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Screening of probiotics with efficient α-glucosidase inhibitory ability and study on the structure and function of its extracellular polysaccharide

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food Bioscience 2022年第1期45卷 131-145页

作者： Jia-Bin Wang Le-Yi Yu Xu Zeng Jun-Wei Zheng Bin Wang Li Pan School of Biology and Biological Engineering South China University of TechnologyGuangzhouChina Guangdong Provincial Key Laboratory of Fermentation and Enzyme Engineering South China University of TechnologyGuangzhouChina

Inhibition ofα-glucosidase activity is an important strategy in lowering the concentration of blood *** this paper,using domestic and foreign characteristic food-derived substances as the sources of lactobacillus,the performance of them were evaluated by measuring the strains’α-glucosidase inhibitory ***,the cell-free extracellular supernatants(CFS)of Lactobacillus rhamnosus LB1lac10 was determined to have the highest α-glucosidase inhibition *** on the Nanopore third-generation sequencing technology platform,the genome of LB1lac10 was sequenced and functional gene annotation was *** that,the biological activity and structural composition of the exopolysaccharide produced by *** LB1lac10 were *** purified exopolysaccharide EPS1-1 also showed efficientα-glucosidase inhibitory *** structure and conformation characteristics of EPS1-1 were further *** EPS1-1 from *** LB1lac10 had a molecular weight of 88,650 Da,and it was mainly composed of mannose,glucuronic acid,glucose,xylose,galactose,and *** the FT-IR and NMR analyses,EPS1-1 had functional groups of a typical polysaccharide structure and contained two types of glycosidic bonds with α-configuration *** main glycosidic bond corresponded to→4)-α-D-Glcp-(1→,which might be an important reason why EPS1-1 could inhibit α-*** studies showed that EPS1-1 had high heat resistance to meet the needs of food *** results suggested that *** LB1lac10 could be used as a potential probiotic to lower blood sugar,and the EPS1-1 has the potential to serve as a naturalα-glycosidase inhibitor to regulate the concentration of blood glucose.

关键词： Lactobacillus rhamnosus α-glucosidase inhibitory activity Third-generation sequencing Extracellular polysaccharide Probiotic activity

Impact of transport of fine and ultrafine particles from open biomass burning on air quality during 2019 Bangkok haze episode

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Journal of Environmental Sciences 2020年第11期32卷 149-161页

作者： Racha Dejchanchaiwong Perapong Tekasakul Surajit Tekasakul Worradorn Phairuang Nobchonnee Nim Chaiyoth Sresawasd Kunchira Thongboon Thunyapat Thongyen Panwadee Suwattiga Air Pollution and Health Effect Research Center Prince of Songkla UniversityHat YaiSongkhla 90112Thailand Department of Chemical Engineering Faculty of EngineeringPrince of Songkla UniversityHat YaiSongkhla 90112Thailand Department of Mechanical Engineering Faculty of EngineeringPrince of Songkla UniversityHat YaiSongkhla 90112Thailand Department of Chemistry Faculty of SciencePrince of Songkla UniversityHat YaiSongkhla 90112Thailand Faculty of Environmental Management Prince of Songkla UniversityHat YaiSongkhla 90112Thailand Energy System Research Institute Prince of Songkla UniversityHat YaiSongkhla 90112Thailand Department of Environmental Engineering Faculty of EngineeringPrince of Songkla UniversityHat YaiSongkhla 90112Thailand Department of technology and Environmental Management Faculty of environmentKasetsart UniversityBangkok 10900Thailand Department of Agro-Industrial Food and Environmental TechnologyFaculty of Applied ScienceKing Mongkut's University of Technology North BangkokBangkok 10900Thailand

Transboundary and domestic aerosol transport during 2018–2019 affecting Bangkok air quality has been *** characteristics of size-segregated ambient particles down to nano-particles collected during 2017 non-haze and 2018–2019 haze periods were *** average PM2.5 concentrations at KU and KMUTNB sites in Bangkok,Thailand during the haze periods were about 4 times higher than in non-haze *** highest average organic carbon and elemental carbon concentrations were 4.6±2.1μg/m3 and 1.0±0.4μg/m3,respectively,in PM0.5–1.0 range at KU *** values of OC/EC and charEC/soot-EC ratios in accumulation mode particles suggested the significant influence of biomass burning,while the nuclei and coarse mode particles were from mixed *** concentrations during 2018–2019 haze period at KU and KMUTNB were 3.4±0.9 ng/m3 and 1.8±0.2 ng/m3,*** PAH diagnostic ratio of PM2.5 also suggested the main contributions were from biomass *** is supported by the 48-hrs backward trajectory *** higher PM2.5 concentrations during 2018–2019 haze period are also associated with the meteorological conditions that induce thermal inversions and weak winds in the morning and *** values of benzo(a)pyrene toxic equivalency quotient during haze period were about 3–6 times higher than during non-haze *** should raise a concern of potential human health risk in Bangkok and vicinity exposing to fine and ultrafine particulate matters in addition to regular exposure to traffic emission.

关键词： Transboundary Domestic Carbonaceous aerosol PAHs Source apportionment

Comparison of three second-order multivariate methods for the rapid identification and quantitative analysis of tea polyphenols in Chinese teas using HPLC-DAD

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Comparison of three second-order multivariate methods for th...

Biochemical and histopathological profiling of Wistar rat treated with Brassica napus as a supplementary feed

2019中国化学会第十五届全国计算（机）化学学术会议

作者：张晓华 Qian Zhou Hui-Wen Gu Jing-Jing Zheng Xiang-Dong Qing 许昌学院 Key Laboratory of Biomarker Based Rapid-detection technology for food Safety of Henan Province Food and Bioengineering College Xuchang University College of Chemistry and Environmental Engineering Yangtze University Hunan Provincial Key Laboratory of Fine Ceramics and Powder Materials School of Materials and Environmental Engineering Hunan University of Humanities Science and Technology

In actual chromatographic analysis, retention time shifts seriously affect the accuracy of quantitative results of target analytes in complex systems. According to the recent reported references, multivariate curve resolution-alternating least squares(MCR-ALS) has an appealing advantage of possibility of handling multiple data matrices in case of nontrilinear structure, and alternating trilinear decomposition(ATLD) algorithm can also tolerate slight time shifts in HPLC-DAD data and obtain the quantitative results similar to MCR-ALS. Alternating trilinear decomposition-assisted multivariate curve resolution(ATLD-MCR) combines the basic philosophy of the ATLD algorithm and the multivariate curve resolution, which were fully utilized the advantages of ATLD and MCR strategy. In this report, the ability to process second-order chromatographic data with retention time shifts has been investigated through comparing the performances of ATLD, MCR-ALS and ATLD-MCR using the experimental data. In the first place, the validation samples contain five tea polyphenols of three concentrate levels(low, medium and high) within the calibration ranges, help to understand, visualize and interpret these features of these three second-order multivariate methods. Experimental data are also studied concerning the determination of the tea polyphenols in Chinese tea samples by HPLC-DAD. It was found that all three second-order multivariate methods performed well and obtained satisfactory qualitative and quantitative results for the analytes of interest in Pu-Er ripe tea samples and Green tea samples with slight retention time shifts. However, ATLD is disappointing due to the large time shifts for the quantitative analysis of Black tea samples and Clinacanthus nutans tea samples. MCR-ALS and ATLD-MCR have also been found to be useful in this regard, the satisfactory results(average recovery corresponding to MCR-ALS, 86.04-117.60 %, average recovery corresponding to ATLD-MCR, 89.96-115.96%) are

关键词： HPLC-DAD tea polyphenols Alternating trilinear decomposition Multivariate curve resolution Alternating trilinear decomposition-assisted multivariate curve resolution

来源： cnki会议评论

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food Science and Human Wellness 2018年第1期7卷 77-82页

作者： Kazi Md.Mahmudul Hasan Nasrin Tamanna MdAnwarul Haque Department of Biotechnology and Genetic Engineering Faculty of Applied Science and TechnologyIslamic UniversityKushtia7003Bangladesh Department of Health technology and Informatics The Hong Kong Polytechnic UniversityHong Kong

Metabolic changes together with cardiovascular and hepatic factors are related to the development of diseases like myocardial lipidosis,heart disease,and profound *** aim of this animal study is to determine the effects of high erucic acid containing rapeseed oil(Brassica napus L.)varieties on liver,kidney and heart muscles in Wistar *** Wistar rats were divided into three groups where each group containing four *** A was considered as control diet group,while Group B rapeseed wild oil group and Group C rapeseed hybrid oil group were considered as experimental diet *** levels of aspartate aminotransferase(AST),alanine aminotransferase(ALT),alkaline phosphatase(ALP),creatine kinase-MB(CK-MB)and creatinine of two experimental groups were significantly elevated while compared to the control groups(p0.05).Noticeable tissue injury observed in this study is a sign of the relative toxicity of erucic acid containing rapeseed oil to mammalian *** use of Brassica napus as a supplementary feed ingredient should be,therefore,thoroughly considered.

关键词： Rapeseed oil Rattus norvegicus Serum enzymes Erucic acid Tissue profiling

Effects of Different Combinations of Red and Blue Light on Morphology and Photosynthetic Characteristic of Tomato Seedlings

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Agricultural Biotechnology 2018年第5期7卷 54-57页

作者： Hong WANG Chunxia YAO Ying WANG Weimin ZHU Protected Horticultural Research Institute Shanghai Academy of Agricultural SciencesShanghai 201403China Key Laboratory of Protected Horticultural technology Shanghai 201403China Institute for Agro-food Standards and Testing technology Shanghai Academy of Agricultural SciencesShanghai 201403China

Blue and red light are spectral wavelengths more effective for plants. The effects of different ratios of red and blue light （R/B=2, R/B=4, R/B=8, R/B=12） provided by LEDs on morphology and photosynthetic characteristics of tomato seedlings were studied. The results showed that plant height, stem diameter, fresh weight, dry weight, seedling index and G value increased with the increase of R/B ratio until 8. On the contrary, SPDA value decreased with the increase of R/B ratio. Photosynthetic characteristics were measured by CO 2 assimilation （ Pn ）, stomatal conductance （ gs ） and intracellular CO 2 concentration （ Ci） . Pn and gs decreased with the increase of R/B ratio. Furthermore, similar trend was investigated in photochemical quenching （qP） and electron transport rate （ETR）. Results of this study suggest that compared with white LED, appropriate combination of red and blue light can enhance plant growth and photosynthetic characteristics, and the optimal blue/red ratio for tomato growth was R/B=8.

关键词： Red and blue light Tomato Morphology Photosynthetic characteristics

Types of Irrigation Water and Soil Amendment Affect the Growth and Flowering of Petunia x alkinsiana ‘Bravo Pinc’

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Phyton-International Journal of Experimental Botany 2023年第2期92卷 487-499页

作者： Abdullah M.Algahtani Fahed A.Al-Mana Khalid M.Elhindi Department of Plant Production College of Food and Agriculture SciencesKing Saud UniversityRiyadh11671Saudi Arabia Department of Vegetable and Floriculture Faculty of AgricultureMansoura UniversityMansoura35516Egypt

Water insufficiency is the hampering feature of crop sustainability,especially in arid and semi-arid ***,the effectual usage of all water resources especially underground brackish water represents the core priority in Saudi *** present study aimed to recognize the influence of different types of water irrigation(tap water as a control,salinized well water,and magnetized salinized well water)with or without soil amendments(soil without any amendment as a control,peat-moss,ferrous sulfate,and peat-moss plus ferrous sulfate)on petunia plant growth and flowering as well as ion *** Petunia plants with saline well water adversely affected growth and flowering as compared to tap water and magnetized saline well ***,plants irrigated with magnetized water showed a significant enhancement in all the studied vegetative and flowering growth parameters as compared to those irrigated with salinized well ***,mineral contents and survival of Petunia plants irrigated with magnetized well water were higher than those irrigated with tap *** with magnetized well water significantly reduced levels of Na+and Cl−ions in leaves of Petunia plants indicating the role of magnetization in alleviating harmful effects of *** conclusion,we recommend the utilization of magnetized saline well water for irrigating Petunia plants either alone or in combination with soil amendments(peat moss plus ferrous sulfate).

关键词： Flowering magnetization petunia saline water soil amendment

Evaluation of the toxicity of fluorine in Antarctic krill on soft tissues of Wistar rats

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Advances in Polar Science 2013年第2期24卷 128-132页

作者： ZHANG Ling LU Xiaoqi WANG Zhangmin QIN Liqiang YUAN Linxi YIN Xuebin School of Earth and Space Science University of Science and Technology of China Suzhou Key Lab for Eco-safety and Human Health Suzhou Institute for Advanced Study University of Science and Technology of China Department of Nutrition and food Hygiene School of Public Health Soochow University

Antarctic krill are a potential food source for humans and animals, but krill are known to contain high levels of fluorine （F）. In this study, we investigated the toxicity of F in Antarctic krill using Wistar rats. There were three experimental groups： The control group were fed a basal diet, the krill treatment group were fed the same basal diet mixed with krill powder （150 mg＇kg-~ F）, and the sodium fluoride （NaF） treatment group were fed the basal diet with added NaF （150 ***1 F）. General toxicity indicators including body weight and food intake were measured during the experiment. After three months the rats were dissected and tissue samples were collected from the liver, kidney, spleen, brain, and testis. Morphological changes in the cells of these tissues were assessed using HE staining. There were no significant differences in the body weight, the food intake, or the viscera coefficients among the three groups. In both treatment groups some pathological changes were observed in all soft tissue samples except the testis, although there were fewer and less severe pathological changes in the krill treatment group than in the NaF treatment group. The results showed that the toxicity of F in Antarctic krill was lower than for an equivalent amount of F in NaF, but it was still toxic to rats consuming large quantities of krill. The findings of this study highlight the need for further investigation into potential F toxicity if krill is to be used for human consumption.

关键词： Antarctic krill fluorine animal experiment HE staining pathological change

Review of the biological and engineering aspects of algae to fuels approach

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International Journal of Agricultural and Biological Engineering 2009年第4期2卷 1-30页

作者： Paul Chen Min Min Yifeng Chen Liang Wang Yecong Li Qin Chen Chenguang Wang Yiqin Wan Xiaoquan Wang Yanling Cheng Shaobo Deng Kevin Hennessy Xiangyang Lin Yuhuan Liu Yingkuan Wang Blanca Martinez Roger Ruan Center for Biorefining Department of Bioproducts and Biosystems EngineeringUniversity of Minnesota1390 Eckles Ave.St.PaulMN 55108USA State Key Laboratory of food Science and technology Engineering Research Center for Biomass ConversionMinistry of EducationNanchang UniversityNanchang 330047China Biochemical Engineering College Beijing Union UniversityBeijingChina College of Biological Science and technology Fuzhou UniversityFuzhou 350108China Chinese Academy of Agricultural Engineering Beijing 100125China

Current biofuel production relies on limited arable lands on the earth,and is impossible to meet the biofuel *** producing algae are alternative biofuel feedstock with potential to meet the world’s ambitious goal to replace fossil *** review provides an overview of the biological and engineering aspects in the production and processing technologies and recent advances in research and development in the algae to fuels *** article covers biology,selection and genetic modification of algae species and strains,production systems design,culture media and light management,harvest and dewatering,downstream processing,and environment and economic *** the many advances made over several decades,commercialization of algal fuels remains challenging chiefly because of the techno-economic *** breakthroughs in all major aspects must take place before commercial production of algal fuels becomes economically viable.

关键词： algae microalgae open pond enclosed photobioreactor light harvest dewatearing extraction hydrothermal liquefaction gasification pyrolysis fermentation

Farmers’willingness to accept compensation for livestock and poultry waste resource utilization and its determinants

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Chinese Journal of Population,Resources and Environment 2020年第2期18卷 144-154页

作者： Junying Tao Jianhua Wang School of Business Jiangnan UniversityWuxi214122China food Safety Research Base of Jiangsu Province Jiangnan UniversityWuxi214122China

Ecological compensation is widely considered a policy that encourages farmers to recycle livestock and poultry waste for economic and ecological ***,based on field data from 30 counties(districts)in six cities of Shandong Province,China,this study systematically analyzes farmers'willingness to accept compensation for livestock and poultry waste resource utilization as well as its *** does so using the UTAUT theoretical analysis framework,as well as the contingent valuation method and Heckman two-stage selection *** results show that,first,72.4%of the farmers in the sample are willing to accept a certain amount of compensation—the expected value of which is RMB 98.02 per month per household—as an incentive to utilize livestock ***,the key determinants of farmers'willingness to accept compensation are marital status,family annual income,concurrent business,farming scale,economic performance expectation,social performance expectation,knowledge reserve,public relations,and technical ***,the factors that affect farmers’willingness in terms of the compensation amount are gender,age,family annual income,social performance expectation,subjective norms,and public ***,to promote the recycling of livestock and poultry waste,this study proposes policies that promote education and technology popularization in relation to livestock and poultry waste resource utilization,provide subsidies for waste recycling,and strengthen government control and social supervision over the non-standard disposal of such waste.

关键词： Livestock waste Resource recovery Willingness to accept(WTA) Heckman selection model