Table 1.
Concentration of MTPE in the Cucurbitaceous Familya
| variety | MTPE (μg/100 g) |
|---|---|
| Cucumis melo var. conomon | |
| Katsura-uri (fully ripened) | 3.8 (2.9–4.3) |
| Katsura-uri (midripened) | Ldlb |
| Shiro-uri | Ldlb |
| Cucumis melo var. makuwa | |
| Makuwa-uri | 0.6 (Ldl-1.8)c |
| Cucumis melo var. riticulatus | |
| muskmelon (red-fleshed) | 2.5 (1.0–3.6) |
| muskmelon (green-fleshed) | 1.1 (Ldl-1.7)c |
| Cucumis stativus | |
| cucumber | Ldlb |
| Benincasa hispida | |
| wax gourd | Ldlb |
a
Each value represents mean and range in parentheses of 2 to 13 different samples of the same variety: 10 of muskmelon (red-fleshed); 8 of muskmelon (green-fleshed); 4 of Katsura-uri (fully-ripened); 3 of Makuwa-uri; 2 of Katsura-uri (mid-ripened), Shiro-uri, cucumber and wax gourd.
b
Ldl means less than detection limit.
c
The average was calculated as the value of Ldl as zero.