บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Antifungal compounds in the avocado fruit peel and their relation to anthracnose development.

Adikaram, N. K. B.; Egodawela, N. A.; Karunaratne, A.;

Acta Horticulturae Year: 1993 Issue: No. 343 Pages: 25-28 Ref: 7 ref.

1993

บทคัดย่อ

Antifungal compounds in the avocado fruit peel and their relation to anthracnose development.

Anthracnose disease in ripe avocados originates from latent infections with Colletotrichum gloeosporioides [Glomerella cingulata] at immature stages. Latency has been shown to be due to the presence of antifungal activity of the fruit peel. Three new antifungal principles, 1,2,4-trihydroxyheptadec-16-yne, 1,2,4-trihydroxyheptadec-16-ene and 1-acetoxy-2, 4-dihydroxyheptadec-16-ene, were isolated from the fruit peel. These three together with the two previously described diene and monoene constitute the total antifungal activity of the unripe fruit peel. All these compounds declined in concentration during ripening to non-toxic levels. The relative toxicity of the three compounds and their concentrations are discussed in relation to latency and lesion development during ripening.