Bioresources最新文献_第10页

Cutinolytic esterases are induced by growth of the fungus Trichoderma harzianum on glyceryl monostearate in solid-state fermentation 哈兹木霉在单硬脂酸甘油酯固态发酵中生长，诱导其产生溶皮酯酶

4区农林科学

Bioresources Pub Date : 2023-10-27 DOI: 10.15376/biores.18.4.8515-8527

Victoria Conde-Ávila, Octavio Loera-Corral, Rubén Díaz, Carmen Sánchez

{"title":"Cutinolytic esterases are induced by growth of the fungus Trichoderma harzianum on glyceryl monostearate in solid-state fermentation","authors":"Victoria Conde-Ávila, Octavio Loera-Corral, Rubén Díaz, Carmen Sánchez","doi":"10.15376/biores.18.4.8515-8527","DOIUrl":"https://doi.org/10.15376/biores.18.4.8515-8527","url":null,"abstract":"Cutinolytic esterase are enzymes utilized in a wide variety of industrial applications, and they are capable of degrading emerging environmental pollutants. Due to the application and importance of these enzymes, it is crucial to develop an efficient method for cutinase production using a cost-effective inductor and an efficient microbial production system. In this work, the growth and cutinolytic esterase production of Trichoderma harzianum were evaluated in glucose-yeast extract media containing different glyceryl monostearate (GMS) concentrations (1, 3, and 5 g/L). It was used as inducer in solid-state fermentation. A medium lacking GMS was used as control. Biomass production and enzyme productivity were higher in inducer-added (1 g/L) medium than in the control medium. T. harzianum produced constitutive and inducible cutinolytic esterase, in which production was enhanced by GMS. In GMS-added cultures, two bands with cutinolytic esterase activity (60 and 150 kDa approximately) were observed by zymography, which were not observed in control culture. GMS represents a promising inducer for cutinolytic esterase production by fungi. This research represents the first approach for the study of cutinolytic esterase production using a synthetic molecule as an inducer.","PeriodicalId":9172,"journal":{"name":"Bioresources","volume":"50 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136312544","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Characterization of the properties of Buluh Madu (Gigantochloa albociliata) Buluh Madu (Gigantochloa albociliata)的特性研究

4区农林科学

Bioresources Pub Date : 2023-10-27 DOI: 10.15376/biores.18.4.8503-8514

Siti Asiyah Kasdi, Seng Hua Lee, Paridah Md. Tahir, Syeed Saifulazry Osman al-Edrus, Sabiha Salim, Muhammad Aizat Abd Ghani, Balkis Fatomer A. Bakar, Wei Chen Lum, Jun Zhang

{"title":"Characterization of the properties of Buluh Madu (Gigantochloa albociliata)","authors":"Siti Asiyah Kasdi, Seng Hua Lee, Paridah Md. Tahir, Syeed Saifulazry Osman al-Edrus, Sabiha Salim, Muhammad Aizat Abd Ghani, Balkis Fatomer A. Bakar, Wei Chen Lum, Jun Zhang","doi":"10.15376/biores.18.4.8503-8514","DOIUrl":"https://doi.org/10.15376/biores.18.4.8503-8514","url":null,"abstract":"Thirteen bamboo species are reported to be in commercial use in Malaysia. However, Buluh madu (Gigantochloa albociliata) did not make to the list. As a species, G. albociliata is cultivated for its delicious bamboo shoot and is demonstrated to possess great potential to produce commercialised products such as laminated bamboo panel. Unlike common bamboo, which has hollow cylindrical culms, G. albociliata has thick culms at the base, with smaller hollow cavities at the top portion. Therefore, it can be easily converted into high-thickness strips, thus improving the processing efficiency of laminated bamboo. To validate this theory, the anatomical, chemical, physical, and mechanical properties of G. albociliata were evaluated. The round bamboo and strips from the top and bottom sections of the bamboo stem were tested. It was found that G. albociliata has a vascular bundle type similar to that of the Gigantochloa genus bamboo. The fibre in G. albociliata is long and strong. The top section of bamboo has longer fibres, a higher density, and a higher specific gravity than the bottom section. As a result, bamboo from the top section has greater bending strength than bamboo from the bottom section. The G. albociliata species was discovered to have high mechanical strength, dimensional stability, and good wettability, making it an ideal material for laminated products.","PeriodicalId":9172,"journal":{"name":"Bioresources","volume":"10 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136312360","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Reducing particulates and gaseous emissions through fuel switching from coal to wood pellets at power plants in South Korea during 2005 to 2022 2005年至2022年期间，通过在韩国发电厂从煤炭转向木质颗粒燃料，减少颗粒物和气体排放

4区农林科学

Bioresources Pub Date : 2023-10-26 DOI: 10.15376/biores.18.4.8458-8472

Seung-Rok Lee, Sae Byul Kang, Gyu-Seong Han

{"title":"Reducing particulates and gaseous emissions through fuel switching from coal to wood pellets at power plants in South Korea during 2005 to 2022","authors":"Seung-Rok Lee, Sae Byul Kang, Gyu-Seong Han","doi":"10.15376/biores.18.4.8458-8472","DOIUrl":"https://doi.org/10.15376/biores.18.4.8458-8472","url":null,"abstract":"This study analyzed the particulates and gaseous emissions from 2005 to 2022 for power plants in South Korea (Utility scale: 125 MW (B-1) and 200 MW (B-2), respectively), which recently successfully converted from coal to wood pellets. The analysis showed that (1) NOx reduction was 78.9 to 90.0% (with outlet denitrification facility), (2) SOx reduction was 95.0 to 99.6% (without desulfurization facility condition), and (3) total suspended particles (TSP) reduction was 70.3 to 87.2% (with improved filtration and dust collection facility). This research confirmed the capabilities of wood pellets as a baseload power source and demonstrated their superior NOx reduction compared to coal. In the case of SOx, the desulfurization facility was discontinued at the stage of the fuel switch, so the value was affected by exogenous variable factors other than fuel. The TSP appears to be a combination of the ‘fine dust’ contained in the wood pellets and the performance of the filtration dust collector. The results suggest that fuel switching to wood pellets is a viable alternative to fossil fuels as an appropriate climate technology.","PeriodicalId":9172,"journal":{"name":"Bioresources","volume":"10 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134905945","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Carbon emissions trading potential of Turkiye's forest 土耳其森林的碳排放交易潜力

4区农林科学

Bioresources Pub Date : 2023-10-26 DOI: 10.15376/biores.18.4.8409-8431

Nilay Tulukcu Yıldızbaş, Hülya Kılıç Hernández, Hülya Yıldırım, Yusuf Güneş

{"title":"Carbon emissions trading potential of Turkiye's forest","authors":"Nilay Tulukcu Yıldızbaş, Hülya Kılıç Hernández, Hülya Yıldırım, Yusuf Güneş","doi":"10.15376/biores.18.4.8409-8431","DOIUrl":"https://doi.org/10.15376/biores.18.4.8409-8431","url":null,"abstract":"The current study emphasizes the inherent shortcomings of laws and policy approaches that are based on the premise that by increasing wood production, much more emission credits can be achieved by using wood in alternative uses. The article aims to exploit the financing of emission reductions, discuss how carbon sinks held in forest resources can be activated, traded, and financed, and explain how Turkiye’s forest carbon potential can be exploited. To make a comparative analysis of the situation of Turkiye at global level, Russian’s potential for carbon sequestration and its trade have been dealt with as a comparison by following quantitative research methodology. In this research, the calculation method has been used to determine the number of houses that are likely to be built in rural areas using wood materials, e.g., the construction of 100,000 houses with a construction area of 100 m2 per year. Consequently, the forest carbon generated by alternative scenarios contributes positively to the emission balance sheet, as well as climate change mitigation through carbon emission trade despite all legal and technical constraints. Although both countries have similar shortcomings of obtaining carbon credits and its trade, of course Russia has a promising situation in comparison with Turkiye with respect to the amount of carbon sequestered and the likelihood of its trade potential at global level.","PeriodicalId":9172,"journal":{"name":"Bioresources","volume":"31 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134905947","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

TSW-YOLO-v8n: Optimization of detection algorithms for surface defects on sawn timber TSW-YOLO-v8n:锯材表面缺陷检测算法优化

4区农林科学

Bioresources Pub Date : 2023-10-26 DOI: 10.15376/biores.18.4.8444-8457

Mingtao Wang, Mingxi Li, Wenyan Cui, Xiaoyang Xiang, Huaqiong Duo

{"title":"TSW-YOLO-v8n: Optimization of detection algorithms for surface defects on sawn timber","authors":"Mingtao Wang, Mingxi Li, Wenyan Cui, Xiaoyang Xiang, Huaqiong Duo","doi":"10.15376/biores.18.4.8444-8457","DOIUrl":"https://doi.org/10.15376/biores.18.4.8444-8457","url":null,"abstract":"The goal of this work was to better meet the demand for rapid detection of surface defects in sawn timber in forestry production. This paper introduces a two-way feature fusion network based on the YOLO-v8 algorithm and proposes a feature fusion network model that combines the attention mechanism and loss function optimization. In this way it increases the tiny target detection head in order to more effectively detect small defective targets in the wood, thus realizing the model’s high-efficiency and low-consumption functional design. The results show that the improved TSW-YOLO-v8n model realized the identification of eight kinds of defects in sawn timber with a high efficiency of 91.10% mAP50 and an average detection 6 ms, which is 5.1% higher than the original model’s mAP50 and 1 ms shorter than the original model’s average detection time. The comparison of the original model and its mainstream algorithms shows that the model of this paper had better performance and better detection capability. Thus, the improved model achieved better overall performance and stronger detection ability, which provides a new idea for the development of detection technology in the forestry industry.","PeriodicalId":9172,"journal":{"name":"Bioresources","volume":"146 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134905950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hydrophobic microcrystalline cellulose/polyethyleneimine composite aerogel for effective sound absorption 疏水微晶纤维素/聚乙烯亚胺复合气凝胶有效吸声

4区农林科学

Bioresources Pub Date : 2023-10-26 DOI: 10.15376/biores.18.4.8432-8443

Xin Jia, Guijiang Tang, Jinming Gao, Yangmiao Liao, Yu Zhang, Xueliang Jiang, Huan Yang, Dan Wu, Feng You, Peng Yu, Chu Yao

{"title":"Hydrophobic microcrystalline cellulose/polyethyleneimine composite aerogel for effective sound absorption","authors":"Xin Jia, Guijiang Tang, Jinming Gao, Yangmiao Liao, Yu Zhang, Xueliang Jiang, Huan Yang, Dan Wu, Feng You, Peng Yu, Chu Yao","doi":"10.15376/biores.18.4.8432-8443","DOIUrl":"https://doi.org/10.15376/biores.18.4.8432-8443","url":null,"abstract":"A hydrophobic and ultralight cellulose aerogel (CA) was reinforced by polyethyleneimine (PEI) and functionalized by methyltrimethoxysilane (MTMS). Adding PEI improved the mechanical strength and the elastic resilience of the resulting material due to the flexibility enhancement of the cellulose chains, which prevented the collapse of the pore structure and contributed to the uniform pore size distribution. The hydrophobic property of the aerogels with the functionalization of MTMS was improved, which can prevent the pore structure from collapsing due to the absorption of water. The maximum compression modulus of aerogel reached 1.1 MPa at the strain of 80%, and its hydrophobic water contact angle was up to 112°. The hydrophobic composite aerogels exhibited ultrahigh efficiency in sound absorption across a wide frequency range from 500 to 6300 Hz, and their average absorption coefficient was greater than 0.74. The light weight, high porosity, and environmentally friendly aerogels presented in this work are promising for efficient sound absorption. They have potential applications in noise pollution treatment.","PeriodicalId":9172,"journal":{"name":"Bioresources","volume":"37 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134906100","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Simulation and experimental analysis of Camellia oleifera fruit shedding based on finite element explicit dynamics 基于有限元显式动力学的油茶果实脱落模拟与实验分析

4区农林科学

Bioresources Pub Date : 2023-10-22 DOI: 10.15376/biores.18.4.8394-8408

Fanyu Wang, Jianbo Zhou, Zhengkun Miao, Yanhe Liu, Haiyun Feng, Yongjie Lei, Tianyu Wang, Chenkun Xiong

{"title":"Simulation and experimental analysis of Camellia oleifera fruit shedding based on finite element explicit dynamics","authors":"Fanyu Wang, Jianbo Zhou, Zhengkun Miao, Yanhe Liu, Haiyun Feng, Yongjie Lei, Tianyu Wang, Chenkun Xiong","doi":"10.15376/biores.18.4.8394-8408","DOIUrl":"https://doi.org/10.15376/biores.18.4.8394-8408","url":null,"abstract":"As an important oil crop in China and the world, the harvesting problem of Camellia oleifera has attracted much attention. Research is needed on mechanical characteristics of harvesting equipment. Explicit dynamics was used to establish a finite element model under a simulated load response to the branch-pedicel-fruit system of C. oleifera to predict the fracture process at the pedicel junction. The separation mechanism of C. oleifera fruit was determined by measuring the constitutive parameters of fruit branches and pedicels and conducting separation experiments and explicit dynamics simulations on different hanging fruits. The maximum stress at the fruit pedicel was 1.14 MPa, and the goodness of fit between the simulation and experiment was approximately 89.5%, indicating that the branch-pedicel-fruit finite element model could accurately reflect the fruit shedding process and that the pedicel diameter was correlated positively with the separation force. This study provides technical parameters for the optimized design of existing C. oleifera harvesting equipment.","PeriodicalId":9172,"journal":{"name":"Bioresources","volume":"3 1-2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135463184","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Improved method to determine standard values of mechanical properties of original bamboo 原竹力学性能标准值测定方法的改进

4区农林科学

Bioresources Pub Date : 2023-10-22 DOI: 10.15376/biores.18.4.8374-8393

Jianwei Li, Pengcheng Liu, Haodi Chen, Fangjie Cheng

引用次数: 0

Construction of cement composite using walnut shell reinforced with bacterial nanocellulose gel 细菌纳米纤维素凝胶增强核桃壳水泥复合材料的构建

4区农林科学

Bioresources Pub Date : 2023-10-22 DOI: 10.15376/biores.18.4.8362-8373

Ali Hassanpoor Tichi, Meysam Razavi

{"title":"Construction of cement composite using walnut shell reinforced with bacterial nanocellulose gel","authors":"Ali Hassanpoor Tichi, Meysam Razavi","doi":"10.15376/biores.18.4.8362-8373","DOIUrl":"https://doi.org/10.15376/biores.18.4.8362-8373","url":null,"abstract":"The effect of nanocellulose on mechanical, physical, and morphological properties of composites made of walnut shell and cement was investigated. The mixing ratio of walnut shell as a lignocellulosic material with cement at three levels (10:90, 20:80, and 30:70) and nanocellulose at three levels (0%, 1%, and 3%, based on dry weight of cement) were considered as the variables. Boards were prepared according to the ISO 11925-2 (2020) specifications for the fire resistance properties and according to the DIN EN 634-1 (1995) specifications for the mechanical and physical properties. Morphological properties of composites and nano distribute were evaluated by scanning electron microscopic (SEM) imaging. The results showed that boards containing nanocellulose increased the mechanical properties compared with cement board without nanoreinforcement. The modulus of rupture, modulus of elasticity, and internal bonding of the boards decreased with increased walnut shell amount, and its maximum value was obtained when using 10% walnut shell. Nanocellulose remarkably reduced the fire resistance of the boards. The results from SEM showed that nanocellulose can fill the pores of the composite and create a uniform structure, and thus improved the strength of the boards.","PeriodicalId":9172,"journal":{"name":"Bioresources","volume":"55 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135462161","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Rice bran stabilization using autoclave and optimization of crude rice bran oil recovery using ultrasound-assisted extraction 蒸压釜稳定米糠及超声辅助提取粗米糠油的优化

4区农林科学

Bioresources Pub Date : 2023-10-22 DOI: 10.15376/biores.18.4.8341-8361

Dodyk Pranowo, Tsamara Dhany Savira, None Sukardi

{"title":"Rice bran stabilization using autoclave and optimization of crude rice bran oil recovery using ultrasound-assisted extraction","authors":"Dodyk Pranowo, Tsamara Dhany Savira, None Sukardi","doi":"10.15376/biores.18.4.8341-8361","DOIUrl":"https://doi.org/10.15376/biores.18.4.8341-8361","url":null,"abstract":"This research aimed to stabilize rice bran to reduce enzymatic reactions and optimize rice bran oil extraction using ultrasound-assisted extraction (UAE). The optimization was performed using response surface methodology (RSM). The results showed that rice bran oil has three primary fatty acids (oleic, linoleic, palmitic). Stabilization of rice bran using an autoclave (121 °C) for 10 min was recommended, with oil yield (14.2%), free fatty acid/FFA (0.41%), and gamma oryzanol (16.1 ppm). The storage significantly affected oil yield and gamma oryzanol but not FFA (p>0.05). The untreated and stabilized rice bran FFA during 18-day storage ranged from 1.33 to 5.73% and 0.41 to 1.12%. This confirmed that stabilization could inactivate lipase enzymes by reducing FFA. The optimization showed that the linear model best explained oil yield, total phenol content (TPC), and antioxidant activity (IC50), while the 2FI model was best fitted for gamma oryzanol. The optimal condition was found for UAE extraction at an amplitude of 90% and a time of 30 min. Verifying optimal conditions resulted in oil yield (13.6%), TPC (44.8 mg GAE/g), IC50 (207.2 ppm), and gamma oryzanol (15.8 ppm). Further in-depth studies are required to investigate using green solvents in the UAE and gamma oryzanol purification.","PeriodicalId":9172,"journal":{"name":"Bioresources","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135463183","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0