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Nisperos MJ, Bacosa H, Lumancas G, Arellano F, Aron J, Baclayon L, Bantilan ZC, Labares M, Bual R. Time-Dependent Demineralization of Tilapia ( Oreochromis niloticus) Bones Using Hydrochloric Acid for Extracellular Matrix Extraction. Biomimetics (Basel) 2023; 8:217. [PMID: 37366812 DOI: 10.3390/biomimetics8020217] [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: 04/16/2023] [Revised: 05/17/2023] [Accepted: 05/18/2023] [Indexed: 06/28/2023] Open
Abstract
Tilapia (Oreochromis niloticus) is a widely cultivated fish in tropical and subtropical regions such as the Philippines, generating substantial waste during processing, including bones that are a valuable source of extracellular matrix (ECM). However, the extraction of ECM from fish bones requires an essential step of demineralization. This study aimed to assess the efficiency of tilapia bone demineralization using 0.5 N HCl at different time durations. By evaluating the residual calcium concentration, reaction kinetics, protein content, and extracellular matrix (ECM) integrity through histological analysis, composition assessment, and thermal analysis, the effectiveness of the process was determined. Results revealed that after 1 h of demineralization, the calcium and protein contents were 1.10 ± 0.12% and 88.7 ± 0.58 μg/mL, respectively. The study found that after 6 h, the calcium content was almost completely removed, but the protein content was only 51.7 ± 1.52 μg/mL compared to 109.0 ± 1.0 μg/mL in native bone tissue. Additionally, the demineralization reaction followed second-order kinetics with an R2 value of 0.9964. Histological analysis using H&E staining revealed a gradual disappearance of the basophilic components and the emergence of lacunae, which can be attributed to decellularization and mineral content removal, respectively. As a result, organic components such as collagen remained in the bone samples. ATR-FTIR analysis showed that all demineralized bone samples retained collagen type I markers, including amide I, II, and III, amides A and B, and symmetric and antisymmetric CH2 bands. These findings provide a route for developing an effective demineralization protocol to extract high-quality ECM from fish bones, which could have important nutraceutical and biomedical applications.
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Affiliation(s)
- Michael John Nisperos
- Environmental Science Graduate Program, Department of Biological Sciences, College of Science and Mathematics, Mindanao State University-Iligan Institute of Technology, Iligan City 9200, Philippines
| | - Hernando Bacosa
- Environmental Science Graduate Program, Department of Biological Sciences, College of Science and Mathematics, Mindanao State University-Iligan Institute of Technology, Iligan City 9200, Philippines
- Center for Sustainable Polymers, Mindanao State University-Iligan Institute of Technology, Iligan City 9200, Philippines
| | - Gladine Lumancas
- Environmental Science Graduate Program, Department of Biological Sciences, College of Science and Mathematics, Mindanao State University-Iligan Institute of Technology, Iligan City 9200, Philippines
| | - Fernan Arellano
- Environmental Science Graduate Program, Department of Biological Sciences, College of Science and Mathematics, Mindanao State University-Iligan Institute of Technology, Iligan City 9200, Philippines
| | - Jemwel Aron
- Environmental Science Graduate Program, Department of Biological Sciences, College of Science and Mathematics, Mindanao State University-Iligan Institute of Technology, Iligan City 9200, Philippines
| | - Lean Baclayon
- Environmental Science Graduate Program, Department of Biological Sciences, College of Science and Mathematics, Mindanao State University-Iligan Institute of Technology, Iligan City 9200, Philippines
| | - Zesreal Cain Bantilan
- Center for Sustainable Polymers, Mindanao State University-Iligan Institute of Technology, Iligan City 9200, Philippines
| | - Marionilo Labares
- Center for Sustainable Polymers, Mindanao State University-Iligan Institute of Technology, Iligan City 9200, Philippines
| | - Ronald Bual
- Center for Sustainable Polymers, Mindanao State University-Iligan Institute of Technology, Iligan City 9200, Philippines
- Department of Chemical Engineering and Technology, College of Engineering, Mindanao State University-Iligan Institute of Technology, Iligan City 9200, Philippines
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Kamalanathan M, Chiu MH, Bacosa H, Schwehr K, Tsai SM, Doyle S, Yard A, Mapes S, Vasequez C, Bretherton L, Sylvan JB, Santschi P, Chin WC, Quigg A. Role of Polysaccharides in Diatom Thalassiosira pseudonana and its Associated Bacteria in Hydrocarbon Presence. Plant Physiol 2019; 180:1898-1911. [PMID: 31152126 PMCID: PMC6670077 DOI: 10.1104/pp.19.00301] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Accepted: 05/21/2019] [Indexed: 06/09/2023]
Abstract
Diatoms secrete a significant amount of polysaccharides, which can serve as a critical organic carbon source for bacteria. The 2010 Deepwater Horizon oil spill exposed the Gulf of Mexico to substantial amounts of oil that also impacted the phytoplankton community. Increased production of exopolymeric substances was observed after this oil spill. Polysaccharides make up a major fraction of exopolymeric substances; however, their physiological role during an oil spill remains poorly understood. Here, we analyzed the role of polysaccharides in the growth and physiology of the oil-sensitive diatom Thalassiosira pseudonana and how they shape the surrounding bacterial community and its activity in the presence of oil. We found that inhibition of chrysolaminarin synthesis had a negative effect on the growth of T pseudonana and intracellular monosaccharide accumulation, which in turn suppressed photosynthesis by feedback inhibition. In addition, by acting as a carbon reserve, chrysolaminarin helped in the recovery of T pseudonana in the presence of oil. Inhibition of chrysolaminarin synthesis also influenced the bacterial community in the free-living fraction but not in the phycosphere. Exposure to oil alone led to increased abundance of oil-degrading bacterial genera and the activity of exoenzyme lipase. Our data show that chrysolaminarin synthesis plays an important role in the growth and survival of T pseudonana in the presence of oil, and its inhibition can influence the composition and activity of the surrounding bacterial community.
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Affiliation(s)
- Manoj Kamalanathan
- Department of Marine Biology, Texas A&M University at Galveston, Galveston, Texas 77553
| | - Meng-Hsuen Chiu
- Bioengineering, School of Engineering, University of California at Merced, Merced, California 95343
| | - Hernando Bacosa
- Department of Marine Biology, Texas A&M University at Galveston, Galveston, Texas 77553
| | - Kathy Schwehr
- Department of Marine Science, Texas A&M University at Galveston, Galveston, Texas 77553
| | - Shih-Ming Tsai
- Bioengineering, School of Engineering, University of California at Merced, Merced, California 95343
| | - Shawn Doyle
- Department of Oceanography, Texas A&M University, College Station, Texas 77845
| | - Alexandra Yard
- Department of Marine Science, Texas A&M University at Galveston, Galveston, Texas 77553
| | - Savannah Mapes
- Department of Marine Biology, Texas A&M University at Galveston, Galveston, Texas 77553
| | - Carlos Vasequez
- Bioengineering, School of Engineering, University of California at Merced, Merced, California 95343
| | - Laura Bretherton
- Environmental Science Department, Mount Allison University, Sackville, New Brunswick E4L 1E2, Canada
| | - Jason B Sylvan
- Department of Oceanography, Texas A&M University, College Station, Texas 77845
| | - Peter Santschi
- Department of Marine Science, Texas A&M University at Galveston, Galveston, Texas 77553
| | - Wei-Chun Chin
- Bioengineering, School of Engineering, University of California at Merced, Merced, California 95343
| | - Antonietta Quigg
- Department of Marine Biology, Texas A&M University at Galveston, Galveston, Texas 77553
- Department of Oceanography, Texas A&M University, College Station, Texas 77845
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Bretherton L, Hillhouse J, Bacosa H, Setta S, Genzer J, Kamalanathan M, Finkel ZV, Quigg A. Growth dynamics and domoic acid production of Pseudo-nitzschia sp. in response to oil and dispersant exposure. Harmful Algae 2019; 86:55-63. [PMID: 31358277 DOI: 10.1016/j.hal.2019.05.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 05/09/2019] [Accepted: 05/13/2019] [Indexed: 06/10/2023]
Abstract
The diatom genus Pseudo-nitzschia is a common component of phytoplankton communities in the Gulf of Mexico and is potentially toxic as some species produce the potent neurotoxin domoic acid. The impact of oil and chemical dispersants on Pseudo-nitzschia spp. and domoic acid production have not yet been studied; preliminary findings from a mesocosm experiment suggest this genus may be particularly resilient. A toxicological study was conducted using a colony of Pseudo-nitzschia sp. isolated from a station off the coast of Louisiana in the Gulf of Mexico. The cultures were exposed to a water accommodated fraction (WAF) of oil and a diluted chemically enhanced WAF (DCEWAF) which was a mix of oil and dispersant (20:1). Exposure to WAF induced a lag phase but did not inhibit growth rates once in exponential growth. Cultures grown in DCEWAF did not experience a lag phase but had significantly lower growth rates than the Control and WAF cultures. The cellular quota of domoic acid was higher in cultures treated with DCEWAF and WAF relative to their control values, and half of the domoic acid had leaked out of the cells into the surrounding seawater in the DCEWAF cultures while all the domoic acid remained inside the cells in WAF-treated cultures. These results suggest that the presence of oil could lead to toxic blooms, but that the application of dispersant could decrease bioaccumulation of domoic acid through the food web.
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Affiliation(s)
- Laura Bretherton
- Department of Marine Biology, Texas A&M University at Galveston, Galveston, TX, 77554, USA.
| | - Jessica Hillhouse
- Department of Marine Biology, Texas A&M University at Galveston, Galveston, TX, 77554, USA
| | - Hernando Bacosa
- Department of Marine Biology, Texas A&M University at Galveston, Galveston, TX, 77554, USA
| | - Samantha Setta
- Department of Marine Biology, Texas A&M University at Galveston, Galveston, TX, 77554, USA
| | - Jennifer Genzer
- Department of Marine Biology, Texas A&M University at Galveston, Galveston, TX, 77554, USA
| | - Manoj Kamalanathan
- Department of Marine Biology, Texas A&M University at Galveston, Galveston, TX, 77554, USA
| | - Zoe V Finkel
- Department of Oceanography, Dalhousie University, Halifax, NS, B3H 4R2, Canada
| | - Antonietta Quigg
- Department of Marine Biology, Texas A&M University at Galveston, Galveston, TX, 77554, USA; Department of Oceanography, Texas A&M University, College Station, TX, 77843 USA
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Evans M, Liu J, Bacosa H, Rosenheim BE, Liu Z. Petroleum hydrocarbon persistence following the Deepwater Horizon oil spill as a function of shoreline energy. Mar Pollut Bull 2017; 115:47-56. [PMID: 27894726 DOI: 10.1016/j.marpolbul.2016.11.022] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Revised: 11/06/2016] [Accepted: 11/10/2016] [Indexed: 06/06/2023]
Abstract
An important aspect of oil spill science is understanding how the compounds within spilled oil, especially toxic components, change with weathering. In this study we follow the evolution of petroleum hydrocarbons, including n-alkanes, polycyclic aromatic hydrocarbons (PAHs) and alkylated PAHs, on a Louisiana beach and salt marsh for three years following the Deepwater Horizon spill. Relative to source oil, we report overall depletion of low molecular weight n-alkanes and PAHs in all locations with time. The magnitude of depletion, however, depends on the sampling location, whereby sites with highest wave energy have highest compound depletion. Oiled sediment from an enclosed bay shows high enrichment of high molecular weight PAHs relative to 17α(H),21β(H)-hopane, suggesting the contribution from sources other than the Deepwater Horizon spill, such as fossil fuel burning. This insight into hydrocarbon persistence as a function of hydrography and hydrocarbon source can inform policy and response for future spills.
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Affiliation(s)
- Meredith Evans
- Marine Science Institute, The University of Texas at Austin, 750 Channel View Drive, Port Aransas, TX 78373-5015, United States
| | - Jiqing Liu
- Marine Science Institute, The University of Texas at Austin, 750 Channel View Drive, Port Aransas, TX 78373-5015, United States
| | - Hernando Bacosa
- Marine Science Institute, The University of Texas at Austin, 750 Channel View Drive, Port Aransas, TX 78373-5015, United States
| | - Brad E Rosenheim
- College of Marine Science, University of South Florida, 830 1st St. SE, Saint Petersburg, Florida 33701-5921, United States
| | - Zhanfei Liu
- Marine Science Institute, The University of Texas at Austin, 750 Channel View Drive, Port Aransas, TX 78373-5015, United States.
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Murphy D, Gemmell B, Vaccari L, Li C, Bacosa H, Evans M, Gemmell C, Harvey T, Jalali M, Niepa THR. An in-depth survey of the oil spill literature since 1968: Long term trends and changes since Deepwater Horizon. Mar Pollut Bull 2016; 113:371-379. [PMID: 27773534 DOI: 10.1016/j.marpolbul.2016.10.028] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2016] [Revised: 10/04/2016] [Accepted: 10/10/2016] [Indexed: 05/27/2023]
Abstract
In order to characterize the state of oil spill research and describe how the field has changed since its inception in the 1960s and since the Deepwater Horizon spill in 2010, we examined approximately 10% of oil spill literature (1255 of over 11,000 publications) published from 1968 to 2015. We find that, despite its episodic nature, oil spill research is a rapidly expanding field with a growth rate faster than that of science as a whole. There is a massive post-Deepwater Horizon shift of research attention to the Gulf of Mexico, from 2% of studies in 2004-2008 to 61% in 2014-2015, thus ranking Deepwater Horizon as the most studied oil spill. There is, however, a longstanding gap in research in that only 1% of studies deal with the effects of oil spills on human health. These results provide a better understanding of the current trends and gaps within the field.
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Affiliation(s)
- David Murphy
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD 21218, United States; Department of Mechanical Engineering, University of South Florida, Tampa, FL 33620, United States.
| | - Brad Gemmell
- Department of Marine Science, University of Texas at Austin Marine Science Institute, Port Aransas, TX 78373, United States; Department of Integrative Biology, University of South Florida, Tampa, FL 33620, United States
| | - Liana Vaccari
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, PA 19104, United States
| | - Cheng Li
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD 21218, United States
| | - Hernando Bacosa
- Department of Marine Science, University of Texas at Austin Marine Science Institute, Port Aransas, TX 78373, United States
| | - Meredith Evans
- Department of Marine Science, University of Texas at Austin Marine Science Institute, Port Aransas, TX 78373, United States
| | - Colbi Gemmell
- Department of Marine Science, University of Texas at Austin Marine Science Institute, Port Aransas, TX 78373, United States
| | - Tracy Harvey
- Department of Marine Science, University of Texas at Austin Marine Science Institute, Port Aransas, TX 78373, United States
| | - Maryam Jalali
- Department of Mechanical Engineering, Texas Tech University, Lubbock, TX 79409, United States
| | - Tagbo H R Niepa
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, PA 19104, United States
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