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Article

Correlations among Quality Characteristics of Green Asparagus Affected by the Application Methods of Elevated CO₂ Combined with MA Packaging

by 1,*, 1,2 and 1,3,*
1
Division of Horticulture and Systems Engineering, Kangwon National University, Chuncheon 24341, Korea
2
Agricultural and Life Science Research Institute, Kangwon National University, Chuncheon 24341, Korea
3
Interdisciplinary Program in Smart Agriculture, Kangwon National University, Chuncheon 24341, Korea
*
Authors to whom correspondence should be addressed.
Horticulturae 2020, 6(4), 103; https://doi.org/10.3390/horticulturae6040103
Received: 9 November 2020 / Revised: 4 December 2020 / Accepted: 10 December 2020 / Published: 14 December 2020
(This article belongs to the Special Issue Managing the Product Quality of Vegetable Crops under Abiotic Stress)
This research investigated the effects of continuous elevated CO₂ (20%, (v/v)) application or a 3 day CO₂ pretreatment followed by modified atmosphere (MA) or micro-perforated (MP) packaging on the postharvest quality of asparagus. The combination of CO₂ pretreatment with MA packaging (Pre-MA) inhibited the yellowing of asparagus and fresh weight loss (FWL), whereas stem firmness slightly increased with all elevated CO₂ treatments. CO₂ pretreatments increased antioxidant activity in the stem, but not in the tip, in contrast to the continuous flow CO₂ (Flow-CO₂) treatment. The phenolic and flavonoid contents increased in the elevated CO₂ pretreatments and Flow-CO₂ treatment. The elevated CO₂ treatments, especially Flow-CO₂, inhibited the development of microorganisms, and the treated asparagus did not decay. Pre-MA and Flow-CO₂ treatments were more effective in maintaining the visual quality and retarding the off-odor of asparagus. Furthermore, significant correlations between sensory quality characteristics and physiological-biochemical attributes were recognized; three principal components were extracted and they explained 86.4% of asparagus characteristics. The results confirmed the importance of visual quality, off-odor, firmness, color parameters, SSC and total phenolic content. In conclusion, elevated CO₂ pretreatment followed by MA packaging (Pre-MA) was beneficial for extending asparagus cold storage shelf life, and Flow-CO₂ was the best treatment for inhibiting postharvest decay. View Full-Text
Keywords: elevated CO₂; modified atmosphere package; sensory and physiological-biochemical characteristics; total phenol; DPPH elevated CO₂; modified atmosphere package; sensory and physiological-biochemical characteristics; total phenol; DPPH
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MDPI and ACS Style

Wang, L.-X.; Choi, I.-L.; Kang, H.-M. Correlations among Quality Characteristics of Green Asparagus Affected by the Application Methods of Elevated CO₂ Combined with MA Packaging. Horticulturae 2020, 6, 103. https://doi.org/10.3390/horticulturae6040103

AMA Style

Wang L-X, Choi I-L, Kang H-M. Correlations among Quality Characteristics of Green Asparagus Affected by the Application Methods of Elevated CO₂ Combined with MA Packaging. Horticulturae. 2020; 6(4):103. https://doi.org/10.3390/horticulturae6040103

Chicago/Turabian Style

Wang, Li-Xia, In-Lee Choi, and Ho-Min Kang. 2020. "Correlations among Quality Characteristics of Green Asparagus Affected by the Application Methods of Elevated CO₂ Combined with MA Packaging" Horticulturae 6, no. 4: 103. https://doi.org/10.3390/horticulturae6040103

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