Harvest month | December | February | ||
---|---|---|---|---|
Variety | Ishikunibu | Kugani | Ishikunibu | Kugani |
Vinegar volume (mL) | 33.2±0.4aA | 35.5±1.5aA | 36.7±1.4aA | 33.5±0.7aA |
Titratable acidity (%) | 4.70±0.1aA | 4.56±0.1aA | 4.83±0.1aA | 4.56±0.0bA |
Ascorbic acid (μg per mL) | 69.4±15.1aA | 41.0±1.3aA | 115.2±5.2aA | 38.9±2.2bA |
Polyphenols (μg per mL) | 185.1±2.0aA | 163.9±7.8aA | 191.7±8.9aA | 158.1±7.4aA |
ORAC (μmol TEx per mL) | 7.1±0.1aA | 4.9±0.8aA | 5.7±0.4aA | 5.1±0.4aA |
PMFs (mg per 100 mL) | 14.7±1.8aA | 33.4±0.2bA | 12.5±1.8aA | 29.0±0.7bB |
Sinensetin | 1.5±0.2aA | 2.5±0.1bA | 1.2±0.2aA | 2.0±0.1bB |
Nobiletin | 8.9±1.4aA | 20.8±0.6bA | 7.3±1.1aA | 19.2±0.8bA |
Tangeretin | 4.3±0.5aA | 10.0±0.6bA | 4.0±0.6aA | 7.8±0.3bB |
Limonin (mg per 100 mL) | 17.9±5.4aA | 46.4±7.4aA | 8.7±3.9aA | 28.3±5.1aA |
Monoterpenes (IS%)y | 9.1±3.3aA | 6.5±1.1aA | 5.1±1.4aA | 7.8±1.6aA |
β-myrcene | 0.3±0.2aA | 0.2±0.1aA | 0.1±0.1aA | 0.2±0.1aA |
Limonene | 3.8±1.5aA | 2.2±0.5aA | 2.2±0.6aA | 2.9±0.6aA |
γ-terpinen | 3.5±1.3aA | 2.7±0.4aA | 2.1±0.6aA | 3.3±0.7aA |
p-cymene | 1.4±0.7aA | 1.4±0.3aA | 0.7±0.3aA | 1.5±0.4aA |
Monoterpene alcohols (IS%)y | 1.3±0.1aA | 0.5±0.1bA | 0.6±0.2aB | 0.1±0.1bB |
Linalool | 0.6±0.1aA | 0.1±0.1bA | 0.1±0.1aB | 0.0±0.0bA |
Terpinen-4-ol | 0.5±0.1aA | 0.3±0.1bA | 0.3±0.1aA | 0.1±0.1aB |
α-Terpineol | 0.3±0.1aA | 0.1±0.1bA | 0.1±0.1aB | 0.0±0.0bB |
Sensory evaluation | ||||
Shikuwasa aroma | 2.67±0.32a | 3.00±0.28a | 3.00±0.23a | 2.44±0.28a |
Green smell | 4.56±0.23a | 3.67±0.39a | 3.67±0.39a | 3.44±0.23a |
Bitterness | 4.00±0.36ab | 3.44±0.32ab | 4.33±0.28a | 3.33±0.28b |
General flavor | 3.44±0.28a | 3.78±0.21a | 3.78±0.27a | 3.67±0.23a |
CIELAB color space | ||||
L* | 45.6±0.3aA | 51.6±1.1bA | 44.6±0.8aA | 48.9±0.9bA |
a* | 0.3±0.4aA | −3.0±0.2bA | 5.9±1.3aB | −1.0±0.4bB |
b* | 23.4±0.9aA | 26.1±1.3aA | 29.9±1.6aB | 28.4±0.3aA |
Harvest month | December | February | ||
---|---|---|---|---|
Variety | Ishikunibu | Kugani | Ishikunibu | Kugani |
PMFs (mg per g of DW) | 1.97±0.02aA | 4.20±0.18bA | 1.34±0.02aB | 3.70±0.05bB |
Sinensetin | 0.19±0.00aA | 0.28±0.1bA | 0.14±0.01aB | 0.26±0.01bB |
Nobiletin | 1.16±0.01aA | 2.49±0.11bA | 0.75±0.02aB | 2.33±0.03bA |
Tangeretin | 0.61±0.01aA | 1.43±0.06bA | 0.45±0.01aB | 1.11±0.02bB |
Limonin (mg per g of DW) | 1.48±0.01aA | 1.32±0.02bB | 1.21±0.01aB | 1.41±0.02bB |
Harvesting date | Variety | Fruit weight (g) | Fruit diameter (cm) | Moisture content (%) |
---|---|---|---|---|
December 13, 2018 | Ishikunibu | 29.7 | 4.27 | 85.6 |
Kugani | 43.6 | 4.66 | 87.0 | |
February 18, 2019 | Ishikunibu | 33.6 | 4.95 | 85.5 |
Kugani | 42.6 | 5.15 | 84.6 |