Ochratoxins

The ochratoxins were isolated and characterized from Aspergillus ochraceus (Fig. 6.1 (255)) in 1965 (256,257). [Pg.61]

These compounds were found to be important mycotoxin constituents of Aspergillus species shortly after the discovery of the aflatoxins (see Chap. 2.). The ochratoxins are isocoumarin derivatives coupled with p-phenylalanine. The major representatives of this class of pentaketides are shown in Fig. 6.2. Ochratoxin B (324) is the dechloro analog of ochratoxin A (323), which is the most important member of this group with respect to its toxicity. The corresponding methyl and ethyl esters of ochratoxin A (323) and B (324) were found also in Aspergillus species and the ethyl ester of ochratoxin A (323) has been named ochratoxin C (325). Ochratoxin a (326) is a free carboxylic acid that represents the dihydroi-socoumarin nucleus of ochratoxin A (323). [Pg.61]

Blase et al.. The Chemistry of Mycotoxins, Progress in the Chemistry of Organic Nalraal Products, Vol. 97, DOI 10.1007/978-3-7091-1312-7 6, [Pg.61]

Aflatoxins, ochratoxin A, sterigmatocystine, penicillic acid, patulin... [Pg.69]

Ochratoxin A, citrinin, penicillic acid, sterigmatocystine, zearalenone... [Pg.69]

Note The natural fluorescence colors of some flavonoids [7, 9] and anthracene derivatives [16] are altered by the ammonia treatment. This makes possible differentiation on the basis of color. Detection limits per chromatogram zone have been reported of 2 ng for morphine and heroin [2], 6 ng for ochratoxin A [5] and 1 pg for penicillic acid [13]. [Pg.167]

Ochratoxin A 69,147,166,167 Oieanolic acid 59,60 Oleanonic acid 59,60,70 -, methyl ester 70 Olefins 359 Oleic acid 73, 89 Oligogalacturonic acids 45, 322 Oligonucleotides 76... [Pg.238]

Gallaz, L., Stalder, R., Ochratoxin A in Coffee, Chem. Mikrobiol. Technol. Lebensm., 4, 147, 1976. (CA84 178507t)... [Pg.168]

De Palo, D., Gabucci, G., Valussi, S., Study on the possible presence of aflatoxin, sterigmatocystine and ochratoxin in green coffee, Colloq. Sci. Int. Cafe, 8, 539, 1977. (CA92 162258s)... [Pg.168]

Studer-Rohr, I, Dietrich, D. R., Schlatter, J., Schlatter. C., The occurrence of ochratoxin A in coffee, Food Chem. Toxicol., 33(5), 341, 1995. (CA123 8219g)... [Pg.168]

Deoxynivalenol (DON) Alternariol (AOH) Ergot alkaloids Ochratoxin A (OTA) Aflatoxin B1... [Pg.354]

Ochratoxin A (OTA) is a my cotoxin produced by some species of Penicillium and Aspergillus. It is nephrotoxic to all animal species tested and the causal agent of mycotoxic porcine nephropathy (Krogh, 1978). It was previously associated with the human renal disorder, Balcan endemic nephropathy (BEN), and tumours of the urinary tract (Pfohl-Leszkowicz et al., 2002). Recently, another endemic kidney disease (Tunisian chronic interstitial nephropathy, CIN) was linked to OTA-contaminated food (Creppy, 1999 Wafa et al.,... [Pg.356]

Deoxynivalenol Nivalenol Zearalenone T-2 toxin Moniliformin Ochratoxin A Aflatoxins... [Pg.359]

Axberg K, Jansson G, Svensson G and Hult K (1997), Varietal differences in accumulation of ochratoxin Ain barley and wheat cultivars after inoculation of Penicillium verrucosum, Acta Agric. Scand., 47, 229-237. [Pg.382]

Birzele B, Prange A and Kramer J (2000), Deoxynivalenol and ochratoxin A in German wheat and changes of level in relation to storage parameters , Food Addit. Contam., 17 (12), 1027-1035. [Pg.383]

Blank G, Goswami N, Madrid F, Marquardt R R and Frohlich A A (1995), Evaluation of Trifolium castaneum (Herbst) (Coleoptera Tenebrionidae) excreta on ochratoxin production in stored wheat , J. Stored Products Res., 31, 151-155. [Pg.383]

Boorman G A (1989), Toxicology and carcinogenesis of ochratoxin A , (CAS NO. 303-47-9) in F344/N Rats (Gavage studies), 358. US Department of Health and Human Services, National Toxicology Programme, Technical Report Series, Research Triangle Park, NC 27709. [Pg.383]

Bilchmann N B and Hald B (1985), Analysis, occurrence and control of ochratoxin A residues in Danish pig kidneys , Food Addit. Contam., 2, 193-199. [Pg.383]

Czerwiecki L, Czajkowska D and Witkowska-Gwiazdowska A (2002a), On ochratoxin A and fungal flora in Polish cereals from conventional and ecological farms. Part 2 Occurrence of ochratoxin A and fungi in cereals in 1998 , Food Addit. Contam., 19, 1051-1057. [Pg.383]

EC (European Commission) (2004a), Commission regulation (EC) No 683/2004 of 13 April 2004 amending regulation (EC) No 466/2001 as regards aflatoxins and ochratoxin A in foods for infants and young children , Official J. Europ. Union, L106, 3-5. [Pg.384]

See also in sourсe #XX -- [ Pg.235 ]

See also in sourсe #XX -- [ Pg.695 ]

See also in sourсe #XX -- [ Pg.76 ]

See also in sourсe #XX -- [ Pg.15 , Pg.387 , Pg.388 ]

See also in sourсe #XX -- [ Pg.15 , Pg.387 , Pg.388 ]

See also in sourсe #XX -- [ Pg.382 , Pg.387 , Pg.388 ]

See also in sourсe #XX -- [ Pg.656 ]

See also in sourсe #XX -- [ Pg.51 ]

See also in sourсe #XX -- [ Pg.61 ]

See also in sourсe #XX -- [ Pg.2 ]

See also in sourсe #XX -- [ Pg.2 , Pg.11 ]

See also in sourсe #XX -- [ Pg.536 ]

See also in sourсe #XX -- [ Pg.135 , Pg.399 ]

See also in sourсe #XX -- [ Pg.942 , Pg.948 ]

Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...