Consulta: subjectFacets:"Aflatoxins"
Registros recuperados: 47
Data/hora: 09/06/2024 06:34:24

Manejo da irrigacao e qualidade de graos da cultura do amendoim no cerrado.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: FIGUEREDO, S. F.; ANDRADE, L. M. de; CORREA, T. B. S.; GUERRA, A. F.; ASSAD, E. D.
bitstream/CPAC-2009/24547/1/comtec_71.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Tensao; Groundnut.; Aflatoxina; Água; Amendoim; Arachis Hypogaea; Cerrado; Fungo; Manejo de Água; Irrigação; Solo.; Aflatoxins; Fungi; Irrigation; Soil water potential; Water management.
Ano: 2002
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/553120

Boas práticas de produção de amendoim visando à prevenção de contaminação por aflatoxinas no Brasil e no Mali.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: CARTAXO, C. B. da C.; SUASSUNA, T. de M. F.; GONDIM, T. M. de S.
O amendoim é uma cultura oleaginosa que constitui importante fonte de óleos e proteínas para populações do Mali e do Brasil. Em ambos os países, é produzido, principalmente, por pequenos produtores, em áreas que variam de 0,3 ha a 5 ha, com espaçamentos entrelinhas de, aproximadamente, 0,50 m, utilizando-se de 10 a 20 sementes por metro e gastando-se em torno de 90 kg de sementes/ha. A contaminação por aflatoxinas é o principal problema associado à cultura e está intimamente ligada ao crescimento de fungos (bolores) que se desenvolvem, favorecidos pelas condições climáticas nos dois países.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Boas práticas; Brasil; Aflatoxinas; Prevención de enfermedades.; Crecimiento microbiano; Amendoim; Arachis hypogaea; Produção; Contaminação fúngica; Aflatoxina; Microbial growth; Aflatoxins; Disease prevention; Mali.
Ano: 2017
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1086125

Occurrence of aflatoxins in peanuts and peanut products consumed in the State of São Paulo/Brazil from 1995 to 1997
Provedor de dados: Revista de Microbiologia
Autores: Sabino,Myrna; Milanez,Thais Valéria; Lamardo,Leda Conceição Antonia; Inomata,Emiko Ikejiri; Zorzetto,Maria Ângela Pompeu; Navas,Sandra Aparecida; Stofer,Monica.
One hundred and thirty seven samples of peanuts and peanut containing foods were collected in markets in the State of São Paulo, Brazil, between January 1995 an December 1997. Most of the samples were collected by the Inspection Service of São Paulo Secretary of Health. The foods included raw peanuts, peanut candies ("paçoca" and "pé de moleque"), peanut butter, fried/roasted salted peanuts, "torrone", chocolate coated peanuts and salt-coated peanuts. The samples were analyzed for aflatoxins using a thin-layer chromatographic method. About 45% of the samples were positive for aflatoxins and 27% exceeded the limits of the Brazilian legislation (30.0 µg.kg-1 for aflatoxins B1+G1). The aflatoxins were confirmed by derivatization with trifluoroacetic acid. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aflatoxins; Peanuts; Peanut products; Thin-layer chromatography.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37141999000100016

Assessing the implications of mycotoxins on productive efficiency of broilers and growing pigs
Provedor de dados: Scientia Agricola
Autores: Kipper,Marcos; Andretta,Ines; Ribeiro,Andréa Machado Leal; Pires,Paula Gabriela da Silva; Franceschina,Carolina Schell; Cardinal,Kátia Maria; Moraes,Priscila de Oliveira; Schroeder,Bruna.
ABSTRACT: The effects of mycotoxins on the productive performance of growing pigs and broilers were evaluated using meta-analytical approach. Two databases were constructed: (1) Broilers, with information collected from 51,497 birds and published in 158 scientific papers from 1980 to 2016; and (2) Pigs, with information collected from 7,743 animals and published in 72 scientific papers from 1980 to 2015. The meta-analyses were performed independently for each specie, following three sequential analyses: graphical, correlation, and variance-covariance. Broilers and pigs challenged by mycotoxins reduced (p &lt; 0.05) feed intake by 9 and 6 %, weight gain by 15 and 11 %, and feed efficiency by 6 and 4 % compared with non-challenged animals, respectively....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aflatoxins; Deoxynivalenol; Nutrition; Poultry; Piglet.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162020000300400

Post-harvest control of aflatoxin production in in-shell moist peanuts with sodium ortho-phenylphenate: III. Storage tests
Provedor de dados: Scientia Agricola
Autores: Fonseca,H.; Gallo,C.R.; Calori-Domingues,M.A.; Gloria,E.M.; Approbatto,P.J.; Fonseca,E.L.; Zambello,I.V.
The present experiment aimed to evaluate the effect of sodium ortho-phenylphenate (SOP) application to in-shell moist peanuts for the control of aflatoxin production. Previous studies showed the need to improve the SOP solution distribution on peanut pods to evaluate the product. Thus, in this experiment the place of the spray system was the bag filler pipe of the pre-cleaning machine in the warehouse. In the 1989 rainy season two lots of 120 bags of in-shell moist peanuts were sprayed with 0.5 and 1% SOP solutions and aflatoxin production was not controlled. In the dry season of 1989 and in the rainy season of 1990, in-shell moist peanuts were sprayed with 5% SOP solution. The coverage of pods with the solution was efficient, allowing a uniform...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aflatoxins; Peanuts; Chemical control; Sodium ortho-phenylphenate; Post-harvest.
Ano: 1994
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161994000200025

การตรวจเชื้อรา Aspergilus flavus และอะฟลาทอกซินในข้าวโพดก่อนเก็บเกี่ยว
Provedor de dados: Thai Agricultural Research Repository
7 tables
Palavras-chave: Corn; Maize; Aspergillus flavus; Aflatoxins; Pre-harvest corn; ข้าวโพด; อะฟลาทอกซิน; สารเคมีกำจัดเชื้อรา; คุณภาพ.
Ano: 1986
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4410

รายงานการดำเนินงาน โครงการรณรงค์แก้ปัญหาสารพิษแอฟลาทอกซินในข้าวโพดปี 2529
Provedor de dados: Thai Agricultural Research Repository
15 tables
Palavras-chave: Corn; Maize; Aspergillus flavus; Aflatoxins; Fungicides; ข้าวโพด; อะฟลาทอกซิน.
Ano: 1986
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4412

การแก้ไขปัญหาสารพิษอฟลาทอกซินในข้าวโพดด้วยสารเคมี
Provedor de dados: Thai Agricultural Research Repository
Autores: Pupipat, U.; Sommartya, T.; Srivatanapongse, S.; Chutkaew, C.; Fuangfupong, S.
7 ill., 1 table
Palavras-chave: Corn; Maize; Aflatoxins; Fungi; Fungicides; Aspergillus flavus; Fungistatic compound; Vita-crop; Na-acetate; Na-diacetate; Propionic acid; Na-bisulfite; Residual effect; ข้าวโพด; เชื้อรา; อะฟลาทอกซิน; สารเคมีกำจัดเชื้อรา.
Ano: 1984
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4485

การควบคุมเชื้อรา Aspergillus flavus ในเมล็ดข้าวโพดที่มีความชื้นสูงด้วยสารเคมีชนิดดูดซึมบางชนิด
Provedor de dados: Thai Agricultural Research Repository
4 tables
Palavras-chave: Corn; Maize; Aspergillus flavus; Systemic fungicides; Moisture content; Aflatoxins; ข้าวโพด; อะฟลาทอกซิน; สารเคมีกำจัดเชื้อรา; คุณภาพ.
Ano: 1986
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4409

Preliminary report on research to control aflatoxin in corn by chemicals
Provedor de dados: Thai Agricultural Research Repository
Autores: Udom Pupipat; Thammasak Sommartya; Srisit Karunyawanit; Uma Suebsang; Pansak Pittipornchai; Chaiwat To-anan; Chamnan Chutkaew.
4 tables
Palavras-chave: Corn; Maize; Aflatoxins; Fungicides; Ethylene oxide; Myco Curb; Detoxicant; Eradicant; A. flavus; ข้าวโพด; อะฟลาทอกซิน; สารกำจัดเชื้อรา.
Ano: 1985
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4581

Report on aflatoxin-free maize production in Phetchabun province for 1987
Provedor de dados: Thai Agricultural Research Repository
Autores: Chutip Chanaseni.
2 tables
Palavras-chave: Corn; Maize; Production; Fungi; Aflatoxins; Technology transfer; Phetcha bun province; ข้าวโพด; เชื้อรา; อะฟลาทอกซิน; การผลิต; การถ่ายทอดเทคโนโลยี.
Ano: 1987
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4259

Incidence of aflatoxin in corn
Provedor de dados: Thai Agricultural Research Repository
Autores: Prisnar Siriacha; Arunsri Wong-Urai; Prawat Tonboon-Ek; Dara Buangsuwon.
5 tables
Palavras-chave: Corn; Maize; Aflatoxins; Fungi; Aspergillus; Fusarium; Botryodiplodia; Penicillium; Contamination; Fields; Storage houses; ข้าวโพด; อะฟลาทอกซิน; เชื้อรา; แอสเปอร์จิลลัส; ฟูซาเรียม; โบทริโอดิพโพลเดีย; เพนนิซิเลียม.
Ano: 1982
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4092

Effect of grain type on grain aflatoxin contamination in field corn
Provedor de dados: Thai Agricultural Research Repository
Autores: Supot Faungfupong; Rungnapa Tangadulratana; Prawat Tonboon-Ek; Kanjana Bhudhasamai; Dara Buangsuwon.
2 tables
Palavras-chave: Corn; Maize; Grain type; Fungi; Aflatoxins; ข้าวโพด; ข้าวโพดเลี้ยงสัตว์; ลักษณะเมล็ด; เชื้อรา; อะฟลาทอกซิน; พันธุ์.
Ano: 1987
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4258

รายงานความก้าวหน้าผลการวิจัย Aflatoxin ในข้าวโพด
Provedor de dados: Thai Agricultural Research Repository
Autores: Nagler, Martin J.
Palavras-chave: Corn; Maize; Aspergillus flavus; Aflatoxins; ข้าวโพด; อะฟลาทอกซิน.
Ano: 1986
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4411

การศึกษาและประเมินผลโครงการศูนย์ข้าวโพดชุมชน ปี 2544/45
Provedor de dados: Thai Agricultural Research Repository
Autores: Narong Wuttiwan.
1 table
Palavras-chave: Corn; Maize; Hybrids; Yields; Quality; Drought; Aflatoxins; Farm machinery; Community center project; ข้าวโพด; โครงการศูนย์ข้าวโพดชุมชน; ผลผลิต; คุณภาพ; เครื่องจักรกลเกษตร; อะฟลาทอกซิน.
Ano: 2003
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4562

งานวิจัยการผลิตข้าวโพดประจำปี 1984
Provedor de dados: Thai Agricultural Research Repository
Autores: Supot Faungfupong; Pipat Weerathaworn; Somchai Piyapantavanon; Kunya Chaupun; Punnipa Phrachya; Porn Rungchang.
4 tables
Palavras-chave: Corn; Maize; Production; Seed bed preparation; Fertilizers; Weeds; Aflatoxins; Water stress; ข้าวโพด; การผลิต; การเตรียมดิน; ปุ๋ย; วัชพืช; การขาดน้ำ; อะฟลาทอกซิน.
Ano: 1984
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4466

Comparison of aflatoxin detection by ELISA and TLC
Provedor de dados: Thai Agricultural Research Repository
Autores: Pranee Hamelink; Chintana Chana; Ronnapop Bunjoedchoedchu; Chiradej Chamswarng.
8 tables
Palavras-chave: Corn; Maize; Peanuts; Aflatoxins; Elisa method; TLC method; ข้าวโพด; ถั่วลิสง; อาหารสัตว์; อะฟลาทอกซิน; อีไลซา; ทีแอลซี.
Ano: 1990
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4303

Control of aflatoxin in corn by using a mould inhibitor myco-curb
Provedor de dados: Thai Agricultural Research Repository
Autores: Udom Pupipat; Prachum Jutawantana; Pansak Pittipornchai; Chaiwat To-anan; Chamaiporn Kittithamkul; Porntip Ucharatana.
1 table
Palavras-chave: Corn; Maize; Aflatoxins; Mould inhibitor; Myco curb; ข้าวโพด; อะฟลาทอกซิน; สารยับยั้งเชื้อรา.
Ano: 1987
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4254

Use of plant extract for the control of Aspergillus flavus and aflatoxin in maize
Provedor de dados: Thai Agricultural Research Repository
Autores: Chintana Chana; Pranee Hamelink; Chiradej Chamswarng; Ronnapop Bunjoedchoedchu.
6 tables
Palavras-chave: Corn; Maize; Fungi; Aflatoxins; Aspergillus flavus; Plant extracts; ข้าวโพด; สารสกัดจากพืช; แอสเปอร์จิลลัส; อะฟลาทอกซิน; การควบคุม.
Ano: 1989
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4368

การป้องกันการเกิดสารพิษอฟลาทอกซินในข้าวโพดด้วยสารเคมี Luprosil NC
Provedor de dados: Thai Agricultural Research Repository
Palavras-chave: Corn; Maize; Aflatoxins; Luprosil NC; Fungi; Minicolumn chromatography; ข้าวโพด; อะฟลาทอกซิน; การป้องกันด้วยสารเคมี; เชื้อราในโรงเก็บ.
Ano: 1984
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4482

สาเหตุการเกิดสารพิษอฟลาทอกซินในข้าวโพด
Provedor de dados: Thai Agricultural Research Repository
6 ill., 8 tables
Palavras-chave: Corn; Maize; Aflatoxins; Fungi; ข้าวโพด; เชื้อรา; อะฟลาทอกซิน.
Ano: 1984
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4486

อิทธิพลของฤดูปลูกที่มีผลต่อชนิด ปริมาณของเชื้อราในโรงเก็บและสารพิษอฟลาทอกซินในเมล็ดข้าวโพดที่มีระดับความชื้นภายในเมล็ดต่าง ๆ กัน
Provedor de dados: Thai Agricultural Research Repository
4 tables
Palavras-chave: Corn; Maize; Moisture content; Aflatoxins; Fungi; ข้าวโพด; ฤดูปลูก; เชื้อราในโรงเก็บ; ความชื้น; อะฟลาทอกซิน.
Ano: 1984
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4483

นโยบายการตลาดข้าวโพด-ข้าวฟ่าง
Provedor de dados: Thai Agricultural Research Repository
Palavras-chave: Corn; Maize; Production; Marketing policies; Aflatoxins; White grain sorghum; Red grain sorghum; ข้าวโพด; ข้าวฟ่าง; การผลิต; การตลาด; นโยบายการตลาด; อะฟลาทอกซิน.
Ano: 1984
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4452

การควบคุมเชื้อรา Aspergillus flavus ที่สร้างสารพิษอฟลาทอกซินในข้าวโพดโดยชีววิธี ตอนที่ 1 การคัดเลือกการเป็น antagonist ของจุลินทรีย์บางชนิดต่อเชื้อรา Aspergillus flavus
Provedor de dados: Thai Agricultural Research Repository
2 tables
Palavras-chave: Corn; Maize; Aspergillus flavus; Aflatoxins; Biological control; Aflatoxin-producing fungus; ข้าวโพด; เชื้อรา; แอสเปอร์จิลลัส; อะฟลาทอกซิน; จุลินทรีย์; แอนทาโกนิสท์.
Ano: 1986
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4408

Studies on relationship of kernel moisture contents percentage of fungi and aflatoxin concentration on preharvest maize kernels
Provedor de dados: Thai Agricultural Research Repository
Autores: Chintana Chana; Pranee Hamelink; Chiradej Chamswarng; Somsiri Sangchote; Udom Pharungsang; Ronnapop Bunjoedchoedchu; Unnop Ongsakul.
6 tables
Palavras-chave: Corn; Maize; Pre-harvest; Kernel moisture content; Fungi; Aflatoxins; ข้าวโพด; ความชื้นเมล็ด; เชื้อรา; อะฟลาทอกซิน.
Ano: 1987
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4256

Incidence of aflatoxins in pre and post harvested corn
Provedor de dados: Thai Agricultural Research Repository
Autores: Prisnar Hemsuchi; Arunsri Wong-Urai; Dara Buangsuwon.
2 tables
Palavras-chave: Corn; Maize; Aflatoxins; Pre-harvest; Post-harvest; Fungi; ข้าวโพด; อะฟลาทอกซิน; วิทยาการก่อนการเก็บเกี่ยว; วิทยาการหลังการเก็บเกี่ยว; เชื้อรา.
Ano: 1981
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4051

การใช้สารเคมีป้องกันและกำจัดสารพิษแอฟลาทอกซินในข้าวโพด
Provedor de dados: Thai Agricultural Research Repository
1 table
Palavras-chave: Corn; Maize; Aflatoxins; Corn quality; ข้าวโพด; อะฟลาทอกซิน; สารเคมีกำจัดเชื้อรา; คุณภาพ.
Ano: 1986
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4407

การตรวจเชื้อราที่สร้างสารพิษอฟลาทอกซินและการใช้สารเคมีควบคุม
Provedor de dados: Thai Agricultural Research Repository
Palavras-chave: Corn; Maize; Aflatoxins; Fungi; Fungicides; Aspergillus flavus; ข้าวโพด; เชื้อรา; อะฟลาทอกซิน; สารเคมีกำจัดเชื้อรา.
Ano: 1984
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4484

Commercial scale experiment on exploitation of chemicals for inhibiting growth of Aspergillus flavus
Provedor de dados: Thai Agricultural Research Repository
Autores: Prawat Tonboon-Ek; Dara Buangsuwon; Kanjana Bhudhasamai; Somkiat Titatarn.
Palavras-chave: Corn; Maize; Aflatoxins; Fungicides; Seed; Propionic acid; Ammonium bis propionate; ข้าวโพด; สารกำจัดเชื้อรา; แอสเปอร์จิลลัส.
Ano: 1985
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4577

Control of Aspergillus flavus and aflatoxin contamination in high moisture maize using carbondioxide and nitrogen fumigation
Provedor de dados: Thai Agricultural Research Repository
Autores: Werawat Nilrattanakoon; Wanpen Srithongchai; Akom Summataya; Amnat Chinchet; Amnuay Tongdee.
2 ill., 10 tables
Palavras-chave: Corn; Maize; Aspergillus flavus; Aflatoxins; Carbondioxide fumigation; Nitrogen fumigation; ข้าวโพด; อะฟลาทอกซิน; แอสเปอร์จิลลัส; ความชื้นของเมล็ด; การรมเมล็ด.
Ano: 1992
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4506

Studies on aflatoxin on newly-harvested maize kernels with various levels of moisture contents and effect of maize varieties on post-harvest aflatoxin concentration
Provedor de dados: Thai Agricultural Research Repository
Autores: Chintana Chana; Pranee Hamelink; Chiradej Chamswarng; Somsiri Sangchote; Udom Pharungsang; Ronnapop Bunjoedchoedchu; Unnop Ongsakul.
3 ill., 2 tables
Palavras-chave: Corn; Maize; Post-harvest; Kernel moisture content; Fungi; Aflatoxins; ข้าวโพด; ความชื้นเมล็ด; เชื้อรา; อะฟลาทอกซิน.
Ano: 1987
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4257

ตลาดข้าวโพดส่งออกของไทยและการปรับปรุงคุณภาพ
Provedor de dados: Thai Agricultural Research Repository
7 tables
Palavras-chave: Corn; Maize; Export market; Quality improvement; Aflatoxins; ข้าวโพด; การส่งออก; การตลาด; การปรับปรุงคุณภาพ.
Ano: 1984
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4453

Cropping system : A system for minimizing aflatoxin contamination
Provedor de dados: Thai Agricultural Research Repository
Autores: Supot Faungfupong; Pipat Weerathaworn; Komson Nakornsri.
3 tables
Palavras-chave: Corn; Maize; Aflatoxins; Cropping systems; Sorghum; Castor bean; Soybeans; Mungbeans; Peanuts; Sesame; Sunflower; ข้าวโพด; อะฟลาทอกซิน; ระบบการปลูกพืช.
Ano: 1985
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4594

Rapid detection of aflatoxin by serological methods (Project No. 13)
Provedor de dados: Thai Agricultural Research Repository
Autores: Chintana Chana; Pranee Hamelink; Chiradej Chamswarng; Ronnapop Bunjoedchoedchu.
6 tables
Palavras-chave: Peanut products; Fungi; Aflatoxins; Serological method; Rapid detection; ผลิตภัณฑ์ถั่วลิสง; อะฟลาทอกซิน; การตรวจสอบอย่างรวดเร็ว.
Ano: 1989
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4367

Control of aflatoxins in maize by Luprosil NC
Provedor de dados: Thai Agricultural Research Repository
Autores: Chalermlarb Chuaiprasit; Chintana Chana; Somsiri Sangchote; Ronnapop Bunjoedchoedchu.
5 tables
Palavras-chave: Corn; Maize; Aflatoxins; Luprosil NC; Fungi; ข้าวโพด; อะฟลาทอกซิน; เชื้อรา.
Ano: 1985
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4583

Incidência fúngica e contaminações por micotoxinas em grãos de híbridos comerciais de milho em função da umidade de colheita - DOI: 10.4025/actasciagron.v31i4.5690
Provedor de dados: Acta Scientiarum: Agronomy
Autores: Marques, Odair José; UEM; Vidigal Filho, Pedro Soares; UEM; Dalpasquale, Valdecir Antoninho; UEM; Scapim, Carlos Alberto; UEM; Pricinotto, Luiz Fernando; UEM; Machinski Júnior, Miguel; UEM.
O objetivo deste trabalho foi avaliar a incidência de fungos dos gêneros Aspergillus, Fusarium e Penicillium e as contaminações com micotoxinas em grãos de cinco híbridos comerciais de milho em função da umidade de colheita. O trabalho foi conduzido em Astorga, Estado do Paraná, durante o período da ‘safrinha’ de 2007 e da safra de ‘verão’ de 2007/2008. As amostras de grãos, colhidas em cinco épocas distintas e em cinco repetições, foram submetidas à determinação de umidade pelo método da estufa a 103 &amp;plusmn; 1ºC por 72h. O teste de sanidade Blotter test e a quantificação micotoxinas (método da cromatografia em camada delgada) foram efetuados, utilizando-se um delineamento inteiramente casualizado. Os resultados obtidos foram submetidos à análise de...
Tipo: Pesquisa Empírica de Campo
Palavras-chave: 5.01.03.04-0    Produção de Mudas Zea mays L.; Pós-colheita; Qualidade; Aflatoxinas; Zearalenona Fitotecnia Zea mays L.; Post-harvest; Quality; Aflatoxins; Zearalenone.
Ano: 2009
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/5690

Comparison of thin-layer chromatography, spectrofluorimetry and bright greenish-yellow fluorescence test for aflatoxin detection in corn
Provedor de dados: Brazilian Archives of Biology and Technology
Autores: Ono,Elisabete Yurie Sataque; Silva,Marcelo da; Ribeiro,Ricardo Marcelo Reche; Ono,Mario Augusto; Hayashi,Luciana; Garcia,Glauco Tironi; Hirooka,Elisa Yoko.
In this study the bright greenish-yellow fluorescence test, widely used by the corn milling industry, was compared to the thin-layer chromatography (TLC) and spectrofluorimetry methods for aflatoxin detection in 40 corn samples naturally contaminated by the Aspergillus section Flavi. According to the corn processing industry criteria, all the samples were adequate for human and animal consumption by the bright greenish-yellow fluorescence test, but TLC and spectrofluorimetry analysis detected aflatoxins above the maximum tolerated limit (20 µg/kg) in 7 and 8 samples, respectively. Aflatoxins were detected in 16 (40%) corn samples by TLC, with levels ranging from 4.0 to 54.0 µg/kg (mean 19.97 ± 15.97 µg/kg), and in 25 (62.5%) samples by spectrofluorimetry,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Thin-Layer Chromatography; Spectrofluorimetry; BGYF; Aflatoxins; Corn; Mycotoxins.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000300025

Interaction of strains of non-toxigenic Aspergillus flavus with Aspergillus parasiticus on aflatoxin production
Provedor de dados: Brazilian Jounarl of Veterinary
Autores: MARTINS,Hermínia Marina; MARTINS,Maria Lígia; BERNARDO,Fernando Almeida.
Aflatoxins production is affected by abiotic, biotic and genetic parameters. Eugenesic and dysgenetic condition for aflatoxinogenesis are relatively well studied, such as: the influence of temperature, pH, Aw, Oxigen tension, osmotic pression, organic and inorganic nutrients, substance with fungistatic effects: however there are relatively few knowledge about endogenous regulator mechanisms, the kinetic of the anabolism and the interaction between the productive moulds and remaining microflora holding in eutrophying substrates. The main objective of this study is to evaluate biotic interaction between five indigenous strains of A. flavus, confirmed non-toxigenic, and a productive strain (A. parasiticus ATCC 15 517), cultured simultaneously on two...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Plant interaction; Aflatoxins; Vegetal production; Aspergillus flavus; Aspergillus parasiticus.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-95962000000600003

Effect of citrinin and in association with aflatoxin B1 on the infectivity and proliferation of Toxoplasma gondii in vitro
Provedor de dados: Brazilian Journal of Infectious Diseases
Autores: Herzog-Soares,Joanna D'Arc A; Freire,Ronald Bastos.
Macrophages exposed to 10 mug/mL citrinin (CTR) or 0.01 mug CTR mixed with 0.04 mug aflatoxin B1 (AFB1) for a period of 2 h at 37ºC, were infected with 10(6) Toxoplasma gondii tachyzoites/muL. The parasites were treated with mycotoxins (2 h at 37ºC) before being added to the macrophage culture. The number of tachyzoites was quantified 2, 24, 48, 72 and 96 h after infection. During the first 2 hours, 59% infectivity was observed in the control. After exposure to CTR or the mixture of toxins (CTR-AFB1), macrophages were infected with 77.5% and 75% of the inoculated tachyzoites, respectively. Similarly, 72.3% of the cells were infected when cultured together with previously treated parasites. The treatment with CTR-AFB1 gave rise to 2.9 times more tachyzoites...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aflatoxins; Imunossuspression; Macrophages; Citrinin; Toxoplasma gondii.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702004000100007

Biflavonoids inhibit the production of aflatoxin by Aspergillus flavus
Provedor de dados: Brazilian Journal of Medical and Biological Research
Autores: Gonçalez,E.; Felicio,J.D.; Pinto,M.M.
The biflavonoids 6,6"-bigenkwanin, amenthoflavone, 7,7"-dimethoxyagastisflavone and tetradimethoxybigenkwanin isolated from Ouratea species were tested for inhibitory activity on Aspergillus flavus cultures. Suspensions of Aspergillus flavus spores were inoculated into 50 ml of YES medium at different biflavonoid concentrations: 5 and 10 µg/ml for 6,6"-bigenkwanin, amenthoflavone and 7,7"-dimethoxyagastisflavone, and 5, 10, 15 and 20 µg/ml for tetradimethoxybigenkwanin. The four biflavonoids showed inhibitory activity on aflatoxin B1 and B2 production (P&lt;0.001), but did not inhibit fungal growth at the concentration tested (P&gt;0.05). These results show that biflavonoids can be used for the development of agents to control aflatoxin production.
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Ouratea sp; Aspergillus flavus; Biflavonoids; Aflatoxins.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2001001100013

Distribution of aflatoxins in corn fractions visually segregated for defects
Provedor de dados: Brazilian Journal of Microbiology
Autores: Piedade,Fabiana Segatti; Fonseca,Homero; Gloria,Eduardo Micotti da; Calori-Domingues,Maria Antonia; Piedade,Sônia Maria Stefano; Barbin,Décio.
The aflatoxin distribution in corn fractions obtained after visual segregation for defects in 30 samples, known to be contaminated, was studied. Each sample was passed through a 5.0 mm round holes sieve, graded for defects and then segregated in sound kernels (regular kernels) and non-sound kernels (injured, germinated, fermented, moldy, heated, insect damaged, immature, broken, hollow, fermented up to ¼, discolored, extraneous materials, and injured by other causes), as defined by the Brazilian Official Grading rules for corn. The non-sound kernels showed the highest contamination levels in all samples. The contamination levels of non-sound kernels (20% of total weight) ranged from 23 to 1,365 µg/kg of aflatoxins (B1, B2, G1 and G2) and were higher than...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aflatoxins; Corn; Contamination distribution; Visual segregation; Fraction.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822002000300013

Mycoflora and aflatoxin/fumonisin production by fungal isolates from freshly harvested corn hybrids
Provedor de dados: Brazilian Journal of Microbiology
Autores: Almeida,Adriana P.; Corrêa,Benedito; Mallozzi,Marisa A. B.; Sawazaki,Eduardo; Soares,Lúcia M. Valente.
The mycoflora of 3 hybrids of freshly harvested corn grains collected from three regions of the state of São Paulo, Brazil (Assis, Capão Bonito and Ribeirão Preto) was investigated. A total of 66 samples were analyzed focusing on the influence of abiotic factors (moisture content, water activity, temperature and rainfall) on both the prevalence of Aspergillus flavus and Fusarium moniliforme, and the ability of these genera isolates to produce aflatoxins and fumonisins, respectively. In the three surveyed regions, the fungal population comprised mainly Fusarium spp., Penicillium spp., Aspergillus spp. and 2 others filamentous fungal genera, which were isolated from corn kernels showing water activity of 0.30 to 0.99 and moisture content of 5.0% to 20.2%....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aflatoxins; Aspergillus flavus; Fumonisins; Fusarium moniliforme; Corn.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822000000400016

The relationship between fungi growth and aflatoxin production with ergosterol content of corn grains
Provedor de dados: Brazilian Journal of Microbiology
Autores: Castro,Maria Fernanda Penteado Moretzsohn de; Bragagnolo,Neura; Valentini,Sílvia Regina de Toledo.
The relationships between fungal growth and ergosterol content and between aflatoxins B1 and B2 production and ergosterol content were verified in corn grains. In the first experiment, fungal growth and ergosterol content were monitored during incubation of corn grains presenting water activities of 0.85a w and 0.92a w at 25ºC over a period of 18 days. For the Taiúba variety, the fungi growth and ergosterol content increased more rapidly for 0.92a w than 0.85a w. Maximum ergosterol levels were 2.8 and 4.6 µg/g, respectively, for 0.85a w and 0.92a w. For the Cargill hybrid 606, a more pronounced increase in fungal growth was verified just at the end of the incubation period, mainly for 0.92a w when an acentuated increase in ergosterol content was also...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Corn grains; Ergosterol; Fungal growth; Aflatoxins.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822002000100004

Oral administration of piperine for the control of aflatoxin intoxication in rats
Provedor de dados: Brazilian Journal of Microbiology
Autores: Gagini,Thalita B.; Silva,Robson E.; Castro,Isabela S.; Soares,Breno A.; Lima,Marco E.F.; Brito,Marilene F.; Mazur,Carlos; Direito,Glória M.; Danelli,Maria das Graças M.
Aflatoxins are mycotoxins that have important toxic effects on human and animal health, even if consumed at low doses. The oral administration of piperine (1.12 mg/kg) during 23 days in rats seemingly interfered with the toxicity of aflatoxins, decreasing hepatic injuries and the leukocyte depletion in experimentally intoxicated animals.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aflatoxins; Piperine; Experimental intoxication; Rats.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822010000200013

Aflatoxin M1 in the urine of non-carriers and chronic carriers of hepatitis B virus in Maringa, Brazil
Provedor de dados: Brazilian Journal of Pharmaceutical Sciences
Autores: Giolo,Marcel Padovani; Oliveira,Christiane Minervino de; Bertolini,Dennis Armando; Lonardoni,Maria Valdrinez Campana; Gouveia,Matheus Sampaio; Netto,Daisy Pontes; Nixdorf,Suzana Lucy; Machinski Junior,Miguel.
Exposure to aflatoxins (AFs) in the diet may favour the development of hepatocellular carcinoma (HCC) and the acute exacerbation of hepatitis in chronic hepatitis B virus (HBV) carriers. Measurement of biomarkers such as aflatoxin M1 (AFM1), a metabolite of aflatoxin B1 (AFB1), in urine allows for the assessment of populations exposed to aflatoxins. The aim of this study was to investigate the occurrence of aflatoxin M1 in the urine of HBV carrier and non-carrier patients. One group included 43 randomly selected HBV carriers treated at two hospitals in the city of Maringa, Brazil, from March to June 2008. Control group consisted of 29 healthy adult volunteers with anti-HBs positive and HBsAg negative test results. Detection of AFM1 was performed by...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aflatoxins; Biomarkers; Hepatitis B; Hepatocellular carcinoma; Urina/análise toxicológica; Epidemiology.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502012000300011

Occurrence and exposure assessment to aflatoxins in peanuts commercialized in the northwest of Parana, Brazil
Provedor de dados: Ciência Rural
Autores: Santos,Alini Cristini dos; Souza,Aline Amenencia de; Silva,Milena Veronezi; Nerilo,Samuel Botião; Souza,Alexandra Perdigão Maia de; Bando,Érika; Machinski Junior,Miguel.
ABSTRACT:  Peanuts are a nutritious food consumed worldwide. Some species of the genus Aspergillus, producers of aflatoxins, colonize peanuts. Human exposure to aflatoxins occurs by ingesting contaminated foods. The objective of this paper was to assess the occurrence and dietary exposure of the population to aflatoxins in peanuts commercially available in Maringa, Brazil, from May 2013 to April 2017. A total of 104 peanut samples were evaluated by thin-layer chromatography and confirmed by derivatization with trifluoroacetic acid. The contamination rate detected was 24.0% in average concentration of 13.4µg/kg. Twenty positive samples (19.2%) exceeded the maximum level permitted in Brazil for the sum of four aflatoxins. Estimated probable daily intake was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aflatoxins; Aspergillus flavus; Peanuts; Risk assessment; Public health.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000600750

Effect of powdered spice treatments on mycelial growth, sporulation and production of aflatoxins by toxigenic fungi
Provedor de dados: Ciência e Agrotecnologia
Autores: Chalfoun,Sára Maria; Pereira,Marcelo Cláudio; Resende,Mario Lúcio V.; Angélico,Caroline Lima; Silva,Rozane Aparecida da.
The effect of ten powdered spice plants was evaluated at the concentration of 1, 2, 3 and 4% to observe the mycelial growth and sporulation of Aspergillus niger and Eurotium repens. The spices were added to the culture media PDA and CYA20S. Clove completely inhibited the mycelial growth of the tested fungi. The other spices: cinnamon, garlic, thyme, mint, anis, oregano and onion were, in a decreasing order, promising antifungals. Bay leaf and basil did not show a pronounced fungistatic effect. The antitoxigenic potential of the spices was tested against one aflatoxin-producing strain of AspergiIIus flavus. The spices were tested at the same concentrations previously mentioned and were added to the culture medium YES, appropriate for the production of those...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Spices; Aflatoxins; Control; Fungi.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542004000400018