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| 1 | ZmMs30 Encoding a Novel GDSL Lipase Is Essential for Male Fertility and Valuable for Hybrid Breeding in Maize显示文摘Genic male sterility (GMS) is very useful for hybrid vigor utilization and hybrid seed production. Although a large number of GMS genes have been identified in plants, little is known about the roles of GDSL lipase members in anther and pollen development. Here, we report a maize GMS gene, ZmMs30, which encodes a novel type of GDSL lipase with diverged catalytic residues. Enzyme kinetics and activity assays show that ZmMs30 has lipase activity and prefers to substrates with a short carbon chain. ZmMs30 is specifically expressed in maize anthers during stages 7-9. Loss of ZmMs30 function resulted in defective anther cuticle, irregular foot layer of pollen exine, and complete male sterility. Cytological and lipidomics analyses demonstrate that ZmMs30 is crucial for the aliphatic metabolic pathway required for pollen exine formation and anther cuticle development. Furthermore, we found that male sterility caused by loss of ZmMs30 function was stable in various inbred lines with different genetic background, and that it didn't show any negative effect on maize heterosis and production, suggesting that ZmMs30 is valuable for crossbreeding and hybrid seed production. We then developed a new multi-control sterility system using ZmMs30 and its mutant line, and demonstrated it is feasible for generating desirable GMS lines and valu. able for hybrid maize seed production. Taken together, our study sheds new light on the mechanisms of anther and pollen development, and provides a valuable male-sterility system for hybrid breeding maize. | Xueli An Zhenying Dong Youhui Tian Ke Xie Suowei Wu Taotao Zhu Danfeng Zhang Van Zhou Canfang Niu Biao Ma Quancan Hou Jianxi Bao Simiao Zhang Ziwen Li Yanbo Wang Tingwei Yan Xiaojing Sun Yuwen Zhang Jinping Li Xiangyuan Wan | 2019 | Molecular Plant2019，12，3： | 15 |
| 2 | Beneficial Effects of Oolong Tea Consumption on Diet-induced Overweight and Obese Subjects显示文摘Objective:To determine the anti-obesity effects of oolong tea on diet-induced overweight or obesity.Methods:A total of 8 g of oolong tea a day for 6 weeks was ingested by 102 diet-induced overweight or obese subjects.The body fat level of the subjects was determined at the same time by taking body weight, height and waist measurements.The thickness of the subcutaneous fat layer was also determined on the abdomen 3 cm to the right of the navel by the ultrasonic echo method.On the other hand,effects of ool... | 何蓉蓉 陈玲 林炳辉 松井阳吉 姚新生 栗原博 | 2009 | Chinese Journal of Integrative Medicine2009，15，1： | 13 |
| 3 | Is the pancreas affected in patients with septic shock?——a prospective study显示文摘BACKGROUND:Hyperamylasemia can be observed anecdotally during the course of severe sepsis or septic shock.This study aimed to investigate the possibility of pancreatic involvement in patients with septic shock using serum pancreatic enzyme determinations and imaging techniques in 21 consecutive patients with septic shock and 21 healthy subjects as controls. METHODS:The serum activity of pancreatic amylase and lipase was assayed initially in all subjects and 24 and 48 hours after the initial observation in the 21 patients with septic shock All patients also underwent radiological examination to detect pancreatic abnormalities. RESULTS:The serum activity of pancreatic amylase was significantly higher in the 21 patients with septic shock than in the 21 control subjects during the study period while the serum activity of lipase was similar to that of the control subjects.Amylase and lipase serum activity did not significantly changed throughout the study period in the 21 patients with septic shock.None of the patients with pancreatic hyperenzymemia had clinical signs or morphological alterations compatible with acute pancreatitis CONCLUSION:The presence of pancreatic hyperenzymemia in septic shock patients is not a biochemical manifestation of acute pancreatic damage,and the management of these patients should be dependent on the clinical situation and not merely the biochemical results. | Raffaele Pezzilli Alessandra Barassi Andrea Imbrogno Dario Fabbri Antonina Pigna Antonio M.Morselli-Labate Roberto Corinaldesi Gianvico Melzi d'Eril | 2011 | Hepatobiliary & Pancreatic Diseases International2011，10，2： | 11 |
| 4 | Pancreatic injury in patients with septic shock: A literature review显示文摘Sepsis and septic shock are life threatening condition associated with high mortality rate in critically-ill patients. This high mortality is mainly related to the inadequacy between oxygen delivery and cellular demand leading to the onset of multiorgan dysfunction. Whether this multiorgan failure affect the pancreas is not fully investigated. In fact, pancreatic injury may occur because of ischemia, overwhelming inflammatory response, oxidative stress, cellular apoptosis and/or metabolic derangement. Increased serum amylase and/or lipase levels are common in patients with septic shock. However, imaging test rarely reveal significant pancreatic damage. Whether pancreatic dysfunction does affect the prognosis of patients with septic shock or not is still a matter of debate. In fact, only few studies with limited sample size assessed the clinical relevance of the pancreatic injury in this group of patients. In this review, we aimed to describe the epidemiology and the physiopathology of pancreatic injury in septic shock patients, to clarify whether it requires specific management and to assess its prognostic value. Our main finding is that pancreatic injury does not significantly affect the outcome in septic shock patients. Hence, increased serum pancreatic enzymes without clinical features of acute pancreatitis do not require further imaging investigations and specific therapeutic intervention. | Anis Chaari Karim Abdel Hakim Kamel Bousselmi Mahmoud Etman Mohamed El Bahr Ahmed El Saka Eman Hamza Mohamed Ismail Elsayed Mahmoud Khalil Vipin Kauts William Francis Casey | 2016 | World Journal of Gastrointestinal Oncology2016，8，7： | 8 |
| 5 | Pomegranate leaf attenuates lipid absorption in the small intestine in hyperlipidemic mice by inhibiting lipase activity显示文摘Pomegranate leaf(PGL)has a definite role in regulating lipid metabolism.However,pharmacokinetic results show the main active ingredient,ellagic acid,in PGL has lower oral bioavailability,suggesting that the lipid-lowering effect of PGL may act through inhibiting lipid absorption in the small intestine.Our results demonstrated that pomegranate leaf and its main active ingredients(i.e.,ellagic acid,gallic acid,pyrogallic acid and tannic acid)were capable of inhibiting pancreatic lipase activity in vitro.In computational molecular docking,the four ingredients had good affinity for pancreatic lipase.Acute lipid overload experiments showed that a large dosage of PGL significantly reduced serum total cholesterol(TG)and triglycerides(TC)levels in addition to inhibiting intestinal lipase activity,which demonstrated that PGL could inhibit lipase activity and reduce the absorption of lipids.We also found that PGL could reverse the reduced tight-junction protein expression due to intestinal lipid overload,promote Occludin and Claudin4 expression in the small intestine,and enhance the intestinal mucosal barrier.In conclusion,we demonstrated that PGL can inhibit lipid absorption and reduce blood TG and TC by targeting pancreatic lipase,promoting tight-junction protein expression and thereby preventing intestinal mucosa damage from an overload of lipids in the intestine. | YU Xuan WANG Xin-Pei LEI Fan JIANG Jing-Fei LI Jun XING Dong-Mang DU Li-Jun | 2017 | Chinese Journal of Natural Medicines2017，15，10： | 7 |
| 6 | 有机相脂肪酶催化合成脂质体修饰物胆固醇癸二酸单烯酯显示文摘目的在非水相中利用酶法合成胆固醇癸二酸单烯酯,并对其最优合成工艺条件进行研究。方法利用TLC、MS和NMR法对合成产物进行结构鉴定;通过正交试验对合成处方工艺进行优化。结果最佳反应条件为胆固醇与癸二酸二乙烯酯物质的量之比为1∶6,Candida rugosa Lipase 10 mg/mL,异辛烷5 mL,温度35℃,反应时间24 h。结论该条件下酯化率可达95%以上。 | 聂华 郑品劲 罗利华 程怡 | 2013 | 中草药2013，44，23： | 7 |
| 7 | 铜绿假单胞菌脂肪酶Lipase基因的原核表达(英文)显示文摘[Objective] The aim of this study was to investigate the prokaryotic expression of pseudomonas aeruginosa Lipase gene.[Method]Lipase gene was amplified by PCR from the genome DNA of pseudomonas aeruginosa,and its nucleotide sequence was determined.The prokaryotic expression vector of Lipase gene was constructed by the gene recombination technique.The protein expression was induced for 4 hours by IPTG with the final concentration of 1.0 mmol/L,and then SDS-PAGE electrophoresis was analyzed.[Result]The sequence of mature peptides in Lipase gene cloned from pseudomonas aeruginosa had a 99.36% homology with that of pseudomonas aeruginosa lipase submitted in NCBI,so the prokaryotic expression vector of Lipase gene pET32a-Lip was successfully constructed.Furthermore,the results of SDS-PAGE electrophoresis showed that the target gene was expressed highly and effectively.[Conclusion]The cloned pseudomonas aeruginosa lipase with its signal peptide could be normally expressed in E.coli and also used for further study. | 张煜星 武寒雪 祝建波 刘焕 周鹏 | 2008 | Agricultural Science & Technology2008，9，5： | 7 |
| 8 | 海藻糖对脂肪酶的保护机理及酶失活动力学显示文摘采用自制的磁性固定化酶(MIE),考察了高温下二糖类对酶的保护作用。结果显示:海藻糖对悬浮于水溶液中的MIE没有保护作用;而在高温干燥后,对酶的保护作用效果依次为:海藻糖>乳糖>蔗糖,支持‘玻璃态学说’;此外,采用两步失活动力学模型能够较好的拟合酶的失活过程,并且得到酶的失活速率常数k和半衰期t1/2,加入海藻糖和乳糖之后,MIE的半衰期分别增长了31和23倍。 | 张东浩 白姝 孙彦 | 2006 | 生物加工过程2006，4，1： | 6 |
| 9 | Impact of serum levels of lipoprotein lipase, hepatic lipase, and endothelial lipase on the progression of coronary artery disease显示文摘Purpose: The purpose of this study was to investigate the relationship between serum levels of lipoprotein lipase(LPL), hepatic lipase(HL), and endothelial lipase(EL) and the progression of coronary artery disease(CAD).Materials and methods: According to the inclusion criteria, exclusion criteria, diagnostic criteria, angiography results, and the random matching scheme, the enrolled patients were divided into the following two groups: the progression-free group(n ? 47) and the progression group(n ? 15). The baseline characteristics and various biochemical parameters were obtained from the medical records and medical history. Serum LPL, HL, and EL levels were detected by ELISA. The correlation between serum LPL, HL, and EL levels and coronary lesions was statistically analyzed with SPSS software.Results: Significant differences were observed in serum levels of HL and EL between the progression-free group and the progression group(HL, 75.5 ? 39.2 ng/mL vs. 125.1 ? 42.1 ng/mL, P < 0.05;EL, 139.2 ? 59.6 pg/mL vs.175.1 ? 40.1 pg/mL, P < 0.05), while the difference in the LPL level was not significant(P > 0.05). Receiver operating characteristic curve(ROC) analysis showed that the area under the curve(AUC) values of LPL, HL, and EL were 0.506(95% CI: 0.369–0.642, P ? 0.9470), 0.792(95% CI: 0.664–0.888, P < 0.0001), and 0.693(95% CI:0.553–0.811, P ? 0.0095), respectively. Additionally, logistic regression analysis showed that the serum level of HL was an independent risk factor for coronary artery lesion progression.Conclusion: Serum levels of EL and HL, but not the serum level of LPL, were positively correlated with the progression of CAD. The serum level of HL was an independent risk factor for the progression of CAD, while the serum level of EL or LPL was not an independent risk factor for the progression of CAD. For the diagnosis of CAD progression, the serum level of HL was better than the serum level of EL or LPL. | Hui Han Daopeng Dai Wencheng Wang Jinzhou Zhu Zhengbin Zhu Lin Lu Ruiyan Zhang | 2019 | Journal of Interventional Medicine2019，2，1： | 6 |
| 10 | Lipase and pancreatic amylase activities in diagnosis of acute pancreatitis in patients with hyperamylasemia显示文摘BACKGROUND: Measurement of total serum amylase (AMY) is the most widely used biochemical test for the diagnosis of acute pancreatitis, but it is commonly considered a nonspecific marker. To improve the biochemical diagnosis of acute pancreatitis, lipase ( LIP ) and pancreatic amylase (PAMY) have been tested in recent years. The present study was designed to evaluate whether serum LIP and pancreatic PAMY tests could replace total amylase test to improve diagnostic efficiency in the evaluation of acute pancreatitis in patients with hyperamylasemia. METHODS: LIP and PAMY values were determined in serum samples from 92 patients with hyperamylasemia. Reference values for each enzyme were derived from serum samples of 147 healthy subjects. The activities of LIP and PAMY in patients with various diseases were shown directly by the boxplot graph. The diagnostic accuracy of LIP and PAMY was defined as the area under the receiver operating characteristic (ROC) curve. Their sensitivity and specificity in detecting acute pancreatitis at varying cutoff points were shown by the curve, and the best cutoff value for each enzyme was shown by the modified ROC curve. The diagnostic values of LIP, PAMY and LIP + AMY with each upper limit of reference range (ULR) were compared with the corresponding best cutoff values. RESULTS: The references values of LIP and PAMY were 12.2-47.6 U/L and 28-95 U/L, respectively. These values in patients with acute pancreatitis were higher than those patients with other diseases. The areas under the ROC curve ( AUC) of LIP and PAMY were 0. 799 and 0. 792, respectively, With the best diagnostic cutoff point of maximum (sensitivity + specificity) -100%, we obtained values of 97.9 U/L(LIP97.9 =2. 06 × ULR) for LIP and 209 U/L (PAMY209 =2.20 ×ULR) for PAMY. The best cutoff values for LIP, PAMY and LIP +AMY demonstrated the specificity, positive predictive value, and diagnostic efficiency higher than the corresponding ULRs. CONCLUSIONS: Serum LIP and PAMY are specific for the pancreas and might replace total amylase for the diagnosis of acute pancreatitis in hyperamylasemia patients. LIP97.9 is more efficient than PAMY209 in the diagnosis of acute pancreatitis. A combined test of both enzymes is not superior to single test of either enzyme in diagnostic accuracy. | Rong-Wei Yang, Zhe-Xin Shao, Yi-Yi Chen, Zhou Yin and Wen-Juan Wang Clinical Laboratory, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China and Clinical Laboratory, Zhejiang Xinhua Hospital, Hangzhou 310003 , China | 2005 | Hepatobiliary & Pancreatic Diseases International2005，4，4： | 6 |
| 11 | Study on low-temperature lipase of psychrophilic bacterium 2-5-10-1 isolated from deep sea of Southern Ocean显示文摘A strain of psychrophilic bacterium, 2-5-10-1, which produces low-temperature lipase, is isolated from the deep sea of Prydz Bay in Southern Ocean. The highest lipase secretion of this strain is observed at 5 ℃ and this temperature is also for optimal growth. Tween 80 and olive oil enhance secretion of lipase. The optimal temperature and pH for lipase activity are 35 ℃ and 7.5 ℃ respectively. At 0℃, the lipase still has 37% relative enzyme activity. The lipase shows high thermolability, more than 50% activity lost after incubation at 60 ℃ for 15 min. EDTA has no effect on lipase activity, indicating the lipase activity is independent of divalent cation. In contrast, the lipase activity is inhibited drastically by Cu 2+ and Zn 2+. | Lin Xuezheng1,Yang Xiuxia2,Bian Ji1,Huang Xiaohang1 1. First Institute of Oceanography,State Oceanic Administration,Qingdao 266061,China 2. Fishery College, Ocean University of China,Qingdao 266003,China | 2003 | Acta Oceanologica Sinica2003，22，4： | 5 |
| 12 | Pancreatic enzymes and abdominal adipose tissue distribution in new-onset prediabetes/diabetes after acute pancreatitis显示文摘BACKGROUND New-onset prediabetes/diabetes after acute pancreatitis(NODAP)is the most common sequela of pancreatitis,and it differs from type 2 prediabetes/diabetes mellitus(T2DM).AIM To study the associations between circulating levels of pancreatic amylase,pancreatic lipase,chymotrypsin and fat phenotypes in NODAP,T2DM,and health.METHODS Individuals with NODAP(n=30),T2DM(n=30),and sex-matched healthy individuals(n=30)were included.Five fat phenotypes(intra-pancreatic fat,liver fat,skeletal muscle fat,visceral fat,and subcutaneous fat)were determined using the same magnetic resonance imaging protocol and scanner magnet strength for all participants.One-way analysis of covariance,linear regression analysis,and relative importance analysis were conducted.RESULTS Intra-pancreatic fat deposition(IPFD)was higher in NODAP(9.4%±1.8%)and T2DM(9.8%±1.1%)compared with healthy controls(7.8%±1.9%)after adjusting for covariates(P=0.003).Similar findings were observed in regards to visceral fat volume(P=0.005),but not subcutaneous fat volume,liver fat,or skeletal muscle fat.Both IPFD(β=-2.201,P=0.023)and visceral fat volume(β=-0.004,P=0.028)were significantly associated with circulating levels of pancreatic amylase in NODAP,but not in T2DM or healthy individuals.Of the five fat phenotypes,IPFD explained the highest amount of variance in pancreatic amylase concentration(R2=15.3%out of 41.2%).None of the phenotypes contributed meaningfully to the variance in pancreatic lipase or chymotrypsin.CONCLUSION Both NODAP and T2DM are characterized by increased IPFD and visceral fat volume.However,only NODAP is characterized by significant inverse associations between the two fat phenotypes and pancreatic amylase. | Juyeon Ko Loren Skudder-Hill Jaelim Cho Sakina H Bharmal Maxim S Petrov | 2021 | World Journal of Gastroenterology2021，27，23： | 5 |
| 13 | Correlation analysis between the chemical contents and bioactivity for the quality control of Alismatis Rhizoma显示文摘In order to clarify regions of production and to discriminate processing methods, quantitative and qualitative analyses for saccharides and terpenes in 35 batches of Alismatis Rhizoma were performed.Methodologies included HPLC–PDA, HPLC–VWD and UHPLC–MSn, combined with principal component analysis(PCA) and partial least squares regression techniques(PLSR). The inhibitory effects of triterpenes and Alismatis Rhizoma extracts on lipase activity were evaluated in vitro. PLSR analysis revealed significant positive correlations(R2= 0.5795) between the contents of triterpenes 10, 14, 15, 18 and 22 and the inhibitory effects of Alismatis Rhizoma. The present study establishes an effective method for simultaneous determination of multiple components, and identifies key bioactive triterpenes. These results can be used for systematic and novel analytical strategies for the quality control of Alismatis Rhizoma production. | Xiaoxv Gao Chengpeng Sun Zhenglong Yu Jian Cang Xiangge Tian Xiaokui Huo Lei Feng Xinguang Liu Chao Wang Baojing Zhang Xiaochi Ma | 2018 | Acta Pharmaceutica Sinica B2018，8，2： | 4 |
| 14 | CALB脂肪酶在毕赤酵母中的组成型表达及纯化显示文摘根据南极假丝酵母脂肪酶calb的成熟多肽序列,人工合成了由毕赤酵母(Pichia pastoris)偏爱密码子组成的calb基因序列(仅成熟肽)。将该基因克隆至穿梭质粒pGAPZαΑ中,获得的重组质粒pGAPZαA-calb经线性化后转入毕赤氏酵母GS115菌株,构建成组成型表达CALB的酵母工程菌株。酵母转化子在YPD培养基上传代10次后,其外源基因未丢失。经摇瓶发酵4天后,CALB水解活力为14.5U/ml。经脱盐和阴离子交换两步纯化后,其纯度达到了95%以上,目的蛋白的含量达到了220mg/L。 | 朱艳飞 杨博 | 2009 | 中国生物工程杂志2009，29，10： | 4 |
| 15 | 血管生成素样蛋白-4在动脉粥样硬化过程中的双重作用显示文摘血管生成素样蛋白(angiopoietin-like protein,ANGPTL)是分泌性糖蛋白,与血管生成素(angiopoietin)结构同源;其参与血管生成调控,以及糖脂代谢调控。血管生成素样蛋白-4(ANGPTL-4),因具有抑制血管生成效应、以及对脂蛋白酯酶(lipoprotein lipase,LPL)的抑制效应,而成为近年来医学界的研究热点。最近,耶鲁大学Carlos F.Hernando团队揭示:ANGPTL-4密切参与动脉粥样硬化形成过程;尤为让人惊奇的是,该分子在动脉粥样硬化形成过程中,发挥"双重作用"。 | 陈重九 范思邈 郑瑞茂 | 2016 | 生理科学进展2016，47，5： | 4 |
| 16 | Degradation of poly(butylene adipate-co-terephthalate) by Stenotrophomonas sp. YCJ1 isolated from farmland soil显示文摘In recent years, poly(butylene adipate-co-terephthalate)(PBAT) has been widely used. However, PBAT-degrading bacteria have rarely been reported. PBAT-degrading bacteria were isolated from farmland soil and identified. The effects of growth factors on the degradation of PBAT and the lipase activity of PBAT-degrading bacteria were assessed. The degradation mechanism was analyzed using scanning electron microscopy, attenuated total reflection Fourier transform infrared spectroscopy, proton nuclear magnetic resonance, Xray diffraction, and liquid chromatography-mass spectrometry. The results showed that Stenotrophomonas sp. YCJ1 had a significant degrading effect on PBAT. Under certain conditions, the strain could secrete 10.53 U/m L of lipase activity and degrade 10.14 wt.% of PBAT films. The strain secreted lipase to catalyze the degradation of the ester bonds in PBAT, resulting in the production of degradation products such as terephthalic acid, 1,4-butanediol, and adipic acid. Furthermore, the degradation products could participate in the metabolism of YCJ1 as carbon sources to facilitate complete degradation of PBAT, indicating that the strain has potential value for the bioremediation of PBAT in the environment. | Hao Jia Min Zhang Yunxuan Weng Yao Zhao Chengtao Li Aqsa Kanwal | 2021 | Journal of Environmental Sciences2021，33，5： | 4 |
| 17 | Usefulness of serum lipase for early diagnosis of post-endoscopic retrograde cholangiopancreatography pancreatitis显示文摘BACKGROUND Post-endoscopic retrograde cholangiopancreatography(ERCP)pancreatitis(PEP)is new onset acute pancreatitis after ERCP.This complication is sometimes fatal.As such,PEP should be diagnosed early so that therapeutic interventions can be carried out.Serum lipase(s-Lip)is useful for diagnosing acute pancreatitis.However,its usefulness for diagnosing PEP has not been sufficiently investigated.AIM This study aimed to retrospectively examine the usefulness of s-Lip for the early diagnosis of PEP.METHODS We retrospectively examined 4192 patients who underwent ERCP at our two hospitals over the last 5 years.The primary outcomes were a comparison of the areas under the receiver operating characteristic(ROC)curves(AUCs)of s-Lip and serum amylase(s-Amy),s-Lip and s-Amy cutoff values based on the presence or absence of PEP in the early stage after ERCP via ROC curves,and the diagnostic properties[sensitivities,specificities,positive predictive values(PPV),and negative predictive value(NPV)]of these cutoff values for PEP diagnosis.RESULTS Based on the eligibility and exclusion criteria,804 cases were registered.Over the entire course,PEP occurred in 78 patients(9.7%).It occurred in the early stage after ERCP in 40 patients(51.3%)and in the late stage after ERCP in 38 patients(48.7%).The AUCs were 0.908 for s-Lip[95%confidence interval(CI):0.880-0.940,P<0.001]and 0.880 for s-Amy(95%CI:0.846-0.915,P<0.001),indicating both are useful for early diagnosis.By comparing the AUCs,s-Lip was found to be significantly more useful for the early diagnosis of PEP than s-Amy(P=0.023).The optimal cutoff values calculated from the ROC curves were 342 U/L for s-Lip(sensitivity,0.859;specificity,0.867;PPV,0.405;NPV,0.981)and 171 U/L for s-Amy(sensitivity,0.859;specificity,0.763;PPV,0.277;NPV,0.979).CONCLUSION S-Lip was significantly more useful for the early diagnosis of PEP.Measuring s-Lip after ERCP could help diagnose PEP earlier;hence,therapeutic interventions can be provided earlier. | Masayoshi Tadehara Kosuke Okuwaki Hiroshi Imaizumi Mitsuhiro Kida Tomohisa Iwai Hiroshi Yamauchi Toru Kaneko Rikiya Hasegawa Eiji Miyata Yusuke Kawaguchi Hironori Masutani Wasaburo Koizumi | 2019 | World Journal of Gastrointestinal Endoscopy2019，11，9： | 3 |
| 18 | The lipase monolayer film self-assembly on the negatively charged poly(ethylene terephthalate) substrate显示文摘The PET-CO2-film was prepared and the lipase was assembled on the surface of the PET-CO2- substrate The structure at the surface and activity of lipase/PET monolayer were studied by ATR-FTIR and AFM, and other methods. | Lin, XF He, L Xu, LH Lu, DS Chen, ZC | 2000 | Chinese Chemical Letters2000，11，3： | 3 |
| 19 | Corrosion Inhibition by Co-Immobilized Lysozyme and Lipase in Circulating Cooling Water System显示文摘The corrosion inhibition performance of co-immobilized lysozyme and lipase was investigated in a recirculating cooling water system. Four methods were carried out in co-immobilization, and the operating parameters were optimized by using the respond surface methodology(RSM). The corrosion inhibition performance of co-immobilized lipase and lysozyme was evaluated by weight loss measurements and electrochemical measurements. The results revealed that the optimal co-immobilization method should be the sequential immobilization of lysozyme and then lipase. The inhibition efficiency was 86.10% under the optimal co-immobilized conditions. Electrochemical data showed that co-immobilized lysozyme and lipase was a mixed-type inhibitor and the corrosion inhibition efficiency was 81%. | Liu Fang Lü Yucui Jiang Guofei Chen Xiaorui Sun Juan Zhao Chaocheng | 2017 | China Petroleum Processing & Petrochemical Technology2017，19，2： | 3 |
| 20 | Enhanced fat degradation following the addition of a Pseudomonas species to a bioaugmentation product used in grease traps显示文摘The presence of fats, oils and greases(FOGs) in wastewater can lead to many problems including blockages. Investigation of a bioaugmentation product, consisting of Bacillus spp., to degrade butter(1%, W/V) and olive oil(1%, V/V) was performed in aerobic batch cultures for 13-day incubation. Gravimetric analysis of the remaining substrates showed slowly degradation of the oil after a 2-day lag, but no degradation of the butter. Addition of a Pseudomonas putida strain CP1 to the Bacillus spp. population promoted rapidly degradation of both fats after7 days of incubation. High fat accumulation revealed the potential use of the new bacterial mixture for production of added-value compounds. Lipase production only by the Bacillus spp.along with the analysis of the remaining lipids with thin layer chromatography and gas chromatography, suggested that the Bacillus spp. mainly only hydrolyzed the fat. The breakdown products were metabolized by the Pseudomonas putida CP1 performing preferential utilization of unsaturated fatty acids. Investigation of population dynamics using selective plating and a labeled Pseudomonas putida CP1::Tn7-gfp showed domination of the latter. The new mixture performed a successful cooperation with good potential for FOG treatment and an aggregative response desirable to fat degradation in grease traps. | Markella Tzirita Seraphim Papanikolaou Bríd Quilty | 2019 | Journal of Environmental Sciences2019，31，3： | 2 |
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