Weldegebriel et al. 2025 — Packaged Fruit Juice Metals For Children
Summary
This peer-reviewed study measured cadmium, lead, chromium, and nickel in 80 packaged fruit juice samples commonly consumed by children in Gondar city, Ethiopia. It is relevant to Category 1 fruit juice, but it includes multiple packaging formats, including canned strawberry juice, so not-canned values must be filtered before standards math.
Key Numbers
| Scope | Metal | N | Statistic type | Reported value | Approximate ppb equivalent | Table/section |
|---|---|---|---|---|---|---|
| Packaged fruit juices | Nickel | 80 | range and median | range 0.0025-0.08 mg/L; median 0.078 mg/L | range 2.5-80 ppb; median 78 ppb | Abstract and Table 5 |
| Packaged fruit juices | Cadmium | 80 | range and median | range 0.01-0.1 mg/L; median 0.08 mg/L | range 10-100 ppb; median 80 ppb | Abstract and Table 5 |
| Packaged fruit juices | Lead | 80 | range and median | range 0.01-0.04 mg/L; median 0.035 mg/L | range 10-40 ppb; median 35 ppb | Abstract and Table 5 |
| Mango juice | Nickel | not extracted | median by fruit type | 0.034 mg/L | 34 ppb | Table 6 |
| Pineapple juice | Nickel | not extracted | median by fruit type | 0.07 mg/L | 70 ppb | Table 6 |
| Strawberry juice | Nickel | not extracted | median by fruit type | 0.062 mg/L | 62 ppb | Table 6 |
| Cocktail juice | Nickel | not extracted | median by fruit type | 0.0565 mg/L | 56.5 ppb | Table 6 |
Methods Brief
The study used wet acid digestion and flame atomic absorption spectroscopy. Samples were analyzed in triplicate, and the paper reports recovery, RSD, LOQ, and LOD metrics.
Limitations
The locked HMTc row is fruit juice not canned, but this study includes canned, glass, carton, and tetra-pack products. The source is useful for nickel occurrence and packaging-variance context; it needs packaging-level filtering before p90 or p100 work for the not-canned row.
Implications
Certification: Useful candidate evidence for fruit juice nickel once canned products are excluded.
Courses: Useful example of why the product scope and packaging scope must be split before standards math.
App: Supports fruit-type and packaging-type risk features after row-level extraction.
Microbiome: No direct microbiome endpoint.