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为提升粮食加工副产物玉米胚芽的综合利用价值，以玉米胚芽为原料，以出油率为指标，通过单因素试验和正交试验对玉米油的酶法辅助低温压榨法制取工艺条件进行优化，并对最优条件下制取的玉米油基本理化指标进行分析。结果表明：酶法辅助低温压榨法制取玉米油的最优工艺条件为酶解水分含量12%、纤维素酶添加量0.5%、碱性蛋白酶添加量1.0%、酶解温度45 ℃、酶解时间6 h、压榨温度60 ℃、压榨压力50 MPa、压榨时间60 min，在此条件下玉米胚芽的出油率为4189%，较常规低温压榨的出油率（39.68%)高；所制得的玉米油澄清、透明，呈棕红色，理化指标基本符合三级成品玉米油国家标准。综上，酶法辅助低温压榨工艺可获得品质良好的玉米油，同时出油率较常规低温压榨法有所提高。In order to improve the comprehensive utilization value of corn germ as a by-product of grain processing, the extraction conditions of corn oil by enzyme-assisted cold-pressing method were optimized by single factor test and orthogonal test with corn germ as raw material and oil yield as index, and the basic physicochemical indexes of corn oil prepared under the optimal conditions were analyzed. The results showed that the optimal conditions for extracting corn oil by enzyme-assisted cold-pressing method were as follows: enzymatic hydrolysis water content 12%, cellulase dosage 0.5%, alkaline protease dosage 10%, enzymatic hydrolysis temperature 45 ℃,enzymatic hydrolysis time 6 h, pressing temperature 60 ℃, pressing pressure 50 MPa, and pressing time 60 min. Under these conditions, the oil yield was 41.89%, which was higher than that of conventional cold-pressing method (39.68%). The corn oil produced was clear, transparent and brown-red, and its physicochemical indexes basically met the national standard of third grade corn oil. In general, the enzyme-assisted cold-pressing method can obtain corn oil with good quality, and its oil yield is higher than that of conventional cold-pressing method.

Copyright of Journal of Southeast University / Dongnan Daxue Xuebao is the property of Journal of Southeast University Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Computer Engineering & Science / Jisuanji Gongcheng yu Kexue is the property of Computer Engineering & Science and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Modern Food Science & Technology is the property of Editorial Office of Modern Food Science & Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Excessive phosphorus in water will seriously affect the growth of animals and plants・ How to effectively remove excessive phosphate in water is very important. Adsorption method is widely concerned because of its advantages of low cost and easy operation. Biochar is used as adsorbent because of its low cost and high stability・ Metal modification is an effective method to improve the adsorption of phosphate in water by biochar・ Based on the research results of phosphate adsorption by metal modified biochar at home and abroad in recent years, the influencing factors and adsorption mechanism of phosphate adsorption by metal modified biochar were summarized・ Provide theoretical basis and scientific basis for future research. [ABSTRACT FROM AUTHOR]

为了解东北虎豹国家公园野生动物大肠埃希菌毒力及耐药性特征，采集东北虎等野生动物粪便样品进行大肠埃希菌分离鉴定。测定生化指标和耐药表型、ERIC指纹图谱、系统进化分群，检测毒力基因及耐药基因。结果分离获得大肠埃希菌共40株，分属为35个ERIC指纹谱系，系统进化分群B2群（6/40）和D群（15/40）共占525%。25%（10/40）分离株检测到EAST1毒力基因。20%（8/40）分离株对四环素耐药，最小抑菌浓度32—128 μg/mL。携带四环素耐药基因型为tetA和tetB。研究结果有助于进一步了解陆生野生动物大肠埃希菌携带毒力及耐药本底，为建立野生动物和人类耐药病原菌之间的流行病学关联提供数据支持。

Copyright of Journal of Computer-Aided Design & Computer Graphics / Jisuanji Fuzhu Sheji Yu Tuxingxue Xuebao is the property of Gai Kan Bian Wei Hui and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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Aiming at improving the working efficiency and resource utilization of the polling control system, this paper proposed a limited ( K = 2 ) polling control system for the site dormant activity state, and studied the mathematical model of the system by using the probabilistic parent function and the embedded Markov chain method. The simulation results show that the theoretical value is approximately equal to the experimental value, which indicates that the analysis method is correct and reasonable. Based on the limited ( K = 2) policy, the system serves the server according to the state of the dormant activity of the site. It used the qualified (K =2) service policy to ensure that the fairness of the system is not impaired, and distinguishing the dormant activity state of the site avoids the service to the dormant site without information packets. Compared with the existing service strategy, the system performance is significantly improved. [ABSTRACT FROM AUTHOR]

Copyright of Engineering Management & Technology Discussion is the property of Omniscient Pte. Ltd. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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Copyright of China Surfactant Detergent & Cosmetics (1001-1803) is the property of China Surfactant Detergent & Cosmetics Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)