Pub Date : 2024-03-13DOI: 10.15376/biores.19.2.2724-2735
Melike Cebi Kilicoglu
The effects of heavy metal pollution have become a significant global issue in recent years. The primary objective of the present study was to compare the heavy metal concentrations in Pinus brutia shoots grown in an organized industrial zone (OIZ) and a forested area (Adalar) and to examine how these heavy metals affect fungal microbiota. The results achieved here showed that Ni and V concentrations were lower than the detectable limits in both the Adalar and the OIZ region, whereas Se and Cu concentrations were lower than the detectable limits in the shoots collected from the Adalar. Concentrations determined in samples collected from the OIZ were approximately 6 times higher for Cr and 16 times higher for Zn in comparison to the samples collected from the Adalar. Metagenomic analysis revealed that the most common fungal genera were Aureobasidium, Gibberella, Hazslinszkyomyces, Alternaria, Cladosporium, Buckleyzyma, Lasiodiplodia, and Hormonema for the OIZ area and Hormonema, Aureobasidium, Alternaria, Cladosporium, Arthrinium, Fonsecazyma, and Truncatella for the Adalar region. In the future, this study may serve as a reference for the development of innovative strategies for the remediation of heavy metal pollution for a sustainable and clean environment using biological sources.
{"title":"Effects of heavy metal contamination on fungal diversity in Pinus brutia shoots","authors":"Melike Cebi Kilicoglu","doi":"10.15376/biores.19.2.2724-2735","DOIUrl":"https://doi.org/10.15376/biores.19.2.2724-2735","url":null,"abstract":"The effects of heavy metal pollution have become a significant global issue in recent years. The primary objective of the present study was to compare the heavy metal concentrations in Pinus brutia shoots grown in an organized industrial zone (OIZ) and a forested area (Adalar) and to examine how these heavy metals affect fungal microbiota. The results achieved here showed that Ni and V concentrations were lower than the detectable limits in both the Adalar and the OIZ region, whereas Se and Cu concentrations were lower than the detectable limits in the shoots collected from the Adalar. Concentrations determined in samples collected from the OIZ were approximately 6 times higher for Cr and 16 times higher for Zn in comparison to the samples collected from the Adalar. Metagenomic analysis revealed that the most common fungal genera were Aureobasidium, Gibberella, Hazslinszkyomyces, Alternaria, Cladosporium, Buckleyzyma, Lasiodiplodia, and Hormonema for the OIZ area and Hormonema, Aureobasidium, Alternaria, Cladosporium, Arthrinium, Fonsecazyma, and Truncatella for the Adalar region. In the future, this study may serve as a reference for the development of innovative strategies for the remediation of heavy metal pollution for a sustainable and clean environment using biological sources.","PeriodicalId":503414,"journal":{"name":"BioResources","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140245551","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}
Pub Date : 2024-03-13DOI: 10.15376/biores.19.2.2701-2713
A. M. Al-Rajhi, M. Ganash, Amal Naif Alshammari, Sulaiman A. Alsalamah, Tarek M. Abdelghany
The consumption of food contaminated with aflatoxins causes severe harmful health effects, which can lead to death, in both humans and livestock. Therefore, the degradation of aflatoxins, particularly by biological methods, is considered a feasible technology for remediation of aflatoxin-contaminated products. In vitro, aflatoxin B1, B2, G1, and G2 were degraded by 25 U/mL of lipase with reduction percentages of 57.5, 71.7, 80.1, and 83.8%. This reduction increased to 81.3, 82.8, 86.9, and 90.7% via 200 U/mL of lipase, respectively. Protease was less effective than lipase in the degradation of aflatoxin B1, B2, G1, and G2 with reduction levels of 35.8, 54.9, 66.5, and 70.2%, respectively, at 25 U/mL of protease. This investigation offers new concepts for the quick screening of aflatoxin-degrading enzymes and offers a theoretical basis for the degradation of aflatoxins. Interactions between aflatoxin B1 (considered as a ligand) and proteins that were taken as receptors (Structure of Lipase PDB ID: 1DT3 and Protease PDB ID: 2PRO) were elucidated. The molecular modeling results of utilized compound showed a notable binding score and best Root Mean Square (RMS) define value, indicating efficient binding mode and appropriate interactions with amino acids of selected proteins.
{"title":"In vitro and molecular docking evaluation of target proteins of lipase and protease for the degradation of aflatoxins","authors":"A. M. Al-Rajhi, M. Ganash, Amal Naif Alshammari, Sulaiman A. Alsalamah, Tarek M. Abdelghany","doi":"10.15376/biores.19.2.2701-2713","DOIUrl":"https://doi.org/10.15376/biores.19.2.2701-2713","url":null,"abstract":"The consumption of food contaminated with aflatoxins causes severe harmful health effects, which can lead to death, in both humans and livestock. Therefore, the degradation of aflatoxins, particularly by biological methods, is considered a feasible technology for remediation of aflatoxin-contaminated products. In vitro, aflatoxin B1, B2, G1, and G2 were degraded by 25 U/mL of lipase with reduction percentages of 57.5, 71.7, 80.1, and 83.8%. This reduction increased to 81.3, 82.8, 86.9, and 90.7% via 200 U/mL of lipase, respectively. Protease was less effective than lipase in the degradation of aflatoxin B1, B2, G1, and G2 with reduction levels of 35.8, 54.9, 66.5, and 70.2%, respectively, at 25 U/mL of protease. This investigation offers new concepts for the quick screening of aflatoxin-degrading enzymes and offers a theoretical basis for the degradation of aflatoxins. Interactions between aflatoxin B1 (considered as a ligand) and proteins that were taken as receptors (Structure of Lipase PDB ID: 1DT3 and Protease PDB ID: 2PRO) were elucidated. The molecular modeling results of utilized compound showed a notable binding score and best Root Mean Square (RMS) define value, indicating efficient binding mode and appropriate interactions with amino acids of selected proteins.","PeriodicalId":503414,"journal":{"name":"BioResources","volume":"684 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140246701","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}
In this study, a nonionic surfactant (JFC-M) was used as an additive for hydrothermal pretreatment of crushed poplar wood. The pseudo-lignin extracted from holocellulose after hydrothermal pretreatment was characterized, and the composition of liquid and solid fractions obtained after pretreatment at different experimental conditions was analyzed. The results showed that the addition of JFC-M surfactant accelerated the dissolution of biomass cellulose and effectively inhibited the production of pseudo-lignin in hydrothermal processes, under the same hydrothermal pretreatment conditions. The pseudo-lignin yield for the control group was 14.2% (no JFC surfactant added), whereas when the JFC-M concentration was 2%, the pseudo-lignin yield was 9.8%.
{"title":"Effect of surfactant on pseudo-lignin formation","authors":"Zhoubo Yao, Yayu Liang, Peng Zhan, Lishu Shao, Zhiping Wu","doi":"10.15376/biores.19.2.2714-2723","DOIUrl":"https://doi.org/10.15376/biores.19.2.2714-2723","url":null,"abstract":"In this study, a nonionic surfactant (JFC-M) was used as an additive for hydrothermal pretreatment of crushed poplar wood. The pseudo-lignin extracted from holocellulose after hydrothermal pretreatment was characterized, and the composition of liquid and solid fractions obtained after pretreatment at different experimental conditions was analyzed. The results showed that the addition of JFC-M surfactant accelerated the dissolution of biomass cellulose and effectively inhibited the production of pseudo-lignin in hydrothermal processes, under the same hydrothermal pretreatment conditions. The pseudo-lignin yield for the control group was 14.2% (no JFC surfactant added), whereas when the JFC-M concentration was 2%, the pseudo-lignin yield was 9.8%.","PeriodicalId":503414,"journal":{"name":"BioResources","volume":"1 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140245339","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}
Pub Date : 2024-03-11DOI: 10.15376/biores.19.2.2685-2700
Wendy Alwala, Antonia Perju, M. Schwarz, Jean Bonhotal, Steven Pires, Mary A. Ankeny, Jesse Daystar, Margaret Frey
Denim fabric samples representing current indigo dye sources and fabric structures were biodegraded in feedstock including food waste, manure, and animal bedding, which are typically composted at the Cornell Farm Services Composting Facility and processed under laboratory conditions for 77 days. Indigo types including dry denim, pre-reduced, and natural did not inhibit degradation as compared to undyed 100% cotton fabric. Additionally, fabrics tested as received from the mill and those tested post scouring degraded effectively. As expected, denim containing 24% polyester and 2% spandex retained overall fabric structure despite degradation of the cotton portion of the yarns.
{"title":"The compostability of denim fabrics dyed with various indigos","authors":"Wendy Alwala, Antonia Perju, M. Schwarz, Jean Bonhotal, Steven Pires, Mary A. Ankeny, Jesse Daystar, Margaret Frey","doi":"10.15376/biores.19.2.2685-2700","DOIUrl":"https://doi.org/10.15376/biores.19.2.2685-2700","url":null,"abstract":"Denim fabric samples representing current indigo dye sources and fabric structures were biodegraded in feedstock including food waste, manure, and animal bedding, which are typically composted at the Cornell Farm Services Composting Facility and processed under laboratory conditions for 77 days. Indigo types including dry denim, pre-reduced, and natural did not inhibit degradation as compared to undyed 100% cotton fabric. Additionally, fabrics tested as received from the mill and those tested post scouring degraded effectively. As expected, denim containing 24% polyester and 2% spandex retained overall fabric structure despite degradation of the cotton portion of the yarns.","PeriodicalId":503414,"journal":{"name":"BioResources","volume":"27 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140254224","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}
Pub Date : 2024-03-08DOI: 10.15376/biores.19.2.2670-2684
Engin Kocatürk, Ferhat Şen, Mustafa Zor, Zeki Candan
Recycling is one of the most popular research topics today. In this study, in addition to the evaluation of waste tires, which are frequently encountered in the industry and difficult to dispose of, a green biomaterial, nanocellulose-based new generation nanocomposite was produced and characterized for the first time. Carbonized waste rubber, obtained by pyrolysis of tire wastes, was reinforced with nanocellulose at levels of 0.10%, 0.25%, 0.5%, and 1% by weight. The prepared nanocellulose-based nanocomposites were investigated by X-ray diffraction (XRD), morphological properties by scanning electron microscopy (SEM), thermal properties by thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), and dynamic mechanical thermal (DMTA). In addition, the percentage of gel contents of the produced nanocomposites were determined. Thermal analyses revealed that the sample containing 1% carbonized waste rubber showed the highest thermal stability and at 750 °C the ash yield increased up to 25% compared to nanocellulose. The fabricated nanocomposites had about 10 times higher storage modulus compared to pure NC. All results show that the green nanocellulose-based nanocomposites can be used for future applications in industry.
回收利用是当今最热门的研究课题之一。在本研究中，除了对工业中经常遇到且难以处理的废轮胎进行评估外，还首次生产了一种绿色生物材料，即基于纳米纤维素的新一代纳米复合材料，并对其进行了表征。通过热解轮胎废料得到的碳化废橡胶中添加了纳米纤维素，添加量分别为 0.10%、0.25%、0.5% 和 1%。通过 X 射线衍射（XRD）、扫描电子显微镜（SEM）、热重分析（TGA）、差示扫描量热仪（DSC）和动态机械热（DMTA）研究了所制备的纳米纤维素基纳米复合材料的形态特性。此外，还测定了所制纳米复合材料的凝胶含量百分比。热分析表明，含 1%碳化废橡胶的样品显示出最高的热稳定性，与纳米纤维素相比，在 750 °C 时，灰分产量增加了 25%。与纯 NC 相比，制备的纳米复合材料的存储模量高出约 10 倍。所有结果表明，基于纳米纤维素的绿色纳米复合材料可用于未来的工业应用。
{"title":"Development and characterization of nanocellulose/ carbonized waste rubber nanocomposites","authors":"Engin Kocatürk, Ferhat Şen, Mustafa Zor, Zeki Candan","doi":"10.15376/biores.19.2.2670-2684","DOIUrl":"https://doi.org/10.15376/biores.19.2.2670-2684","url":null,"abstract":"Recycling is one of the most popular research topics today. In this study, in addition to the evaluation of waste tires, which are frequently encountered in the industry and difficult to dispose of, a green biomaterial, nanocellulose-based new generation nanocomposite was produced and characterized for the first time. Carbonized waste rubber, obtained by pyrolysis of tire wastes, was reinforced with nanocellulose at levels of 0.10%, 0.25%, 0.5%, and 1% by weight. The prepared nanocellulose-based nanocomposites were investigated by X-ray diffraction (XRD), morphological properties by scanning electron microscopy (SEM), thermal properties by thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), and dynamic mechanical thermal (DMTA). In addition, the percentage of gel contents of the produced nanocomposites were determined. Thermal analyses revealed that the sample containing 1% carbonized waste rubber showed the highest thermal stability and at 750 °C the ash yield increased up to 25% compared to nanocellulose. The fabricated nanocomposites had about 10 times higher storage modulus compared to pure NC. All results show that the green nanocellulose-based nanocomposites can be used for future applications in industry.","PeriodicalId":503414,"journal":{"name":"BioResources","volume":"32 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140257759","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}
Pub Date : 2024-03-07DOI: 10.15376/biores.19.2.2660-2669
Chen Wang, Jiahao Yu, Minhan Jiang, Jingyao Li
The top and bottom shells of fused deposition 3D-printed PLA models are exposed to the highest stresses. To improve the bending performance of PLA models under three-point bending conditions, the models were strengthened by a selective enhancement method. Several sets of PLA models were fabricated using FDM technology, and three-point bending experiments were conducted to compare the bending strength of PLA models when the layer height, top/bottom shell thickness, and extrusion rate were varied. The bending strength of the PLA models increased as the layer height of the top/bottom shell decreased, the thickness increased, and the extrusion rate increased. The average bending strength of the PLA models after selective enhancement was 84.4 MPa, and the average bending modulus of elasticity was 0.816 GPa, which were higher than the average bending strength of 68.6 MPa and the average bending modulus of elasticity of 0.736 GPa of the conventional groups. These results indicated that the selective enhancement method improved the bending performance of 3D-printed PLA models, and it also provided a reference for the improvement of the mechanical properties of the 3D-printed models with cellulose composite reinforced materials.
{"title":"Effect of selective enhancement on the bending performance of fused deposition methods 3D-printed PLA models","authors":"Chen Wang, Jiahao Yu, Minhan Jiang, Jingyao Li","doi":"10.15376/biores.19.2.2660-2669","DOIUrl":"https://doi.org/10.15376/biores.19.2.2660-2669","url":null,"abstract":"The top and bottom shells of fused deposition 3D-printed PLA models are exposed to the highest stresses. To improve the bending performance of PLA models under three-point bending conditions, the models were strengthened by a selective enhancement method. Several sets of PLA models were fabricated using FDM technology, and three-point bending experiments were conducted to compare the bending strength of PLA models when the layer height, top/bottom shell thickness, and extrusion rate were varied. The bending strength of the PLA models increased as the layer height of the top/bottom shell decreased, the thickness increased, and the extrusion rate increased. The average bending strength of the PLA models after selective enhancement was 84.4 MPa, and the average bending modulus of elasticity was 0.816 GPa, which were higher than the average bending strength of 68.6 MPa and the average bending modulus of elasticity of 0.736 GPa of the conventional groups. These results indicated that the selective enhancement method improved the bending performance of 3D-printed PLA models, and it also provided a reference for the improvement of the mechanical properties of the 3D-printed models with cellulose composite reinforced materials.","PeriodicalId":503414,"journal":{"name":"BioResources","volume":"13 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140258263","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}
Pub Date : 2024-03-06DOI: 10.15376/biores.19.2.2609-2625
Murugesan Palaniappan, Sivasubramanian Palanisamy, Thulasi Mani Murugesan, Srinivas Tadepalli, Rashid Khan, Sabbah Ataya, Carlo Santulli
Green composite materials are a means of reducing reliance on synthetic and especially single-use plastics (SUP) and raising public awareness of the need for urgent action to protect the planet. Natural (lignocellulosic) fibres are increasingly utilized as the reinforcement in polymer matrix composites, in search for increased renewability and sustainability. This work concerns the effect of washing ramie (Boehmeria nivea) fibres using sodium lauryl sulphate (SLS) surfactant. The SLS-treated ramie fibres were examined for their morphological, physical, thermal, structural, and mechanical properties by powder X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, thermogravimetric analysis (TGA), scanning electron microscopy (SEM), and tensile testing. SLS treated ramie fibres density and crystallinity index values were 1.23 g/cc and 84.5%, respectively, with a very high cellulose content of 81.3%, because hemicellulose and loose particles were dissolved. SEM images depicted the relevant changes, with no significant damage on treated fibre surfaces. With some assistance from the treatment, fibres initiated their degradation only above 250 °C, culminating at 327 °C, which appears suitable for the manufacturing of composites with the most common matrices.
{"title":"Influence of washing with sodium lauryl sulphate (SLS) surfactant on different properties of ramie fibres","authors":"Murugesan Palaniappan, Sivasubramanian Palanisamy, Thulasi Mani Murugesan, Srinivas Tadepalli, Rashid Khan, Sabbah Ataya, Carlo Santulli","doi":"10.15376/biores.19.2.2609-2625","DOIUrl":"https://doi.org/10.15376/biores.19.2.2609-2625","url":null,"abstract":"Green composite materials are a means of reducing reliance on synthetic and especially single-use plastics (SUP) and raising public awareness of the need for urgent action to protect the planet. Natural (lignocellulosic) fibres are increasingly utilized as the reinforcement in polymer matrix composites, in search for increased renewability and sustainability. This work concerns the effect of washing ramie (Boehmeria nivea) fibres using sodium lauryl sulphate (SLS) surfactant. The SLS-treated ramie fibres were examined for their morphological, physical, thermal, structural, and mechanical properties by powder X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, thermogravimetric analysis (TGA), scanning electron microscopy (SEM), and tensile testing. SLS treated ramie fibres density and crystallinity index values were 1.23 g/cc and 84.5%, respectively, with a very high cellulose content of 81.3%, because hemicellulose and loose particles were dissolved. SEM images depicted the relevant changes, with no significant damage on treated fibre surfaces. With some assistance from the treatment, fibres initiated their degradation only above 250 °C, culminating at 327 °C, which appears suitable for the manufacturing of composites with the most common matrices.","PeriodicalId":503414,"journal":{"name":"BioResources","volume":"40 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140262624","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}
Pub Date : 2024-03-06DOI: 10.15376/biores.19.2.2626-2638
Shuo Wang, Panpan Ma, Jingkang Lin, Tongyu Hou, Fei-bin Wang, Z. Que, Meng Gong
Self-tapping screws (STS) are an effective fastener to enhance wooden moment-resisting joints. However, the effects of the arrangement and insertion angle of STS on the mechanical properties of wooden joints are less studied. Therefore, this study investigated the influence of these two factors on the mechanical properties of wooden joints by conducting cyclic loading tests using glulam moment-resisting joints reinforced by STS with different arrangements (round and square) and insertion angles (45° and 90°). The failure modes, bearing performances, and energy dissipation capacities were considered. The results showed that the insertion angle affected the bearing and energy dissipation capacity of the joints significantly, while the effect of arrangement was slight. The anti-rotation bending moments of the joints reinforced by inclined STS were higher by 31.7% and 13.5% when the arrangement of STS was circular and rectangular respectively compared with the joints reinforced by vertical STS under compression state, and were lower by 17.5 % and 22.9 % under tensile state. The restoring force characteristics of the joints were similar when the insertion angle of STS was the same. Furthermore, the joints had optimal ductility and stiffness when the arrangement was rectangular, and the insertion angle was 45°.
{"title":"Mechanical properties of glulam moment-resisting joints reinforced by inclined self-tapping screws","authors":"Shuo Wang, Panpan Ma, Jingkang Lin, Tongyu Hou, Fei-bin Wang, Z. Que, Meng Gong","doi":"10.15376/biores.19.2.2626-2638","DOIUrl":"https://doi.org/10.15376/biores.19.2.2626-2638","url":null,"abstract":"Self-tapping screws (STS) are an effective fastener to enhance wooden moment-resisting joints. However, the effects of the arrangement and insertion angle of STS on the mechanical properties of wooden joints are less studied. Therefore, this study investigated the influence of these two factors on the mechanical properties of wooden joints by conducting cyclic loading tests using glulam moment-resisting joints reinforced by STS with different arrangements (round and square) and insertion angles (45° and 90°). The failure modes, bearing performances, and energy dissipation capacities were considered. The results showed that the insertion angle affected the bearing and energy dissipation capacity of the joints significantly, while the effect of arrangement was slight. The anti-rotation bending moments of the joints reinforced by inclined STS were higher by 31.7% and 13.5% when the arrangement of STS was circular and rectangular respectively compared with the joints reinforced by vertical STS under compression state, and were lower by 17.5 % and 22.9 % under tensile state. The restoring force characteristics of the joints were similar when the insertion angle of STS was the same. Furthermore, the joints had optimal ductility and stiffness when the arrangement was rectangular, and the insertion angle was 45°.","PeriodicalId":503414,"journal":{"name":"BioResources","volume":"31 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140261713","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}
Short video advertisements are a novel and influential medium for promoting furniture products, but their effects on consumers’ purchase intentions remain underexplored. This study applies the extended stimulus-organism-response (SOR) framework, a psychological theory that elucidates how stimuli (short video ads), organisms (consumers), and responses (purchase intentions) are interrelated. This study quantitatively examines these relationships using structural equation modeling (SEM). The results reveal that the Flow experience and Telepresence experience significantly affect purchase intentions, indicating that consumers who experience high levels of engagement and immersion while viewing short furniture-related video ads are more likely to exhibit buying behavior. This study also identifies three critical antecedents of the Telepresence experience: social influence, perceived entertainment value, and perceived interactivity. These factors may enhance the effectiveness of short-form video advertising by increasing consumer interaction and engagement. Moreover, convenience conditions, perceived entertainment value, and media richness significantly influence consumers’ flow experience. This suggests that these factors should be considered when designing short video advertisements to optimize consumers’ flow experience and thus increase purchase intentions. This study provides empirical evidence for the SOR framework, investigates the impact of short video advertisements on furniture consumers’ purchase intention, and offers practical implications and recommendations for marketing practitioners.
短视频广告是推广家具产品的一种新颖而有影响力的媒介，但其对消费者购买意向的影响仍未得到充分探讨。本研究采用了扩展的刺激-有机体-反应（SOR）框架，这一心理学理论阐明了刺激（短视频广告）、有机体（消费者）和反应（购买意向）之间的相互关系。本研究采用结构方程模型（SEM）对这些关系进行了定量研究。研究结果表明，"流动体验 "和 "网真体验 "对购买意向有显著影响，表明在观看与家具相关的短视频广告时体验到高度参与和沉浸感的消费者更有可能表现出购买行为。本研究还确定了网真体验的三个关键前因：社会影响力、感知娱乐价值和感知互动性。这些因素可以通过增加消费者的互动和参与来提高短视频广告的效果。此外，便利条件、感知娱乐价值和媒体丰富性也会显著影响消费者的流动体验。这表明，在设计短视频广告时应考虑这些因素，以优化消费者的流动体验，从而提高购买意向。本研究为 SOR 框架提供了实证证据，探讨了短视频广告对家具消费者购买意向的影响，并为营销从业者提供了实践意义和建议。
{"title":"Consumer behavior based on the SOR model: How do short video advertisements affect furniture consumers’ purchase intentions?","authors":"Shulan Yu, Hongli Zhang, Qun Zheng, Dongdong Chu, Tianyue Chen, Xinran Chen","doi":"10.15376/biores.19.2.2639-2659","DOIUrl":"https://doi.org/10.15376/biores.19.2.2639-2659","url":null,"abstract":"Short video advertisements are a novel and influential medium for promoting furniture products, but their effects on consumers’ purchase intentions remain underexplored. This study applies the extended stimulus-organism-response (SOR) framework, a psychological theory that elucidates how stimuli (short video ads), organisms (consumers), and responses (purchase intentions) are interrelated. This study quantitatively examines these relationships using structural equation modeling (SEM). The results reveal that the Flow experience and Telepresence experience significantly affect purchase intentions, indicating that consumers who experience high levels of engagement and immersion while viewing short furniture-related video ads are more likely to exhibit buying behavior. This study also identifies three critical antecedents of the Telepresence experience: social influence, perceived entertainment value, and perceived interactivity. These factors may enhance the effectiveness of short-form video advertising by increasing consumer interaction and engagement. Moreover, convenience conditions, perceived entertainment value, and media richness significantly influence consumers’ flow experience. This suggests that these factors should be considered when designing short video advertisements to optimize consumers’ flow experience and thus increase purchase intentions. This study provides empirical evidence for the SOR framework, investigates the impact of short video advertisements on furniture consumers’ purchase intention, and offers practical implications and recommendations for marketing practitioners.","PeriodicalId":503414,"journal":{"name":"BioResources","volume":"103 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140260976","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}
Pub Date : 2024-03-04DOI: 10.15376/biores.19.2.2562-2574
Redzuan Mohammad Suffian James, P. Tahir, Norwahyuni Mohd Yusof, Syeed Saifulazry Osman Al-Edrus, Zurina Zainal Abidin, Ismawati Palle, M. K. A. Uyup, Seng Hua Lee
Malaysian bamboo residues were subjected to a liquefaction process. Bleaching of the liquefied product was carried out to reduce its coloration. Polyurethane (PU) films were then manufactured as a coating material by reacting the -OH groups in the bamboo material with isocyanate (-NCO). The study’s objective was to investigate the effects of bleaching on the properties of resulting polyurethane films and to elucidate its behavior as affected by the NCO/OH ratios. Bamboo residues, in powder form, were liquefied with polyethylene glycol (PEG 400) and glycerol (Gly) as reactive co-solvent, and sulphuric acid as catalyst. The obtained liquefied bamboo was then bleached with hydrogen peroxide. Bleached and unbleached liquefied bamboo were used to produce PU film by reacting isocyanate at NCO/OH ratios of 1.6, 1.8, 2.0, and 2.2. The results revealed that the NCO/OH ratios improved the mechanical performance of the PU films. Bleaching treatment slightly reduced the thermal stability and mechanical strength of the PU films. However, bleached PU films displayed lower water absorption and lower biodegradation than unbleached PU films. Nevertheless, the performance of the bleached PU films was still acceptable, indicating that the bleaching treatment using hydrogen peroxide is feasible to obtain semi-transparent film.
{"title":"Effects of bleaching treatment on the properties of bio-polyurethane films from liquefied bamboo","authors":"Redzuan Mohammad Suffian James, P. Tahir, Norwahyuni Mohd Yusof, Syeed Saifulazry Osman Al-Edrus, Zurina Zainal Abidin, Ismawati Palle, M. K. A. Uyup, Seng Hua Lee","doi":"10.15376/biores.19.2.2562-2574","DOIUrl":"https://doi.org/10.15376/biores.19.2.2562-2574","url":null,"abstract":"Malaysian bamboo residues were subjected to a liquefaction process. Bleaching of the liquefied product was carried out to reduce its coloration. Polyurethane (PU) films were then manufactured as a coating material by reacting the -OH groups in the bamboo material with isocyanate (-NCO). The study’s objective was to investigate the effects of bleaching on the properties of resulting polyurethane films and to elucidate its behavior as affected by the NCO/OH ratios. Bamboo residues, in powder form, were liquefied with polyethylene glycol (PEG 400) and glycerol (Gly) as reactive co-solvent, and sulphuric acid as catalyst. The obtained liquefied bamboo was then bleached with hydrogen peroxide. Bleached and unbleached liquefied bamboo were used to produce PU film by reacting isocyanate at NCO/OH ratios of 1.6, 1.8, 2.0, and 2.2. The results revealed that the NCO/OH ratios improved the mechanical performance of the PU films. Bleaching treatment slightly reduced the thermal stability and mechanical strength of the PU films. However, bleached PU films displayed lower water absorption and lower biodegradation than unbleached PU films. Nevertheless, the performance of the bleached PU films was still acceptable, indicating that the bleaching treatment using hydrogen peroxide is feasible to obtain semi-transparent film.","PeriodicalId":503414,"journal":{"name":"BioResources","volume":"31 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140080657","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}
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