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刘平怀

材料与化工学院

职称:教授

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作者:杨勋,郝宗娣,张森,刘平怀 (海南大学材料与化工学院,海南大学热带作物种质资源保护与开发利用教育部重点实验室)

出处:南方水产科学 2013

关键词:若夫小球藻;营养方式;氮源;磷;pH;总脂

摘要:以若夫小球藻(Chlorella zofingiensis)为研究对象,考察了不同的营养方式(自养、混养、异养),不同的氮源、磷(P)质量浓度和pH对其生长和油脂积累的影响。结果表明,若夫小球藻在混合营养方式下藻体质量浓度及油脂质量分数明显高于自养与异养方式,以蔗糖为碳源的混合营养方式下若夫小球藻总 ...

被引情况:超星被引 19 次

作者:汪春牛,韩星,梁振益,王薇,刘平怀 (海南大学材料与化工学院;热带作物种质资源保护与开发利用教育部重点实验室)

出处:精细化工 2012

关键词:微波辅助提取;超临界CO2提取;琼榄果实油;化学成分;中药现代化技术

摘要:以南药琼榄果实为原料,采用微波辅助提取法(MAE)和超临界CO2提取法(SFE-CO2)提取琼榄果实油,并用气-质联用仪(GC-MS)比较了琼榄油经碱催化和BF3-MeOH催化甲酯化后的脂肪酸成分及其相对质量分数.结果表明,两种方法所提取琼榄油的脂肪酸成分大致相同.GC-MS分析MAE(碱催化法)、 ...

作者:Li, Q.;Wu, J.;Huang, L.;Gao, J.;Zhou, H.;Shi, Y.;Pan, Q.;Zhang, G.;Du, Y.;Liang, W. (a Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, China; b Institute of High Performance Computing ASTAR, Singapore, 138632, Singapore; c College of Materials and Chemical Engineering, Hainan University, Haikou, Hainan, 570228, China; d College of Physics and Energy, Shenzhen University, Shenzhen, 518060, China)

出处:Journal of Materials Chemistry A 2018

摘要:Novel sensing materials that combine high sensitivity and selectivity as well as proper working temperature are essential for advanced gas detection a ...

作者:Li, J.;Ni, J.;Shi, X.;Xu, X.;Liu, Y.;Li, D.;Chen, Z. (a School of Automotive, Tongji University, Shanghai, 201804, China; b Colleague of Mechanical and Electrical Engineering, Hainan University, Danzhou, 571737, China)

出处:Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering 2017

关键词:Bearings;Floating ring bearing;Heat transfer;Lubrication;Models;Ring speed ratio;Structural parameters;Temperature

摘要:Turbochargers are widely used in internal combustion engines. The floating ring bearing is the most important part in the turbocharger, which is compo ...

作者:汪春牛,时杰,葛思思,刘洋洋,刘平怀 (海南大学材料与化工学院海南优势资源化工材料应用技术教育部重点实验室,海南海口570228;海南省药物研究所,海南海口570311)

出处:海洋科学 2012

关键词:卡拉胶;琼胶;凝胶强度;提取工艺;碱处理工艺;麒麟菜;漂白液;漂白工艺;江蓠藻;硫酸基

摘要:卡拉胶(carrageenan)与琼胶(agar)均属红藻多糖,是构成某些红藻细胞壁的主要成分。卡拉胶多从麒麟菜(Euchenma)、角叉菜(Chondrus)、沙菜(Hypneaceae)中提取获得,琼胶从江蓠(Gracilaria)等海藻中提取获得。卡拉胶与琼胶均具有良好的胶凝性,由于这种特性使 ...

被引情况:超星被引 5 次

作者:Li, J (Li Juan);Wu, H (Wu Hao);Chen, YJ (Chen Yong-Jun);Xu, SM (Xu Sheng-Ming) (;[ 1 ] Tsinghua Univ, Inst Nucl & New Energy Technol, Beijing 100084, Peoples R China [ 2 ] Hainan Univ, Coll Mat & Chem Engn, Haikou 570228, Peoples R China [ 3 ] Guangxi Univ, Coll Chem & Chem Engn, Nanning 530004, Peoples R China [ 4 ] Tsinghua Univ, Beijing Natl Ctr Electron Microscopy, Key Lab Adv Mat, Minist Educ China, Beijing 100084, Peoples R China [ 5 ] Tsinghua Univ, Sch Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China)

出处:Journal of Inorganic Materials 2014

关键词:boron nitride nanotubes;oxygen gas-assisted;vapor-liquid-solid growth model

摘要:Wool-like products were fabricated on the stainless-steel substrates by directly heating amorphous B powder at high temperature (1300°C) at 50 mL/min ...

作者:刘洋洋,梁振益,刘平怀 (海南大学材料与化工学院)

出处:时珍国医国药杂志 2009

关键词:催吐萝芙木;水溶性生物碱;提取工艺;正交实验

摘要:目的优选催吐萝芙木水溶性生物碱的提取工艺。方法采用L9(34)正交实验,研究溶剂用量、提取时间、提取溶剂的pH条件3个因素对催吐萝芙木醇提工艺的影响,以提取物中的水溶性生物碱为指标,采用SAS 8.0统计软件进行方差分析,得到最佳提取工艺。结果催吐萝芙木的最佳浸提工艺为用10倍量95%的工业酒精在p ...

被引情况:超星被引 5 次

作者:汪春牛,刘平怀,梁振益,陈德力,许琼情,葛思思 (海南大学材料与化工学院热带作物种质资源保护与开发利用教育部重点实验室)

出处:精细化工 2011

关键词:琼榄果实油;提取工艺;气质联用;脂肪酸;中药现代化技术

摘要:比较了索氏提取法、超声提取法、加速溶剂萃取法对南药琼榄果实油的提取率.通过正交实验优化了超声提取法的工艺条件,气质联用(GC-MS)法测定了3种方法所提油脂的脂肪酸的成分及相对质量分数.优化后的最佳工艺条件为:每1 g琼榄果实粉溶于9 mL石油醚中(即料液比为1∶9,下同),超声时间10 min,超 ...

被引情况:超星被引 10 次

作者:刘平怀,时杰,沈世军 (海南大学材料与化工学院海南优势资源化工材料应用技术教育部重点实验室)

出处:精细化工 2011

关键词:亚临界流体萃取;虾蟹壳;虾青素;食品与饲料用化学品

摘要:考察了以废弃虾蟹壳为原料,亚临界流体萃取法提取虾青素的工艺。通过单因素及正交实验优化了提取条件,提取工艺为:以二氯甲烷为溶剂,100℃,9.31 1 1.72 MPa,静态提取时间15 min,循环2次,提取率为0.037 3%。与传统的有机溶剂浸提法提取结果比较表明,亚临界流体萃取的提取率高出33 ...

被引情况:超星被引 11 次

作者:Li, W (Li, Wen);Li, XP (Li, Xue-ping);Shao, YZ (Shao, Yuan-zhi);Xie, JH (Xie, Jiang-hui);Chen, WX (Chen, Wei-xin);Jin, ZQ (Jin, Zhi-qiang) (1.Haikou Experimental Station,Chinese Academy of Tropical Agricultural Sciences,Haikou,China;2.Key Laboratory of Protection and Development in Tropical Plant Resources of Educational Ministry,Haikou,China;3.College of Horticulture and Landscape,Hainan University,Haikou,China;4.Key Laboratory of Postharvest Physiology and Freshkeeping Technology of Tropical Horticultural Products of Hainan province,Zhanjiang,China;5.College of Horticulture, South China Agricultural University,Guangzhou,China;6.Guangdong Provincial Key Laboratory for Postharvest Science and Technology of Fruits and Vegetables,Guangzhou,China;7.College of Food Science, Hainan University,Haikou,China;8.South Subtropical Crops Research Institute,Chinese Academy of Tropical Agricultural Sciences,Zhanjiang,China;9.Guangdong Provincial Key Laboratory of Postharvest Physiology and Technology of Fruits and Vegetables of Guangdong province,Guangzhou,China)

出处:Food Science and Biotechnology 2011

关键词:banana fruit;SPS mRNA expression;real-time reverse transcriptase-PCR;quantification;ripening

摘要:Real-time reverse transcriptase (RT)-PCR using SYBR GreenI was applied to quantify sucrose phosphate synthase (SPS) mRNA expression at different stora ...