บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Alternaria mycotoxins in black rot lesion of tomato fruit: conditions and regulation of their production.

Hasan, H. A. H.;

Mycopathologia Year: 1995 Vol: 130 Issue: 3 Pages: 171-177 Ref: 16 ref.

1995

บทคัดย่อ

Alternaria mycotoxins in black rot lesion of tomato fruit: conditions and regulation of their production.

 

Alternaria represents the most common postharvest decay organism of tomato fruits. The prevalent type of decay, black rot lesion, is caused by A. alternata. The main natural mycotoxins produced in rotted tomatoes are alternariol (AOH), alternariol monomethyl ether (AME) and tenuazonic acid (TA). Altertoxin I and II (AT-I and AT-II), in addition to AOH, AME and TA were produced by Egyptian A. alternata isolates in a synthetic medium. The opt. temp. for toxin production by A. alternata IMI 89344 was 28 deg C for AOH and AME, 21 deg for TA, and 14 deg for AT-I and AT-II. Growth and toxin production occurred at noticeable levels at 7 deg , but dropped at 35 deg . Growth and toxin production were inhibited by 500 p.p.m. cinnamon [Cinnamomum sp.] oil in YES-Czapeks medium and in a tomato homogenate and it is suggested that it could be used as a preservative in processed tomato products.