Hydrolysis technology of biomass waste to produce amino acids in sub-critical water

Cheng, Honghui; Zhu, Xun; Zhu, Chao; Qian, Jing; Zhu, Ning; Zhao, Lanbo; Chen, Jinyang

doi:10.1016/j.biortech.2007.08.024

Cited by 78 publications

(45 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The yield of tryptophan in the heat-dried squid viscera hydrolysates was 11.61 ± 0.06 mg/100 g of free amino acids. At temperature ≥ 160°C, the individual amino acid levels decreased gradually and very low was at 280 o C. Cheng et al (2008) and Uddin et al (2010) reported that the yields of most amino acids were maximum at reaction temperatures of 180 to 220°C and 200 to 290°C. The difference compared to our results may be due to the different sample processing and experimental conditions.…”

Section: Composition Of Heat-dried Squid Visceramentioning

confidence: 98%

“…The conversion yield of squid viscera, X, was calculated a wide range of organic compounds, yielding many valuable materials (Yoshii et al, 2001;Laria et al, 2004;Tomita and Oshima, 2004;Yagasaki et al, 2005). Hydrolysis in subcritical water does not cause pollution and is thus an environmentally friendly technology (Cheng et al, 2008). The economic and ecological importance of thermal protein hydrolysis is increasing.…”

Section: Subcritical Water Hydrolysis (Swh)mentioning

confidence: 99%

See 1 more Smart Citation

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

View full text Add to dashboard Cite

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.

show abstract

Section: Composition Of Heat-dried Squid Visceramentioning

confidence: 98%

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

View full text Add to dashboard Cite

show abstract

“…After increasing the temperature at 250°C, the individual amino acids were decreased. Cheng et al (2008); Uddin et al (2010) reported that most of amino acids gave maximum yield at the reaction temperature range of 180 to 220°C and 200 to 290°C. It may be differ due to the different sample sources, processing and experimental operational conditions.…”

Section: Sds-pagementioning

confidence: 99%

“…Most of biomass is easily hydrolyzed in super or subcritical water which is structurally different from normal water. 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).…”

Section: Introductionmentioning

confidence: 99%

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

Asaduzzaman

Chun

2013

J Food Sci Technol

View full text Add to dashboard Cite

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.

show abstract

“…For example, the dielectric constant of water at room temperature is 80, which can be changed to 27 by heating at 250°C, but the liquid state can be maintained by manipulating pressure (Carr et al 2011). Hydrolysis in subcritical water is environment friendly technology as it is free of environmental pollution (Cheng et al 2008). At present, sub-critical water hydrolysis attracted attention for hydrolysis and conversion of biomass to useful compounds (Kruse and Gawlik 2003;Bicker et al 2005;Uddin et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Physical and functional properties of tunicate (Styela clava) hydrolysate obtained from pressurized hydrothermal process

et al. 2017

View full text Add to dashboard Cite

In this study, marine tunicate Styela clava hydrolysate was produced by an environment friendly and green technology, pressurized hot water hydrolysis (PHWH) at different temperatures (125-275°C) and pressure 50 bar. A wide range of physico-chemical and bio-functional properties such as color, pH, protein content, total carbohydrate content, reducing sugar content, and radical scavenging activities of the produced hydrolysates were evaluated. The appearance (color) of hydrolysates varied depending on the temperature; hydrolysates obtained at 125-150°C were lighter, whereas at 175°C gave reddish-yellow, and 225°C gave dark brown hydrolysates. The L* (lightness), a* (red-green), and b* (yellow-blue) values of the hydrolysates varied between 35.20 and 50.21, −0.28 and 9.59, and 6.45 and 28.82, respectively. The pH values of S. clava hydrolysates varied from 6.45 (125°C) to 8.96 (275°C) and the values were found to be increased as the temperature was increased. The hydrolysis efficiency of S. clava hydrolysate was ranged from 46.05 to 88.67% and the highest value was found at 250°C. The highest protein, total carbohydrate content, and reducing sugar content of the hydrolysates were found 4.52 mg/g bovine, 11.48 mg/g and 2.77 mg/g at 175, and 200 and 200°C, respectively. Hydrolysates obtained at lower temperature showed poor radical scavenging activity and the highest DPPH, ABTS, and FRAP activities were obtained 10.25, 14.06, and 10.91 mg trolox equivalent/g hydrolysate (dry matter basis), respectively. Therefore, S. clava hydrolysate obtained by PHWH at 225-250°C and 50 bar is recommended for bio-functional food supplement preparation.

show abstract

Hydrolysis technology of biomass waste to produce amino acids in sub-critical water

Cited by 78 publications

References 8 publications

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

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

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

Physical and functional properties of tunicate (Styela clava) hydrolysate obtained from pressurized hydrothermal process

Contact Info

Product

Resources

About