The Open Chemical Engineering Journal最新文献_第7页

Solubility of Mixtures Containing Soybean Oil, Ionic Liquid and Methanol 含大豆油、离子液体和甲醇混合物的溶解度

The Open Chemical Engineering Journal Pub Date : 2016-04-08 DOI: 10.2174/1874123101610010041

M. Manic, Vesna Najdanovic-Visak

引用次数: 1

Semi-Empirical Models and Cubic Equations of State for Correlation of Solids Solubility in scCO2: From Simple to Complex Substances scCO2中固体溶解度相关的半经验模型和三次状态方程:从简单到复杂物质

The Open Chemical Engineering Journal Pub Date : 2016-04-08 DOI: 10.2174/1874123101610010029

J. Coelho, R. Filipe, A. Palavra, G. Naydenova, D. Yankov, R. Stateva

{"title":"Semi-Empirical Models and Cubic Equations of State for Correlation of Solids Solubility in scCO2: From Simple to Complex Substances","authors":"J. Coelho, R. Filipe, A. Palavra, G. Naydenova, D. Yankov, R. Stateva","doi":"10.2174/1874123101610010029","DOIUrl":"https://doi.org/10.2174/1874123101610010029","url":null,"abstract":"The present paper examines the performance of cubic equations of state (CEoSs) and semi-empirical density-based models in correlating the solubility in supercritical carbon dioxide (scCO2) of several solid compounds of interest to the food industry, namely 2-propenamide, bixin, β-carotene and C-tetramethylcalix[4]resorcinarene. The four target solutes are with increasing structural complexity and, are typically pure solids, at ambient or slightly elevated temperatures. The Soave-Kwong-Redlich (SRK) CEoS with the one-fluid van der Waals mixing rule was chosen as representative of the class of CEoSs, while the group of the density-based models includes Chrastil model, Kumar and Johnston model, Bartle et al. model, Méndez–Santiago and Teja model, Garlapati and Madras model, Nejad et al. model and Khansary et al. model. The results obtained reveal that the more recently advocated density-based models (Garlapati and Madras, Nejad et al. and Khansary et al. models) perform better than the other models with overall average absolute deviations, AARD %, of 6.3, 7.8 and 7.2 %, respectively. The 9.1% overall AARD for the SRK CEoS was considered satisfactory since it can be used as a reliable thermodynamic model to predict the solubility of any compound for which there are no sufficient experimental data available.","PeriodicalId":22933,"journal":{"name":"The Open Chemical Engineering Journal","volume":"10 1","pages":"29-40"},"PeriodicalIF":0.0,"publicationDate":"2016-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89600829","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}

引用次数: 1

Solubility of Bioactive Substances in Ethyl Lactate + Water Mixtures: Ferulic Acid and Caffeine 生物活性物质在乳酸乙酯+水混合物中的溶解度:阿魏酸和咖啡因

The Open Chemical Engineering Journal Pub Date : 2016-04-08 DOI: 10.2174/1874123101610010050

D. Villanueva-Bermejo, G. Reglero, R. Stateva, T. Fornari

引用次数: 6

Editorial: Current Topics in Phase Equilibria of Systems for Food Application 社论:食品应用系统相平衡的当前主题

The Open Chemical Engineering Journal Pub Date : 2016-04-08 DOI: 10.2174/1874123101610010001

T. Fornari, R. Stateva, A. Bonilla-Petriciolet

引用次数: 1

Liquid-liquid Equilibrium in Systems Containing Olive Oil, Free Fatty Acids, Ethanol and Water 含有橄榄油、游离脂肪酸、乙醇和水的液-液平衡

The Open Chemical Engineering Journal Pub Date : 2016-04-08 DOI: 10.2174/1874123101610010010

Daniel F. B. Lima, Luísa D. F. Santos, Daniel B. Pereira, M. Lenzi, M. Corazza, F. Voll

引用次数: 5

Useful Bioactive Substances from Wastes: Recovery of Trans-Resveratrol from Grapevine Stems 废物中有用的生物活性物质:从葡萄藤茎中回收反式白藜芦醇

The Open Chemical Engineering Journal Pub Date : 2016-04-08 DOI: 10.2174/1874123101610010004

G. Angelov, L. Boyadzhiev, S. Georgieva

{"title":"Useful Bioactive Substances from Wastes: Recovery of Trans-Resveratrol from Grapevine Stems","authors":"G. Angelov, L. Boyadzhiev, S. Georgieva","doi":"10.2174/1874123101610010004","DOIUrl":"https://doi.org/10.2174/1874123101610010004","url":null,"abstract":"The methods for producing natural resveratrol are of big interest because of the many health benefits of this substance and its increasing use in functional foods, food supplements and para-pharmaceutical preparations. Generally, resveratrol is extracted from different natural sources, most of them usually produced for consumption purposes (grapes, nuts). This paper presents a method for recovery of resveratrol from a widely available raw material grapevine stems, a by-product of vine pruning. An efficient extraction-fractionation scheme is developed, based on shifting the phase equilibrium, by which more concentrated extracts of resveratrol are obtained. After a simple extraction, the initial extract is further separated into two fractions, containing either water or ethanol-soluble compounds. Using this approach, the resveratrol’s low water solubility helps isolate it from other water-soluble substances. The resulting product is almost ten times more concentrated in trans-resveratrol than the initial total extract. Additionally, a fraction containing water-soluble polyphenols is obtained, which could be used for water-based pharmaceutical and cosmetic preparations.","PeriodicalId":22933,"journal":{"name":"The Open Chemical Engineering Journal","volume":"28 1","pages":"4-9"},"PeriodicalIF":0.0,"publicationDate":"2016-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91438802","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}

引用次数: 11

Retraction Note: Seasonal Variation of Tannin and Nutrient in Aegiceras corniculatum Leaves in Zhangjiang Mangrove Ecosystem 张江红树林生态系统山菖蒲叶片单宁和养分的季节变化

The Open Chemical Engineering Journal Pub Date : 2015-12-31 DOI: 10.2174/1874123101509010161

Minshen Huang, Li-hua Zhang, Shudong Wei, Qi Zeng, Haichao Zhou, Yi-ming Lin

引用次数: 0

Research on Formation Mechanism of Jiyang Shallow Saline GroundWater 济阳浅层咸化地下水形成机理研究

The Open Chemical Engineering Journal Pub Date : 2015-11-10 DOI: 10.2174/1874123101509010155

Zhang Fengjuan, Xing Liting, Wang Song, Zhuang Huibo, Dou Tongwen, Yang Zengyuan

引用次数: 0

The Research of the Mineralogical and Element Geochemical Characteristics of Bauxite in Yunfeng, Qingzhen, in Central Guizhou Province, China 贵州中部清镇云峰铝土矿矿物学及元素地球化学特征研究

The Open Chemical Engineering Journal Pub Date : 2015-10-22 DOI: 10.2174/1874123101509010134

Yang Wu, Dai Tagen, Long Yongzhen

引用次数: 0

Seasonal Variation of Tannin and Nutrient in Aegiceras corniculatum Leaves in Zhangjiang Mangrove Ecosystem 张江红树林生态系统山菖蒲叶片单宁和养分的季节变化

The Open Chemical Engineering Journal Pub Date : 2015-10-22 DOI: 10.2174/1874123101509010143

Minshen Huang, L. Zhang, Shudong Wei, Qi Zeng, Haichao Zhou, Yi-ming Lin

{"title":"Seasonal Variation of Tannin and Nutrient in Aegiceras corniculatum Leaves in Zhangjiang Mangrove Ecosystem","authors":"Minshen Huang, L. Zhang, Shudong Wei, Qi Zeng, Haichao Zhou, Yi-ming Lin","doi":"10.2174/1874123101509010143","DOIUrl":"https://doi.org/10.2174/1874123101509010143","url":null,"abstract":"Seasonal dynamics of total phenolics (TP), extractable condensed tannins (ECT), protein-bound condensed tannins (PBCT), fiber-bound condensed tannins (FBCT), total condensed tannins (TCT) and nitrogen contents in sun and shade leaves of Aegiceras corniculatum were studied in the Zhangjiang Estuary, Fujian Province, China. The contents of TP, ECT and TCT in the sun leaves were significantly higher than those in the shade leaves through the season. The N content in sun leaves was higher than that in shade leaves in the autumn, while it was lower in the summer, and there was no significant difference in the winter and spring. With the respect to the P through the year, P content in the sun leaves was different between seasons, with the highest in winter and the lowest in summer. In addition, the TP:N and ECT:N ratios in sun leaves were significantly higher than those in shade leaves except in autumn. High tannin levels and TP:N and ECT:N ratios in the sun leaves not only can reduce oxidative stress, but also improve the ability of resisting plant diseases and insect pests.","PeriodicalId":22933,"journal":{"name":"The Open Chemical Engineering Journal","volume":"7 1","pages":"143-148"},"PeriodicalIF":0.0,"publicationDate":"2015-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84382288","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}

引用次数: 2