Antioxidant properties of fractions isolated from blue shark (Prionace glauca) skin gelatin hydrolysates

Purification and identification of antioxidant peptides from gelatin hydrolysate of seabass skin

“…Kittiphattanabawon, Benjakul, Visessanguan, and Shahidi () reported that gelatin hydrolysates from blacktip shark skin prepared using a papaya latex enzyme contained antioxidant peptides with a MW of 644 Da. Peptides from blue shark skin gelatin with MWs ranging from 150 to 2,000 Da possessed strong antioxidant activity (Weng et al, ). The MW of antioxidant peptides of gelatin hydrolysate from tilapia skin prepared using enzymes including properase E and multifect neutral were 317 and 645 Da, respectively (Zhang, Duan, & Zhuang, ).…”

“…As fraction 12 and 16 had different retention times as well as antioxidant activity, it is likely that these fractions contained different peptides with varying amino acids sequences. Weng et al () used RP‐HPLC with a C18 column to separate antioxidant peptides from gelatin hydrolysates of shark skin. Those fractions were collected and further subjected to UPLC‐ESI‐MS/MS analysis to identify the most potent antioxidant peptides.…”

Preparation and bioavailability of calcium‐chelating peptide complex from tilapia skin hydrolysates

“…The gelatin hydrolysates from tilapia skins were prepared according to the method reported by Weng et al . with slight modification.…”

“…The molecular weight distribution profile of CPC was determined according to the method reported by Weng et al . using an Agilent 1200 HPLC system (Agilent Technologies).…”

Antioxidant properties of carp (Cyprinus carpio L.) protein ex vivo and in vitro hydrolysates

“…He et al (2013) reported that fractionation into the <1 kDa peptides of rapeseed protein hydrolysates improved DPPH and superoxide scavenging properties when compared to the unfractionated protein hydrolysates. The study on blue shark (Prionace glauca) skin gelatin hydrolysates indicated that the dipeptide GY and tyrosine were important for the antioxidant activities of hydrolysate and its fractions (Weng et al, 2014). Malaypally et al (2014) concluded that the presence of bioactive peptides with desired amino acid sequence in silver carp protein hydrolysates fractions may have contributed to their higher cellular antioxidant activity.…”