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Titolo:
The superiority of organically cultivated vegetables to general ones regarding antimutagenic activities
Autore:
Ren, HF; Endo, H; Hayashi, T;
Indirizzi:
Tokyo Univ Fisheries, Dept Food Sci & Technol, Minato Ku, Tokyo 1088477, Japan Tokyo Univ Fisheries Tokyo Japan 1088477 Minato Ku, Tokyo 1088477, Japan Harbin Univ Commerce, Harbin 150076, Peoples R China Harbin Univ CommerceHarbin Peoples R China 150076 0076, Peoples R China
Titolo Testata:
MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS
fascicolo: 1-2, volume: 496, anno: 2001,
pagine: 83 - 88
SICI:
1383-5718(20010920)496:1-2<83:TSOOCV>2.0.ZU;2-N
Fonte:
ISI
Lingua:
ENG
Soggetto:
SALMONELLA-TYPHIMURIUM;
Keywords:
antimutagenecity; organic vegetables; forward mutation assay;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
5
Recensione:
Indirizzi per estratti:
Indirizzo: Hayashi, T Tokyo Univ Fisheries, Dept Food Sci & Technol, Minato Ku, Tokyo1088477, Japan Tokyo Univ Fisheries Tokyo Japan 1088477 Tokyo 1088477, Japan
Citazione:
H.F. Ren et al., "The superiority of organically cultivated vegetables to general ones regarding antimutagenic activities", MUT RES-GTE, 496(1-2), 2001, pp. 83-88

Abstract

We found organically cultivated (OC) vegetables, using a water-soluble chitosan as a soil improvement agent and leaf surface spray, had much longer shelf life and better taste than that of generally cultivated (GC) vegetables. The purpose of this study is to determine the relative antimutagenic activity between OC and GC vegetables. Eleven OC vegetables were harvested in March and April in 1999 and 2000, and GC ones were supplied as a control from nearby farms on the same date. The former vegetables were planted on thefield where no pesticide had been used for the last 3 years. Forward mutation test with Salmonella typhimurium TM677 and 8-azaguanine as a detection agent was used to determine the antimutagenic activity of juices prepared from OC and GC vegetables against authentic mutagens, such as 4-nitroquinoline oxide (4NQO), benzo(a)pyrene (BaP), and 3-amino-1-methyl-5H-pyrido[4,3-b]indole acetate (Trp-P-2). This microbiological test is a convenient methodto use for the food samples containing free histidine. Antimutagenic activity was evaluated by the difference of mutagenic activities between mutagenecity of authentic compounds and that observed upon incubation at 37 degreesC for 2 h with each vegetable juice. OC Chinese cabbage, carrot, Welsh onion, and Qing-gen-cai suppressed 37-93% of the mutagenic activity of 4NQO, while the GC ones were held down to 11-65%. Against BaP, three species of OCvegetables showed 30-57% antimutagenecity, while GC ones did only 5-30%. Similarly, the OC spinach decreased the activity of Trp-P-2 to 78%, and the GC suppressed it by 49%. (C) 2001 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 31/03/20 alle ore 16:02:59