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Pardo Cuervo OH, Rosas CA, Romanelli GP. Valorization of residual lignocellulosic biomass in South America: a review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:44575-44607. [PMID: 38954334 PMCID: PMC11255045 DOI: 10.1007/s11356-024-33968-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 06/07/2024] [Indexed: 07/04/2024]
Abstract
Residual lignocellulosic biomass (RLB) is a valuable resource that can help address environmental issues by serving as an alternative to fossil fuels and as a raw material for producing various value-added molecules. To gain a comprehensive understanding of the use of lignocellulosic waste in South America, a review was conducted over the last 4 years. The review focused on energy generation, biofuel production, obtaining platform molecules (such as ethanol, hydroxymethylfurfural, furfural, and levulinic acid), and other materials of interest. The review found that Brazil, Colombia, and Ecuador had the most RLB sources, with sugarcane, oil palm, and rice crop residues being the most prominent. In South America, RLB is used to produce biogas, syngas, hydrogen, bio-oil, biodiesel, torrefied biomass, pellets, and biomass briquettes. The most studied and produced value-added molecule was ethanol, followed by furfural, hydroxymethylfurfural, and levulinic acid. Other applications of interest that have been developed with RLB include obtaining activated carbon and nanomaterials. Significant progress has been made in South America in utilizing RLB, and some countries have been more proactive in regulating its use. However, there is still much to learn about the potential of RLB in each country. This review provides an updated perspective on the typification and valorization of residual biomass in South America and discusses the level of research and technology being applied in the region. This information can be helpful for future research on RLB in South America.
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Affiliation(s)
- Oscar H Pardo Cuervo
- Escuela de Ciencias Químicas, Facultad de Ciencias, Universidad Pedagógica y Tecnológica de Colombia UPTC, Avenida Central del Norte, Tunja, Boyacá, Colombia.
| | - Camila A Rosas
- Escuela de Ciencias Químicas, Facultad de Ciencias, Universidad Pedagógica y Tecnológica de Colombia UPTC, Avenida Central del Norte, Tunja, Boyacá, Colombia
| | - Gustavo P Romanelli
- Centro de Investigación y Desarrollo en Ciencias Aplicadas "Dr. Jorge J. Ronco" (CINDECA-CCT La Plata-CONICET), Universidad Nacional de La Plata, Calle 47 No 257, B1900AJK, La Plata, Argentina
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Torres FG, De-la-Torre GE. Synthesis, characteristics, and applications of modified starch nanoparticles: A review. Int J Biol Macromol 2022; 194:289-305. [PMID: 34863968 DOI: 10.1016/j.ijbiomac.2021.11.187] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 11/03/2021] [Accepted: 11/27/2021] [Indexed: 12/11/2022]
Abstract
Nowadays, starch nanoparticles (SNPs) are drawing attention to the scientific community due to their versatility and wide range of applications. Although several works have extensively addressed the SNP production routes, not much is discussed about the SNPs modification techniques, as well as the use of modified SNPs in typical and unconventional applications. Here, we focused on the SNP modification strategies and characteristics and performance of the resulting products, as well as their practical applications, while pointing out the main limitations and recommendations. We aim to guide researchers by identifying the next steps in this emerging line of research. SNPs esterification and oxidation are preferred chemical modifications, which result in changes in the functional groups. Moreover, additional polymers are incorporated into the SNP surface through copolymer grafting. Physical modification of starch has demonstrated similar changes in the functional groups without the need for toxic chemicals. Modified SNPs rendered differentiated properties, such as size, shape, crystallinity, hydrophobicity, and Zeta-potential. For multiple applications, tailoring the aforementioned properties is key to the performance of nanoparticle-based systems. However, the number of studies focusing on emerging applications is fairly limited, while their applications as drug delivery systems lack in vivo studies. The main challenges and prospects were discussed.
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Affiliation(s)
- Fernando G Torres
- Department of Mechanical Engineering, Pontificia Universidad Católica del Perú, Av. Universitaria 1801, Lima 15088, Peru.
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Haddad MB, De-la-Torre GE, Abelouah MR, Hajji S, Alla AA. Personal protective equipment (PPE) pollution associated with the COVID-19 pandemic along the coastline of Agadir, Morocco. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 798:149282. [PMID: 34332387 PMCID: PMC8313889 DOI: 10.1016/j.scitotenv.2021.149282] [Citation(s) in RCA: 60] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 07/17/2021] [Accepted: 07/22/2021] [Indexed: 05/19/2023]
Abstract
The increasing use of personal protective equipment (PPE) as a sanitary measure against the new coronavirus (SARS-CoV-2) has become a significant source of many environmental risks. The majority of the governments enforce the use of PPE in public areas, such as beaches. Thus, the use and disposal of PPE have compromised most solid waste management strategies, ultimately leading to the occurrence of PPE polluting the marine environment. The present study aimed to monitor the PPE pollution associated with COVID-19 along the coastline of Agadir, Morocco. In parallel, the influence of the activities carried out in each sampled beach before and after the lockdown break was reported. Overall, a total number of 689 PPE items were identified, with a mean density of 1.13 × 10-5 PPE m-2 (0-1.21 × 10-4 PPE m-2). The majority of the PPE items found were face masks (96.81%), out of which 98.4% were surgical masks and 1.6% were reusable cloth masks. The most polluted sites were the beaches with recreational activities, followed by surfing, and fishing as the main activity. Importantly, PPE density increased significantly after lockdown measures. Additionally, the discarded PPE sampled in the supralittoral zone was higher than PPE recorded in the intertidal zone. This confirms that PPE items are driven by the beachgoers during their visit. PPE items are a source of microplastic and chemical pollutants, a substrate to invasive species colonization, and a potential threat of entanglement, ingestion, and/or infection among apex predators. In the specific case of Agadir beaches, significant efforts are required to work on the lack of environmental awareness and education. It is recommended to improve beach cleaning strategies and to penalize incorrect PPE disposal. Additional alternatives may be adopted, as the involvement of biodegradable materials in PPE manufacturing, recycling through pyrolysis, and encouraging reusable and washable masks.
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Affiliation(s)
- Mohamed Ben Haddad
- Laboratory of Aquatic Systems: Marine and Continental Environments, Faculty of Sciences, Ibn Zohr University, Morocco
| | | | - Mohamed Rida Abelouah
- Laboratory of Aquatic Systems: Marine and Continental Environments, Faculty of Sciences, Ibn Zohr University, Morocco
| | - Sara Hajji
- Laboratory of Aquatic Systems: Marine and Continental Environments, Faculty of Sciences, Ibn Zohr University, Morocco
| | - Aicha Ait Alla
- Laboratory of Aquatic Systems: Marine and Continental Environments, Faculty of Sciences, Ibn Zohr University, Morocco
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Rakib MJ, Jolly YN, Dioses-Salinas DC, Pizarro-Ortega CI, De-la-Torre GE, Khandaker MU, Alsubaie A, Almalki ASA, Bradley DA. Macroalgae in biomonitoring of metal pollution in the Bay of Bengal coastal waters of Cox's Bazar and surrounding areas. Sci Rep 2021; 11:20999. [PMID: 34697391 PMCID: PMC8546050 DOI: 10.1038/s41598-021-99750-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 09/29/2021] [Indexed: 02/07/2023] Open
Abstract
Although coastal water marine algae have been popularly used by others as indicators of heavy metal pollution, data within the Bay of Bengal for the estuarine Cox's Bazar region and Saint Martin's Island has remained scarce. Using marine algae, the study herein forms an effort in biomonitoring of metal contamination in the aforementioned Bangladesh areas. A total of 10 seaweed species were collected, including edible varieties, analyzed for metal levels through the use of the technique of EDXRF. From greatest to least, measured mean metal concentrations in descending order have been found to be K > Fe > Zr > Br > Sr > Zn > Mn > Rb > Cu > As > Pb > Cr > Co. Potential toxic heavy metals such as Pb, As, and Cr appear at lower concentration values compared to that found for essential mineral elements. However, the presence of Pb in Sargassum oligocystum species has been observed to exceed the maximum international guidance level. Given that some of the algae species are cultivated for human consumption, the non-carcinogenic and carcinogenic indices were calculated, shown to be slightly lower than the maxima recommended by the international organizations. Overall, the present results are consistent with literature data suggesting that heavy metal macroalgae biomonitoring may be species-specific. To the best of our knowledge, this study represents the first comprehensive macroalgae biomonitoring study of metal contamination from the coastal waters of Cox's Bazar and beyond.
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Affiliation(s)
- Md.Refat Jahan Rakib
- grid.449503.f0000 0004 1798 7083Department of Fisheries and Marine Science, Faculty of Science, Noakhali Science and Technology University, Noakhali, Bangladesh
| | - Y. N. Jolly
- grid.466515.50000 0001 0744 4550Atmospheric and Environmental Chemistry Laboratory, Atomic Energy Centre, Dhaka, 1000 Bangladesh
| | | | - Carlos Ivan Pizarro-Ortega
- grid.441908.00000 0001 1969 0652Universidad San Ignacio de Loyola, Av. La Fontana 501, Lima 12, Lima, Peru
| | | | - Mayeen Uddin Khandaker
- grid.430718.90000 0001 0585 5508Centre for Applied Physics and Radiation Technologies, School of Engineering and Technology, Sunway University, 47500 Bandar Sunway, Selangor Malaysia
| | - Abdullah Alsubaie
- grid.412895.30000 0004 0419 5255Department of Physics, College of Khurma, Taif University, P.O. Box 11099, Taif, 21944 Saudi Arabia
| | - Abdulraheem S. A. Almalki
- grid.412895.30000 0004 0419 5255Department of Chemistry, Faculty of Science, Taif University, Taif, 21974 Saudi Arabia
| | - D. A. Bradley
- grid.430718.90000 0001 0585 5508Centre for Applied Physics and Radiation Technologies, School of Engineering and Technology, Sunway University, 47500 Bandar Sunway, Selangor Malaysia ,grid.5475.30000 0004 0407 4824Department of Physics, University of Surrey, Guildford, GU2 7XH UK
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García‐Rengifo AR, Rojas‐Bringas PM, De‐la‐Torre GE, Torres FG. Environmental impact of peanut skin‐reinforced native starch foams modified by acetylation. ACTA ACUST UNITED AC 2021. [DOI: 10.1002/tqem.21754] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Aldo R. García‐Rengifo
- Department of Mechanical Engineering Pontificia Universidad Catolica del Peru. Av. Universitaria 1801 Lima 15088 Peru
| | - Pedro M. Rojas‐Bringas
- Department of Mechanical Engineering Pontificia Universidad Catolica del Peru. Av. Universitaria 1801 Lima 15088 Peru
| | | | - Fernando G. Torres
- Department of Mechanical Engineering Pontificia Universidad Catolica del Peru. Av. Universitaria 1801 Lima 15088 Peru
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