1
|
Majeed Z, Farhat H, Ahmad B, Iqbal A, Faiz AUH, Mahnashi MH, Alqarni AO, Alqahtani O, Ali AA, Momenah AM. Process optimization, antioxidant, antibacterial, and drug adjuvant properties of bioactive keratin microparticles derived from porcupine ( Hystrix indica) quills. PeerJ 2023; 11:e15653. [PMID: 37609437 PMCID: PMC10441523 DOI: 10.7717/peerj.15653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Accepted: 06/07/2023] [Indexed: 08/24/2023] Open
Abstract
A structural protein called keratin is often employed in the medical industry to create medication carriers. Process improvement, antioxidant, antibacterial, and adjuvant drug studies of synthetic bioactive keratin microparticles made from lipids and keratin derived from porcupine (Hystrix indica) quills are the main objectives of this study. After coating the keratin microparticles with lipids which were obtained from the same porcupine quills, the bioactive keratin microparticles were produced. The response surface technique was applied to optimize the conditions for extraction of the keratin protein and sizing of the keratin microparticles. An infrared spectroscopy was used to analyze the chemical shifts in compositions of keratin microparticles while the optical microscopy was used to measure the size of the keratin microparticles. The results of this work revealed that a yield 27.36 to 42.25% of the keratin protein could be obtained from porcupine quills. The keratin microparticles were sized between 60.65 and 118.87 µm. Through response surface optimization, mercaptoethanol and urea were shown to be the main variables which positively affected the yield and the size of the keratin protein. The lipid stacking on the keratin microparticles' surface was confirmed by infrared spectroscopy. The 2,2'-azinobis-(3-ethylbenzothiazoline-6-sulphonate) assay confirmed the keratin microparticle's antioxidant activity of 29.83%. Compared to lipid alone, the antibacterial properties of the keratin microparticles against Escherichia coli-a gram-negative-and Staphylococcus aureus-a gram-positive-bacteria enhanced by up to 55% following the coating of the microparticles with the lipids. The pharmacological action against these bacterial species was further improved by the lipid-loaded erythromycin that was carried on the surface of keratin microparticles. This work has demonstrated the design and uses of the keratin microparticles obtained from porcupine quills for clinical applications.
Collapse
Affiliation(s)
- Zahid Majeed
- Department of Biotechnology, Faculty of Science, The University of Azad Jammu and Kashmir, Muzaffarabad, Pakistan
| | - Hoorulain Farhat
- Department of Zoology, Faculty of Science, The University of Azad Jammu and Kashmir, Muzaffarabad, Pakistan
| | - Basharat Ahmad
- Department of Zoology, The University of Azad Jammu and Kashmir, Muzaffarabad, Pakistan
| | - Atia Iqbal
- Department of Microbiology and Molecular Genetics, The Women University, Multan, Pakistan
| | - Abu ul Hassan Faiz
- Department of Zoology, Faculty of Science and Technology, Women University of Azad Jammu and Kashmir, Bagh, Pakistan
| | - Mater H. Mahnashi
- Department of Pharmaceutical Chemistry, Najran University, Najran, Saudi Arabia
| | - Ali O. Alqarni
- Department of Pharmaceutical Chemistry, Najran University, Najran, Saudi Arabia
| | - Omaish Alqahtani
- Department of Pharmacognosy, College of Pharmacy, Najran University, Najran, Saudi Arabia
| | - Amer Al Ali
- Department of Clinical Laboratory Sciences, Faculty of Applied Medical Sciences, University of Bisha, Al Nakhil Bisha, Saudi Arabia
| | - Aiman M. Momenah
- Department of Microbiology, Faculty of Medicine, Umm Al-Qura University, Makkah, Saudi Arabia
| |
Collapse
|
2
|
Optimization of Keratin Hydrolysate Extraction from Tannery Sheep Hair Waste. INTERNATIONAL JOURNAL OF CHEMICAL ENGINEERING 2023. [DOI: 10.1155/2023/9293505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
Tannery hair wastes are becoming a challenge for tanners regarding environmental pollution control and human health. In this study, an experiment had been designed to hydrolyse sheep hair in an alkaline medium, and the operational condition for the alkaline extraction of KH has been modeled and optimized. The structure, morphology, functional groups, particle size, and molecular mass of the KH extracts were evaluated experimentally by scanning electron microscopy, X-ray diffraction, Fourier transform infrared spectroscopy (FTIR), particle size analysis, and SDS-PAGE analysis, respectively. FTIR analysis of the extract confirmed the presence of carboxylic, amide, and aldehyde functional groups and alkyl side chains of amino acids. The molecular weight of the extracted keratin ranges between 3–15 kDa, and X-ray diffraction (XRD) analysis showed an amorphous form of structure with two peaks at 2 theta of 9.36° and 21.16° due to
-helix and
- sheet structure in keratin. Response surface methodology (RSM) coupled with BOX-Behnken design was applied as a statistical tool to investigate the effect of extraction time, the concentration of the hydrolysing agent, and temperature on the response variable (yield of keratin protein). The concentration of the hydrolysing agent was found to be the most significant factor affecting the speed of extraction, but its gradual increase tends to affect the protein content of the extract. Optimum parameters of 0.5 N, 80°C, and 3.5 hr were obtained for the concentration of NaOH, temperature, and extraction time, respectively, with a maximum average protein yield of 91.5% and a percentage total nitrogen content of 14.6% using the Kjeldahl method and 86.57% using the biuret test method.
Collapse
|
3
|
Functionalization Routes for Keratin from Poultry Industry Side-Streams-Towards Bio-Based Absorbent Polymers. Polymers (Basel) 2023; 15:polym15020351. [PMID: 36679232 PMCID: PMC9863878 DOI: 10.3390/polym15020351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 12/30/2022] [Accepted: 01/05/2023] [Indexed: 01/12/2023] Open
Abstract
Keratin is a largely available protein that can be obtained from the ca. 3 million tons of feathers that the European poultry industry produces as a side-stream. Here, the functionalization of keratin from poultry feathers was evaluated using a one- versus two-stage process using two functionalization agents (succinic anhydride-SA and ethylene dianhydride-EDTAD). The functionalization resulted in the keratin having improved liquid swelling capacities, reaching up to 400%, 300%, and 85% increase in water, saline, and blood, respectively, compared to non-functionalized keratin. The highest swelling was obtained for samples functionalized with EDTAD (one-stage process), while the highest saline uptake was noted for samples processed with 25 wt% SA (two-stage process). Swelling kinetics modeling indicated that the water uptake by the functionalized samples takes place in two steps, and the EDTAD samples showed the highest diffusivity. It is demonstrated that the one-stage functionalization of keratin utilizing EDTAD results in better performance than two-stages, which allows for resource-saving and, thereby, protecting the environment. The results show some potential for the keratin to be utilized as liquid absorbent materials in water, saline, and blood uptake applications. Using keratin from side-streams is an advantage from a sustainability perspective over biomacromolecules that need to be extracted from virgin biomass.
Collapse
|
4
|
Trojanowska D, Suarato G, Braccia C, Armirotti A, Fiorentini F, Athanassiou A, Perotto G. Wool Keratin Nanoparticle-Based Micropatterns for Cellular Guidance Applications. ACS APPLIED NANO MATERIALS 2022; 5:15272-15287. [PMID: 36338329 PMCID: PMC9624257 DOI: 10.1021/acsanm.2c03116] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 09/27/2022] [Indexed: 06/16/2023]
Abstract
The waste stream of low-grade wool is an underutilized source of keratin-rich materials with appropriate methods for upcycling into high value-added products still being an open challenge. In the present work, keratins were precipitated from their water solution to produce hierarchical keratin particles via isoelectric precipitation. Matrix-assisted laser desorption/ionization coupled with time-of-flight tandem mass spectrometry analysis (MALDI-TOF/TOF MS/MS) showed the presence of the amino acid sequence leucine-aspartic acid-valine (LDV) in the extracted keratin. This well-known cell adhesion motif is recognized by the cell adhesion molecule α4β1 integrin. We showed that keratin particles had this tripeptide exposed on the surface and that it could be leveraged, via patterns obtained with microcontact printing, to support and facilitate dermal fibroblast cell adhesion and direct their growth orientation. The zeta potential, isoelectric point, morphological structures, chemical composition, and biocompatibility of keratin particles and the influence of the surfactant sodium dodecyl sulfate (SDS) were investigated. An appropriate ink for microcontact printing of the keratin particles was developed and micron-sized patterns were obtained. Cells adhered preferentially to the patterns, showing how this strategy could be used to functionalize biointerfaces.
Collapse
Affiliation(s)
- Dagmara
J. Trojanowska
- Istituto
Italiano di Tecnologia, Smart Materials Group, Via Morego, 30, 16163Genova, Italy
- Department
of Materials Science, University of Milano-Bicocca, via R. Cozzi 55, 20125Milan, Italy
| | - Giulia Suarato
- Istituto
Italiano di Tecnologia, Smart Materials Group, Via Morego, 30, 16163Genova, Italy
- Istituto
Italiano di Tecnologia, Translational Pharmacology Facility, Via Morego, 30, 16163Genova, Italy
| | - Clarissa Braccia
- Istituto
Italiano di Tecnologia, Analytical Chemistry Facility, Via Morego, 30, 16163Genova, Italy
| | - Andrea Armirotti
- Istituto
Italiano di Tecnologia, Analytical Chemistry Facility, Via Morego, 30, 16163Genova, Italy
| | - Fabrizio Fiorentini
- Istituto
Italiano di Tecnologia, Smart Materials Group, Via Morego, 30, 16163Genova, Italy
| | - Athanassia Athanassiou
- Istituto
Italiano di Tecnologia, Smart Materials Group, Via Morego, 30, 16163Genova, Italy
| | - Giovanni Perotto
- Istituto
Italiano di Tecnologia, Smart Materials Group, Via Morego, 30, 16163Genova, Italy
| |
Collapse
|
5
|
Ghaffari-Bohlouli P, Jafari H, Taebnia N, Abedi A, Amirsadeghi A, Niknezhad SV, Alimoradi H, Jafarzadeh S, Mirzaei M, Nie L, Zhang J, Varma RS, Shavandi A. Protein by-products: Composition, extraction, and biomedical applications. Crit Rev Food Sci Nutr 2022; 63:9436-9481. [PMID: 35546340 DOI: 10.1080/10408398.2022.2067829] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Significant upsurge in animal by-products such as skin, bones, wool, hides, feathers, and fats has become a global challenge and, if not properly disposed of, can spread contamination and viral diseases. Animal by-products are rich in proteins, which can be used as nutritional, pharmacologically functional ingredients, and biomedical materials. Therefore, recycling these abundant and renewable by-products and extracting high value-added components from them is a sustainable approach to reclaim animal by-products while addressing scarce landfill resources. This article appraises the most recent studies conducted in the last five years on animal-derived proteins' separation and biomedical application. The effort encompasses an introduction about the composition, an overview of the extraction and purification methods, and the broad range of biomedical applications of these ensuing proteins.
Collapse
Affiliation(s)
| | - Hafez Jafari
- 3BIO-BioMatter, Faculty of engineering, Free University of Brussels (ULB), Brussels, Belgium
| | - Nayere Taebnia
- Center for Intestinal Absorption and Transport of Biopharmaceuticals, Department of Health Technology, Technical University of Denmark, Kgs. Lyngby, Denmark
| | - Ali Abedi
- Department of Life Science Engineering, Faculty of New Sciences and Technology, University of Tehran, Tehran, Iran
| | - Armin Amirsadeghi
- Burn and Wound Healing Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Seyyed Vahid Niknezhad
- Burn and Wound Healing Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Houman Alimoradi
- School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
| | - Sina Jafarzadeh
- Department of Energy Conversion and Storage, Technical University of Denmark, Kgs. Lyngby, Denmark
| | - Mahta Mirzaei
- 3BIO-BioMatter, Faculty of engineering, Free University of Brussels (ULB), Brussels, Belgium
| | - Lei Nie
- 3BIO-BioMatter, Faculty of engineering, Free University of Brussels (ULB), Brussels, Belgium
- College of Life Sciences, Xinyang Normal University, Xinyang, China
| | - Jianye Zhang
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State & NMPA Key Laboratory of Respiratory Disease, Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, P.R. China
| | - Rajender S Varma
- Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute, Palacky University, Olomouc, Czech Republic
| | - Amin Shavandi
- 3BIO-BioMatter, Faculty of engineering, Free University of Brussels (ULB), Brussels, Belgium
| |
Collapse
|
6
|
Velamakanni RP, Sree BS, Vuppugalla P, Velamakanni RS, Merugu R. Biopolymers from Microbial Flora. Biopolymers 2022. [DOI: 10.1007/978-3-030-98392-5_8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
7
|
Biopolymers: Global Carbon Footprint and Climate Change. Biopolymers 2022. [DOI: 10.1007/978-3-030-98392-5_3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
8
|
Kumawat TK, Kumawat V, Sharma S, Sharma V, Pandit A, Kandwani N, Biyani M. Sustainable Green Methods for the Extraction of Biopolymers. Biopolymers 2022. [DOI: 10.1007/978-3-030-98392-5_5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
9
|
Abstract
Proteases are ubiquitous enzymes, having significant physiological roles in both synthesis and degradation. The use of microbial proteases in food fermentation is an age-old process, which is today being successfully employed in other industries with the advent of ‘omics’ era and innovations in genetic and protein engineering approaches. Proteases have found application in industries besides food, like leather, textiles, detergent, waste management, agriculture, animal husbandry, cosmetics, and pharmaceutics. With the rising demands and applications, researchers are exploring various approaches to discover, redesign, or artificially synthesize enzymes with better applicability in the industrial processes. These enzymes offer a sustainable and environmentally safer option, besides possessing economic and commercial value. Various bacterial and fungal proteases are already holding a commercially pivotal role in the industry. The current review summarizes the characteristics and types of proteases, microbial source, their current and prospective applications in various industries, and future challenges. Promoting these biocatalysts will prove significant in betterment of the modern world.
Collapse
|
10
|
Das A, Das A, Basu A, Datta P, Gupta M, Mukherjee A. Newer guar gum ester/chicken feather keratin interact films for tissue engineering. Int J Biol Macromol 2021; 180:339-354. [PMID: 33711372 DOI: 10.1016/j.ijbiomac.2021.03.034] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 03/03/2021] [Accepted: 03/06/2021] [Indexed: 01/09/2023]
Abstract
This work intends to synthesis newer guar gum indole acetate ester and design film scaffolds based on protein-polysaccharide interactions for tissue engineering applications. Guar gum indole acetate(GGIA) was synthesized for the first time from guar gum in presence of aprotic solvent activated hofmeister ions. The newer biopolymer was fully characterized in FT-IR,13C NMR, XRD and TGA analysis. High DS (Degree of Substitution, DS = 0.61) GGIA was cross-linked with hydrolyzed keratin, extracted from chicken feather wastes. Films were synthesized from different biopolymer ratios and the surface chemistry appeared interesting. Physicochemical properties for GGIA-keratin association were notable. Fully bio-based films were non-cytotoxic and exhibited excellent biocompatibility for human dermal fibroblast cell cultivations. The film scaffold showed 63% porosity and the recorded tensile strength at break was 6.4 MPa. Furthermore, the standardised film exerted superior antimicrobial activity against both the Gram-positive and Gram-negative bacteria. MICs were recorded at 130 μg/mL and 212 μg/mL for E. coli and S. aureus respectively. In summary, GGIA-keratin film scaffolds represented promising platforms for skin tissue engineering applications.
Collapse
Affiliation(s)
- Aatrayee Das
- Division of Pharmaceutical and Fine Chemical Technology, Department of Chemical Technology, University of Calcutta, 92, A.P.C. Road, Kolkata 700009, West Bengal, India
| | - Ankita Das
- Centre for Healthcare Science and Technology, Indian Institute of Engineering Science and Technology, Shibpur, Howrah 711103, West Bengal, India
| | - Aalok Basu
- Division of Pharmaceutical and Fine Chemical Technology, Department of Chemical Technology, University of Calcutta, 92, A.P.C. Road, Kolkata 700009, West Bengal, India; Dr. B.C. Roy College of Pharmacy and Allied Health Sciences, Bidhannagar, Durgapur 713206, West Bengal, India
| | - Pallab Datta
- Centre for Healthcare Science and Technology, Indian Institute of Engineering Science and Technology, Shibpur, Howrah 711103, West Bengal, India
| | - Mradu Gupta
- Dravyaguna Department, Institute of Post Graduate Ayurvedic Education and Research, 294/3/1, A.P.C. Road, Kolkata, 700009, West Bengal, India
| | - Arup Mukherjee
- Department of Biotechnology, Maulana Abul Kalam Azad University of Technology, NH 12, Haringhata, Nadia 721249, West Bengal, India.
| |
Collapse
|
11
|
Gül Çelik M, Hakan Morcali M, Ayhan Ziba C, Dolaz M. Valorization of Chicken Feather Waste: Fabrication of Keratin‐Chitosan Biofilms. ChemistrySelect 2021. [DOI: 10.1002/slct.202100085] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Mediha Gül Çelik
- Kahramanmaras Sutcu Imam University Department of Environmental Engineering Kahramanmaras Turkey
| | - M. Hakan Morcali
- Kahramanmaras Sutcu Imam University Department of Environmental Engineering Kahramanmaras Turkey
- Gaziantep University, Naci Topcuoglu Vocational High School Gaziantep Turkey
| | - Cengiz Ayhan Ziba
- Kahramanmaras Sutcu Imam University, Afsin Vocational High School Kahramanmaras Turkey
| | - Mustafa Dolaz
- Kahramanmaras Sutcu Imam University Department of Environmental Engineering Kahramanmaras Turkey
- Kyrgyz-Turkish Manas University Department of Environmental Engineering Bishkek Kyrgyz Republic Turkey
| |
Collapse
|
12
|
Effect of thermal treatments on the structural change and the hemostatic property of hair extracted proteins. Colloids Surf B Biointerfaces 2020; 190:110951. [DOI: 10.1016/j.colsurfb.2020.110951] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 03/04/2020] [Accepted: 03/05/2020] [Indexed: 01/16/2023]
|
13
|
Khumalo M, Sithole B, Tesfaye T. Valorisation of waste chicken feathers: Optimisation of keratin extraction from waste chicken feathers by sodium bisulphite, sodium dodecyl sulphate and urea. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2020; 262:110329. [PMID: 32250808 DOI: 10.1016/j.jenvman.2020.110329] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 02/12/2020] [Accepted: 02/22/2020] [Indexed: 06/11/2023]
Abstract
Extraction of keratin from keratinous waste materials, such as chicken feathers, has been identified as the favourable approach in beneficiation of this biomass. The chemical extractions of keratin by reducing agents are usually preferred because the process is much faster than its counterpart, oxidation extraction. One such reduction extraction is the use of a mixture of sodium bisulphite, sodium dodecyl sulphate and urea. There are at least five factors that may affect the keratin extraction process and its final properties when using this extraction. Even though this extraction method is often used, the effects of its independent variables have not been studied; as a result, the effects of independent variables cannot be fully linked to the extraction process and final keratin properties. Therefore, this study aimed to optimise the extraction of keratin from waste chicken feathers using sodium bisulphite, sodium dodecyl sulphate and urea. The optimisation was statistically performed using Response Surface Methodology (RSM) linked with Box-Behnken Design. After screening the independent variable using one factor at a time method, the concentration of sodium bisulphite, concentration of sodium dodecyl sulphate, reaction temperature and reaction time were chosen for the study. Twenty-nine experiments were statistically designed and executed, and their results were used to analyse the effects of all the independent variables in order to optimise the extraction process. The reaction temperature was found to be the most significant factor, while the concentration of sodium dodecyl sulphate was the most insignificant factor of this extraction process. Independent variables significance order was reaction temperature > reaction time > concentration of NaHSO3 > concentration of NaC12H25SO4. The designed reduced cubic model was significant and was used to predict the protein yield from the keratin extraction using sodium bisulphite.
Collapse
Affiliation(s)
- Mduduzi Khumalo
- University of KwaZulu-Natal, Discipline of Chemical Engineering, Durban, South Africa; Biorefinery Industry Development Facility, Chemical Cluster, Council for Scientific and Industrial Research, Durban, South Africa.
| | - Bruce Sithole
- University of KwaZulu-Natal, Discipline of Chemical Engineering, Durban, South Africa; Biorefinery Industry Development Facility, Chemical Cluster, Council for Scientific and Industrial Research, Durban, South Africa
| | - Tamrat Tesfaye
- University of KwaZulu-Natal, Discipline of Chemical Engineering, Durban, South Africa; Biorefinery Industry Development Facility, Chemical Cluster, Council for Scientific and Industrial Research, Durban, South Africa; Ethiopian Institute of Textile and Fashion Technology, Bahir Dar University, Bahir Dar, Ethiopia
| |
Collapse
|
14
|
Wu Z. Mixed fermentation of Aspergillus niger and Candida shehatae to produce bioethanol with ionic-liquid-pretreated bagasse. 3 Biotech 2019; 9:41. [PMID: 30675451 PMCID: PMC6328811 DOI: 10.1007/s13205-019-1570-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Accepted: 01/03/2019] [Indexed: 10/27/2022] Open
Abstract
In this study, bagasse was pretreated with ionic liquid (IL) 1-butyl-3-methylimidazolium chloride ([Bmim]Cl) and 1% NaOH solution for initial activation of bagasse. A mixed fermentation of treated bagasse by Aspergillus niger and Candida shehatae showed the optimal conditions with the addition of C. shehatae 12 h later at a 1:1 proportion to A. niger. To further improve the ethanol production and obtain optimal fermentation conditions, a Plackett-Burman design was applied to screen the significant formulation and process variables. The optimal ethanol fermentation conditions with IL pretreated bagasse were determined using response surface methodology by Box-Behnken design. Three variables "initial pH, (NH4)2SO4, fermentation time" were regarded as significant factors in the optimization study. The resulting optimum fermentation conditions for bioethanol was identified as: initial pH of 5.89, (NH4)2SO4 concentration of 0.40 g/50 mL, and fermentation time of 3.60 days. The verification experimental ethanol concentration was 8.14 g/L, which agreed with the predicted value. An enhancement of approximately 153.58% compared with initial fermentation conditions in ethanol production was found using optimized conditions. It demonstrated that optimization methodology had a positive effect on the improvement of ethanol production. Under the optimal fermentation medium and conditions, the ethanol production with IL-pretreated bagasse and untreated bagasse was 8.14 g/L and 5.03 g/L, respectively, which exhibited 62% increase, compared to initial conditions with production of 3.21 g/L and 2.67 g/L, respectively, which displayed 20% increase. Both under optimal and original fermentation conditions, compared to the fermentation medium with untreated bagasse, all the results indicated that IL-pretreated bagasse resulted in higher ethanol production than untreated bagasse, demonstrating that IL-pretreated bagasse successfully increased the ethanol production in the mixed fermentation by A. niger and C. shehatae.
Collapse
Affiliation(s)
- Zaiqiang Wu
- Center for Molecular Metabolism, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, 210094 China
| |
Collapse
|
15
|
Adelere IA, Lateef A. Degradation of Keratin Biomass by Different Microorganisms. KERATIN AS A PROTEIN BIOPOLYMER 2019. [DOI: 10.1007/978-3-030-02901-2_5] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
16
|
Ozdal M, Kurbanoglu EB. Valorisation of chicken feathers for xanthan gum production using Xanthomonas campestris MO-03. J Genet Eng Biotechnol 2018; 16:259-263. [PMID: 30733733 PMCID: PMC6353776 DOI: 10.1016/j.jgeb.2018.07.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 07/07/2018] [Accepted: 07/16/2018] [Indexed: 01/14/2023]
Abstract
Xanthan gum is an important commercial polysaccharide produced by Xanthomonas species. In this study, xanthan production was investigated using a local isolate of Xanthomonas campestris MO-03 in medium containing various concentrations of chicken feather peptone (CFP) as an enhancer substrate. CFP was produced with a chemical process and its chemical composition was determined. The addition of CFP (1–8 g/l) increased the conversion of sugar to xanthan gum in comparison with the control medium, which did not contain additional supplements. The highest xanthan production (24.45 g/l) was found at the 6 g/l CFP containing control medium in 54 h. This value was 1.73 fold higher than that of control medium (14.12 g/l). Moreover, addition of CFP improved the composition of xanthan gum; the pyruvate content of xanthan was 3.86% (w/w), higher than that of the control (2.2%, w/w). The xanthan gum yield was also influenced by the type of organic nitrogen sources. As a conclusion, CFP was found to be a suitable substrate for xanthan gum production.
Collapse
Affiliation(s)
- Murat Ozdal
- Department of Biology, Faculty of Science, Ataturk University, Erzurum, Turkey
| | | |
Collapse
|
17
|
Microbial production and industrial applications of keratinases: an overview. Int Microbiol 2018; 21:163-174. [DOI: 10.1007/s10123-018-0022-1] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2018] [Revised: 07/05/2018] [Accepted: 07/06/2018] [Indexed: 11/25/2022]
|
18
|
Ramakrishnan N, Sharma S, Gupta A, Alashwal BY. Keratin based bioplastic film from chicken feathers and its characterization. Int J Biol Macromol 2018; 111:352-358. [PMID: 29320725 DOI: 10.1016/j.ijbiomac.2018.01.037] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Revised: 01/04/2018] [Accepted: 01/06/2018] [Indexed: 01/18/2023]
Abstract
Plastics have been one of the highly valued materials and it plays an significant role in human's life such as in food packaging and biomedical applications. Bioplastic materials can gradually work as a substitute for various materials based on fossil oil. The issue like sustainability and environmental challenges which occur due to manufacturing and disposal of synthetic plastics can be conquering by bio-based plastics. Feathers are among the most inexpensive abundant, and renewable protein sources. Feathers disposal to the landfills leads to environmental pollutions and it results into wastage of 90% of protein raw material. Keratin is non-burning hydrophilic, and biodegradable due to which it can be applicable in various ways via chemical processing. Main objective of this research is to synthesis bioplastic using keratin from chicken feathers. Extracted keratin solution mixed with different concentration of glycerol (2 to 10%) to produce plastic films. The mixture was stirred under constant magnetic stirring at 60 °C for 5 h. The mixtures are then poured into aluminum weighing boat and dried in an oven at 60 °C for 24 h. The mechanical properties of the samples were tested and the physic-chemical properties of the bioplastic were studied. According to the results, Scanning Electron Microscopy test showed good compatible morphologies without holes, cavity and edge. The difference in chemical composition was analyzed using Fourier transform infrared spectroscopy (FTIR). The samples were also characterized by thermo gravimetric analysis (TGA), differential scanning calorimetry (DSC), X-Ray diffraction (XRD) to check the thermal and crystallinity properties. Other than that, bioplastic made up from keratin with 2% of glycerol has the best mechanical and thermal properties. According to biodegradability test, all bioplastic produced are proven biodegradable. Therefore, the results showed possible application of the film as an alternative to fossil oil based materials which are harmful to the environment.
Collapse
Affiliation(s)
- Navina Ramakrishnan
- Faculty of Chemical Engineering and Natural Resources, Universiti Malaysia Pahang, Lebuhraya Tun Razak, 26300 Gambang, Pahang, Malaysia
| | - Swati Sharma
- Faculty of Chemical Engineering and Natural Resources, Universiti Malaysia Pahang, Lebuhraya Tun Razak, 26300 Gambang, Pahang, Malaysia.
| | - Arun Gupta
- Faculty of Chemical Engineering and Natural Resources, Universiti Malaysia Pahang, Lebuhraya Tun Razak, 26300 Gambang, Pahang, Malaysia.
| | - Basma Yahya Alashwal
- Faculty of Chemical Engineering and Natural Resources, Universiti Malaysia Pahang, Lebuhraya Tun Razak, 26300 Gambang, Pahang, Malaysia
| |
Collapse
|