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Venmarath A, Karkal SS, Suresh PV, Kudre TG. Extraction optimization, partial purification, and characterization of sialoglycoproteins from Labeo rohita roes. Int J Biol Macromol 2024; 274:133462. [PMID: 38942403 DOI: 10.1016/j.ijbiomac.2024.133462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Revised: 05/27/2024] [Accepted: 06/25/2024] [Indexed: 06/30/2024]
Abstract
In India, fish roes are generally considered worthless garbage and disposed of without recovering the valuable molecules, creating environmental and disposal problems. The present investigation aimed to optimize the extraction conditions, partial purification, and characterization of sialoglycoproteins (RRSGP) from Labeo rohita (rohu) roes. RSM generated optimum conditions for maximum RRSGP (70.49 %) extraction, which were 1.25 M NaCl, 1:32.5(w/v) solid-to-liquid ratio, 47.5 °C temperature, and 3 h time. Further, sialoglycoproteins from RRSGPs were partially purified, and result revealed that obtained peak-1 (PRRSGP) using QFF anion exchange chromatography exhibited higher glycoprotein and sialic acid content (p < 0.05). SDS-PAGE pattern of PRRSGP presented dominant bands of 97 kDa and 27 kDa glycoproteins. FTIR spectrum of PRRSGP confirmed the presence of glycated proteins. HPLC analysis revealed that PRRSGP consists of Neu5Ac. Furthermore, β-elimination reaction elucidated that PRRSGP contained N-glycosidic linkage. PRRSGP exhibited tyrosine and glutamate as primary amino acids. Glycan part of PRRSGP presented mannose and N-acetyl galactosamine as dominant neutral and amino sugar, respectively. Furthermore, PRRSGP exhibited antioxidant activity with EC50 value for DPPH (8.79 mg/ml) and ABTS (2.21 mg/ml). Besides, RRSGP displayed better protein solubility, foaming, and emulsion properties. Therefore, rohu roes are potential source of sialoglycoproteins that can be recovered and used as bio-functional ingredients in food and nutraceutical applications.
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Affiliation(s)
- Anushma Venmarath
- Meat and Marine Sciences Department, CSIR-Central Food Technological Research Institute, Mysuru 570 020, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
| | - Sandesh Suresh Karkal
- Meat and Marine Sciences Department, CSIR-Central Food Technological Research Institute, Mysuru 570 020, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
| | - P V Suresh
- Meat and Marine Sciences Department, CSIR-Central Food Technological Research Institute, Mysuru 570 020, India
| | - Tanaji G Kudre
- Meat and Marine Sciences Department, CSIR-Central Food Technological Research Institute, Mysuru 570 020, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India.
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Zhu Y, Hong N, Zhao L, Liu S, Zhang J, Li M, Ma Y, Liang D, Zhao G. Effect of Molecular Weight on the Structural and Emulsifying Characteristics of Bovine Bone Protein Hydrolysate. Foods 2023; 12:4515. [PMID: 38137319 PMCID: PMC10743285 DOI: 10.3390/foods12244515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 12/09/2023] [Accepted: 12/13/2023] [Indexed: 12/24/2023] Open
Abstract
The emulsifying capacity of bovine bone protein extracted using high-pressure hot water (HBBP) has been determined to be good. Nevertheless, given that HBBP is a blend of peptides with a broad range of molecular weights, the distinction in emulsifying capacity between polypeptide components with high and low molecular weights is unclear. Therefore, in this study, HBBP was separated into three molecular weight components of 10-30 kDa (HBBP 1), 5-10 kDa (HBBP 2), and <5 kDa (HBBP 3) via ultrafiltration, and the differences in their structures and emulsifying properties were investigated. The polypeptide with the highest molecular weight displayed the lowest endogenous fluorescence intensity, the least solubility in an aqueous solution, and the highest surface hydrophobicity index. Analysis using laser confocal Raman spectroscopy showed that with an increase in polypeptide molecular weight, the α-helix and β-sheet contents in the secondary structure of the polypeptide molecule increased significantly. Particle size, rheological characteristics, and laser confocal microscopy were used to characterize the emulsion made from peptides of various molecular weights. High-molecular-weight peptides were able to provide a more robust spatial repulsion and thicker interfacial coating in the emulsion, which would make the emulsion more stable. The above results showed that the high-molecular-weight polypeptide in HBBP effectively improved the emulsion stability when forming an emulsion. This study increased the rate at which bovine bone was utilized and provided a theoretical foundation for the use of bovine bone protein as an emulsifier in the food sector.
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Affiliation(s)
- Yaodi Zhu
- College of Food Science and Technology, Henan Agricultural University, Zhengzhou 450002, China; (Y.Z.); (N.H.); (L.Z.); (S.L.); (J.Z.); (Y.M.); (D.L.); (G.Z.)
- International Joint Laboratory of Meat Processing and Safety in Henan Province, Henan Agricultural University, Zhengzhou 450002, China
| | - Niancheng Hong
- College of Food Science and Technology, Henan Agricultural University, Zhengzhou 450002, China; (Y.Z.); (N.H.); (L.Z.); (S.L.); (J.Z.); (Y.M.); (D.L.); (G.Z.)
- International Joint Laboratory of Meat Processing and Safety in Henan Province, Henan Agricultural University, Zhengzhou 450002, China
| | - Lijun Zhao
- College of Food Science and Technology, Henan Agricultural University, Zhengzhou 450002, China; (Y.Z.); (N.H.); (L.Z.); (S.L.); (J.Z.); (Y.M.); (D.L.); (G.Z.)
- International Joint Laboratory of Meat Processing and Safety in Henan Province, Henan Agricultural University, Zhengzhou 450002, China
| | - Shengnan Liu
- College of Food Science and Technology, Henan Agricultural University, Zhengzhou 450002, China; (Y.Z.); (N.H.); (L.Z.); (S.L.); (J.Z.); (Y.M.); (D.L.); (G.Z.)
- International Joint Laboratory of Meat Processing and Safety in Henan Province, Henan Agricultural University, Zhengzhou 450002, China
| | - Jie Zhang
- College of Food Science and Technology, Henan Agricultural University, Zhengzhou 450002, China; (Y.Z.); (N.H.); (L.Z.); (S.L.); (J.Z.); (Y.M.); (D.L.); (G.Z.)
- International Joint Laboratory of Meat Processing and Safety in Henan Province, Henan Agricultural University, Zhengzhou 450002, China
| | - Miaoyun Li
- College of Food Science and Technology, Henan Agricultural University, Zhengzhou 450002, China; (Y.Z.); (N.H.); (L.Z.); (S.L.); (J.Z.); (Y.M.); (D.L.); (G.Z.)
- International Joint Laboratory of Meat Processing and Safety in Henan Province, Henan Agricultural University, Zhengzhou 450002, China
| | - Yangyang Ma
- College of Food Science and Technology, Henan Agricultural University, Zhengzhou 450002, China; (Y.Z.); (N.H.); (L.Z.); (S.L.); (J.Z.); (Y.M.); (D.L.); (G.Z.)
- International Joint Laboratory of Meat Processing and Safety in Henan Province, Henan Agricultural University, Zhengzhou 450002, China
| | - Dong Liang
- College of Food Science and Technology, Henan Agricultural University, Zhengzhou 450002, China; (Y.Z.); (N.H.); (L.Z.); (S.L.); (J.Z.); (Y.M.); (D.L.); (G.Z.)
- International Joint Laboratory of Meat Processing and Safety in Henan Province, Henan Agricultural University, Zhengzhou 450002, China
| | - Gaiming Zhao
- College of Food Science and Technology, Henan Agricultural University, Zhengzhou 450002, China; (Y.Z.); (N.H.); (L.Z.); (S.L.); (J.Z.); (Y.M.); (D.L.); (G.Z.)
- International Joint Laboratory of Meat Processing and Safety in Henan Province, Henan Agricultural University, Zhengzhou 450002, China
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