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Yu D, Guo M, Tan M, Su W. Lipid-Lowering and Antioxidant Effects of Self-Assembled Astaxanthin-Anthocyanin Nanoparticles on High-Fat Caenorhabditis elegans. Foods 2024; 13:514. [PMID: 38397491 PMCID: PMC10887880 DOI: 10.3390/foods13040514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 01/24/2024] [Accepted: 01/31/2024] [Indexed: 02/25/2024] Open
Abstract
Obesity has become a serious global public health risk threatening millions of people. In this study, the astaxanthin-anthocyanin nanoparticles (AXT-ACN NPs) were used to investigate their effects on the lipid accumulation and antioxidative capacity of the high-sugar-diet-induced high-fat Caenorhabditis elegans (C. elegans). It can be found that the lifespan, motility, and reproductive capacity of the high-fat C. elegans were significantly decreased compared to the normal nematodes in the control group. However, treatment of high-fat C. elegans with AXT-ACN NPs resulted in a prolonged lifespan of 35 days, improved motility, and a 22.06% increase in total spawn production of the nematodes. Furthermore, AXT-ACN NPs were found to effectively extend the lifespan of high-fat C. elegans under heat and oxidative stress conditions. Oil-red O staining results also demonstrated that AXT-ACN NPs have a remarkable effect on reducing the fat accumulation in nematodes, compared with pure astaxanthin and anthocyanin nanoparticles. Additionally, AXT-ACN NPs can significantly decrease the accumulation of lipofuscin and the level of reactive oxygen species (ROS). The activities of antioxidant-related enzymes in nematodes were further measured, which revealed that the AXT-ACN NPs could increase the activities of catalase (CAT), superoxidase dismutase (SOD), and glutathione peroxidase (GSH-Px), and decrease the malondialdehyde (MDA) content. The astaxanthin and anthocyanin in AXT-ACN NPs showed sound synergistic antioxidation and lipid-lowering effects, making them potential components in functional foods.
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Affiliation(s)
- Deyang Yu
- State Key Laboratory of Marine Food Processing and Safety Control, Dalian Polytechnic University, Dalian 116034, China
- Academy of Food Interdisciplinary Science, Dalian Polytechnic University, Dalian 116034, China
- National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, China
- Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, China
| | - Meng Guo
- State Key Laboratory of Marine Food Processing and Safety Control, Dalian Polytechnic University, Dalian 116034, China
- Academy of Food Interdisciplinary Science, Dalian Polytechnic University, Dalian 116034, China
- National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, China
- Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, China
| | - Mingqian Tan
- State Key Laboratory of Marine Food Processing and Safety Control, Dalian Polytechnic University, Dalian 116034, China
- Academy of Food Interdisciplinary Science, Dalian Polytechnic University, Dalian 116034, China
- National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, China
- Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, China
| | - Wentao Su
- State Key Laboratory of Marine Food Processing and Safety Control, Dalian Polytechnic University, Dalian 116034, China
- Academy of Food Interdisciplinary Science, Dalian Polytechnic University, Dalian 116034, China
- National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, China
- Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, China
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Zhou B, Guo Y, Xue Y, Ji X, Huang Y. Comprehensive insights into the mechanism of keratin degradation and exploitation of keratinase to enhance the bioaccessibility of soybean protein. Biotechnol Biofuels Bioprod 2023; 16:177. [PMID: 37978558 PMCID: PMC10655438 DOI: 10.1186/s13068-023-02426-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 11/02/2023] [Indexed: 11/19/2023]
Abstract
Keratin is a recalcitrant protein and can be decomposed in nature. However, the mechanism of keratin degradation is still not well understood. In this study, Bacillus sp. 8A6 can completely degrade the feather in 20 h, which is an efficient keratin degrader reported so far. Comprehensive transcriptome analysis continuously tracks the metabolism of Bacillus sp. 8A6 throughout its growth in feather medium. It reveals for the first time how the strain can acquire nutrients and energy in an oligotrophic feather medium for proliferation in the early stage. Then, the degradation of the outer lipid layer of feather can expose the internal keratin structure for disulfide bonds reduction by sulfite from the newly identified sulfite metabolic pathway, disulfide reductases and iron uptake. The resulting weakened keratin has been further proposedly de-assembled by the S9 protease and hydrolyzed by synergistic effects of the endo, exo and oligo-proteases from S1, S8, M3, M14, M20, M24, M42, M84 and T3 families. Finally, bioaccessible peptides and amino acids are generated and transported for strain growth. The keratinase has been applied for soybean hydrolysis, which generates 2234 peptides and 559.93 mg/L17 amino acids. Therefore, the keratinases, inducing from the poultry waste, have great potential to be further applied for producing bioaccessible peptides and amino acids for feed industry.
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Affiliation(s)
- Beiya Zhou
- College of Mathematical Sciences, Bohai University, Jinzhou, 121013, Liaoning, China
- Beijing Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
- Huizhou Institute of Green Energy and Advanced Materials, Huizhou, 516000, Guangdong, China
| | - Yandong Guo
- College of Mathematical Sciences, Bohai University, Jinzhou, 121013, Liaoning, China.
| | - Yaju Xue
- Beijing Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
| | - Xiuling Ji
- Beijing Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
| | - Yuhong Huang
- Beijing Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China.
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Wang S, Li L, Zhao C, Rummy P, Wang R, Hu D. Redescription and phylogenetic affinities of the Early Cretaceous enantiornithine Dapingfangornis sentisorhinus. Anat Rec (Hoboken) 2023. [PMID: 37905495 DOI: 10.1002/ar.25341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 09/27/2023] [Accepted: 10/10/2023] [Indexed: 11/02/2023]
Abstract
Dapingfangornis sentisorhinus, a small to medium-sized enantiornithine from the Lower Cretaceous Jiufotang Formation in Western Liaoning, China, stands as one of the earliest known enantiornithines with well-preserved ornamental tail feathers. However, the original holotype description was limited due to damage and matrix interference, which obscured crucial osteological details. Therefore, we provide an updated description of the holotype specimen of D. sentisorhinus with the aid of CT scanning to reveal new and revised osteological information. Furthermore, a phylogenetic analysis of newly acquired data situates Dapingfangornis within the Enantiornithes, closely aligned with Pterygornis and a few other taxa, which may represent a previously unrecognized clade of Early Cretaceous enantiornithines.
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Affiliation(s)
- Shiying Wang
- College of Paleontology, Paleontological Museum of Liaoning, Key Laboratory for Evolution of Past Life and Change of Environment, Shenyang Normal University, Shenyang, People's Republic of China
| | - Li Li
- College of Paleontology, Paleontological Museum of Liaoning, Key Laboratory for Evolution of Past Life and Change of Environment, Shenyang Normal University, Shenyang, People's Republic of China
| | - Cuilin Zhao
- Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Paul Rummy
- Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Renfei Wang
- Graduate School, Shenyang University of Technology, Shenyang, People's Republic of China
| | - Dongyu Hu
- College of Paleontology, Paleontological Museum of Liaoning, Key Laboratory for Evolution of Past Life and Change of Environment, Shenyang Normal University, Shenyang, People's Republic of China
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Li Y, Li H, Li R, Su X, Shen S. Preparation of phosphorus-doped boron nitride and its adsorption of heavy metals from flue gas. R Soc Open Sci 2020; 7:200079. [PMID: 32968505 PMCID: PMC7481721 DOI: 10.1098/rsos.200079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Accepted: 07/10/2020] [Indexed: 06/11/2023]
Abstract
Boron nitride, also known as white graphene, has attracted extensive attention in the fields of adsorption, catalysis and hydrogen storage due to its excellent chemical properties. In this study, a phosphorus-doped boron nitride (P-BN) material was successfully prepared using red phosphorus as a dopant for the preparation of porous boron nitride precursors. The phosphorus content in the P-BN was adjusted based on the addition rate of phosphorus. The specific surface area of P-BN first increased and then decreased with increasing addition rate of phosphorus. The maximum specific surface area was 837.8 m2 g-1 when the phosphorus addition rate was 0.50. The P-BN prepared in the experiments was used as an adsorbent, and its adsorption capacity for heavy metals from flue gas was investigated. In particular, P-BN presented a stronger adsorption selectivity for zinc compared with other heavy metals, and its adsorption capacity for zinc was 5-38 times higher than for other heavy metals. The maximum adsorption capacity of P-BN for zinc and copper in a single heavy metal atmosphere was 69.45 and 53.80 mg g-1, respectively.
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Affiliation(s)
- Yanlong Li
- Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, School of Energy and Power Engineering, Dalian University of Technology, Dalian 116024, People's Republic of China
- Key Laboratory of Clean Energy, College of Energy and Environment, Shenyang Aerospace University, Shenyang 110136, People's Republic of China
| | - Hongxi Li
- Key Laboratory of Clean Energy, College of Energy and Environment, Shenyang Aerospace University, Shenyang 110136, People's Republic of China
| | - Rundong Li
- Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, School of Energy and Power Engineering, Dalian University of Technology, Dalian 116024, People's Republic of China
- Key Laboratory of Clean Energy, College of Energy and Environment, Shenyang Aerospace University, Shenyang 110136, People's Republic of China
| | - Xin Su
- Key Laboratory of Clean Energy, College of Energy and Environment, Shenyang Aerospace University, Shenyang 110136, People's Republic of China
| | - Shengqiang Shen
- Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, School of Energy and Power Engineering, Dalian University of Technology, Dalian 116024, People's Republic of China
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