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Phenotypic Plasticity, Growth, Biochemical Composition, Total Phenolic Content, and AntioxidanActivity of Microalga Desmodesmus multivariabilis Under Different Nitrogen and Phosphorus Concentrations 不同氮磷浓度下微藻类Desmodesmus multivariabilis的表型可塑性、生长、生化成分、总酚含量和抗氧化活性
IF 1.5 4区 生物学
Chemical and Biochemical Engineering Quarterly Pub Date : 2024-01-18 DOI: 10.15255/cabeq.2023.2199
F. Akgül, Samet Kösel
{"title":"Phenotypic Plasticity, Growth, Biochemical Composition, Total Phenolic Content, and AntioxidanActivity of Microalga Desmodesmus multivariabilis Under Different Nitrogen and Phosphorus Concentrations","authors":"F. Akgül, Samet Kösel","doi":"10.15255/cabeq.2023.2199","DOIUrl":"https://doi.org/10.15255/cabeq.2023.2199","url":null,"abstract":"The use of microalgae in biotechnological studies is increasing day by day because of their ability to produce and store secondary metabolites under extreme conditions. When the culture conditions such as light, nutrients, pH, and temperature are modified, the synthesis and storage amount of these secondary metabolites change. In this study, the effects of different nitrogen and phosphorus concentrations on the morphological changes, growth, biochemical composition, total phenolic content, and antioxidant activ­ ity of Desmodesmus multivariabilis were investigated. The study results show that changing of the nitrogen and phosphorus concentration in the microalgae culture medium is an effective strategy for changing growth, biochemical composition, total phenolic content, and antioxidant activity parameters of microalgae. All culture conditions should be detected, depending on the substance desired to be ob­ tained from microalga and its biotechnological application. Therefore, this study is substan­ tial as it is the first study on this concept with D. multivariabilis, and for obtaining eco­ nomically important bioactive compounds of this species, this paper will play a key role.","PeriodicalId":9765,"journal":{"name":"Chemical and Biochemical Engineering Quarterly","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2024-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139614121","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Cu/αβ-Mox C as a Highly Selective Catalyst for the Reverse Water-gas Shift Reaction Cu/αβ-Mox C 作为反向水气变换反应的高选择性催化剂
IF 1.5 4区 生物学
Chemical and Biochemical Engineering Quarterly Pub Date : 2024-01-18 DOI: 10.15255/cabeq.2023.2231
Z. Yao, Shuang Liu, Qingshan Rong, Dongmei Liu, Kun Wang, N. Sun
{"title":"Cu/αβ-Mox C as a Highly Selective Catalyst for the Reverse Water-gas Shift Reaction","authors":"Z. Yao, Shuang Liu, Qingshan Rong, Dongmei Liu, Kun Wang, N. Sun","doi":"10.15255/cabeq.2023.2231","DOIUrl":"https://doi.org/10.15255/cabeq.2023.2231","url":null,"abstract":"","PeriodicalId":9765,"journal":{"name":"Chemical and Biochemical Engineering Quarterly","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2024-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139525973","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Purification of Hyodeoxycholic Acid and Chenodeoxycholic Acid from Pig Bile Saponification Solution Using Column Chromatography 利用柱层析技术从猪胆汁皂化液中纯化出 Hyodeoxycholic Acid 和 Chenodeoxycholic Acid
IF 1.5 4区 生物学
Chemical and Biochemical Engineering Quarterly Pub Date : 2024-01-18 DOI: 10.15255/cabeq.2023.2194
Bo Liu, Tianle Chen, Xinyan Chen, Xunuo Li, Kaidierya Abudureheman, Shoufeng Hu, Xingchu Gong
{"title":"Purification of Hyodeoxycholic Acid and Chenodeoxycholic Acid from Pig Bile Saponification Solution Using Column Chromatography","authors":"Bo Liu, Tianle Chen, Xinyan Chen, Xunuo Li, Kaidierya Abudureheman, Shoufeng Hu, Xingchu Gong","doi":"10.15255/cabeq.2023.2194","DOIUrl":"https://doi.org/10.15255/cabeq.2023.2194","url":null,"abstract":".","PeriodicalId":9765,"journal":{"name":"Chemical and Biochemical Engineering Quarterly","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2024-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139614661","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Nitrate Removal Characteristics of Nitrate-reducing Bacteria Pseudomonas sp. XS-18 at Low Carbon-to-nitrogen Ratio 低碳氮比条件下硝酸盐还原菌假单胞菌 XS-18 的硝酸盐去除特性
IF 1.5 4区 生物学
Chemical and Biochemical Engineering Quarterly Pub Date : 2024-01-18 DOI: 10.15255/cabeq.2023.2179
L. L. Yan, Mingyue Y. Yin, Caixu Wang, Mengya Yang, Luoting Sun, Yue Jiao
{"title":"Nitrate Removal Characteristics of Nitrate-reducing Bacteria Pseudomonas sp. XS-18 at Low Carbon-to-nitrogen Ratio","authors":"L. L. Yan, Mingyue Y. Yin, Caixu Wang, Mengya Yang, Luoting Sun, Yue Jiao","doi":"10.15255/cabeq.2023.2179","DOIUrl":"https://doi.org/10.15255/cabeq.2023.2179","url":null,"abstract":"Low carbon-to-nitrogen (C/N) ratios are the main characteristic of domestic waste-water. In this study, we evaluated the nitrate removal characteristics of Pseudomonas sp. XS-18 at low C/N ratios (4.0 and 6.0) and pH 11.0. We also analyzed the causes of the nitrate removal at low C/N ratios in this strain. At pH 11.0 and a C/N ratio of 4.0, the strain was effective in removing nitrate. Additionally, the total organic carbon content decreased over time at low C/N ratios, requiring more energy to complete vital activities. Furthermore, low C/N conditions resulted in less strain secretion compared to high C/N settings, and the polysaccharide content degraded more quickly than protein over time. To provide a carbon source for the nitrate reduction process, strains with low C/N ratio and high pH secreted more soluble microbial by-products. This strain is able to metabolize its own secreted extracellular polymeric substances as a carbon source to enhance nitrate removal.","PeriodicalId":9765,"journal":{"name":"Chemical and Biochemical Engineering Quarterly","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2024-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139615119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Enhanced Esterification Activity and Thermostability of Imprinted Poly(Ethylene Glycol)-Lipase Complex 增强印迹聚（乙二醇）-脂肪酶复合物的酯化活性和热稳定性
IF 1.5 4区 生物学
Chemical and Biochemical Engineering Quarterly Pub Date : 2024-01-18 DOI: 10.15255/cabeq.2023.2205
M. Matsumoto, Yoshiro Tahara
{"title":"Enhanced Esterification Activity and Thermostability of Imprinted Poly(Ethylene Glycol)-Lipase Complex","authors":"M. Matsumoto, Yoshiro Tahara","doi":"10.15255/cabeq.2023.2205","DOIUrl":"https://doi.org/10.15255/cabeq.2023.2205","url":null,"abstract":"Although the range of applications for enzymatic reactions in organic solvents is rapidly expanding, this study focused on the enzymatic activity in the esterification of lauric acid with benzyl alcohol, and thermostability of lipase using poly(ethylene glycol) (PEG)-lipase complex and molecular imprinting techniques. The catalytic activity was enhanced through molecular imprinting and the PEG-lipase complex. The imprinting operation was particularly effective for catalytic activity after forming the PEG-lipase complex. The kinetic analysis of the lipase-catalyzed esterification revealed that the increase in esterification rate with imprinted lipases was mainly due to the higher maximum rate achieved by the system. The thermostability of the lipases was significantly improved by imprinting at all temperatures (50~70 °C). After forming a PEG-lipase complex, the imprinted lipase exhibited much higher reactivity and thermostability compared to the native lipase and the imprinted PEG-lipase complex.","PeriodicalId":9765,"journal":{"name":"Chemical and Biochemical Engineering Quarterly","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2024-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139616381","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Azeotropic Behavior of the 2-Methylpropan-2-ol + water + 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide System 2-甲基-2-丙醇 + 水 + 1-乙基-3-甲基咪唑鎓双(三氟甲基磺酰基)亚胺体系的共沸行为
IF 1.5 4区 生物学
Chemical and Biochemical Engineering Quarterly Pub Date : 2024-01-18 DOI: 10.15255/cabeq.2023.2219
Jan Pavlíček, G. Bogdanić, Ivan Wichterle
{"title":"Azeotropic Behavior of the 2-Methylpropan-2-ol + water + 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide System","authors":"Jan Pavlíček, G. Bogdanić, Ivan Wichterle","doi":"10.15255/cabeq.2023.2219","DOIUrl":"https://doi.org/10.15255/cabeq.2023.2219","url":null,"abstract":"Vapor-liquid equilibrium data were measured isothermally in the near-azeotropic region of the 2-methylpropan-2-ol + water + 1-ethyl-3-methylimidazolium bis(trifluoro-methylsulfonyl) imide system at 333.15, 343.15, and 353.15 K. The data were processed using a recently developed method based on a small number of experiments that provides a complete thermodynamic description of the azeotropic behavior. The parameters of the third-order Redlich-Kister equation were correlated with the ionic liquid concentration to determine an analytical dependence of both the azeotropic composition and the pressure.","PeriodicalId":9765,"journal":{"name":"Chemical and Biochemical Engineering Quarterly","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2024-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139614832","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","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 Reaction Parameters and Feedstock Type on the Synthesis of Fatty Acid Propyl, Butyl, Isobutyl, Pentyl, and Isopentyl Esters 反应参数和原料类型对脂肪酸丙基、丁基、异丁基、戊基和异戊基酯合成的影响
4区 生物学
Chemical and Biochemical Engineering Quarterly Pub Date : 2023-10-04 DOI: 10.15255/cabeq.2023.2184
Mia Gotovuša, Ivona Pečurlić, Valentino Petrić, Paula Huzjak, Marta Krasić, Martina Zadravec, Lucija Konjević, Fabio Faraguna
{"title":"Influence of Reaction Parameters and Feedstock Type on the Synthesis of Fatty Acid Propyl, Butyl, Isobutyl, Pentyl, and Isopentyl Esters","authors":"Mia Gotovuša, Ivona Pečurlić, Valentino Petrić, Paula Huzjak, Marta Krasić, Martina Zadravec, Lucija Konjević, Fabio Faraguna","doi":"10.15255/cabeq.2023.2184","DOIUrl":"https://doi.org/10.15255/cabeq.2023.2184","url":null,"abstract":"In recent decades, conventional biodiesel synthesis from methanol or ethanol and sunflower and rapeseed oil as feedstock has also introduced the use of higher and branched alcohols and the use of waste sources of triglycerides. This study examined the influence of reactant molar ratio (5:1–12:1), mass fraction of the potassium hydroxide catalyst (1–3 wt%), time (30–120 min), type of feedstock and alcohol on the conversion of fatty acid alkyl esters. The results showed that the presence of structural branching had a negative influence on the reaction conversion. Regarding the feedstocks, the high - est conversions were obtained when using coconut oil rich in short-chain saturated fatty acids, while the conversions of biodiesel obtained from animal fat and unsaturated oils were lower. Molar ratio of the reactants and the mass fraction of the catalyst had the highest influence on the reaction conversion.","PeriodicalId":9765,"journal":{"name":"Chemical and Biochemical Engineering Quarterly","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135591029","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Lauric Acid-based Polyol Esters as Potential Bio-based Lubricants for Diesel Fuel 月桂酸多元醇酯作为生物基柴油润滑油的应用前景
4区 生物学
Chemical and Biochemical Engineering Quarterly Pub Date : 2023-10-04 DOI: 10.15255/cabeq.2023.2185
Ivan Pucko, Kristina Crnjac, Fabio Faraguna
{"title":"Lauric Acid-based Polyol Esters as Potential Bio-based Lubricants for Diesel Fuel","authors":"Ivan Pucko, Kristina Crnjac, Fabio Faraguna","doi":"10.15255/cabeq.2023.2185","DOIUrl":"https://doi.org/10.15255/cabeq.2023.2185","url":null,"abstract":"In this paper, lubricants based on lauric acid and different polyols – neopentyl glycol (NPG), trimethylolpropane (TMP) and pentaerythritol (PE) – were synthesized. After purification, their purity of > 97 mol% was confirmed by infrared spectroscopy and pro - ton nuclear magnetic resonance. Synthesized lubricants 100 to 5000 ppm formulations with diesel showed similar density, kinematic viscosity, and low-temperature behavior to diesel according to standard tests, meaning that they can be used in current diesel engines. They have improved the lubricity of the formulations, as confirmed by a lower coefficient of friction, and an almost 50 % improvement in wear scar diameter (accord - ing to EN 12156-1).","PeriodicalId":9765,"journal":{"name":"Chemical and Biochemical Engineering Quarterly","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135592391","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Amoxicillin Biodegradation with Bacillus subtilis and Pseudomonas aeruginosa: Characterization of Relevant Degradation Products 枯草芽孢杆菌和铜绿假单胞菌对阿莫西林的生物降解:相关降解产物的表征
4区 生物学
Chemical and Biochemical Engineering Quarterly Pub Date : 2023-10-04 DOI: 10.15255/cabeq.2023.2182
Simona Kovačić, Vilma Lovrinčević, M. Vuković Domanovac, Dragana Vuk
{"title":"Amoxicillin Biodegradation with Bacillus subtilis and Pseudomonas aeruginosa: Characterization of Relevant Degradation Products","authors":"Simona Kovačić, Vilma Lovrinčević, M. Vuković Domanovac, Dragana Vuk","doi":"10.15255/cabeq.2023.2182","DOIUrl":"https://doi.org/10.15255/cabeq.2023.2182","url":null,"abstract":".","PeriodicalId":9765,"journal":{"name":"Chemical and Biochemical Engineering Quarterly","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135592712","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Aquatic Toxicity of Polyethylene and Microcrystalline Cellulose Microbeads Used as Abrasives in Cosmetics 化妆品中用作磨料的聚乙烯和微晶纤维素微珠的水生毒性
4区 生物学
Chemical and Biochemical Engineering Quarterly Pub Date : 2023-10-04 DOI: 10.15255/cabeq.2023.2181
Martina Miloloža, Ula Rozman, D. Kučić Grgić, Gabriela Kalčikova
{"title":"Aquatic Toxicity of Polyethylene and Microcrystalline Cellulose Microbeads Used as Abrasives in Cosmetics","authors":"Martina Miloloža, Ula Rozman, D. Kučić Grgić, Gabriela Kalčikova","doi":"10.15255/cabeq.2023.2181","DOIUrl":"https://doi.org/10.15255/cabeq.2023.2181","url":null,"abstract":"Microplastics have been part of personal care products for years, but due to micro - plastic pollution, many companies have replaced microplastics with natural particles, such as microcrystalline cellulose. Although natural particles are considered more envi - ronmentally friendly, their ecotoxicological profile is unknown. In this context, the aim of this study was to compare the ecotoxicity of polyethylene and microcrystalline cellu - lose microbeads, both extracted from a cosmetic product. The effects of the two types of particles on the aquatic macrophyte Lemna minor and the crustacean Daphnia magna , as well as the bioadhesion of the particles to Lemna minor were evaluated. The results showed no significant effects of either particle on the specific growth rate, root length, and chlorophyll content of Lemna minor . The bioadhesion of both types of particles to the plant biomass was comparable. Furthermore, no significant effects were observed on the mobility and body length of Daphnia magna . Thus, the investigated polyethylene and cellulose microbeads showed no significant toxic effects on the tested organisms. How - ever, due to the persistence of polyethylene in the environment, the use of polyethylene microbeads in cosmetics and personal care products should be avoided","PeriodicalId":9765,"journal":{"name":"Chemical and Biochemical Engineering Quarterly","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135592222","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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