Journal of Supercritical Fluids最新文献_第7页

An experimental and modeling study of propane oxidation kinetics in low temperature supercritical water 低温超临界水中丙烷氧化动力学的实验和模型研究

IF 3.4 3区工程技术

Journal of Supercritical Fluids Pub Date : 2024-08-26 DOI: 10.1016/j.supflu.2024.106392

A. Mansfield , N. Sophonrat

引用次数: 0

Chemometric assisted green extraction of tyrosinase inhibitor from Durio zibethinus rind for skin whitening agents in cosmetic products 化学计量学辅助绿色提取 Durio zibethinus 外皮中的酪氨酸酶抑制剂，用于化妆品中的皮肤美白剂

IF 3.4 3区工程技术

Journal of Supercritical Fluids Pub Date : 2024-08-26 DOI: 10.1016/j.supflu.2024.106393

Sofiyyah Ismail , Erna Normaya , Syamimi Sulfiza Shamsuri , Anwar Iqbal , Mohd Bijarimi Mat Piah , Sharifuddin Md Zain , Mohammad Norazmi Ahmad

{"title":"Chemometric assisted green extraction of tyrosinase inhibitor from Durio zibethinus rind for skin whitening agents in cosmetic products","authors":"Sofiyyah Ismail , Erna Normaya , Syamimi Sulfiza Shamsuri , Anwar Iqbal , Mohd Bijarimi Mat Piah , Sharifuddin Md Zain , Mohammad Norazmi Ahmad","doi":"10.1016/j.supflu.2024.106393","DOIUrl":"10.1016/j.supflu.2024.106393","url":null,"abstract":"<div>Cosmetics typically contain artificial substances that could be harmful to people's health. Extended usage and exposure to these harmful substances are frequently linked to a number of negative impacts and illnesses. This study processed a Durio zibethinus rind, rich in natural antityrosinase properties, with a chemometric-assisted green extraction system. The TPC value was obtained at the optimum conditions (34.4 MPa, 62°C, and 86 min). GC-MS and FTIR spectroscopy were performed to identify the phenolic compounds and their functional group, respectively. The optimized extract contains 77 % of the mushroom tyrosinase activity. PCA shows that aspidospermidin-17-ol,1-acetyl-19,21-apoxy-15,16-dimethoxy- (AP) resembles the similar cluster with hydroquinone. COSMO-RS was used to investigate the extraction mechanism of CO2 and AP during the SFE process. DFT and molecular docking were used to calculate the chemical reactivity and explain the tyrosinase inhibition mechanism, respectively. ADME-Tox and OSIRIS Property Explorer showed no violation of Lipinski’s rule, and toxicity with AP. In conclusion, a high-value, natural and safe cosmetic ingredient (AP) for cosmetopea was discovered using an innovative green extraction system.</div>","PeriodicalId":17078,"journal":{"name":"Journal of Supercritical Fluids","volume":"214 ","pages":"Article 106393"},"PeriodicalIF":3.4,"publicationDate":"2024-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142130245","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Supercritical fluid impregnation of phenolic compounds from passion fruit bagasse in corn starch aerogels: Phase behavior and effect of operation mode 玉米淀粉气凝胶中百香果蔗渣酚类化合物的超临界流体浸渍：相行为和操作模式的影响

IF 3.4 3区工程技术

Journal of Supercritical Fluids Pub Date : 2024-08-24 DOI: 10.1016/j.supflu.2024.106387

Erick Jarles Santos de Araujo , Arthur Jessé Oliveira Braga , José Claudio Klier Monteiro Filho , Papa Matar Ndiaye , Rodney Alexandre Ferreira Rodrigues , Julian Martínez

引用次数: 0

Green preparation of biodegradable poly (butylene adipate-co-terephthalate) foam modified with bio-based epoxidized cardanol using supercritical fluid foaming 利用超临界流体发泡技术绿色制备生物基环氧硬脂醇改性的可生物降解聚（己二酸丁二醇酯-对苯二甲酸丁二醇酯）泡沫塑料

IF 3.4 3区工程技术

Journal of Supercritical Fluids Pub Date : 2024-08-23 DOI: 10.1016/j.supflu.2024.106391

Jie Yuan, Kun Xue, Xiulu Gao, Yichong Chen, Ling Zhao, Dongdong Hu

{"title":"Green preparation of biodegradable poly (butylene adipate-co-terephthalate) foam modified with bio-based epoxidized cardanol using supercritical fluid foaming","authors":"Jie Yuan, Kun Xue, Xiulu Gao, Yichong Chen, Ling Zhao, Dongdong Hu","doi":"10.1016/j.supflu.2024.106391","DOIUrl":"10.1016/j.supflu.2024.106391","url":null,"abstract":"<div>Poly (butylene adipate-co-terephthalate) (PBAT) foam is a potential alternative to conventional packaging materials. However, its wide adoption is hindered by issues such as low foaming–expansion ratios and shrinkage. A series of biodegradable epoxidized cardanol (EC)-modified PBAT foams were prepared using supercritical carbon dioxide (CO2) foaming. The addition of EC enhanced the crystallisation temperature and stiffness, and improved the rheological properties, thereby promoting polymer foamability. When the EC content reached 0.6 wt%, lightweight foams with the highest initial expansion ratio (Rv) of 48.4 were produced before shrinkage. N2 was introduced as a co-blowing agent to reduce shrinkage of the PBAT foams, resulting in the production of a microcellular foam with a stable Rv of 12.9. EC improved the foamability of PBAT while also introducing the co-blowing agent N2 to resist shrinkage. These findings can serve as valuable insights for the large-scale production of lightweight biodegradable foams.</div>","PeriodicalId":17078,"journal":{"name":"Journal of Supercritical Fluids","volume":"214 ","pages":"Article 106391"},"PeriodicalIF":3.4,"publicationDate":"2024-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142097068","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Advancements in conventional and supercritical CO2 extraction of Moringa oleifera bioactives for cosmetic applications: A review 传统和超临界二氧化碳萃取美容用辣木籽生物活性成分的进展：综述

IF 3.4 3区工程技术

Journal of Supercritical Fluids Pub Date : 2024-08-22 DOI: 10.1016/j.supflu.2024.106388

Júlia C. Kessler - , Isabel M. Martins , Yaidelin A. Manrique , Alírio E. Rodrigues , Maria Filomena Barreiro , Madalena M. Dias

{"title":"Advancements in conventional and supercritical CO2 extraction of Moringa oleifera bioactives for cosmetic applications: A review","authors":"Júlia C. Kessler - , Isabel M. Martins , Yaidelin A. Manrique , Alírio E. Rodrigues , Maria Filomena Barreiro , Madalena M. Dias","doi":"10.1016/j.supflu.2024.106388","DOIUrl":"10.1016/j.supflu.2024.106388","url":null,"abstract":"<div>Moringa oleifera L. extracts (Mo) have attracted attention as a sustainable and effective alternative to synthetic ingredients for cosmetic formulations. The unique and diverse phytochemical profile of the Mo tree enhances the quality and appeal of commercial products, as evidenced by numerous studies and patents. Supercritical carbon dioxide extraction (SFE-CO2) is particularly advantageous for this purpose, offering enhanced thermostability and selectivity of extracted compounds compared to conventional methods. This review examines the safety and efficacy of Mo seed, leaf, and root extracts as cosmetic ingredients, focusing on their bioavailability and performance by considering the thermodynamics and operational benefits of SFE-CO2. The collected data highlights the method’s efficiency in terms of the total extraction yield and the recovery of target compounds from Mo, providing insights from optimisation studies and linking the solvation power of supercritical CO2 with the significant non-polar and low-polar compounds present in Mo extracts.</div>","PeriodicalId":17078,"journal":{"name":"Journal of Supercritical Fluids","volume":"214 ","pages":"Article 106388"},"PeriodicalIF":3.4,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0896844624002237/pdfft?md5=5e983ad8cc9d243bcb3b8a7aecab4d67&pid=1-s2.0-S0896844624002237-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142083256","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental and numerical study on the heat transfer deterioration of supercritical nitrogen in a vertical tube 垂直管中超临界氮气传热恶化的实验和数值研究

IF 3.4 3区工程技术

Journal of Supercritical Fluids Pub Date : 2024-08-17 DOI: 10.1016/j.supflu.2024.106376

Runfeng Xiao , Jing Cao , Liang Chen , Zixin Zhang , Bin Ye , Yijie Cai , Yu Hou

{"title":"Experimental and numerical study on the heat transfer deterioration of supercritical nitrogen in a vertical tube","authors":"Runfeng Xiao , Jing Cao , Liang Chen , Zixin Zhang , Bin Ye , Yijie Cai , Yu Hou","doi":"10.1016/j.supflu.2024.106376","DOIUrl":"10.1016/j.supflu.2024.106376","url":null,"abstract":"<div>Supercritical cryogenic fluids exhibit significant potential for diverse applications across various industries, including liquid air energy storage, high-temperature superconducting cables, and hypersonic vehicle engine cooling. Heat transfer deterioration (HTD) poses a substantial risk to the system safety. In this study, we constructed an experimental system and performed numerical simulations to illustrate buoyancy (Bu) and thermal acceleration (Ac) effects on HTD of supercritical nitrogen (SCN2). The newly established thresholds for buoyancy and thermal acceleration (Buth=1.8×10−4 and Acth=4.4×10−5), considering pseudo two-phase characteristics, can effectively capture buoyancy and thermal acceleration in the first and second HTD regions. The first region is influenced by the combined effect of buoyancy and thermal acceleration, while the second region is mainly influenced by thermal acceleration. The new correlations and thresholds accurately predict the occurrence of HTD and the peak position. The experimental and simulation results contribute to understanding the impact of buoyancy and thermal acceleration on SCN2 HTD.</div>","PeriodicalId":17078,"journal":{"name":"Journal of Supercritical Fluids","volume":"214 ","pages":"Article 106376"},"PeriodicalIF":3.4,"publicationDate":"2024-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142097191","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High-pressure phase equilibrium for carbon dioxide solubility with biofuels: Experimental and thermodynamic insights in 2,5-dimethylfuran and methyl levulinate 生物燃料中二氧化碳溶解度的高压相平衡：2,5-二甲基呋喃和乙酰丙酸甲酯的实验和热力学见解

IF 3.4 3区工程技术

Journal of Supercritical Fluids Pub Date : 2024-08-13 DOI: 10.1016/j.supflu.2024.106378

Amal Ayad , Mojgan Ebrahiminejadhasanabadi , Wayne Michael Nelson , Latifa Negadi , Paramespri Naidoo

引用次数: 0

Enhancing anti-diabetic activity and reducing cytotoxicity of T. crispa extracts through sustainable approach of pressurized hot water extraction and micelle-mediated separation 通过加压热水萃取和胶束介导分离的可持续方法提高酥树蕨提取物的抗糖尿病活性并降低其细胞毒性

IF 3.4 3区工程技术

Journal of Supercritical Fluids Pub Date : 2024-08-13 DOI: 10.1016/j.supflu.2024.106377

Kunat Suktham , Suvimol Surassmo , Chaisak Chansriniyom , Motonobu Goto , Artiwan Shotipruk

{"title":"Enhancing anti-diabetic activity and reducing cytotoxicity of T. crispa extracts through sustainable approach of pressurized hot water extraction and micelle-mediated separation","authors":"Kunat Suktham , Suvimol Surassmo , Chaisak Chansriniyom , Motonobu Goto , Artiwan Shotipruk","doi":"10.1016/j.supflu.2024.106377","DOIUrl":"10.1016/j.supflu.2024.106377","url":null,"abstract":"<div>In this study, pressurized hot water extraction (PHWE) was evaluated for the recovery of anti-diabetic borapetoside C (BPC) from T. crispa stems. The maximum BPC extraction efficiency obtained at 100 ˚C, 2.5 MPa and 5.0 mL/min was considerably higher than that obtained by the conventional methods. Under optimized conditions, one-site kinetic desorption model could most accurately describe the PHWE behavior, suggesting an intra-particle diffusion-controlled mechanism. The undesirable compounds in the extract were further removed by micelle-mediated separation (MMS), in which Tween 80 was added, followed by NaCl addition and slight temperature increase to induce phase separation. At the most suitable MMS condition, with 0.028 mM Tween 80, 0.4 M NaCl, at 85 ˚C, the majority (87 %) of BPC could be recovered in the aqueous phase after 40 min. After MMS, the resulting extract exhibited low cytotoxicity against L6 and HepG2 cells while maintaining significant α-glucosidase and α-amylase inhibition activities.</div>","PeriodicalId":17078,"journal":{"name":"Journal of Supercritical Fluids","volume":"214 ","pages":"Article 106377"},"PeriodicalIF":3.4,"publicationDate":"2024-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142021314","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study of potassium deactivation rule in supercritical water gasification of coal with K2CO3 as catalyst 以 K2CO3 为催化剂的超临界水煤气化过程中钾失活规律研究

IF 3.4 3区工程技术

Journal of Supercritical Fluids Pub Date : 2024-08-12 DOI: 10.1016/j.supflu.2024.106375

Chenchen Zhou, Hui Jin, Zhiwei Ge, Liejin Guo

{"title":"Study of potassium deactivation rule in supercritical water gasification of coal with K2CO3 as catalyst","authors":"Chenchen Zhou, Hui Jin, Zhiwei Ge, Liejin Guo","doi":"10.1016/j.supflu.2024.106375","DOIUrl":"10.1016/j.supflu.2024.106375","url":null,"abstract":"<div>K2CO3 has a good catalytic effect in supercritical water gasification (SCWG) of coal. However, researchers have mainly focused on the effects of coal gasification, while the potassium mass transfer process has rarely been studied. Herein, the distribution pattern of potassium during the SCWG of coal and the factors influencing potassium deactivation were experimentally obtained. Through the detection and analysis of the residues after the SCWG of coal, it is found that potassium only exists in the forms of liquid and solid and the potassium in the residue exists in the form of insoluble potassium silica alumina, which does not have a catalytic effect. At a high reaction temperature, the reaction time is longer, and when the silica–aluminum content in coal is higher, the potassium deactivate rate is also higher. The molar contents of potassium and aluminum in the coal gasification residue are linearly correlated, with a ratio of approximately 1:1. Reducing the aluminum content in coal can effectively reduce potassium deactivation. In the SCWG of the Hebi coal, the deactivation rate of potassium reduced from 80.88 % to 17.75 % after acid washing. In the SCWG of the ash-free coal, the carbon gasification efficiency (CE) and potassium content in the liquid were above 95 % after each experiment, there was no deactivation of potassium, and the residual potassium solution remained catalytically effective after the SCWG of the ash-free coal.</div>","PeriodicalId":17078,"journal":{"name":"Journal of Supercritical Fluids","volume":"214 ","pages":"Article 106375"},"PeriodicalIF":3.4,"publicationDate":"2024-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141978449","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Density and viscosity of orange peel oil saturated with pressurized CO2 加压二氧化碳饱和橙皮油的密度和粘度

IF 3.4 3区工程技术

Journal of Supercritical Fluids Pub Date : 2024-08-08 DOI: 10.1016/j.supflu.2024.106373

Mariana Fortunatti-Montoya , Pablo E. Hegel , Selva Pereda

引用次数: 0