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Zhao H, He T, Yao S, Tao L, Zhang X, Wang Z, Cui Z, Chen R. Improved Protein Removal Performance of PES Hollow-Fiber Ultrafiltration Membrane with Sponge-like Structure. Polymers (Basel) 2024; 16:1194. [PMID: 38732663 PMCID: PMC11085754 DOI: 10.3390/polym16091194] [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: 02/19/2024] [Revised: 04/05/2024] [Accepted: 04/10/2024] [Indexed: 05/13/2024] Open
Abstract
The research used polyethersulfone (PES) as a membrane material, polyvinylpyrrolidone (PVP) k30 and polyethylene glycol 400 (PEG 400) as water-soluble additives, and dimethylacetamide (DMAc) as a solvent to prepare hollow-fiber ultrafiltration membranes through a nonsolvent-induced phase separation (NIPS) process. The hydrophilic nature of PVP-k30 and PEG caused them to accumulate on the membrane surface during phase separation. The morphology, chemical composition, surface charge, and pore size of the PES membranes were evaluated by SEM, FTIR, zeta potential, and dextran filtration experiments. The paper also investigated how different spinning solution compositions affected membrane morphology and performance. The separation efficiency of membranes with four different morphologies was tested in single-protein and double-protein mixed solutions. The protein separation effectiveness of the membrane was studied through molecular weight cutoff, zeta potential, and static protein adsorption tests. In addition, the operating pressure and pH value were adjusted to improve ultrafiltration process conditions. The PES membrane with an intact sponge-like structure showed the highest separation factor of 11, making it a prime candidate membrane for the separation of bovine serum albumin (BSA) and lysozyme (LYS). The membrane had a minimal static protein adsorption capacity of 48 mg/cm2 and had excellent anti-fouling properties. When pH = 4, the BSA retention rate was 93% and the LYS retention rate was 23%. Furthermore, it exhibited excellent stability over a pH range of 1-13, confirming its suitability for protein separation applications.
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Affiliation(s)
- Huyang Zhao
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, China; (H.Z.); (T.H.); (L.T.); (X.Z.); (R.C.)
- National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing 210009, China
| | - Ting He
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, China; (H.Z.); (T.H.); (L.T.); (X.Z.); (R.C.)
- National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing 210009, China
| | - Shuang Yao
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, China; (H.Z.); (T.H.); (L.T.); (X.Z.); (R.C.)
- National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing 210009, China
| | - Long Tao
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, China; (H.Z.); (T.H.); (L.T.); (X.Z.); (R.C.)
- National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing 210009, China
| | - Xinhai Zhang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, China; (H.Z.); (T.H.); (L.T.); (X.Z.); (R.C.)
- National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing 210009, China
| | - Zhaohui Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, China; (H.Z.); (T.H.); (L.T.); (X.Z.); (R.C.)
- National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing 210009, China
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing 210009, China
| | - Zhaoliang Cui
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, China; (H.Z.); (T.H.); (L.T.); (X.Z.); (R.C.)
- National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing 210009, China
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing 210009, China
| | - Rizhi Chen
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, China; (H.Z.); (T.H.); (L.T.); (X.Z.); (R.C.)
- National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing 210009, China
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing 210009, China
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Du M, Hou Z, Liu L, Xuan Y, Chen X, Fan L, Li Z, Xu B. 1Progress, applications, challenges and prospects of protein purification technology. Front Bioeng Biotechnol 2022; 10:1028691. [PMID: 36561042 PMCID: PMC9763899 DOI: 10.3389/fbioe.2022.1028691] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Accepted: 11/15/2022] [Indexed: 12/12/2022] Open
Abstract
Protein is one of the most important biological macromolecules in life, which plays a vital role in cell growth, development, movement, heredity, reproduction and other life activities. High quality isolation and purification is an essential step in the study of the structure and function of target proteins. Therefore, the development of protein purification technologies has great theoretical and practical significance in exploring the laws of life activities and guiding production practice. Up to now, there is no forthcoming method to extract any proteins from a complex system, and the field of protein purification still faces significant opportunities and challenges. Conventional protein purification generally includes three steps: pretreatment, rough fractionation, and fine fractionation. Each of the steps will significantly affect the purity, yield and the activity of target proteins. The present review focuses on the principle and process of protein purification, recent advances, and the applications of these technologies in the life and health industry as well as their far-reaching impact, so as to promote the research of protein structure and function, drug development and precision medicine, and bring new insights to researchers in related fields.
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Affiliation(s)
- Miao Du
- Department of Medical Laboratory Science, Fenyang College, Shanxi Medical University, Fenyang, China
| | - Zhuru Hou
- Science and Technology Centre, Fenyang College of Shanxi Medical University, Fenyang, China
| | - Ling Liu
- Department of Medical Laboratory Science, Fenyang College, Shanxi Medical University, Fenyang, China,Key Laboratory of Lvliang for Clinical Molecular Diagnostics, Fenyang, China,*Correspondence: Ling Liu, ; Benjin Xu,
| | - Yan Xuan
- Department of Medical Laboratory Science, Fenyang College, Shanxi Medical University, Fenyang, China
| | - Xiaocong Chen
- Department of Basic Medicine, Fenyang College of Shanxi Medical University, Fenyang, China
| | - Lei Fan
- Department of Basic Medicine, Fenyang College of Shanxi Medical University, Fenyang, China
| | - Zhuoxi Li
- Department of Basic Medicine, Fenyang College of Shanxi Medical University, Fenyang, China
| | - Benjin Xu
- Department of Medical Laboratory Science, Fenyang College, Shanxi Medical University, Fenyang, China,Key Laboratory of Lvliang for Clinical Molecular Diagnostics, Fenyang, China,*Correspondence: Ling Liu, ; Benjin Xu,
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Lübeck M, Lübeck PS. Fungal Cell Factories for Efficient and Sustainable Production of Proteins and Peptides. Microorganisms 2022; 10:microorganisms10040753. [PMID: 35456803 PMCID: PMC9025306 DOI: 10.3390/microorganisms10040753] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 03/24/2022] [Accepted: 03/28/2022] [Indexed: 01/12/2023] Open
Abstract
Filamentous fungi are a large and diverse taxonomically group of microorganisms found in all habitats worldwide. They grow as a network of cells called hyphae. Since filamentous fungi live in very diverse habitats, they produce different enzymes to degrade material for their living, for example hydrolytic enzymes to degrade various kinds of biomasses. Moreover, they produce defense proteins (antimicrobial peptides) and proteins for attaching surfaces (hydrophobins). Many of them are easy to cultivate in different known setups (submerged fermentation and solid-state fermentation) and their secretion of proteins and enzymes are often much larger than what is seen from yeast and bacteria. Therefore, filamentous fungi are in many industries the preferred production hosts of different proteins and enzymes. Edible fungi have traditionally been used as food, such as mushrooms or in fermented foods. New trends are to use edible fungi to produce myco-protein enriched foods. This review gives an overview of the different kinds of proteins, enzymes, and peptides produced by the most well-known fungi used as cell factories for different purposes and applications. Moreover, we describe some of the challenges that are important to consider when filamentous fungi are optimized as efficient cell factories.
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