Bioresources最新文献_第4页

Reduction of fines in recycled paper white water via cellulase enzymes 通过纤维素酶减少再生纸白水中的细小颗粒

IF 1.5 4区农林科学

Bioresources Pub Date : 2023-12-01 DOI: 10.15376/biores.19.1.635-655

Đorđe Jevtović, Predrag Živković, Ana Milivojević, Dejan I. Bezbradica, Luc Van Der Auwera

{"title":"Reduction of fines in recycled paper white water via cellulase enzymes","authors":"Đorđe Jevtović, Predrag Živković, Ana Milivojević, Dejan I. Bezbradica, Luc Van Der Auwera","doi":"10.15376/biores.19.1.635-655","DOIUrl":"https://doi.org/10.15376/biores.19.1.635-655","url":null,"abstract":"Due to the high wastepaper recyclability and water-loop system closure, packaging paper mills struggle with increased fines, causing runnability issues. Cellulase enzymes are a preferred treatment choice for the improvement of the pulp refining in stock preparation area but are not widely used or easy to introduce in the production process. Different cellulase enzymes were tested, and those with the highest activity were introduced to the white-water (WW) samples with the aim to reduce fines content as potentially new enzyme applications on the paper machine. The first portion of the study involved the development of an experiment model to find and confirm the optimal enzyme process parameters (40 °C, pH 5.7, reaction time 3 h, and 0.18% v/v enzyme addition) for laboratory made white-water. The second portion of the study included turbidity, colloidal charge, flow cytometry (FCM), and chemical oxygen demand (COD) analysis on industrial and laboratory made white-water samples at optimized process parameters. Obtained results corresponded to reduced fines content in white-water samples, which justified commercial usage of cellulase enzymes on recycled paper machine short loop and potentially increased machine runnability without negative influence on wastewater treatment plant.","PeriodicalId":9172,"journal":{"name":"Bioresources","volume":" 9","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138614413","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

The impact of drying conditions on the surface color changes of pine wood 干燥条件对松木表面颜色变化的影响

IF 1.5 4区农林科学

Bioresources Pub Date : 2023-12-01 DOI: 10.15376/biores.19.1.656-669

A. Suchta, J. Barański, Tatiana Vilkovská, I. Klement, Peter Vilkovský

{"title":"The impact of drying conditions on the surface color changes of pine wood","authors":"A. Suchta, J. Barański, Tatiana Vilkovská, I. Klement, Peter Vilkovský","doi":"10.15376/biores.19.1.656-669","DOIUrl":"https://doi.org/10.15376/biores.19.1.656-669","url":null,"abstract":"The article presents the impact of drying process and selected parameters on the color changes on the surface of pine wood (Pinus sylvestris L.). Three predetermined process conditions (modes), mild, normal, and intensive, were investigated. The experiments were conducted using a semi-industrial scale dryer designed at the Gdańsk University of Technology with a loading capacity of 0.55 m3. The drying process was applied to pine wood grown in the northern part of Pomeranian region in Poland. The specimens were selected taking into consideration the radial angle of the growth rings. During each drying mode, 25 pieces of wood with dimensions (thickness, width, length) of 0.03 m, 0.2 m, and 1.5 m, respectively, were dried. The total color change (ΔE) after drying process and color saturation (h*) before and after drying processes of the wood surface was determined using the normalized CIELAB methods. The obtained results indicated that the color change of the pine wood surface increased simultaneously with the intensification of the drying process. However, the normalized wood quality after drying under intensive drying process conditions remained within the standard limits. The application of intensive drying process conditions remarkably changes the surface color of the obtained material, while remarkably reducing the drying process duration.","PeriodicalId":9172,"journal":{"name":"Bioresources","volume":"139 6","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138622306","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

Possibilities of using organic wastes as a growing medium in soilless culture for cut flower rose 在玫瑰切花无土栽培中使用有机废物作为生长介质的可能性

IF 1.5 4区农林科学

Bioresources Pub Date : 2023-11-30 DOI: 10.15376/biores.19.1.582-594

B. Altun

引用次数: 0

Central composite design for optimization of kenaf-reinforced epoxy composite bonding performance 用于优化 kenaf 增强环氧树脂复合材料粘接性能的中心复合设计

IF 1.5 4区农林科学

Bioresources Pub Date : 2023-11-30 DOI: 10.15376/biores.19.1.605-619

M. Ibrahim, Noremylia Mohd Bakhori, Ariff Farhan Mohd Nor, Roslina Mohammad, Sa’ardin Abd Aziz, Mohd Yusof Md Daud, H. Kuan, M. Mahardika, M. Z. Hassan

{"title":"Central composite design for optimization of kenaf-reinforced epoxy composite bonding performance","authors":"M. Ibrahim, Noremylia Mohd Bakhori, Ariff Farhan Mohd Nor, Roslina Mohammad, Sa’ardin Abd Aziz, Mohd Yusof Md Daud, H. Kuan, M. Mahardika, M. Z. Hassan","doi":"10.15376/biores.19.1.605-619","DOIUrl":"https://doi.org/10.15376/biores.19.1.605-619","url":null,"abstract":"Kenaf fiber is gaining prominence because of its ability as a natural-based reinforced material in advanced composites. However, kenaf contains a hygroscopic natural waxy substance that covers the fiber layer, providing a low surface tension and preventing strong bonding with the polymer matrix. The goal of this study is to optimize the blending parameters of kenaf fiber-reinforced epoxy composites by alkali treatment concentration, length, and fiber-matrix loading using central composite design. The maximum tensile strength was obtained at 6.03 wt% of NaOH concentration, fiber loading of 26.02 wt%, and fiber length at 7.39 mm, which showed a strong correlation between experimental and predicted values. The analysis of variance function model indicated that fiber length, sodium hydroxide concentration, and fiber loading all play important roles in mechanical properties of composites. Based on the fracture surface observations, kenaf fiber composite strength was closely related to bonding at fiber-matrix interfaces. The most common failure modes in the samples were voids, matrix fracture, fiber breakage, weak bonding, and fiber pull-out.","PeriodicalId":9172,"journal":{"name":"Bioresources","volume":"72 12 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139199977","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

Evaluation of rice husk composite boards prepared using different adhesives and processing methods 对使用不同粘合剂和加工方法制备的稻壳复合板进行评估

IF 1.5 4区农林科学

Bioresources Pub Date : 2023-11-30 DOI: 10.15376/biores.19.1.595-604

Suman Pradhan, Edward D. Entsminger, Mostafa Mohammadabadi, Daniel Seale, K. Ragon

引用次数: 0

Microwave-assisted extraction of β-Sitosterol: A by-product from Agave angustifolia Haw bagasse 微波辅助提取β-谷甾醇：龙舌兰蔗渣的副产品

IF 1.5 4区农林科学

Bioresources Pub Date : 2023-11-29 DOI: 10.15376/biores.19.1.568-581

Herminia López-Salazar, B. Camacho-Díaz, M. L. A. Ocampo, R. Campos-Mendiola, R. Martínez-Velarde, Argelia López-Bonilla, A. Jiménez–Aparicio

{"title":"Microwave-assisted extraction of β-Sitosterol: A by-product from Agave angustifolia Haw bagasse","authors":"Herminia López-Salazar, B. Camacho-Díaz, M. L. A. Ocampo, R. Campos-Mendiola, R. Martínez-Velarde, Argelia López-Bonilla, A. Jiménez–Aparicio","doi":"10.15376/biores.19.1.568-581","DOIUrl":"https://doi.org/10.15376/biores.19.1.568-581","url":null,"abstract":"β-sitosterol (BSS) and β-sitosterol glucoside (BSSG) were extracted from Agave angustifolia Haw bagasse using microwave-assisted extraction (MAE). The quantification and characterization of BSS and BSSG were performed through high-performance thin-layer chromatography (HPTLC), Fourier-transform infrared spectroscopy (FT-IR), high-performance liquid chromatography coupled with mass spectrometry (HPLC-MS), and gas chromatography-mass spectrometry (GC-MS). With an extraction time of 9 seconds using MAE, a higher amount of BSS (103.6 mg of β-sitosterol per gram of dry weight of extract) was obtained compared to BSSG (61.6 mg of β-sitosterol glucoside per gram of dry weight of extract). MAE emerges as a promising method for the efficient recovery of β-sitosterol (BSS) and β-sitosterol glucoside (BSSG) from A. angustifolia bagasse. This enriches scientific knowledge regarding phytochemical extraction and holds great potential for various industries, such as pharmaceuticals and nutraceuticals. Additionally, by valorizing the by-products of the agave industry, this research contributes to the sustainable utilization of resources, aligning with the principles of green and circular economy practices.","PeriodicalId":9172,"journal":{"name":"Bioresources","volume":"14 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139210770","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

Comprehensive treatment and disposal of logistics waste in China: Prospects of biomass resource conversion 中国物流废弃物的综合处理和处置：生物质资源转化的前景

IF 1.5 4区农林科学

Bioresources Pub Date : 2023-11-28 DOI: 10.15376/biores.19.1.ma

Hongzhi Ma, Pin Lv, Chen Wang, Jun Zhou

{"title":"Comprehensive treatment and disposal of logistics waste in China: Prospects of biomass resource conversion","authors":"Hongzhi Ma, Pin Lv, Chen Wang, Jun Zhou","doi":"10.15376/biores.19.1.ma","DOIUrl":"https://doi.org/10.15376/biores.19.1.ma","url":null,"abstract":"The exponential growth of China’s economy, coupled with the surge in online commerce, has led to a significant expansion of the logistics industry. In 2022, China’s express delivery industry generated approximately 9 million tons of waste paper and 1.8 million tons of plastic. This study analyzed the current composition and utilization of logistics waste in China, with suggestions for recycling. Logistics waste can be defined as the packaging waste generated in the logistics industry. Corrugated paper and plastic waste were chosen as the objects for utilization. Due to its high cellulose content, corrugated paper can be utilized along with other paper waste for biomass resourcing. Biodegradable plastics can also be converted into biomass resources through the action of specific microorganisms. These polymers can be enzymatically depolymerized by certain bacteria and fungi, yielding valuable organic products. In general, logistics wastes all have potential for biomass resource recovery. By adopting appropriate recovery and conversion technologies, these waste streams can be transformed into high-value bio-based products, such as biofuels, biochemicals, and biopolymers, thus contributing to the development of a circular and sustainable economy.","PeriodicalId":9172,"journal":{"name":"Bioresources","volume":"1 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139227049","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

Agricultural products supply chain risk assessment model construction and application in IOT environment 物联网环境下农产品供应链风险评估模型构建与应用

IF 1.5 4区农林科学

Bioresources Pub Date : 2023-11-28 DOI: 10.15376/biores.19.1.552-567

Yiming Lu

引用次数: 0

Convolutional neural network performance and the factors affecting performance for classification of seven Quercus species using sclereid characteristics in the bark 利用树皮中的硬毛特征对 7 种柞树进行分类的卷积神经网络性能及其影响因素

IF 1.5 4区农林科学

Bioresources Pub Date : 2023-11-27 DOI: 10.15376/biores.19.1.510-524

Jong Ho Kim, B. Purusatama, Alvin Muhammad Savero, Denni Prasetia, J. Jang, Se Young Park, Seung Hwan Lee, Nam Hun Kim

{"title":"Convolutional neural network performance and the factors affecting performance for classification of seven Quercus species using sclereid characteristics in the bark","authors":"Jong Ho Kim, B. Purusatama, Alvin Muhammad Savero, Denni Prasetia, J. Jang, Se Young Park, Seung Hwan Lee, Nam Hun Kim","doi":"10.15376/biores.19.1.510-524","DOIUrl":"https://doi.org/10.15376/biores.19.1.510-524","url":null,"abstract":"Based on the sclereids in the bark of oak species, a convolutional neural network (CNN) was employed to validate species classification performance and its influencing factors. Three optimizers including stochastic gradient descent (SGD), adaptive moment estimation (Adam), root mean square propagation (RMSProp), and dataset augmentation were adopted. The accuracy and loss stabilized at approximately 15 to 20 and 70 to 80 epochs for the augmented and non-augmented condition, respectively. In the last five epochs, the RMSProp-augmented condition achieved the highest accuracy of 89.8%, whereas the Adam-augmented condition achieved the lowest accuracy of 73.8%. Regarding the loss, SGD-non-augmented condition was the lowest at 0.498, whereas Adam-augmented condition was the highest at 2.740. The highest accuracy was influenced by RMSProp at 0.194. Dataset augmentation had a significant influence on accuracy at 0.456. Homogeneous subsets among the validation conditions indicated that the accuracy and loss were classified into the same subset using an augmented dataset during the training, regardless of the optimizer. Only Adam and RMSProp with non-augmented datasets were categorized into the same subset during the test. Hence, species classification using CNN and sclereid characteristics in the bark was feasible, and RMSProp with augmented datasets showed optimal performance for species classification.","PeriodicalId":9172,"journal":{"name":"Bioresources","volume":"27 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139233831","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

Polyhydroxyalkanoate production from food packaging waste paper 利用食品包装废纸生产聚羟基烷酸酯

IF 1.5 4区农林科学

Bioresources Pub Date : 2023-11-27 DOI: 10.15376/biores.19.1.539-551

Wei-Lin Tu, Yu-Chuan Hsiung, Chen-Hsien Liang, Jung-Mei Huang, Chung-Mao Ou, Gia-Luen Guo

{"title":"Polyhydroxyalkanoate production from food packaging waste paper","authors":"Wei-Lin Tu, Yu-Chuan Hsiung, Chen-Hsien Liang, Jung-Mei Huang, Chung-Mao Ou, Gia-Luen Guo","doi":"10.15376/biores.19.1.539-551","DOIUrl":"https://doi.org/10.15376/biores.19.1.539-551","url":null,"abstract":"This study evaluated the production of marine biodegradable plastics, specifically polyhydroxyalkanoates (PHAs), using waste paper from food containers as a novel material source. The results showed that adding dilute sulfuric acid as a pretreatment may have a negative impact on enzyme hydrolysis efficiency. Without pretreatment, the highest glucose concentration was observed in the 50-min heating group. In the experimental group with 1% dilute sulfuric acid as a pretreatment, the highest average glucose concentration was observed in the 25-min treatment group. In flask scale experiments, the C/N ratio was controlled at 10, 20, and 30. The results showed that when the C/N ratio was 10, the PHA/CDM ratios were 16.3 and 23.6 at 48 and 72 h, respectively. After 96 h of cultivation using hydrolysis liquid from the waste paper container as the sole carbon source in a 5-L scale experiment, the PHA/CDM ratio was 28.7 and the PHA concentration was 0.95 g/L. The potential bacterial strain in this study was confirmed to be a Bacillus genus bacterium after strain identification. The signal peaks indicated that the PHA obtained from the Bacillus sp. production process was PHB.","PeriodicalId":9172,"journal":{"name":"Bioresources","volume":"278 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139232476","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