Jurnal Kultivasi
Abstract
Shallots are a major horticultural commodity with high economic value. The quality of shallots is determined not only by the quantity of the harvest but also by physical characteristics such as bulb color, texture, and water content. This study aims to evaluate the differences in these physical parameters in three popular local cultivars: Brebes, Sumenep, and Tuktuk, harvested at 56, 63, and 70 days after planting (DAP), respectively. This research uses a Randomized Block Design consisting of 9 treatment combinations and analyzed using the SmartstatXL application. Color measurements are conducted using the CIELAB method and converted to CIELCH and RGB for color type identification. The texture of the tuber is measured using the Texture Analyzer MCT-2150W, while the water content is analyzed using the oven method. The study's results demonstrate a negative correlation between bulb texture and water content. Sumenep cultivar showed the lowest water content (77.57%) and highest texture (17.97 N) compared to others. Additionally, each cultivar displays significant color variations that correspond to differences in harvest maturity. The Brebes cultivar tuber changes from dark coffee to dark taupe, the Sumenep cultivar from mocha to beaver, and the Tuktuk cultivar from rose taupe to dark coffee. This means that the color has changed from dull and gray to bright and full. These findings provide practical guidance for determining the optimal harvest timing to preserve shallot quality during postharvest handling.
Recommended Citation
Lestari, Rahma Wati; Kusumiyati, Kusumiyati; and Mubarok, Syariful
(2025)
"Comparative analysis of color, texture, and water content in three shallot cultivars at different harvest ages,"
Jurnal Kultivasi: Vol. 24:
No.
3, Article 3.
Available at:
https://journal.unpad.ac.id/kultivasi/vol24/iss3/3