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Ilieva Y, Zaharieva MM, Najdenski H, Kroumov AD. Antimicrobial Activity of Arthrospira (Former Spirulina) and Dunaliella Related to Recognized Antimicrobial Bioactive Compounds. Int J Mol Sci 2024; 25:5548. [PMID: 38791586 PMCID: PMC11122404 DOI: 10.3390/ijms25105548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2024] [Revised: 05/10/2024] [Accepted: 05/15/2024] [Indexed: 05/26/2024] Open
Abstract
With the increasing rate of the antimicrobial resistance phenomenon, natural products gain our attention as potential drug candidates. Apart from being used as nutraceuticals and for biotechnological purposes, microalgae and phytoplankton have well-recognized antimicrobial compounds and proved anti-infectious potential. In this review, we comprehensively outline the antimicrobial activity of one genus of cyanobacteria (Arthrospira, formerly Spirulina) and of eukaryotic microalgae (Dunaliella). Both, especially Arthrospira, are mostly used as nutraceuticals and as a source of antioxidants for health supplements, cancer therapy and cosmetics. Their diverse bioactive compounds provide other bioactivities and potential for various medical applications. Their antibacterial and antifungal activity vary in a broad range and are strain specific. There are strains of Arthrospira platensis with very potent activity and minimum inhibitory concentrations (MICs) as low as 2-15 µg/mL against bacterial fish pathogens including Bacillus and Vibrio spp. Arthrospira sp. has demonstrated an inhibition zone (IZ) of 50 mm against Staphylococcus aureus. Remarkable is the substantial amount of in vivo studies of Arthrospira showing it to be very promising for preventing vibriosis in shrimp and Helicobacter pylori infection and for wound healing. The innovative laser irradiation of the chlorophyll it releases can cause photodynamic destruction of bacteria. Dunaliella salina has exhibited MIC values lower than 300 µg/mL and an IZ value of 25.4 mm on different bacteria, while Dunaliella tertiolecta has demonstrated MIC values of 25 and 50 μg/mL against some Staphylococcus spp. These values fulfill the criteria for significant antimicrobial activity and sometimes are comparable or exceed the activity of the control antibiotics. The bioactive compounds which are responsible for that action are fatty acids including PUFAs, polysaccharides, glycosides, peptides, neophytadiene, etc. Cyanobacteria, such as Arthrospira, also particularly have antimicrobial flavonoids, terpenes, alkaloids, saponins, quinones and some unique-to-them compounds, such as phycobiliproteins, polyhydroxybutyrate, the peptide microcystin, etc. These metabolites can be optimized by using stress factors in a two-step process of fermentation in closed photobioreactors (PBRs).
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Affiliation(s)
| | | | | | - Alexander Dimitrov Kroumov
- Department of Infectious Microbiology, The Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, 26 Acad. G. Bonchev Str., 1113 Sofia, Bulgaria; (Y.I.); (M.M.Z.); (H.N.)
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2
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Natural antimicrobial systems protected by complex polyhydroxyalkanoate matrices for food biopackaging applications - A review. Int J Biol Macromol 2023; 233:123418. [PMID: 36731700 DOI: 10.1016/j.ijbiomac.2023.123418] [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: 10/18/2022] [Revised: 01/15/2023] [Accepted: 01/21/2023] [Indexed: 02/01/2023]
Abstract
Interest is growing in entrapping natural antimicrobial compounds (NACs) within polyhydroxyalkanoates (PHAs) to produce active food-biopackaging systems. PHAs are versatile polymeric macromolecules that can protect NAC activity by entrapment. This work reviews 75 original papers and 18 patents published in the last 11 years concerning PHAs as matrices for NACs to summarize the physicochemical properties, release, and antimicrobial activities of systems fabricated from PHAs and NACs (PHA/NAC systems). PHA/NAC systems have recently been used as active food biopackaging systems to inactivate foodborne pathogens and prolong food shelf life. PHAs protect NACs by increasing the degradation temperature of some NACs and decreasing their loss of mass when heated. Some NACs also transform the PHA/NAC systems into more thermostable, flexible, and resistant when interacting with PHAs while also improving the barrier properties of the systems. NAC release and activity are also prolonged when NACs are trapped within PHAs. PHA/NAC systems, therefore, represent ecologically friendly materials with promising applications.
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Castro-Enríquez D, Miranda JM, Trigo M, Rodríguez-Félix F, Aubourg SP, Barros-Velázquez J. Antioxidant and Antimicrobial Effect of Biodegradable Films Containing Pitaya (Stenocereus thurberi) Extracts during the Refrigerated Storage of Fish. Antioxidants (Basel) 2023; 12:antiox12030544. [PMID: 36978792 PMCID: PMC10044973 DOI: 10.3390/antiox12030544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 02/16/2023] [Accepted: 02/18/2023] [Indexed: 02/24/2023] Open
Abstract
This study focused on the quality loss inhibition of fish muscle during refrigerated storage. Two parallel experiments were carried out that were focused on the employment of pitaya (Stenocereus thurberi) extracts in biodegradable packing films. On the one hand, a pitaya–gelatin film was employed for hake (Merluccius merluccius) muscle storage. On the other hand, a pitaya–polylactic acid (PLA) film was used for Atlantic mackerel (Scomber scombrus) muscle storage. In both experiments, fish-packing systems were stored at 4 °C for 8 days. Quality loss was determined by lipid damage and microbial activity development. The presence of the pitaya extract led to an inhibitory effect (p < 0.05) on peroxide, fluorescent compound, and free fatty acid (FFA) values in the gelatin–hake system and to a lower (p < 0.05) formation of thiobarbituric acid reactive substances, fluorescent compounds, and FFAs in the PLA–mackerel system. Additionally, the inclusion of pitaya extracts in the packing films slowed down (p < 0.05) the growth of aerobes, anaerobes, psychrotrophs, and proteolytic bacteria in the case of the pitaya–gelatin films and of aerobes, anaerobes, and proteolytic bacteria in the case of pitaya–PLA films. The current preservative effects are explained on the basis of the preservative compound presence (betalains and phenolic compounds) in the pitaya extracts.
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Affiliation(s)
- Daniela Castro-Enríquez
- Departamento de Investigación y Posgrado en Alimentos, University of Sonora, Hermosillo 83100, Sonora, Mexico
| | - José M. Miranda
- Departamento de Química Analítica, Nutrición y Ciencia de los Alimentos, Facultad de Ciencias Veterinarias, Universidad de Santiago de Compostela, 27002 Lugo, Spain
| | - Marcos Trigo
- Departamento de Ciencia y Tecnología de Alimentos, Instituto de Investigaciones Marinas (CSIC), 36208 Vigo, Spain
| | - Francisco Rodríguez-Félix
- Departamento de Investigación y Posgrado en Alimentos, University of Sonora, Hermosillo 83100, Sonora, Mexico
- Correspondence: (F.R.-F.); (S.P.A.)
| | - Santiago P. Aubourg
- Departamento de Ciencia y Tecnología de Alimentos, Instituto de Investigaciones Marinas (CSIC), 36208 Vigo, Spain
- Correspondence: (F.R.-F.); (S.P.A.)
| | - Jorge Barros-Velázquez
- Departamento de Química Analítica, Nutrición y Ciencia de los Alimentos, Facultad de Ciencias Veterinarias, Universidad de Santiago de Compostela, 27002 Lugo, Spain
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4
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Martins R, Sales H, Pontes R, Nunes J, Gouveia I. Food Wastes and Microalgae as Sources of Bioactive Compounds and Pigments in a Modern Biorefinery: A Review. Antioxidants (Basel) 2023; 12:antiox12020328. [PMID: 36829887 PMCID: PMC9952682 DOI: 10.3390/antiox12020328] [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: 12/29/2022] [Revised: 01/18/2023] [Accepted: 01/26/2023] [Indexed: 02/04/2023] Open
Abstract
The United Nations 2030 Agenda for Sustainable Development has created more pressure on countries and society at large for the development of alternative solutions for synthetic and fossil fuel derived products, thus mitigating climate change and environmental hazards. Food wastes and microalgae have been studied for decades as potential sources of several compounds that could be employed in various fields of application from pharmaceutical to textile and packaging. Although multiple research efforts have been put towards extracting rich compounds (i.e., phenolic compounds, tocopherols, and tocotrienols) from these sources, they still remain overlooked as two major sources of bioactive compounds and pigments, mainly due to inefficient extraction processes. Hence, there is a growing need for the development of optimized extraction methods while employing non-organic solvent options following the main principles of green chemistry. This review will focus on delivering a clear and deep analysis on the existing procedures for obtaining bioactive compounds and pigments from food wastes derived from the most consumed and produced fruit crops in the world such as apples, oranges, cherries, almonds, and mangoes, and microalgal biomass, while giving light to the existing drawbacks in need to be solved in order to take full advantage of the rich properties present in these two major biorefinery sources.
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Affiliation(s)
- Rodrigo Martins
- Association BLC3—Technology and Innovation Campus, Centre Bio R&D Unit, Oliveira do Hospital, 3405-155 Coimbra, Portugal
- FibEnTech Research Unit, Faculty of Engineering, University of Beira Interior, 6200-001 Covilhã, Portugal
| | - Hélia Sales
- Association BLC3—Technology and Innovation Campus, Centre Bio R&D Unit, Oliveira do Hospital, 3405-155 Coimbra, Portugal
| | - Rita Pontes
- Association BLC3—Technology and Innovation Campus, Centre Bio R&D Unit, Oliveira do Hospital, 3405-155 Coimbra, Portugal
| | - João Nunes
- Association BLC3—Technology and Innovation Campus, Centre Bio R&D Unit, Oliveira do Hospital, 3405-155 Coimbra, Portugal
- BLC3 Evolution Lda, Oliveira do Hospital, 3405-155 Coimbra, Portugal
| | - Isabel Gouveia
- FibEnTech Research Unit, Faculty of Engineering, University of Beira Interior, 6200-001 Covilhã, Portugal
- Correspondence: ; Tel.: +35-127-531-9825
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Prakash P, Lee WH, Loo CY, Wong HSJ, Parumasivam T. Advances in Polyhydroxyalkanoate Nanocarriers for Effective Drug Delivery: An Overview and Challenges. NANOMATERIALS 2022; 12:nano12010175. [PMID: 35010124 PMCID: PMC8746483 DOI: 10.3390/nano12010175] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 12/06/2021] [Accepted: 12/07/2021] [Indexed: 01/10/2023]
Abstract
Polyhydroxyalkanoates (PHAs) are natural polymers produced under specific conditions by certain organisms, primarily bacteria, as a source of energy. These up-and-coming bioplastics are an undeniable asset in enhancing the effectiveness of drug delivery systems, which demand characteristics like non-immunogenicity, a sustained and controlled drug release, targeted delivery, as well as a high drug loading capacity. Given their biocompatibility, biodegradability, modifiability, and compatibility with hydrophobic drugs, PHAs often provide a superior alternative to free drug therapy or treatments using other polymeric nanocarriers. The many formulation methods of existing PHA nanocarriers, such as emulsion solvent evaporation, nanoprecipitation, dialysis, and in situ polymerization, are explained in this review. Due to their flexibility that allows for a vessel tailormade to its intended application, PHA nanocarriers have found their place in diverse therapy options like anticancer and anti-infective treatments, which are among the applications of PHA nanocarriers discussed in this article. Despite their many positive attributes, the advancement of PHA nanocarriers to clinical trials of drug delivery applications has been stunted due to the polymers’ natural hydrophobicity, controversial production materials, and high production costs, among others. These challenges are explored in this review, alongside their existing solutions and alternatives.
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Affiliation(s)
- Priyanka Prakash
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, Minden 11800, Penang, Malaysia;
| | - Wing-Hin Lee
- Faculty of Pharmacy and Health Sciences, Royal College of Medicine Perak, Universiti Kuala Lumpur (RCMP UniKL), Ipoh 30450, Perak, Malaysia; (W.-H.L.); (C.-Y.L.)
| | - Ching-Yee Loo
- Faculty of Pharmacy and Health Sciences, Royal College of Medicine Perak, Universiti Kuala Lumpur (RCMP UniKL), Ipoh 30450, Perak, Malaysia; (W.-H.L.); (C.-Y.L.)
| | - Hau Seung Jeremy Wong
- School of Biological Sciences, Universiti Sains Malaysia, Minden 11800, Penang, Malaysia;
| | - Thaigarajan Parumasivam
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, Minden 11800, Penang, Malaysia;
- Correspondence: ; Tel.: +60-4-6577888
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6
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Antimicrobial and antioxidant effect of lyophilized Fucus spiralis addition on gelatin film during refrigerated storage of mackerel. Food Control 2022. [DOI: 10.1016/j.foodcont.2021.108416] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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7
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Pawłowska A, Stepczyńska M. Natural Biocidal Compounds of Plant Origin as Biodegradable Materials Modifiers. JOURNAL OF POLYMERS AND THE ENVIRONMENT 2022; 30:1683-1708. [PMID: 34720776 PMCID: PMC8541817 DOI: 10.1007/s10924-021-02315-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 10/15/2021] [Indexed: 05/07/2023]
Abstract
The article presents a literature review of the plant origin natural compounds with biocidal properties. These compounds could be used as modifiers of biodegradable materials. Modification of polymer material is one of the basic steps in its manufacturing process. Biodegradable materials play a key role in the current development of materials engineering. Natural modifiers are non-toxic, environmentally friendly, and renewable. The substances contained in natural modifiers exhibit biocidal properties against bacteria and/or fungi. The article discusses polyphenols, selected phenols, naphthoquinones, triterpenoids, and phytoncides that are natural antibiotics. Due to the increasing demand for biodegradable materials and the protection of the natural environment against the negative effects of toxic substances, it is crucial to replace synthetic modifiers with plant ones. This work mentions industries where materials containing natural modifying additives could find potential applications. Moreover, the probable examples of the final products are presented. Additionally, the article points out the current world's pandemic state and the use of materials with biocidal properties considering the epidemiological conditions.
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Affiliation(s)
- Alona Pawłowska
- Department of Materials Engineering, Kazimierz Wielki University, J.K. Chodkiewicza 30 street, 85-064 Bydgoszcz, Poland
| | - Magdalena Stepczyńska
- Department of Materials Engineering, Kazimierz Wielki University, J.K. Chodkiewicza 30 street, 85-064 Bydgoszcz, Poland
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8
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Zhao X, Niu Y, Mi C, Gong H, Yang X, Cheng J, Zhou Z, Liu J, Peng X, Wei D. Electrospinning nanofibers of microbial polyhydroxyalkanoates for applications in medical tissue engineering. JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1002/pol.20210418] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Xiao‐Hong Zhao
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, School of Medicine, Department of Life Sciences and Medicine Northwest University Xi'an China
| | - Yi‐Nuo Niu
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, School of Medicine, Department of Life Sciences and Medicine Northwest University Xi'an China
| | - Chen‐Hui Mi
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, School of Medicine, Department of Life Sciences and Medicine Northwest University Xi'an China
| | - Hai‐Lun Gong
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, School of Medicine, Department of Life Sciences and Medicine Northwest University Xi'an China
| | - Xin‐Yu Yang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, School of Medicine, Department of Life Sciences and Medicine Northwest University Xi'an China
| | - Ji‐Si‐Yu Cheng
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, School of Medicine, Department of Life Sciences and Medicine Northwest University Xi'an China
| | - Zi‐Qi Zhou
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, School of Medicine, Department of Life Sciences and Medicine Northwest University Xi'an China
| | - Jia‐Xuan Liu
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, School of Medicine, Department of Life Sciences and Medicine Northwest University Xi'an China
| | - Xue‐Liang Peng
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, School of Medicine, Department of Life Sciences and Medicine Northwest University Xi'an China
| | - Dai‐Xu Wei
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, School of Medicine, Department of Life Sciences and Medicine Northwest University Xi'an China
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9
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Mourão MM, Xavier LP, Urbatzka R, Figueiroa LB, da Costa CEF, Dias CGBT, Schneider MPC, Vasconcelos V, Santos AV. Characterization and Biotechnological Potential of Intracellular Polyhydroxybutyrate by Stigeoclonium sp. B23 Using Cassava Peel as Carbon Source. Polymers (Basel) 2021; 13:polym13050687. [PMID: 33668862 PMCID: PMC7956423 DOI: 10.3390/polym13050687] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Revised: 02/15/2021] [Accepted: 02/17/2021] [Indexed: 12/19/2022] Open
Abstract
The possibility of utilizing lignocellulosic agro-industrial waste products such as cassava peel hydrolysate (CPH) as carbon sources for polyhydroxybutyrate (PHB) biosynthesis and characterization by Amazonian microalga Stigeoclonium sp. B23. was investigated. Cassava peel was hydrolyzed to reducing sugars to obtain increased glucose content with 2.56 ± 0.07 mmol/L. Prior to obtaining PHB, Stigeoclonium sp. B23 was grown in BG-11 for characterization and Z8 media for evaluation of PHB nanoparticles' cytotoxicity in zebrafish embryos. As results, microalga produced the highest amount of dry weight of PHB with 12.16 ± 1.28 (%) in modified Z8 medium, and PHB nanoparticles exerted some toxicity on zebrafish embryos at concentrations of 6.25-100 µg/mL, increased mortality (<35%) and lethality indicators as lack of somite formation (<25%), non-detachment of tail, and lack of heartbeat (both <15%). Characterization of PHB by scanning electron microscopy (SEM), X-ray diffraction (XRD), differential scanning calorimeter (DSC), and thermogravimetry (TGA) analysis revealed the polymer obtained from CPH cultivation to be morphologically, thermally, physically, and biologically acceptable and promising for its use as a biomaterial and confirmed the structure of the polymer as PHB. The findings revealed that microalgal PHB from Stigeoclonium sp. B23 was a promising and biologically feasible new option with high commercial value, potential for biomaterial applications, and also suggested the use of cassava peel as an alternative renewable resource of carbon for PHB biosynthesis and the non-use of agro-industrial waste and dumping concerns.
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Affiliation(s)
- Murilo Moraes Mourão
- Laboratory of Biotechnology of Enzymes and Biotransformations, Institute of Biological Sciences, Federal University of Pará, 66075-110 Belém, Pará, Brazil;
- Correspondence: (M.M.M.); (A.V.S.)
| | - Luciana Pereira Xavier
- Laboratory of Biotechnology of Enzymes and Biotransformations, Institute of Biological Sciences, Federal University of Pará, 66075-110 Belém, Pará, Brazil;
| | - Ralph Urbatzka
- Interdisciplinary Centre of Marine and Environmental Research—CIIMAR, University of Porto, 4450-208 Porto, Portugal; (R.U.); (V.V.)
| | - Lucas Barbosa Figueiroa
- Laboratory of Oils of the Amazon, Guamá Science and Technology Park, Federal University of Pará, 66075-750 Belém, Pará, Brazil; (L.B.F.); (C.E.F.d.C.)
| | - Carlos Emmerson Ferreira da Costa
- Laboratory of Oils of the Amazon, Guamá Science and Technology Park, Federal University of Pará, 66075-750 Belém, Pará, Brazil; (L.B.F.); (C.E.F.d.C.)
| | | | | | - Vitor Vasconcelos
- Interdisciplinary Centre of Marine and Environmental Research—CIIMAR, University of Porto, 4450-208 Porto, Portugal; (R.U.); (V.V.)
- Department of Biology, Faculty of Sciences, University of Porto, 4069-007 Porto, Portugal
| | - Agenor Valadares Santos
- Laboratory of Biotechnology of Enzymes and Biotransformations, Institute of Biological Sciences, Federal University of Pará, 66075-110 Belém, Pará, Brazil;
- Correspondence: (M.M.M.); (A.V.S.)
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Manikandan NA, Pakshirajan K, Pugazhenthi G. A closed-loop biorefinery approach for polyhydroxybutyrate (PHB) production using sugars from carob pods as the sole raw material and downstream processing using the co-product lignin. BIORESOURCE TECHNOLOGY 2020; 307:123247. [PMID: 32234592 DOI: 10.1016/j.biortech.2020.123247] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 03/20/2020] [Accepted: 03/23/2020] [Indexed: 06/11/2023]
Abstract
A novel closed-loop biorefinery model using carob pods as the feed material was developed for PHB production. The carob pods were delignified, and as the second step, sugars present in the delignified carob pods were extracted using water. Ralstonia eutropha and Bacillus megaterium were cultivated on the carob pod extract and its performance was evaluated using Taguchi experimental design. R. eutropha outperformed the B. megaterium in terms of its capability to grow at a maximum initial sugar concentration of 40 g L-1 with a maximum PHB production of 12.2 g L-1. Finally, the concentrated lignin from the first step was diluted with different proportion of chloroform to extract PHB from the bacterial biomass. The PHB yield and purity obtained were more than 90% respectively using either R. eutropha or B. megaterium. Properties of the PHB produced in this study were examined to establish its application potential.
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Affiliation(s)
- N Arul Manikandan
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Kannan Pakshirajan
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - G Pugazhenthi
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India.
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11
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Stejskal N, Miranda JM, Martucci JF, Ruseckaite RA, Barros-Velázquez J, Aubourg SP. Quality Enhancement of Refrigerated Hake Muscle by Active Packaging with a Protein Concentrate from Spirulina platensis. FOOD BIOPROCESS TECH 2020. [DOI: 10.1007/s11947-020-02468-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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12
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Development and Characterization of Electrospun Nanostructures Using Polyethylene Oxide: Potential Means for Incorporation of Bioactive Compounds. COLLOIDS AND INTERFACES 2020. [DOI: 10.3390/colloids4020014] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The development of processes for stabilization of the properties of bioactive compounds has been studied in recent years, and the use of nanotechnology is among the most discussed routes. The present work addressed the assembly of nanostructures using polyethylene oxide (PEO), the production of core-shell nanofibers (NFs) with bioactive compounds, and the evaluation of their microscopic and physical characteristics. Aqueous solutions of PEO were electrospun by varying different process and solution parameters (PEO and NaCl concentrations, feeding rate, the tip-to-collector distance (TCD), and applied voltage) in order to optimize production of nanostructures. The best condition obtained was evaluated to form core-shell NFs composed by jussara pulp as a source of anthocyanins. To assess the production of NFs with PEO and jussara pulp, feed solutions were prepared in acetate buffer (pH 4.5) with 6% PEO and 10% lyophilized jussara pulp, at a feeding rate of 150 μL·h−1 and TCD of 15 cm using an applied voltage of 10 kV to form core-shell NFs. The results revealed the formation of core-shell NFs with a diameter of 126.5 ± 50.0 nm. The outcomes achieved represent a crucial step in the application of anthocyanins in food systems as pigments, establishing a basis for further research on the incorporation of nanomaterials into foodstuff.
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Topuz F, Uyar T. Antioxidant, antibacterial and antifungal electrospun nanofibers for food packaging applications. Food Res Int 2020; 130:108927. [DOI: 10.1016/j.foodres.2019.108927] [Citation(s) in RCA: 81] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2019] [Revised: 12/07/2019] [Accepted: 12/15/2019] [Indexed: 12/19/2022]
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Stojanov S, Berlec A. Electrospun Nanofibers as Carriers of Microorganisms, Stem Cells, Proteins, and Nucleic Acids in Therapeutic and Other Applications. Front Bioeng Biotechnol 2020; 8:130. [PMID: 32158751 PMCID: PMC7052008 DOI: 10.3389/fbioe.2020.00130] [Citation(s) in RCA: 79] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Accepted: 02/10/2020] [Indexed: 11/13/2022] Open
Abstract
Electrospinning is a technique that uses polymer solutions and strong electric fields to produce nano-sized fibers that have wide-ranging applications. We present here an overview of the use of electrospinning to incorporate biological products into nanofibers, including microorganisms, cells, proteins, and nucleic acids. Although the conditions used during electrospinning limit the already problematic viability/stability of such biological products, their effective incorporation into nanofibers has been shown to be feasible. Synthetic polymers have been more frequently applied to make nanofibers than natural polymers. Polymer blends are commonly used to achieve favorable physical properties of nanofibers. The majority of nanofibers that contain biological product have been designed for therapeutic applications. The incorporation of these biological products into nanofibers can promote their stability or viability, and also allow their delivery to a desired tissue or organ. Other applications include plant protection in agriculture, fermentation in the food industry, biocatalytic environmental remediation, and biosensing. Live cells that have been incorporated into nanofibers include bacteria and fungi. Nanofibers have served as scaffolds for stem cells seeded on a surface, to enable their delivery and application in tissue regeneration and wound healing. Viruses incorporated into nanofibers have been used in gene delivery, as well as in therapies against bacterial infections and cancers. Proteins (hormones, growth factors, and enzymes) and nucleic acids (DNA and RNA) have been incorporated into nanofibers, mainly to treat diseases and enhance their stability. To summarize, incorporation of biological products into nanofibers has numerous advantages, such as providing protection and facilitating controlled delivery from a solid form with a large surface area. Future studies should address the challenge of transferring nanofibers with biological products into practical and industrial use.
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Affiliation(s)
- Spase Stojanov
- Department of Biotechnology, Jožef Stefan Institute, Ljubljana, Slovenia
- Faculty of Pharmacy, University of Ljubljana, Ljubljana, Slovenia
| | - Aleš Berlec
- Department of Biotechnology, Jožef Stefan Institute, Ljubljana, Slovenia
- Faculty of Pharmacy, University of Ljubljana, Ljubljana, Slovenia
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15
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Silva CKD, Mastrantonio DJDS, Costa JAV, Morais MGD. Innovative pH sensors developed from ultrafine fibers containing açaí (Euterpe oleracea) extract. Food Chem 2019; 294:397-404. [DOI: 10.1016/j.foodchem.2019.05.059] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 04/23/2019] [Accepted: 05/07/2019] [Indexed: 12/19/2022]
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Aydogdu A, Yildiz E, Aydogdu Y, Sumnu G, Sahin S, Ayhan Z. Enhancing oxidative stability of walnuts by using gallic acid loaded lentil flour based electrospun nanofibers as active packaging material. Food Hydrocoll 2019. [DOI: 10.1016/j.foodhyd.2019.04.020] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Walnut Shell Powder Can Limit Acid Mine Drainage Formation by Shaping the Bacterial Community Structure. Curr Microbiol 2019; 76:1199-1206. [PMID: 31278425 DOI: 10.1007/s00284-019-01734-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Accepted: 07/01/2019] [Indexed: 01/04/2023]
Abstract
The formation of acid mine drainage (AMD), which results from the oxidation of sulfur minerals by air and water, can be accelerated by acidophilic and chemolithotrophic bacteria such as Acidithiobacillus ferrooxidans. Our previous study revealed that walnut shell powder and its phenolic component inhibit the growth of A. ferrooxidans. However, their inhibitory effect on AMD formation in the environment needs verification. We established a bioleaching system to test whether walnut shell powder and its phenolic component can limit AMD formation. Our results showed that lignin and cellulose isolated from walnut shell decreased metal ion concentrations through absorption, whereas the phenolic component increased pH by downregulating the expression of Fe2+-oxidizing genes and rus operon genes of A. ferrooxidans. Only walnut shell powder showed an excellent ability to curb AMD by binding metal ions and increasing the pH value. On probing deeper into the alteration of the bacterial community structure in the bioleaching system, we found that the bacterial community became more diverse-the amount of A. ferrooxidans decreased and that of some non-acidophilic bacteria increased. The bacterial community in samples treated with walnut shell powder or its phenolic component had low abundance in the pathways of metabolism and energy production, as determined by phylogenetic investigation of communities by reconstruction of unobserved states (PICRUSt). In other words, preponderant microbes, mainly A. ferrooxidans, lacked energy to grow well in the treated samples. Our findings provide a practical applicability of walnut shell powder to reduce leaching from a complex environmental community.
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Use of electrospinning technique to produce nanofibres for food industries: A perspective from regulations to characterisations. Trends Food Sci Technol 2019. [DOI: 10.1016/j.tifs.2019.01.006] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Huang Y, Mei L, Chen X, Wang Q. Recent Developments in Food Packaging Based on Nanomaterials. NANOMATERIALS (BASEL, SWITZERLAND) 2018; 8:E830. [PMID: 30322162 PMCID: PMC6215134 DOI: 10.3390/nano8100830] [Citation(s) in RCA: 82] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 09/29/2018] [Accepted: 10/08/2018] [Indexed: 01/27/2023]
Abstract
The increasing demand for high food quality and safety, and concerns of environment sustainable development have been encouraging researchers in the food industry to exploit the robust and green biodegradable nanocomposites, which provide new opportunities and challenges for the development of nanomaterials in the food industry. This review paper aims at summarizing the recent three years of research findings on the new development of nanomaterials for food packaging. Two categories of nanomaterials (i.e., inorganic and organic) are included. The synthetic methods, physical and chemical properties, biological activity, and applications in food systems and safety assessments of each nanomaterial are presented. This review also highlights the possible mechanisms of antimicrobial activity against bacteria of certain active nanomaterials and their health concerns. It concludes with an outlook of the nanomaterials functionalized in food packaging.
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Affiliation(s)
- Yukun Huang
- School of Food and Bioengineering, Xihua University, Chengdu, Sichuan 610039, China.
| | - Lei Mei
- Department of Nutrition and Food Science, College of Agriculture and Natural Resources, University of Maryland, College Park, MD 20740, USA.
| | - Xianggui Chen
- School of Food and Bioengineering, Xihua University, Chengdu, Sichuan 610039, China.
| | - Qin Wang
- School of Food and Bioengineering, Xihua University, Chengdu, Sichuan 610039, China.
- Department of Nutrition and Food Science, College of Agriculture and Natural Resources, University of Maryland, College Park, MD 20740, USA.
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Shi B, Zhang L, Liang L, Ban J. Biodegradable spirulina extract/polycaprolactone porous scaffolds. NEW J CHEM 2018. [DOI: 10.1039/c8nj01617h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Hydrophilicity, pores with interconnected structures, and degradability are important properties of tissue engineering scaffolds.
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Affiliation(s)
- Bo Shi
- School of Chemical Engineering
- Guangdong University of Petrochemical Technology
- Maoming
- China
| | - Liming Zhang
- School of Chemistry and Chemical Engineering
- Sun Yat-Sen University
- Guangzhou
- China
| | - Liang Liang
- School of Chemical Engineering
- Guangdong University of Petrochemical Technology
- Maoming
- China
| | - Jianfeng Ban
- School of Chemical Engineering
- Guangdong University of Petrochemical Technology
- Maoming
- China
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