In this study, the effect of methyl jasmonate (MeJA) treatments (10-3 and 10-5 M) and two different storage locations such as Ankara and Taşköprü, on some quality parameters, such as weight loss, L* values, soluble solids content, firmness, titratable acidity, total phenolic content, antioxidant capacity, vitamin C and allicin content in garlic bulbs (Allium sativum cv. 'Taşköprü') were investigated during a storage period of six months with three replications (30 bulbs or 120 g cloves). Based on storage periods, storage locations and MeJA treatment effects, the results showed that the storage period significantly affected all parameters except allicin content. MeJA treatments positively affected weight loss, L* values, soluble solids content, total phenolics, and antioxidant capacity. At the end of the storage, the lowest weight loss was determined in 10-3 M MeJA as 7.8%, the highest L* value was 85.40 (10-5 M) and soluble solids content was maintained in 10-5 M MeJA (40.26%). Higher total phenolics and antioxidant capacity were found in 10-3 M MeJA (24.44 mg 100g-1) and 10-5 M MeJA (66.88% I), respectively. Moreover, warehouse location significantly affected L* values, titratable acidity, total phenolics While Ankara location caused the highest L* (86.07), total phenolics (26.12 mg 100g-1), and delayed increase in titratable acidity (0.89% citric acid) in samples, the highest values in allicin content (31.42 mg kg-1) was determined in samples stored in the Taşköprü location. Overall, MeJA treatment could be considered as promising treatment for long-term storage of bulbs in commercial warehouses.
Allicin, Allium sativum L., antioxidant capacity, methyl jasmonate, postharvest, quality
AKAN, SELEN and GÜNEŞ, NURDAN TUNA
"Potential effects of storage period, warehouse locations, and methyl jasmonate in long-term stored garlic bulbs,"
Turkish Journal of Agriculture and Forestry: Vol. 45:
1, Article 7.
Available at: https://journals.tubitak.gov.tr/agriculture/vol45/iss1/7