Applied Science and Engineering Progress最新文献_第2页

Watermelon (Citrullus lanatus) Rind Extract-Mediated Synthesis of Manganese (II, III) Oxide Nanoparticles for Potential Theranostic Applications 西瓜（Citrullus lanatus）皮提取物介导的氧化锰（II，III）纳米粒子的合成，用于潜在的治疗应用

Applied Science and Engineering Progress Pub Date : 2024-02-07 DOI: 10.14416/j.asep.2024.02.002

Gelo P. Zaragosa, Carlo Nonato D. Ilem, Joel Garcia

{"title":"Watermelon (Citrullus lanatus) Rind Extract-Mediated Synthesis of Manganese (II, III) Oxide Nanoparticles for Potential Theranostic Applications","authors":"Gelo P. Zaragosa, Carlo Nonato D. Ilem, Joel Garcia","doi":"10.14416/j.asep.2024.02.002","DOIUrl":"https://doi.org/10.14416/j.asep.2024.02.002","url":null,"abstract":"Plant extracts and microorganisms are widely utilized for the green synthesis of Mn3O4 nanoparticles. In this study, green synthesis of Mn3O4 nanoparticles for theranostic applications was performed using watermelon (Citrullus lanatus) rind extract as a reducing and stabilizing agent. The UV-visible absorption of the nanoparticles at 196 nm is associated with the surface plasmon resonance of Mn3O4 nanoparticles. FT-IR spectra presented the key chemical functional groups associated with the Mn–O vibrations and phytoconstituents of the watermelon rind extract. XRD analysis revealed the single-phase hausmannite crystalline structure of the Mn3O4 nanoparticles with an average crystallite size of 35.2 nm. SEM and TEM images of the synthesized Mn3O4 nanoparticles showed quasi-spherical shapes and a core size of 52.90 ± 8.19 nm and 35.89 ± 0.83 nm, respectively. EDS analysis indicated that the nanoparticles mainly comprised Mn, O, and C. Furthermore, the radical scavenging activity through the DPPH assay showed that the nanoparticles have significant antioxidant therapeutic potential, with an IC50 value of 20.62 ± 0.69 ppm. T1 and T2 relaxivities of Mn3O4 nanoparticles were 5.34 ± 0.11 mM–1s–1 and 63.47 ± 0.60 mM–1s–1, respectively, when measured at a clinically relevant field strength of 1.5 T, confirming their suitability as an MRI contrast agent for diagnostic imaging. These findings imply that the green synthesized Mn3O4 nanoparticles could be used as a theranostic agent for MRI applications.","PeriodicalId":503211,"journal":{"name":"Applied Science and Engineering Progress","volume":"99 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139857906","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of Acetic Acid Pretreatment and its Residue on Bioethanol and Biogas Production from Water Hyacinth 醋酸预处理及其残留物对风信子生物乙醇和沼气生产的影响

Applied Science and Engineering Progress Pub Date : 2024-02-02 DOI: 10.14416/j.asep.2024.02.001

Diana Jose, A. Tawai, D. Divakaran, M. Sriariyanun, V. Phakeenuya, Yu-Shen Cheng, P. Tantayotai

{"title":"Influence of Acetic Acid Pretreatment and its Residue on Bioethanol and Biogas Production from Water Hyacinth","authors":"Diana Jose, A. Tawai, D. Divakaran, M. Sriariyanun, V. Phakeenuya, Yu-Shen Cheng, P. Tantayotai","doi":"10.14416/j.asep.2024.02.001","DOIUrl":"https://doi.org/10.14416/j.asep.2024.02.001","url":null,"abstract":"Water hyacinth, an invasive species in natural water habitats, poses ecological challenges but also holds promise as a biofuel resource due to its abundant biomass. To optimize sugar yield for biofuel production, this study focuses on pretreating water hyacinth with acetic acid (AC) using Response Surface Methodology (RSM). Comparing AC, hydrochloric acid (HA), and untreated samples, AC-pretreated samples yielded the highest sugar content at 28.26 g/100 g of biomass, nearly 1.97 times higher than that of untreated samples. Additionally, AC-pretreated samples produced the maximum biogas (2573 mL) after 45 days of anaerobic digestion, while HA pretreatment yielded the highest ethanol production (9.32 g/L) within 48 h. The structural changes in the pretreated and untreated water hyacinth samples were compared using FTIR analysis, and the results showed that the pretreatment approaches exposed more cellulose to hydrolysis. Furthermore, the study investigated the impact of post-washing following acid pretreatment of water hyacinth and discovered that AC residues had no adverse effects, suggesting that the post-washing phase was unnecessary for ethanol production. These findings demonstrate that AC pretreatment can effectively enhance hydrolysis and biofuel production and that eliminating post-washing may reduce wastewater generated during the pretreatment process.","PeriodicalId":503211,"journal":{"name":"Applied Science and Engineering Progress","volume":"46 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139868566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of Acetic Acid Pretreatment and its Residue on Bioethanol and Biogas Production from Water Hyacinth 醋酸预处理及其残留物对风信子生物乙醇和沼气生产的影响

Applied Science and Engineering Progress Pub Date : 2024-02-02 DOI: 10.14416/j.asep.2024.02.001

Diana Jose, A. Tawai, D. Divakaran, M. Sriariyanun, V. Phakeenuya, Yu-Shen Cheng, P. Tantayotai

{"title":"Influence of Acetic Acid Pretreatment and its Residue on Bioethanol and Biogas Production from Water Hyacinth","authors":"Diana Jose, A. Tawai, D. Divakaran, M. Sriariyanun, V. Phakeenuya, Yu-Shen Cheng, P. Tantayotai","doi":"10.14416/j.asep.2024.02.001","DOIUrl":"https://doi.org/10.14416/j.asep.2024.02.001","url":null,"abstract":"Water hyacinth, an invasive species in natural water habitats, poses ecological challenges but also holds promise as a biofuel resource due to its abundant biomass. To optimize sugar yield for biofuel production, this study focuses on pretreating water hyacinth with acetic acid (AC) using Response Surface Methodology (RSM). Comparing AC, hydrochloric acid (HA), and untreated samples, AC-pretreated samples yielded the highest sugar content at 28.26 g/100 g of biomass, nearly 1.97 times higher than that of untreated samples. Additionally, AC-pretreated samples produced the maximum biogas (2573 mL) after 45 days of anaerobic digestion, while HA pretreatment yielded the highest ethanol production (9.32 g/L) within 48 h. The structural changes in the pretreated and untreated water hyacinth samples were compared using FTIR analysis, and the results showed that the pretreatment approaches exposed more cellulose to hydrolysis. Furthermore, the study investigated the impact of post-washing following acid pretreatment of water hyacinth and discovered that AC residues had no adverse effects, suggesting that the post-washing phase was unnecessary for ethanol production. These findings demonstrate that AC pretreatment can effectively enhance hydrolysis and biofuel production and that eliminating post-washing may reduce wastewater generated during the pretreatment process.","PeriodicalId":503211,"journal":{"name":"Applied Science and Engineering Progress","volume":"20 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139808931","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Pyrolysis of Polyethylene from Plastic Waste using Activated Ende Natural Zeolite as a Catalyst 以活性恩德天然沸石为催化剂热解塑料废料中的聚乙烯

Applied Science and Engineering Progress Pub Date : 2024-01-31 DOI: 10.14416/j.asep.2024.01.006

Gregorio Antonny Bani, Mario Donald Bani

{"title":"Pyrolysis of Polyethylene from Plastic Waste using Activated Ende Natural Zeolite as a Catalyst","authors":"Gregorio Antonny Bani, Mario Donald Bani","doi":"10.14416/j.asep.2024.01.006","DOIUrl":"https://doi.org/10.14416/j.asep.2024.01.006","url":null,"abstract":"Plastic waste has many complex chemical components. In developing countries, direct incineration is often used to reduce plastic waste, releasing pollutants into the atmosphere. A more environmentally sound alternative is pyrolysis. It can turn plastic waste into an alternative fuel. A catalyst, such as natural zeolite, can reduce the energy used in pyrolysis. However, mineral contaminants must be removed first to get optimum activity. This research was focused on using Ende natural zeolite as a catalyst, determining the properties of the mineral in its activated form. It also investigated the interaction between H-zeolite composition and the operating temperature towards pyrolysis oil yield. The experimental results showed that Ende natural zeolite contained a mixture of mordenite, clinoptilolite, and quartz. After activation and modification, there was an increase in the surface area from 53.17–104.67 m2/g. The average pore radius ranged from 19.96–34.21 Å. There was an increase in the pore volume from 22.01–72.34 cc/g. The total acidity changed from 1.456–5.342 NH3/g. The optimum catalyst concentration was 10% in the pyrolysis of 1000 grams of plastic waste catalyzed by 100 grams of H-zeolite. The oil yield decreased at 15% concentration. The 10% concentration worked best at 400 ℃.","PeriodicalId":503211,"journal":{"name":"Applied Science and Engineering Progress","volume":"196 20","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140475209","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of Enzyme Treatment and Carrier Agents on Chemical and Physical Properties of Almond Protein-Based Product 酶处理和载体剂对杏仁蛋白基产品的化学和物理特性的影响

Applied Science and Engineering Progress Pub Date : 2024-01-05 DOI: 10.14416/j.asep.2024.01.002

Tho Y. G. Nguyen, Ha V. H. Nguyen

{"title":"Effects of Enzyme Treatment and Carrier Agents on Chemical and Physical Properties of Almond Protein-Based Product","authors":"Tho Y. G. Nguyen, Ha V. H. Nguyen","doi":"10.14416/j.asep.2024.01.002","DOIUrl":"https://doi.org/10.14416/j.asep.2024.01.002","url":null,"abstract":"There has been an emerging trend towards the research of plant-based proteins over the past few years; however, there has been limited conductive observation of plant-based proteins from almond by-products, as well as the potential of using Flavourzyme and different carrier agents to obtain an instant protein-based powder. The purpose of this study was to investigate the effects of Flavourzyme at various concentrations (0, 0.5, 1, 1.5, 2, and 2.5%) and incubation times (30, 60, 90, 120, and 180 min), as well as carrier agents at different ratios with a 20% total concentration on the physicochemical properties of almond protein-based products using freeze-drying (FD). The results showed a higher protein content (p-value ≤ 0.05) using 1.5% Flavourzyme for 120 min compared to the other levels. There was no significant difference (p-value > 0.05) in the protein retention rate after freeze-drying of the samples. However, the addition of Maltodextrin (MA), Gum Arabic (GA), and Inulin (IN) encapsulants improved the physical and functional characteristics of freeze-dried almond protein-based powder (FDAP). However, the solubility of the powder is moderate. Water-holding-capacity (WHC) and Oil- Holding Capacity (OHC) are inversely proportional, where GA-coated powder is the most hydrophobic (17.72 ± 0.87 mL oil/g) and IN-encapsulated powder is the most hydrophilic (15.00 ± 0.87 mL water/g). In conclusion, IN could be a potential encapsulant for almond protein-based powder, because powder produced from IN or MA: IN is acceptable in terms of physical parameters, and IN can also enhance fiber content in the final product.","PeriodicalId":503211,"journal":{"name":"Applied Science and Engineering Progress","volume":"21 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139382986","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Review on Advance Catalyst for Biomass Gasification 生物质气化用先进催化剂综述

Applied Science and Engineering Progress Pub Date : 2024-01-04 DOI: 10.14416/j.asep.2024.01.001

Zahra Fona, I. Irvan, Rondang Tambun, Fatimah Fatimah, Adi Setiawan, Adriana Adriana

{"title":"Review on Advance Catalyst for Biomass Gasification","authors":"Zahra Fona, I. Irvan, Rondang Tambun, Fatimah Fatimah, Adi Setiawan, Adriana Adriana","doi":"10.14416/j.asep.2024.01.001","DOIUrl":"https://doi.org/10.14416/j.asep.2024.01.001","url":null,"abstract":"The production of renewable energy from biomass waste is a recent innovative approach attracting significant attention. In this field, gasification technology has become an important method, enabling the transformation of biomass into bio-syngas for wide applications, such as electrical power, transportation fuel, cooking fuel, and chemicals. Bio-syngas containing hydrogen, carbon monoxide, carbon dioxide, and methane, are considered a clean and nontoxic fuel. To achieve an effective and efficient gasification process, capable of producing a fuel grade syngas, the use of the catalyst has been reported as the most practical approach. Although this concept is currently in development, it has captured the interest of numerous investigations. The current challenge is the development of a catalyst that can reduce tar, enhance H2 yield at a relatively low temperature, capture CO2, and maintain an extended active lifespan. Therefore, this research aimed to review the novel catalysts discussed in the latest literatures with the ability to produce the highest hydrogen product by using an effective process. The catalysts included natural minerals containing alkali metals, metals, carbon, and composites. Additionally, here also suggested the potential materials should be explored more intensively for gasification catalysts. This review would help to promote and accelerate the research and application of biomass gasification using local existing feedstock. Since the future of energy depended on renewable sources, producing syngas became one of the best options to support energy demand using biomass waste in Indonesia.","PeriodicalId":503211,"journal":{"name":"Applied Science and Engineering Progress","volume":"52 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139385047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0