مجله علوم و صنایع غذایی ایران

مجله علوم و صنایع غذایی ایران

Development of Sustainable Active Biocomposite Films from Rice Flour, Carrageenan, and Date Pit Extract for Enhanced Food Packaging and Shelf Life Extension of Perishable Dairy Products

نوع مقاله : مقاله پژوهشی

نویسندگان
Shahad R. Mutlaq 1
Sabraa saad Yaseen 1
Sara S. Faiad 2
1 Department of Food Science / College of Agriculture
2 2Department of Food Science / College of Agriculture
10.48311/fsct.2026.122305.83342
چکیده
This study developed novel biocomposite active films from rice flour (a low cost agricultural by product) and carrageenan, reinforced with polyphenol rich date pit extract (DPE) at 0, 1, 2, and 3% (w/w), using glycerol as a plasticizer and the solvent casting method. The optimal formulation (T2, 2% DPE) significantly improved mechanical performance, increasing tensile strength by approximately 44% to 25.8 MPa, while achieving the lowest water vapor permeability (6.47 × 10⁻¹¹ g/m·s·Pa). FTIR and SEM analyses confirmed robust hydrogen bonding and homogeneous microstructural distribution at 2% DPE, whereas 3% loading caused molecular aggregation and phase separation. The active films exhibited a substantial increase in total phenolic content and radical scavenging activity (DPPH and ABTS), maintaining exceptional biochemical stability over 12 weeks of storage. The soil burial test verified rapid biodegradation (95 100% within 30 days), confirming environmental sustainability. Preliminary application on soft cheese demonstrated that T2 and T3 films maintained total viable counts below the spoilage threshold (7 log CFU/g) throughout 21 days of refrigerated storage, extending shelf life by 2 4 days compared to control films. From an industrial perspective, these films offer multiple benefits: (i) reducing dependence on synthetic plastics through the use of renewable agricultural by products; (ii) extending the shelf life of perishable dairy products through controlled release of bioactive phenolic compounds; (iii) reducing food waste and associated economic losses; and (iv) meeting growing consumer demand for clean label, environmentally sustainable packaging
کلیدواژه‌ها
Rice flour
active packaging
biodegradable films
shelf life extension
dairy packaging
food sustainability
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