Preparation and antioxidant activity of enzymatic hydrolysates from purple sea urchin (Strongylocentrotus nudus) gonad

Qin, Lei; Zhu, Bei Wei; Zhou, Da Yong; Wu, Hai; Tan, Hui; Yang, Jing; Li, Dong Mei; Xi, Dong; Murata, Yoshiyuki

doi:10.1016/j.lwt.2010.10.013

Cited by 76 publications

(49 citation statements)

References 35 publications

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“…In this field, our previous studies have successfully obtained protein hydrolysates from abalone (Haliotis discus hannai Ino) viscera and sea urchin (Strongylocentrotus nudus) gonads, which exhibited good antioxidant activities [17,18].…”

Section: Introductionmentioning

confidence: 99%

Functional properties of gelation-like protein hydrolysates from scallop (Patinopecten yessoensis) male gonad

Jin

Zhu

et al. 2012

Eur Food Res Technol

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Gelation-like protein hydrolysates from scallop (Patinopecten yessoensis) male gonad (SMG) were obtained by enzymatic hydrolysis using neutrase. Functional properties of SMG hydrolysates (SMGHs) with different degree of hydrolysis (DH: 4.94, 6.84, 7.53 and 11.86%, respectively) were evaluated with the objective to investigate the relations between hydrolysis characteristics and functionalities. The results showed that hydrolysis with neutrase improved the gelation property, solubility, waterholding capacity (WHC), oil-holding capacity (OHC), and surface hydrophobicity (SH), but not foaming capacity (FC) of SMG. The SMGHs at high DH (11.86%) showed better gelation property and solubility than that at low DH (4.94-7.53%). However, the maximum values of WHC, OHC, and SH of SMGHs were found at DH of 4.94%, significantly higher than (p \ 0.05) or equivalent to (p [ 0.05) that of soy protein isolate (SPI) for WHC and OHC. Emulsifying capacity of SMGHs is independent of DH, but restricted by pH environment. The emulsifying activity index of all SMGHs was significantly higher than that of SPI in pH 5 (p \ 0.05) and slightly higher than or equivalent to that of SPI in pH 7. Meanwhile, SMG and SMGHs were abundant in glycine, lysine, alanine, glutamic acid, and aspartic acid, containing all the essential amino acids (41.63-42.90% of the total amino acids). These results imply that SMGHs might be utilized as multifunctional and nutritive ingredients in food industry.

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Section: Introductionmentioning

confidence: 99%

Functional properties of gelation-like protein hydrolysates from scallop (Patinopecten yessoensis) male gonad

Jin

Zhu

et al. 2012

Eur Food Res Technol

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“…In recent years, peptides from many sources such as meat, food crops, and milk protein have been found to possess antioxidant activity (Kim et al, 2007;Qin et al, 2011).…”

Section: Physio-chemical Parameters Of the Selected Sequencesmentioning

confidence: 99%

Computational screening of microalgae and cyanobacteria RuBisCO as potential precursor for bioactive peptides

Selvaraj

Kaliamurthi

Çakmak

et al. 2017

Preprint

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Ribulose-1,5-bisphosphate carboxylase/oxygense (RuBisCO) is present in plants and autotrophic organisms like microalgae. The aim of this study was to perform an in silico evaluation of RuBisCo protein in microalgae and cyanobacteria as potential precursors of bioactive peptides, as well as to determine whether such peptides can be released by selected proteolytic enzymes. Fourteen RuBioCo sequences of microalgae and cyanobacteria were analysed by using the BIOPEP server amd database. The biological activity, enzyme action and calculation of active peptide tools were used to determine the frequency of occurrence of fragments, proteolysis, and the frequency of release of fragments with given activity by Dunaliella salina, Chlorella pyrenoidosa, and Chlorella vulgaris are associated with a high content of glycine and proline amino acids that are most rich in biologically active fragments.

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“…The DPPH radical scavenging activity of PPWP was evaluated according to the descriptions of Qin et al (2011) and Teng et al (2011) with slight modification. Briefly, 2 mL of PPWP was mixed thoroughly with 2 mL of 0.1 mM DPPH in ethanol, and kept in dark at room temperature for 30 min.…”

Section: Dpph Radical Scavenging Activity Assaymentioning

confidence: 99%

“…2 (continued) while the superoxide and hydroxyl radicals are watersoluble radical species and also been used widely to measure the antioxidant capacity of antioxidants (Luo et al 2013;Qin et al 2011). As shows in Fig.…”

Section: Antioxidant Activity Of Porcine Placenta Extractsmentioning

confidence: 99%

Optimization of ultrasound-assisted-extraction of porcine placenta water-soluble proteins and evaluation of the antioxidant activity

2014

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Porcine placenta is commonly used in Chinese as a traditional medicine. It has been reported by a number of researchers that the porcine placenta contains many compounds which have good health benefits. Response surface methodology (RSM) was applied to optimize the parameters of ultrasound power, ultrasound treat time, and extraction temperature on the extraction yield of porcine placenta water-soluble proteins (PPWP). The results indicated that, under optimum conditions of ultrasound power 257 w, extraction temperature at 49°C for 7 min, the extraction yield of PPWP was 32.7 %, which was significantly higher than that of the conventional extraction method (CEM) of 15.0 %. The experimental data were fitted to a second-order polynomial equation using multiple regression analysis and the estimated model showed a high capacity of predicting the dependent variables. Although not significantly, the antioxidant activity of PPWP from ultrasound-assist-extraction (UAE) were higher than those from CEM, indicated that UAE had a positive effect or at least no negative effect on the bioactivity of PPWP.

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Preparation and antioxidant activity of enzymatic hydrolysates from purple sea urchin (Strongylocentrotus nudus) gonad

Cited by 76 publications

References 35 publications

Functional properties of gelation-like protein hydrolysates from scallop (Patinopecten yessoensis) male gonad

Functional properties of gelation-like protein hydrolysates from scallop (Patinopecten yessoensis) male gonad

Computational screening of microalgae and cyanobacteria RuBisCO as potential precursor for bioactive peptides

Optimization of ultrasound-assisted-extraction of porcine placenta water-soluble proteins and evaluation of the antioxidant activity

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