Freshness maintenance of cherries ready for consumption using convenient, microperforated, bio-based packaging

Area of Science:

• Food Science
• Materials Science
• Sustainable Packaging

Background:

• Consumer demand for high-quality, ready-to-eat fresh fruit in convenient, bio-based packaging is increasing.
• Traditional petroleum-based packaging for fresh produce often results in quality degradation and limited shelf life.

Purpose of the Study:

• To evaluate the efficacy of a novel polylactic acid (PLA) packaging system for fresh sweet cherries.
• To compare the performance of PLA packaging against conventional petroleum-based packaging in preserving cherry quality and marketability.

Main Methods:

• Sweet cherries were packaged in PLA cups with microperforated lids and compared to cherries in petroleum-based macroperforated bags.
• Storage at 1 °C for 27 days, followed by objective measurements (firmness, decay, weight loss, sensory attributes) and consumer sensory evaluation.

Main Results:

• PLA packaging maintained cherry firmness (no reduction vs. 50% in controls) and prevented fungal decay.
• Minimal weight loss (0.8%) in PLA packages compared to controls (16%), with controls non-marketable after 21 days.
• Consumer evaluation favored PLA-packaged cherries for appearance, texture, flavor, and overall acceptability.

Conclusions:

• The novel PLA packaging system effectively meets consumer demand for high-quality, convenient, and bio-based fruit packaging.
• PLA packaging significantly extends fruit marketability and enhances consumer satisfaction.
• This study demonstrates the potential of PLA as a sustainable alternative for fresh fruit packaging.