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Whole-process optimization for industrial Production of glucosamine sulfate sodium chloride based on QbD concept

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Chinese Journal of Chemical Engineering 2023年第2期54卷 153-161页

作者： Yingjun Lin School of Pharmacy Shanghai Jiao Tong UniversityShanghai 200240China Xiamen Blue Bay Science&Technology Co.Ltd Xiamen 361026China

The double salt of glucosamine sulfate sodium chloride(glucosamine-SP) is an important pharmaceuticals ingredient for healing osteoarthritis. However, the study about its industrial Production is rarely documented, let alone the optimization over the whole process to produce glucosamine-SP using glucosamine hydrochloride and anhydrous sodium sulfate as synthetic raw materials. In order to improve the Production efficiency, this study screened the process parameters based on the concept of quality by design(QbD), optimized 13 operational parameters related to reaction and separation in the process, and finally proposed the mixed dropping process. The reaction conditions for the preparation of glucosamineSP were found as follows: the molar ratio of anhydrous sodium sulfate to glucosamine hydrochloride is 0.42, the mass ratio of water to glucosamine hydrochloride is is 2.0, the reaction temperature is 50 ℃ and the reaction time is 1 h. Through step-by-step scaling up following QbD, the mixed dropping process was successfully applied to achieve a trial Production of 200 kg products satisfying national quality standards.In all, the results of this study have high technical value and guiding significance for the industrial mass Production of glucosamine-SP.

关键词： Glucosamine sulfate sodium chloride Optimization Quality by design(QbD) Production Glucosamine hydrochloride Sodium sulfate

一种基于“最优捕集窗口”设计的全球化空气取水系统

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Science Bulletin 2024年第10期69卷 1437-1447页

作者：李乾邵昭邹启宏潘权稳赵曜冯耀辉王雯雯王如竹葛天舒 Institute of Refrigeration and Cryogenics Shanghai Jiao Tong UniversityShanghai 200240China

Atmospheric water harvesting(AWH)is a promising solution to the water shortage problem.Current sorption-based AWH(SAWH)systems seldom obtain both wide climatic adaptability and high energy efficiency due to the lack of thermodynamic optimization.To achieve the ideal harvesting circulation in SAWH systems,the“optimal harvesting window”(OHW)design based on thermodynamic analysis was first proposed and validated by our prototype.The“OHW”theory indicates the water Production rate and energy efficiency could be improved by properly reducing the adsorption temperature.As the humidity increases,the optimal adsorption temperature should be closer to the dew point of the environment.Experimental results revealed that,loaded with 3 kg widely adopted silica gel,the daily water Production could reach 5.76-17.64 L/d with ultrahigh energy efficiency of 0.46-1.5 L/kWh.This prototype could also achieve optimal performance in wide climatic conditions in terms of 13-35℃and 18%-72%RH.Lastly,the performance of photovoltaic(PV)-driven SAWH was evaluated.Results showed that a 1 m^(2)PV panel could generate 0.66-2 L water per day in Shanghai throughout the year,the highest in opening literature.Notably,this work introduces a promising concept that can help achieve large-scale,ultra-fast,energyefficient AWH worldwide.

关键词： Atmospheric water harvesting Thermodynamic optimization Optimal harvesting window Large-scale and worldwide water Production

Chitin oligosaccharides for the food industry:Production and applications

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Systems Microbiology and Biomanufacturing 2023年第1期3卷 49-74页

作者： Ran Zhang Qiong Zhao Zhenwei Yi Kaihang Zhang Jinqi Shi Liangliang Zhu Yijia Chen Jiayang Jin Liming Zhao State Key Laboratory of Bioreactor Engineering East China University of Science and TechnologyShanghai 200237China Shanghai Collaborative Innovation Center for Biomanufacturing Technology(SCICBT) Shanghai 200237China Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism School of PharmacyEast China University of Science and Technology130 Mei Long RoadShanghai 200237China

Chitin oligosaccharides(CHOS),high-value-added oligomers linked by N-acetyl-d-glucosamine(GlcNAc,NAG),and a small amount of d-glucosamine(GlcN,GA),have aroused increasing interest due to their excellent biological properties,including antibacterial,anti-inflammatory,and immunoprotective activities,and intestinal regulation.The efficient Production and utilization of CHOS with high performance can solve problems from chitin as biowaste.However,the large-scale Production of well-defined CHOS has not been fully accomplished due to the limited biotechnology and separation methods,thus impeding the research on their biological functions as well as their accurate applications.In this review,we comprehensively summarize the current preparation methods of CHOS,including the chemical,physical,enzymatic and biosynthetic methods.The advantages and disadvantages of the methods are discussed in terms of efficiency,economy,and environmental effects.Furthermore,the applications of CHOS in the food industry and their contributions to human health based on their excellent bioactivities are expounded.It is hoped that this review will help in providing new insights into the Production of CHOS with high precision,and support the application of CHOS in serving the food industry as nutritional supplements or foods for special medical purposes.

关键词： Chitin Chitin oligosaccharides Chitooligosaccharides Production Food applications

1980-2018年孟加拉国Aus水稻面积、产量与单产的时空格局变化及其对干旱的响应

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Journal of Geographical Sciences 2022年第10期32卷 2069-2084页

作者： KHONDAKAR Arifuzzaman 董金玮李之超邓祥征 SINGHA Mrinal RAHMAN Md.Mizanur 金哲侬王绍强甄霖肖向明 Key Laboratory of Land Surface Pattern and Simulation Institute of Geographic Sciences and Natural Resources ResearchCASBeijing 100101China University of Chinese Academy of Sciences Beijing 100094China Department of Geography and Environment Pabna University of Science and TechnologyPabna 6600Bangladesh Deputy Director(Monitoring) Field Services WingDepartment of Agricultural ExtensionMinistry of AgricultureBangladesh Department of Bioproducts and Biosystems Engineering University of Minnesota-Twin CitiesSaint PaulMNUSA Institute of Geographic Sciences and Natural Resources Research CASBeijing 100101China Department of Microbiology and Plant Biology University of OklahomaNorman OK 73019USA

Bangladesh is one of the most vulnerable countries to natural disasters such as droughts in the world.The pre-monsoon Aus rice in Bangladesh depends on rainfall and is threatened by increasing droughts.However,limited information on the changes in Aus rice as well as droughts hamper our understanding of the country’s agricultural resilience and adaption to droughts.Here,we collected all the official statistical data of Aus rice at the district level from 1980 to 2018,and examined the interannual variations of area,yield,and Production.The results showed both area and Production of Aus rice decreased significantly(61.58×103 ha yr-1 and 17.21×103 M.tons yr-1,respectively),while yield increased significantly(0.03 M.tons ha-1 yr-1).We also found a significantly increasing trend of droughts in 88%of area based on the Palmer Drought Severity Index(PDSI)data,especially in those rainfed agricultural areas.Moreover,we found significant positive correlations between PDSI and Aus rice area(Production)in 33(25)out of 64 districts.There is hardly a relationship between PDSI and yield,likely due to the improved management and increasing irrigated areas.Implementing continuous drought monitoring,combined irrigation(surface and groundwater)systems,and conservation and precision agriculture are highly recommended in these drought-prone districts to ensure food security in Bangladesh.

关键词： Aus rice droughts acreage Production yield PDSI Bangladesh

Sources,Production and commercial applications of fungal chitosan:A review

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Journal of Bioresources and Bioproducts 2022年第2期7卷 3-16页

作者： Tanzina Huq Avik Khan David Brown Natasha Dhayagude Zhibin He Yonghao Ni Department of Chemical Engineering&Limerick Pulp and Paper Centre University of New BrunswickFrederictonNew Brunswick E3B 5A3Canada Chinova Bioworks Inc. 85 Hubbard RdFrederictonNBE3B 6B3Canada

Chitosan is a type of biopolymer that can be obtained from animal/marine sources,and it can also be extracted or produced from agriculture waste products like mushroom or different fungal sources after the chitin deacetylation.Depending on the size of mushroom farm,the amount of waste ranges between 5%and 20%of the Production volume.The cell wall of the filamentous fungi,a good source of chitin,offers an easy way to extract chitin.The physicochemical character-istics such as molecular weight and degree of deacetylation of fungal chitosan can be controlled compared to chitosan obtained from crustacean sources.Fungal sourced chitosan can be used in food,pharmaceutical or biomedical applications for different applications,for example,as an antimicrobial agent,coating material,water purification or bio-pesticide.This review mainly fo-cused on the extraction of chitin from mushroom or different fungal sources and also showed some applications of commercial chitosan products.

关键词： Fungal chitosan Source Production Commercial application

Meta-analysis in the Production chain of aquaculture: A review

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Information Processing in Agriculture 2022年第4期9卷 586-598页

作者： Guanghui Yu Chunhong Liu Yingying Zheng Yingyi Chen Daoliang Li Wei Qin National Innovation Center for Digital Fishery China Agricultural UniversityChina Beijing Engineering and Technology Research Centre for Internet of Things in Agriculture China Agriculture University Beijing 100083China Precision Agricultural Technology Integration Research Base(Fishery) Ministry of Agriculture and Rural AffairsChina Key Laboratory of Agricultural Information Acquisition Technology Ministry of AgricultureChina Agriculture UniversityBeijing 100083China College of Information and Electrical Engineering China Agricultural UniversityBeijing 100083China Biological Engineering Utah State UniversityLoganUT 84341United States

Meta-analysis is a statistical analysis of the data obtained from multiple studies and pro-vides a quantitative synthesis of research results.It can be a key tool for facilitating rapid progress in aquaculture by quantifying what is known and identifying what is not yet known.However,due to the complexity of the environment and problems associated with the use of model in aquaculture,it remain few guidelines for the design,implementation or interpretation of meta-analysis in the field of aquaculture.Here,we first briefly reviewed the history of meta-analysis,then summarized the applications of meta-analysis in terms of major procedures,standards,and methods.Next,we critically reviewed the results of meta-analysis studies in the Production chain of aquaculture and identified the potentials for improving yield in both quantity and quality.Overall,there is a large room for improving yield along the Production chain.Large contributions can be found in breeding,feed,and farm management.For example,improving breeding can increase yield by 5.6%to 49%,depending on fish species and type of improvements.This study revealed large potentials for improving yield in the Production chain of aquaculture and summarized the application of meta-analysis in aquaculture.Some recommendations of standardizing and improving meta-analysis in aquaculture were proposed.

关键词： Aquaculture Quantitative analysis Meta-analysis Production

Possible dibaryon Production at Panda with a Lagrangian approach

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Chinese Physics C 2022年第2期46卷 49-56页

作者：董宇兵沈彭年 Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China School of Physical Sciences University of Chinese Academy of SciencesBeijing 101408China

In order to confirm the existence of the dibaryon state d^(*)(2380)observed at WASA@COSY,we estimate the cross section for Production of the possible dibaryon and anti-dibaryon pair d^(*)d^(*)in the energy region of the upcoming experiments at Panda.Based on some qualitative properties of d^(*)extracted from the analyses in the non-relativistic quark model,the Production cross section for this spin-3 particle pair are calculated with the help of a phenomenological effective relativistic and covariant Lagrangian approach.

关键词： Panda experiments d^(*)(2380) phenomenological effective Lagrangian approach pp annihilation Production

The age and quality of pond bottom soil affect water quality and Production of Pangasius hypophthalmus in the tropical environment

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Aquaculture and Fisheries 2023年第3期8卷 296-304页

作者： Saberina Hasibuan Syafriadiman Syafriadiman Netti Aryani Muhammad Fadhli Monalisa Hasibuan Environmental Quality Laboratory Department of Aquaculture Faculty of Fisheries and Marine SciencesUniversity of RiauPekanbaru28293Indonesia Department of Aquaculture Faculty of Fisheries and Marine Sciences University of RiauPekanbaru28293Indonesia Graduate of Aquaculture Faculty of Fisheries and Marine Sciences University of RiauPekanbaru28293Indonesia Researcher at the Board of Research and Development of Riau Province Indonesia

Pangasius hypophthalmus is the most cultured freshwater fish by smallholder farmers in Indonesia.One of the main challenges in the Production is the highly weathered and infertile soils on the bottom of a pond that influences aquaculture productivity.This work investigated the effects of pond age on soil quality,water quality,benthic algae population,and P.hypophthalmus Production.We carried out a field experiment in a randomized design with pond age of 4 levels:Ponds aged 0-5 years(P1),6-10 years(P2),11-15 years(P3),and 16-20 years(P4).The soil is a Typic Palaeudult(Ultisol),and fish were grown for three months.The results showed that the chemical soil quality parameters and soil organic matter content increased linearly with pond age,resulting in the enhancement of water quality parameters.The increase in nitrate and phosphate directly affected benthic algae richness.These,in turn,in the highest fish Production in P3,6.4 kg/m^(2),specific growth rate was 3.76%/d,survival rate of 66.7%,and feed conversion ratio of 1.8%.Linear correlation coefficients indicated that the contents of total N,total P,and organic carbon in the bottom soil of the pond were related to the increase in phosphate,nitrate,and organic matter content in pond water.Total N content,total P,carbon organic matter,C/N ratio,and CEC value in pond bottom soil significantly correlated to Pangus fish Production.C/N ratio,CEC value in pond bottom soil,and CO_(2)concentration in pond water significantly correlated to fish survival rate.Multiple linear regression indicated that fish Production was significantly related to the pond age,water NH3,total alkalinity,and soil total P and C/N ratio(R^(2)=0.99,PProduction.The results suggested that old-aged ponds,with proper management,act as a nutrient sink,resulting in increased aquaculture Production.The implementation of the best practices will benefit the Pangus culture in the tropical environment.

关键词： Benthic algae Production Soil pond Soil quality Sediment-water interface

Effect of manganese oxide-modified biochar addition on methane Production and heavy metal speciation during the anaerobic digestion of sewage sludge

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Journal of Environmental Sciences 2019年第2期31卷 267-277页

作者： Jianhua Li Min Zhang Zhiyin Ye Changming Yang Key Laboratory of Yangtze River Water Environment of the Ministry of Education Tongji University

Low organic matter content and high heavy metal levels severely inhibit the anaerobic digestion(AD) of sewage sludge. In this study, the effect of added manganese oxidemodified biochar composite(MBC) on methane Production and heavy metal fractionation during sewage sludge AD was examined. The MBC could increase the buffering capacity,enhance the methane Production and degradation of intermediate acids, buffer the pH of the culture, and stabilize the sewage sludge AD process. The application of MBC positively impacted methane Production and the cumulative methane yield increased up to 121.97%,as compared with the control. The MBC addition can improve metal stabilization in the digestate. An optimum MBC dose of 2.36 g was recommended, which would produce up to 121.1 L/kg volatile solids of methane. After the AD process, even though most of the metals accumulated in the residual solids, they could be transformation from the bio-available fractions to a more stable fraction. The total organic-and sulfide-bound and residual fraction content at a 3 g dose of MBC that is 0.12 g/g dry matter were 51.06% and 35.11% higher than the control, respectively. The results indicated that the application of MBC could improve the performance of AD and promote stabilization of heavy metals in sewage sludge post the AD process.

关键词： Sewage sludge Anaerobic digestion Manganese oxide-modified biochar (MBC) Methane Production Heavy metals Chemical species