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<p>Sustaining the sensory integrity and visual appeal of <i>Shahi</i> litchi (<i>Litchi chinensis</i> Sonn.) throughout the post-harvest supply chain remains a critical challenge due to the fruit’s exceptional physiological susceptibility to rapid browning and moisture loss. This study evaluated the efficacy of various modified packaging films (MPF) in preserving freshness, color stability, and physicochemical quality of <i>Shahi</i> litchi through two independent transportation trials. Fruits were transported over an 1150&#xa0;km round-trip route from Muzaffarpur to Lucknow, natural diurnal temperature fluctuations between 29.6&#xa0;°C and 38.1&#xa0;°C, followed by 48&#xa0;h of ambient storage to simulate retail shelf-life. Six treatments were compared: T1 (Control); T2 (Cellulose wrapping); T3 (Nano-silver film); T4 (Laser-perforated MAP); T5 (HDPE); and T6 (PP). Among these, T4 significantly (<i>p</i> ≤ 0.05) outperformed other treatments in maintaining overall fruit freshness. It effectively limited physiological weight loss (2.03–2.17%), maintained a low browning index (1.35), and suppressed decay incidence. In addition, T4 preserved key quality attributes, including fruit firmness (630–639&#xa0;g), ascorbic acid (up to 27.47 mg100 g<sup>− 1</sup>), and titratable acidity, thereby retaining the characteristic taste and nutritional quality of the fruit. Colorimetric analysis confirmed that T4 ensured superior visual stability (ΔE = 0.83–1.96) by maintaining brightness (L*) and redness (a*), which are critical for consumer acceptance. Overall, the results demonstrate that laser-perforated modified atmosphere packaging is a highly effective strategy for reducing postharvest deterioration and extending the marketable shelf-life of litchi under ambient supply chain conditions.</p>

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Laser-perforated film packaging reduces postharvest deterioration of Shahi litchi under ambient supply chain conditions

  • 期刊论文

  • 发表日期：

    2026年7月23日

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  • Ankit Kumar,
  • Chaman Kumar,
  • Sunil Kumar,
  • Ipsita Samal,
  • Bhagya Vijayan,
  • Vinod Kumar,
  • Akhand Pratap Pandey,
  • Upagya Sah

摘要

Sustaining the sensory integrity and visual appeal of Shahi litchi (Litchi chinensis Sonn.) throughout the post-harvest supply chain remains a critical challenge due to the fruit’s exceptional physiological susceptibility to rapid browning and moisture loss. This study evaluated the efficacy of various modified packaging films (MPF) in preserving freshness, color stability, and physicochemical quality of Shahi litchi through two independent transportation trials. Fruits were transported over an 1150 km round-trip route from Muzaffarpur to Lucknow, natural diurnal temperature fluctuations between 29.6 °C and 38.1 °C, followed by 48 h of ambient storage to simulate retail shelf-life. Six treatments were compared: T1 (Control); T2 (Cellulose wrapping); T3 (Nano-silver film); T4 (Laser-perforated MAP); T5 (HDPE); and T6 (PP). Among these, T4 significantly (p ≤ 0.05) outperformed other treatments in maintaining overall fruit freshness. It effectively limited physiological weight loss (2.03–2.17%), maintained a low browning index (1.35), and suppressed decay incidence. In addition, T4 preserved key quality attributes, including fruit firmness (630–639 g), ascorbic acid (up to 27.47 mg100 g− 1), and titratable acidity, thereby retaining the characteristic taste and nutritional quality of the fruit. Colorimetric analysis confirmed that T4 ensured superior visual stability (ΔE = 0.83–1.96) by maintaining brightness (L*) and redness (a*), which are critical for consumer acceptance. Overall, the results demonstrate that laser-perforated modified atmosphere packaging is a highly effective strategy for reducing postharvest deterioration and extending the marketable shelf-life of litchi under ambient supply chain conditions.