussionsupporting

confidence: 92%

“…To some extent, the higher antioxidant activity of the fresh samples was correlated with the higher degree of hydrolysis and peptide content present in those samples. This aspect has been reported in several publications where protein hydrolysates are assessed for their radical scavenging activity [43,[48][49][50]. Surprisingly, B. subtilis B5C, which showed a lower degree of hydrolysis and a lower peptide content, formed hydrolysates with a good radical scavenging activity.…”

Section: Discussionmentioning

confidence: 62%

“…The 4 proteolytic and lipolytic microorganisms were then tested in a fish waste solution as substrates. As already performed by Zou et al [43], samples were incubated for 72 h in order to observe differences in hydrolysis. All the tested strains grew in the fish waste solution with B5M, B5C, and YL4 increasing by around 2.2 log CFU/mL, while YL2 increased by 3.1 log CFU/mL.…”

Section: Discussionmentioning

confidence: 99%

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Use of Yarrowia lipolytica to Obtain Fish Waste Functional Hydrolysates Rich in Flavoring Compounds

et al. 2022

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Fishery processing industries generate large amounts of by-products. These by-products come from fish heads, skin, bones, thorns, and viscera. The disposal of these wastes represents an increasing environmental and health problem. Nowadays, there is a growing interest in how to utilize fish materials that are not used for human consumption. Among the different solutions proposed, the use of proteolytic and lipolytic microorganisms represents a green solution for waste valorization. In this work, first we screened several conventional and non-conventional microorganisms for their proteolytic and lipolytic functions. Then, the most promising strains (Yarrowia lipolytica YL2, Y. lipolytica YL4, Bacillus amyloliquefaciens B5M and B. subtilis B5C) were tested on a fish waste-based solution. After 72 h incubation at room temperature, the supernatants obtained using the strains of Y. lipolytica showed the highest degree of hydrolysis (10.03 and 11.80%, respectively, for YL2 and YL4), the strongest antioxidant activity (86.4% in DPPH assay for YL2) and the highest formation of aldehydes (above 50% of the total volatile compounds detected). Hydrolysates of fish waste obtained with Y. lipolytica may be reused in feed and food formulations for their functional and flavoring characteristics.

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Section: Discussionsupporting

confidence: 92%