Conversion of scallop viscera wastes to valuable compounds using sub-critical water

Tavakoli, Omid; Yoshida, Hiroyuki

doi:10.1039/b507441j

Cited by 51 publications

(32 citation statements)

References 31 publications

(38 reference statements)

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“…Among the all hydrolyzate samples, hydrolyzates at 220°C was found more low MW peptide band and after increasing the temperature peptide band was decreased. Similar observations have been reported in scallop viscera waste (Tavakoli and Yoshida 2006).…”

Section: Sds-pagesupporting

confidence: 78%

“…After increasing the temperature, the protein yield was decreased. Simillar pattern was observed in scallop waste, soybean and freeze dried squid viscera (Tavakoli and Yoshida 2006;Watchararuji et al 2008;Uddin et al 2010). This may suggest that protein molecules were decomposed to water soluble low molecular weight organic compound at elevated temperature.…”

Section: Discussionmentioning

confidence: 99%

“…Without any pollution, hydrolysis in subcritical water is environment friendly technology (Cheng et al 2008). Recently growing attention has led to extensive research activities using subcritical water for hydrolysis and conversion of biomass to useful compounds (Yoshida et al 1999;Kruse and Gawlik 2003;Bicker et al 2005;Tavakoli and Yoshida 2006;Salak Asghari and Yoshida 2007;Uddin et al 2010). The thermal protein hydrolysis is gaining in importance in economical as well as ecological aspects.…”

Section: Introductionmentioning

confidence: 99%

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Recovery of functional materials with thermally stable antioxidative properties in squid muscle hydrolyzates by subcritical water

Asaduzzaman

Chun

2013

J Food Sci Technol

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Subcritical water hydrolysis was carried out to produce functional materials from squid muscle using a batch reactor. The reaction temperatures and pressures for hydrolysis of thermal dried squid muscle were maintained from 160 to 280°C and 6 to 66 bar for 3 min. The ratio of material to water for hydrolysis was 1:25 (w/v) and it was stirred at 140 rpm. Hydrolysis yield was increased after increasing the temperature and pressure while the protein in hydrolyzate decreased with the rise of temperature. The reducing sugar yield was high at temperature 220°C in subcritical water hydrolysis of squid muscle. Low molecular weight peptides were found in all hydrolyzates by SDS-PAGE. The highest yield of free and structural amino acid in hydrolyzate was 421.53±1.24 and 380.58±2.25 mg/100 g, respectively at 250°C. All essential amino acids were identified in muscle hydrolyzates and it was high at 220°C. Among the essential amino acids, leucine was the most abundant. Antioxidative properties were found in all hydrolyzates and it was high at 220°C. More than 98±0.26 % ABTS antioxidant activity was retained in hydrolyzates after long time heat treatment.

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Section: Sds-pagesupporting

confidence: 78%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Recovery of functional materials with thermally stable antioxidative properties in squid muscle hydrolyzates by subcritical water

Asaduzzaman

Chun

2013

J Food Sci Technol

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“…As the temperature increased, the protein yield decreased. Similar patterns were reported for scallop waste, soybean and freeze-dried squid viscera (Tavakoli and Yoshida, 2006;Watchararuji et al, 2008;Uddin et al, 2010). This suggests that protein molecules decompose to water-soluble low MW organic compounds at elevated temperatures.…”

Section: Protein Yield In Hydrolysatesupporting

confidence: 65%

“…Useful materials, such as amino acids, organic acids, fatty acids, and other materials, can be produced from fish waste by subcritical water hydrolysis (Yoshida et al, 2003;Tavakoli and Yoshida, 2006).…”

Section: Subcritical Water Hydrolysis (Swh)mentioning

confidence: 99%

Stability of Antioxidant Properties and Essential Amino Acids in Squid Viscera Hydrolysate Produced using Subcritical Water

Kim¹,

Asaduzzaman²,

You³

et al. 2013

Fisheries and aquatic sciences

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Subcritical water hydrolysis was carried out in a batch reactor to produce valuable materials, such as low-molecular weight (MW) peptides and essential amino acids with antioxidant properties, from heat-dried squid viscera. Hydrolysis of squid viscera was performed at 160 to 280°C for 3 min. The yield was increased by increasing the temperature and pressure, while the protein content of squid viscera hydrolysate decreased with increasing temperature. Low-MW peptides were detected in all hydrolysates by sodium dodecyl sulfate polyacrylamide gel electrophoresis. The highest yields of free and structural amino acids in heat-dried squid viscera hydrolysate were at 160°C and were 411.95 ± 1.15 and 346.62 ± 1.25 mg/100 g, respectively. All essential amino acids were detected in viscera hydrolysates; leucine was the most abundant. Antioxidant activities of hydrolysates were highest at 220°C. Greater than 98 ± 0.26% of the ABTS antioxidant activity was retained in hydrolysates after long-term heat treatment.

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Comparative studies on the lipid profiles of female and male gonads of abalone (Haliotis discus hannai)

Wang,

Liu,

Liu

et al. 2023

Euro J Lipid Sci & Tech

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Lipid profiles of the lipids from female gonads (LFG) and male gonads (LMG) of abalones (Haliotis discus hannai) were evaluated based on the analysis of phospholipid (PL) molecular species, PL class composition, fatty acid (FA) composition, and lipid class composition. These results suggested that lipids from abalone gonads were abundant in omega‐3 polyunsaturated FA (n − 3 PUFA, 14.42%–18.27% of total FAs) and PLs including phosphatidylcholine (PC, 21.26–47.85 mg g−1) and phosphatidylethanolamine (PE, 9.29–24.10 mg g−1). Furthermore, more than 60 molecular species of PC and PE were determined. Particularly, the molecular species containing n − 3 PUFA including eicosapentaenoic acid (EPA) constituted majority of PC and PE in LFG and LMG. By contrast, LFG contained more PC and PE species containing EPA. Considering the lipid profiles, abalone gonads are a potential source of PL‐form n − 3 PUFA.

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Conversion of scallop viscera wastes to valuable compounds using sub-critical water

Cited by 51 publications

References 31 publications

Recovery of functional materials with thermally stable antioxidative properties in squid muscle hydrolyzates by subcritical water

Recovery of functional materials with thermally stable antioxidative properties in squid muscle hydrolyzates by subcritical water

Stability of Antioxidant Properties and Essential Amino Acids in Squid Viscera Hydrolysate Produced using Subcritical Water

Comparative studies on the lipid profiles of female and male gonads of abalone (Haliotis discus hannai)

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