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《环境科学与工程前沿(英文)》 2023年 第17卷 第7期 doi: 10.1007/s11783-023-1687-z
● Organic solvent extracted fewer Cd/Pb in rapeseed oil than physical pressing.
关键词: Rapeseed oil Oil extraction technologies Human health risk assessment Cd/Pb-contaminated farmland Substitute planting
EXTRACTION AND EVALUATION OF EDIBLE OIL FROM SCHIZOCHYTRIUM SP. USING AN AQUEOUS ENZYMATIC METHOD
《农业科学与工程前沿(英文)》 2021年 第8卷 第4期 页码 623-634 doi: 10.15302/J-FASE -2021400
Schizochytrium sp., a marine microalga, is a potential source of edible oil due to its short growth cycle and rapid lipid accumulation, especially of docosahexaenoic acid. An approach to isolate edible microalgal oil from Schizochytrium sp. using aqueous enzymatic extraction (AEE) was developed. Parameters were optimized by single-factor experiments followed by Box-Behnken design. Proteases were effective in extracting oil. The maximum free oil recovery (49.7%±0.58%) and total oil recovery (68.1%±0.94%) were obtained under optimum conditions of liquid-to-solid ratio of 4.8:1, a 2.5% enzyme concentration of papain and an extraction time of 2.2 h. There was a significant difference (P<0.05) in polyunsaturated fatty acid composition between microalgal oil obtained by AEE and by Soxhlet extraction, with the former having superior physiochemical properties and higher concentrations of bioactive components including total phenolic compounds and total tocopherols. These findings indicate a potential application of AEE for extraction of oil from Schizochytrium sp.
J. Sargolzaei, A. Hedayati Moghaddam
《化学科学与工程前沿(英文)》 2013年 第7卷 第3期 页码 357-365 doi: 10.1007/s11705-013-1336-3
关键词: oil recovery artificial intelligence extraction neural networks supercritical extraction
Oxidation-extraction desulfurization of model oil over Zr-ZSM-5/SBA-15 and kinetic study
Chuanzhu LU,Hui FU,Huipeng LI,Hua ZHAO,Tianfeng CAI
《化学科学与工程前沿(英文)》 2014年 第8卷 第2期 页码 203-211 doi: 10.1007/s11705-014-1420-3
关键词: composite molecular sieve oxidation desulfuration extraction kinetic
Xiaojuan NIU, Shuyi QIU, Yuangen WU, Jie YUAN, Yingying XU
《化学科学与工程前沿(英文)》 2011年 第5卷 第1期 页码 122-125 doi: 10.1007/s11705-010-0533-6
关键词:
soybean
Weibin Kong, Qi Miao, Peiyong Qin, Jan Baeyens, Tianwei Tan
《化学科学与工程前沿(英文)》 2017年 第11卷 第2期 页码 166-176 doi: 10.1007/s11705-017-1616-4
关键词: vegetable oil solvent-extraction membrane separation vapor recompression environmental and economic assessment
王立智,王云龙
《中国工程科学》 2012年 第14卷 第4期 页码 88-94
为了探索高粘稀油油藏降低储层原油粘度、提高渗流能力、增加流度,进一步研究区块加密后提高采收率的新技术、新方法,2006—2008年开展了“蒸汽驱油现场先导试验”。针对油藏原油粘度高、渗透率低、粘土含量高、有效厚度小等特点,开展了室内物模实验,进行了蒸汽驱油可行性研究;应用数值模拟技术优选了注汽参数和驱替方式;开展了地层防膨预处理和井筒隔热技术研究。现场试验3个井组,累积增油1.81×104 t。通过试验研究,给出了低渗高粘稀油油藏适合蒸汽驱油技术的地质条件。
Entity and relation extraction with rule-guided dictionary as domain knowledge
《工程管理前沿(英文)》 页码 610-622 doi: 10.1007/s42524-022-0226-0
关键词: entity extraction relation extraction prior knowledge domain rule
郝世彦,王永东
《中国工程科学》 2012年 第14卷 第4期 页码 8-11
论述了延长油田长6井组的转注原因及注水前缘微地震监测。延长油田子长采油厂4237井组的注水前缘优势方向为北东东向,受到原地应力场方向影响强烈。研究表明,注采井网的布局应该同时参考原地应力场方向及原有裂缝方向。依据监测结果,油水井布置方向是正确的,应该缩短沿北北西方向的油、水井距,以提高注水见效程度。
Xu Zhang, Huanhuan Yang, Xinlei Wang, Wen Song, Zhaojie Cui
《环境科学与工程前沿(英文)》 2018年 第12卷 第4期 doi: 10.1007/s11783-018-1059-2
SFE-GC system is established for flavonols assessment. Optimal parameters of SFE-GC are evaluated and determined. Quercetin and kaempferol are detected in plant under heavy metal stress. Gene expression analysis shows consistent regularity with content of flavonols. ROS level is applied for elaborating the plant resistance status.
关键词: Flavonols Heavy metal Supercritical carbon dioxide extraction (SFE) GC Plant resistance
Feature extraction from slice data for reverse engineering
ZHANG Yingjie, LU Shangning
《机械工程前沿(英文)》 2007年 第2卷 第1期 页码 25-31 doi: 10.1007/s11465-007-0004-z
关键词: feasibility corresponding B-spline pre-determined tolerance extraction
A microextraction approach for rapid extraction and separation of Mn(II) and Co(II) using saponified
《化学科学与工程前沿(英文)》 2022年 第16卷 第6期 页码 963-972 doi: 10.1007/s11705-021-2081-7
关键词: extraction equilibrium mass transfer coefficient microextraction multicomponent extraction di-(2-ethylhexyl)phosphoric acid
《能源前沿(英文)》 2022年 第16卷 第2期 页码 321-335 doi: 10.1007/s11708-021-0741-4
关键词: biomass-fired cogeneration district heat production system absorption heat pump extraction steam cooling water low-pressure feedwater
Study of an artificial boundary condition based on the damping-solvent extraction method
Qiang XU, Jianyun CHEN, Jing LI, Mingming WANG
《结构与土木工程前沿(英文)》 2012年 第6卷 第3期 页码 281-287 doi: 10.1007/s11709-012-0167-5
关键词: damping-solvent extraction method structure-unlimited-foundation system spring-damper system artificial damping limited region finite element method
Study on the microwave-assisted extraction of polyphenols from tea
Liyun WANG, Peiyong QIN, Yan HU,
《化学科学与工程前沿(英文)》 2010年 第4卷 第3期 页码 307-313 doi: 10.1007/s11705-009-0282-6
关键词: energy consumption microwave-assisted extraction optimum condition pre-leaching concentration
标题 作者 时间 类型 操作
Cultivars and oil extraction techniques affect Cd/Pb contents and health risks in oil of rapeseed grown
期刊论文
EXTRACTION AND EVALUATION OF EDIBLE OIL FROM SCHIZOCHYTRIUM SP. USING AN AQUEOUS ENZYMATIC METHOD
期刊论文
Predicting the yield of pomegranate oil from supercritical extraction using artificial neural networks
J. Sargolzaei, A. Hedayati Moghaddam
期刊论文
Oxidation-extraction desulfurization of model oil over Zr-ZSM-5/SBA-15 and kinetic study
Chuanzhu LU,Hui FU,Huipeng LI,Hua ZHAO,Tianfeng CAI
期刊论文
Highly effective extraction of oil from soybean by pretreatment of solid-state fermentation with fungi
Xiaojuan NIU, Shuyi QIU, Yuangen WU, Jie YUAN, Yingying XU
期刊论文
Environmental and economic assessment of vegetable oil production using membrane separation and vapor
Weibin Kong, Qi Miao, Peiyong Qin, Jan Baeyens, Tianwei Tan
期刊论文
An extraction- assay system: Evaluation on flavonols in plant resistance to Pb and Cd by supercriticalextraction- gas chromatography
Xu Zhang, Huanhuan Yang, Xinlei Wang, Wen Song, Zhaojie Cui
期刊论文
A microextraction approach for rapid extraction and separation of Mn(II) and Co(II) using saponified
期刊论文
Performance evaluation of an improved biomass-fired cogeneration system simultaneously using extraction
期刊论文
Study of an artificial boundary condition based on the damping-solvent extraction method
Qiang XU, Jianyun CHEN, Jing LI, Mingming WANG
期刊论文