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Rumen microbial degradation of bromoform from red seaweed(Asparagopsis taxiformis)and the impact on rumen fermentation and methanogenic archaea

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Journal of Animal Science and Biotechnology 2024年第1期15卷 412-426页

作者： Pedro Romero Alejandro Belanche Elisabeth Jiménez Rafael Hueso Eva Ramos-Morales joan king Salwen Ermias Kebreab David R.Yáñez-Ruiz Estacion Experimental del Zaidin Consejo Superior de Investigaciones Cientificas(CSIC)Profesor Albareda 1Granada 18008Spain Department of Animal Production and Food Sciences University of ZaragozaMiguel Servet 177Saragossa 50013Spain Blue Ocean Barns Inc. Redwood CityCAUSA Department of Animal Science University of CaliforniaDavisCA 95618USA

Background The red macroalgae Asparagopsis is an effective methanogenesis inhibitor due to the presence of halogenated methane(CH_(4))analogues,primarily bromoform(CHBr_(3)).This study aimed to investigate the degradation process of CHBr3 from A taxiformis in the rumen and whether this process is *** in vitro batch culture system was used according to a 2×2 factorial design,assessing two A taxiformis inclusion rates[0(CTL)and 2%DM diet(AT)]and two diets[high-concentrate(HC)and high-forage diet(HF)].Incubations lasted for 72 h and samples of headspace and fermentation liquid were taken at 0,0.5,1,3,6,8,12,16,24,48 and 72 h to assess the pattern of degradation of CHBr_(3) into dibromomethane(CH_(2)Br_(2))and fermentation ***,an in vitro experiment with pure cultures of seven methanogens strains(Methanobrevibacter smithii,Methanobrevibacter ruminantium,Methanosphaera stadtmanae,Methanosarcina barkeri,Methanobrevibacter millerae,Methanorhermobacter wolfei and Methanobacterium mobile)was conducted to test the effects of increasing concentrations of CHBr3(0.4,2,10and 50μmol/L).Results The addition of AT significantly decreased CH_(4) production(P=0.002)and the acetate:propionate ratio(P=0.003)during a 72-h *** concentrations of CHBr_(3) showed a rapid decrease with nearly 90%degraded within the first 3 h of *** the contrary,CH_(2)Br_(2) concentration quickly increased during the first 6 h and then gradually decreased towards the end of the *** CHBr_(3) degradation nor CH_(2)Br_(2) synthesis were affected by the type of diet used as substrate,suggesting that the fermentation rate is not a driving factor involved in CHBr_(3)*** in vitro culture of methanogens showed a dose-response effect of CHBr3 by inhibiting the growth of ***,***,***,***,***,***,and *** The present work demonstrated that CHBr_(3) from *** is quickly degrad

关键词： Bromoform metabolism Dibromomethane metabolism Methane mitigation Methanogens Rumen microbiota Seaweed

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Detection of antibiotic resistance toxigenic Clostridium difficile in processed retail lettuce

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Food Quality and Safety 2018年第1期2卷 37-41页

作者： Yi Han joan king Marlene E.Janes School of Nutrition and Food Sciences Louisiana State University Agricultural CenterBaton RougeLouisianaUSA

Objectives:Clostridium difficile is the major cause of infectious diarrhoea in humans after antimicrobial *** difficile has been isolated from food animals and *** main purpose of this study was to characterize *** isolated from retail lettuce and determine the antibiotic resistance using five common clinical-selected antibiotics(metronidazole,vancomycin,clindamycin,erythromycin,and cefotaxime).Materials and Methods:Lettuce samples(grown in California,Arkansas,and Louisiana)were purchased from retail ***:Toxigenic *** was isolated from 13.8 per cent(41/297)of the lettuce *** the toxigenic isolates,only 82.9 per cent(34/41)produced toxin B,17.1 per cent(7/41)produced both toxin A and toxin B,and two of the Louisiana *** isolates were identified as ribotype *** the treatment of the five antibiotics,the virulence *** isolates were identified as having antibiotic resistance to metronidazole,vancomycin,and ***:The present study reports the highest prevalence of toxigenic *** in US retail *** antibiotic resistance to metronidazole,vancomycin,and erythromycin of the isolated *** from retail lettuces could lead to public health concerns.

关键词： Clostridium difficile lettuce toxigenic toxin A toxin B antibiotic.

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Rumen microbial degradation of bromoform from red seaweed (Asparagopsis taxiformis) and the impact on rumen fermentation and methanogenic archaea

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畜牧与生物技术杂志(英文版) 2024年第1期

作者： Pedro Romero Alejandro Belanche Elisabeth Jiménez Rafael Hueso Eva Ramos-Morales joan king Salwen Ermias Kebreab DavidR.Yáñez-Ruiz

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Quantitation of Pesticide Residue in Water and Food in Louisiana, USA

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Journal of Water Resource and Protection 2016年第12期8卷 1145-1157页

作者： Olubode Adeniyi Amy Hernandez Mark LeBlanc joan king Marlene Janes School of Nutrition and Food Science AgCenter Louisiana State University Baton Rouge USA Agricultural Chemistry Department AgCenter Louisiana State University Baton Rouge USA Agricultural Chemistry Division Louisiana State Department of Agriculture and Forestry Baton Rouge USA

Pesticides can remain in the environment for decades and contaminate surface water that is used for irrigation of produce. This study examined pesticide residues in some surface waters and foods in Louisiana. Samples of 8 foods (tomato, corn, rice, blueberry, cucumber, cabbage, wheat and melon) and 35 surface waters were studied using a QuEChERS extraction method for food samples and liquid-liquid extraction method for the water samples. Gas chromatography-mass spectrometry was used to analyze water and food samples. Nine pesticides were detected in the surface water samples and 5 in the food samples. Pesticides detected in foods were below FDA tolerance limit but 0.18 ppm cypermethrin found in tomato was within 90% of the FDA limit (0.2 ppm). Four water samples had atrazine levels that were above the FDA limit for potable water. This study suggests the need to intermittently monitor pesticide contamination in our food and water.

关键词： Gas Chromatography Mass Spectrometry QuEChERS Cypermethrin Atrazine Pesticide FDA

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Alleviation of Pesticide Residue in Surface Water

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Journal of Water Resource and Protection 2017年第5期9卷 523-535页

作者： Olubode Adeniyi Amy Hernandez Mark LeBlanc joan M. king Marlene Janes Agricultural Chemistry Department Ag Center Louisiana State University Baton Rouge Louisiana USA Pesticide Unit Louisiana State Department of Agriculture and Forestry Baton Rouge Louisiana USA School of Nutrition and Food Science Ag Center Louisiana State University Baton Rouge Louisiana USA

Reduction of environmental pollution incurred from pesticide use is very important. Zeolite is a natural mineral capable of removing certain chemical contaminants from water. This study was carried out to test the effect of zeolite treatment on pesticide residue alleviation in surface water. Ten surface water samples were treated with natural zeolite by filtering through. An EPA method was used to extract pesticide residue from the water samples and the surfactant used to modify the net charge on the zeolite was hexadecyltrimethylammonium chloride (HDTMA-Cl). Gas chromatography-mass spectrometry was used to analyze water samples. Alleviation was achieved in all the 10 water samples that were filtered through zeolite. The highest removal of pesticides from water with zeolite included 100% of bifenthrin in sample CLC, atrazine in BPH, CDG and LBT;metolachlor in CLC, LBT, BCH, TRH2 and BPI;acetolachlor in BBH and BCH;azoxystrobin in BBH;desethylatrazine in BCH and BPI;metribuzin in BCH, TRH2 and BPI;and both clomazone and bromacil in sample BDC. A minimum reduction of 10.9% was found for metolachlor in sample BRH. Further reduction of pesticide residues up to 50% was recorded in the SMZ treatment as the concentrations of 4 out of 8 pesticide residues were reduced. This study confirms the potential of both the natural zeolite-Clinoptilolite, and SMZ of alleviating pesticide residues in water.

关键词： EPA (United States Environmental Protection Agency) Gas Chromatography Mass Spectrometry Zeolite Hexadecyltrimethylammonium Chloride (HDTMA-Cl) Surface-Modified-Zeolite (SMZ) Bifenthrin Metolachlor Metribuzin Acetolachlor Azoxystrobin Desethylatrazine Clomazone Bromacil Atrazine Clinoptilolite Alleviation

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Corrigendum to:Detection of antibiotic resistance toxigenic Clostridium difficile in processed retail lettuce

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Food Quality and Safety 2020年第1期4卷 53-53页

作者： Yi Han joan king Marlene E.Janes 不详

In the originally published version of this article the term‘Anonymous’was used incorrectly in a citation and in the associated *** has now been corrected to‘The Swedish CDAD Study Group’in the second paragraph and in the following reference:Anonymous.(1994).Treatment of Clostridium difficile associated diarrhea and colitis with an oral preparation of teicoplanin.

关键词： diarrhea Cor resistance

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Personalized nutrition to mitigate inflammation in genetically predisposed individuals: a secondary analysis of the Danish PREVENTOMICS intervention

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Food Science and Human Wellness 2024年

作者： Sebastià Galmés Andreu Palou-March Kristina Pigsborg Mona Adnan Aldubayan Sophia M.O.Gormsen Alberto Calleja joan Trabal Vanesa Martínez Biotza Gutiérrez Josep M.Del Bas Faidon Magkos Francisca Serra Eurecat， Centre tecnològic de Catalunya， Biotechnology Area Avd Universitat 1 Laboratory of Molecular Biology， Nutrition and Biotechnology (Nutrigenomics， Biomarkers and Risk Evaluation-NuBE)， University of the Balearic Islands Health Research Institute of the Balearic Islands (IdISBa) CIBER of Physiopathology of Obesity and Nutrition (CIBEROBN)， Carlos III Health Institute (ISCIII) Alimentómica S.L.， Camí de na Pontons.s/n (Pol.11，Parc 3) Department of Nutrition， Exercise and Sports， Faculty of Science， University of Copenhagen Department of Clinical Nutrition， College of Applied Medical Sciences， king Saud bin Abdulaziz University for Health Sciences R&D， Food & Culinary Department Simple Feast Leitat Technological Center C/Innovació 2 Creaciones Aromáticas Industriales SA， Cuatrecasas i Arumí， Sant Quirze del Valles

Deep phenotyping and genetic characterization of individuals are fundamental to assessing the metabolic status and determining nutrition-specific requirements. This study aimed to ascertain the utmost effectiveness of personalized interventions by aligning dietary adjustments with both the genotype and metabolotype of individuals. Therefore， we assessed here the usefulness of a polygenic score (PGS) characterizing a potential pro-inflammatory profile (PGSi) as a nutrigenetic tool to discern individuals from the Danish PREVENTOMICS cohort that could better respond to precision nutrition (PN) plans， specifically targeted at counteracting the low-grade inflammatory profile typically found in obesity. The cohort followed a PN plan to counteract the pro-inflammatory profile (PNi group) or generic dietary recommendations (Control) for 10 weeks. PGSi was applied for genetic stratification (Low/High). The effects of the intervention on anthropometrics and biomarkers related to inflammatory profile and carbohydrate metabolism were assessed. Around 30% of subjects had a high genetic predisposition to pro-inflammatory status (high-PGSi). These individuals demonstrated the most effective response to the dietary plan， experiencing improved body composition， with significant decreases in body weight (△: -4.84%; p=0.039) and body fat (△: -4.86%; p=0.007)， and beneficial changes in pro- and anti-inflammatory biomarkers， with significant increases in IL-10 (△: 71.3%; p=0.025) and decreases in TNF-α (△: -3.0%; p=0.048)， CRP (△: -31.1%)， ICAM1 (△: -5.8%)， and MCP1 (△: -4.2%) circulating levels， compared to low-PGSi individuals. Both phenotypic and genetic stratification contributed to a better understanding of metabolic heterogeneity in response to diet. This approach allows for refinement of the prediction of individual requirements and potentially for better management of obesity.

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Feasibility of using pedometers in a state-based surveillance system：2014 Arizona Behavioral Risk Factor Surveillance System

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Journal of Sport and Health Science 2018年第1期7卷 34-41页

作者： Alberto Flórez-Pregonero Janet E.Fulton joan M.Dorn Barbara E.Ainsworth School of Nutrition and Health Promotion College of Health Solutions Arizona State University Phoenix AZ 85004 USA Pontificia Universidad Javeriana Bogot6 110231 Colombia Physical Activity and Health Branch Division of Nutrition Physical Activity and Obesity Center for Chronic Disease Prevention and Health Promotion U.S. Centers for Disease Control and Prevention Atlanta GA 30340 USA Department of Community Health and Social Medicine City University of New York (CUNY) School of Medicine New York NY 10031 USA

Background: Despite their utility in accessing ambulatory movement, pedometers have not been used consistently to monitor physical activity in U.S. surveillance systems. This study was designed to determine the feasibility of using pedometers to assess daily steps taken in a sub-sample of adults from Maricopa County who completed the 2014 Arizona Behavioral Risk Factor Surveillance System ***: Respondents were sent an Omron HJ324 U pedometer, a logbook to record steps taken, and a walking questionnaire. The pedometer was worn for 7 days. Feasibility was assessed for acceptability(interest in study), demand(procedures followed correctly), implementation(time to complete study), and practicality(cost).Results: Acceptability was modest with 23.9%(830/3476) agreeing to participate. Among those participating(92.9%; 771/830), 50.1%(386/771)returned the logbook. Demand was modest with 39.3%(303/771) of logbooks returned with valid data. Implementation represented 5 months to recruit participants. The cost to obtain valid step-count data was USD61.60 per person. An average of 6363 ± 3049 steps/day were taken with most participants classified as sedentary(36.0%) or low active(35.6%).Conclusion: The feasibility of using pedometers in a state-based surveillance system is modest at best. Feasibility may potentially be improved with easy-to-use pedometers where data can be electronically downloaded.

关键词： Assessment Measurement Physical activity Public health

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Evaluation of Antimycobacterial Activity of Higenamine Using Galleria mellonella as an In Vivo Infection Model

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Natural Products and Bioprospecting 2018年第1期8卷 63-69页

作者： Paul Erasto Richard Sunguruma joan J.Munissi Victor Wiketye Charles de Konig Atallah F.Ahmed National Institute for Medical Research P.O.Box 9653Dar Es SalaamTanzania Department of Chemistry University of Dar es SalaamDar Es SalaamTanzania School of Chemistry Witwatersrand UniversityJohannesburgRepublic of South Africa Department of Pharmacognosy College of PharmacyKing Saud UniversityP.O.Box 2457Riyadh 11451Saudi Arabia

The Phytochemical investigation on MeOH extract on the bark of Aristolochia brasiliensis Mart.&Zucc(Aristolochi-aceae)led to the isolation of major compound(1)as light brown grainy *** compound was identified as 1-(4-hydroxybenzyl)-1,2,3,4-tetrahydroisoquinoline-6,7-diol(higenamine)on the basis of spectroscopic analysis,including 1D and 2D NMR *** compound was evaluated for its antimycobacterial activity against Mycobacterium indicus pranii(MIP),using Galleria mellonella larva as an in vivo infection *** survival of MIP infected larvae after a single dose treatment of 100 mg/kg body weight of higenamine was 80%after 24 *** the compound exhibited a dose dependent activity,as evidenced by the reduction of colony density from 10^(5) to 10^(3) CFU for test concentrations of 50,100,150 and 200 mg/kg body weight *** IC50 value for higenamine was 161.6 mg/kg body weight as calculated from a calibration *** analysis showed that,a complete inhibition of MIP in the *** could be achieved at 334 mg/kg body *** the fact that MIP has been found to be highly resistant against isoniazid(INH)in an in vitro assay model,in this study the microbe was highly susceptible to this standard anti-TB *** isolation of higenamine from the genus Aristolochia and the method used to evaluate its in vivo antimycobacterial activity in *** are herein reported for the first time.

关键词： Aristolochia brasiliensis Galleria mellonella Higenamine Isoniazid Mycobacterium indicus pranii Antimycobacterial activity

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动物也会悲伤

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环球科学 2013年第8期 84-89页

作者：芭芭拉·J·金(Barbara J.king) 冯泽君(翻译)

在希腊阿姆夫拉基亚湾（Amvrakikos Gulf）的一艘科考船上，琼·贡萨尔沃（joan Gonzalvo）曾亲眼目睹一只雌宽吻海豚（bottlenose dolphin）的悲痛，它逆着水流，不断用鼻子和胸鳍推着它的幼崽远离科考船，像是想把它的孩子摇醒，可惜... 详细信息

在希腊阿姆夫拉基亚湾（Amvrakikos Gulf）的一艘科考船上，琼·贡萨尔沃（joan Gonzalvo）曾亲眼目睹一只雌宽吻海豚（bottlenose dolphin）的悲痛，它逆着水流，不断用鼻子和胸鳍推着它的幼崽远离科考船，像是想把它的孩子摇醒，可惜幼崽已死，徒劳无功。幼崽暴露在烈日下，皮肤很快就开始腐烂，雌海豚不时地清除从尸体上散落的死皮和组织。

关键词：悲伤动物科考海豚胸鳍鼻子

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