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- 검색키워드
- 저자 : Tanaji G. Kudre (검색결과 2 건)
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Balaji Wamanrao Kanwate,Tanaji G. Kudre 한국식품과학회 2022 Food Science and Biotechnology Vol.31 No.10
Influences of different extraction temperatures (50, 60, and 70 °C) and time (3, 6, and 9 h) on yield, physicochemical, and functional properties of gelatin from swim bladder (SBG) of rohu (Labeo rohita) were investigated. Gelatin extracted at 60 °C (G60-9 h), and 70 °C (G70-9 h) temperature for 9 h showed highest gelatin yield 54.91 g/100 g, protein (92.35 g/100 g), and hydroxyproline (77.50 mg/g) content (P < 0.05) compared to other counterparts. All extracted gelatin showed major protein components as α-, β-, and γ-chain with slight changes in band intensity. FTIR spectra showed significant loss of molecular order of triple-helix as temperature and time increased. Furthermore, G60-9 h exhibited higher emulsion, foaming, and gel strength than G70-9 h, and G50-9 h, respectively (P < 0.05). Therefore, G60-9 h could be appropriate conditions for the extraction of SBG with better yield, physicochemical, and functional properties.
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Aliaa M. A. Hashem,Anushma Venmarath,Tanaji G. Kudre 한국식품과학회 2023 Food Science and Biotechnology Vol.32 No.14
The current study investigates the preparation, purification, and identification of novel antioxidant peptides from Piaractus brachypomus fish (RBPF) meat. Antioxidant peptides from RBPF meat protein hydrolysate (RPMPH) were fractionated by ultrafiltration (3 kDa MWCO membrane). RPMPH-IF (MW < 3 kDa) fraction displayed significantly higher antioxidant activities (P < 0.05) (DPPH, ABTS, FRAP, and Fe2+chelating activity). RPMPH-IF was purified by Sephadex G-25 gel filtration chromatography, and the RPMPH-1 fraction exhibited significantly higher antioxidant activities (P < 0.05). Subsequently, the RPMPH-1 fraction was purified by reversed-phase high-performance liquid chromatography. RPH-8 showed the highest antioxidant activities. The sequence of peptides of the RPH-8 fraction was later identified by LC-MS/MS and MASCOT software. RPH-8 fraction showed the two peptides with MW of 1105.52 Da and 748.25 Da, and the sequence of peptides was identified as His–Asn–Leu–Gly–Leu–Leu–His–Gly–Asp–Met and Asp–Ala–Pro–Ser–Met–Asn–Asp, respectively. Thus, RPMPH or purified antioxidant peptides produced by probiotic Bacillus strain could be a bio-functional ingredient in food and nutraceutical applications.
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