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Contribution of Lean Management to Saffron (Crocus sativus L.) Harvesting: Preserving Stigma Quality through Optimal Timing of Flower Collection | ||
| Agrotechniques in Industrial Crops | ||
| مقالات آماده انتشار، پذیرفته شده، انتشار آنلاین از تاریخ 01 آبان 1405 اصل مقاله (482.05 K) | ||
| نوع مقاله: Original Article | ||
| شناسه دیجیتال (DOI): 10.22126/atic.2026.12901.1241 | ||
| نویسندگان | ||
| Hamid-Reza Fallahi* 1، 2؛ Mahsa Aghhavani-Shajari3؛ Hossein Sahabi4؛ Benyamin Shajari5؛ Hamed Kaveh4؛ Ferdinando Branca6 | ||
| 1Department of Plant Production and Genetics, Faculty of Agriculture, University of Birjand, Birjand, Iran | ||
| 2Plant and Environmental Stresses Research Group (PESRG), University of Birjand, Birjand, Iran | ||
| 3Department of Agrotechnology, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran | ||
| 4Saffron Institute, Department of Plant Production, Faculty of Agriculture, University of Torbat Heydarieh, Torbat Heydarieh, Iran | ||
| 5Department of Supply Chain, Purchasing and Project Management, Excelia Business School, France | ||
| 6Department of Agriculture, Food and Environment (Di3A), University of Catania, Italy | ||
| چکیده | ||
| One of the critical factors compromising the efficiency of the saffron supply chain is the precise timing of flower harvesting. While delayed harvesting is known to impact quality, existing studies offer contradictory findings regarding the specific intra-day temporal threshold. This study introduces a novel interdisciplinary approach, integrating Lean Management principles -specifically Value Stream Mapping (VSM) - with agronomic analysis to define harvest delays as a form of operational "waste." We aimed to determine the optimal harvesting window that preserves stigma quality without disrupting workflow. Results indicated that while delayed harvesting did not significantly reduce stigma yield, it critically affected quality parameters. Specifically, delaying harvest beyond six hours after sunrise caused a significant decline in safranal (57.45% reduction after nine hours) and crocin (53.9% reduction). This granular data resolves discrepancies in prior literature by identifying the precise "tipping point" where stability ends and degradation accelerates. In addition, chromatic parameters changed significantly: values for 'a' and the 'a/b' index increased, while 'L' and 'b' decreased. A strong correlation was observed between chemical content and color parameters, validating colorimetry as a robust Visual Management tool for rapid quality sorting. By quantifying the exact temporal limit for waiting time, this research fills a gap in perishable food logistics, providing farmers with actionable, science-based schedules to minimize waste and maximize nutritional value. | ||
تازه های تحقیق | ||
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| کلیدواژه‌ها | ||
| Crocin؛ Lean management؛ Medicinal plant؛ Safranal؛ Spice quality؛ Stigma colorimetry | ||
| مراجع | ||
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