Peanut Inspector Certification Practice Exam

What characteristics of A. Flavus may indicate advanced growth?

1. Large kernels

2. Minute balls

3. Color variation

4. Freezing damage

The correct answer is: Minute balls

Minute balls, also referred to as conidia or sclerotia, are a key characteristic of advanced growth in Aspergillus flavus. This fungus produces distinctive structures that can be indicative of its life cycle and reproductive capability. The presence of these minute balls suggests that the fungus is actively reproducing and has established itself in the environment, which can lead to increased contamination of peanut products. Understanding fungal growth characteristics is crucial for inspectors. When A. flavus is well established, its conidia can easily spread, leading to a higher likelihood of mycotoxin production, particularly aflatoxins, which are harmful to both health and economic stability. Recognizing minute balls is essential for identifying the severity of the fungal presence and taking appropriate actions to manage risk. The other characteristics listed may not directly indicate advanced growth of A. flavus. While large kernels, color variation, and freezing damage could relate to peanut quality or condition, they do not specifically signify the presence or stage of fungal growth. Therefore, minute balls serve as a clear and important indicator indicating the advanced growth stage of A. flavus.