Related Experiment Video
Updated: Sep 10, 2026

Analysis of Effect of Compound Salt Stress on Seed Germination and Salt Tolerance Analysis of Pepper (Capsicum annuum L.)
Published on: November 30, 2022
Metabolic alterations associated with chilling injury development in red pepper (Capsicum annuum L.) during
Gi-Un Seong1, Dae-Yong Yun1, Jong-Jin Park2
1Smart Manufacturing Research Group, Korea Food Research Institute, Wanju-gun 55365, Republic of Korea.
Abstract:
Red pepper (Capsicum annuum L.) is stored at low temperatures to maintain freshness; however, prolonged storage can induce chilling stress and quality deterioration. This study investigated metabolic alterations associated with chilling stress during cold storage. Chilling injury (CI) symptoms progressively intensified, became evident after 2 weeks, and were accompanied by pronounced metabolic shifts. Complementary proton nuclear magnetic resonance spectroscopy and gas chromatography-tandem mass spectrometry (GC-MS/MS) analyses revealed metabolite-specific alterations in carbohydrates, amino acids, and organic acids. Multivariate analysis clearly distinguished early (0-2 weeks) and late (4-6 weeks) storage stages, whereas GC-MS/MS profiling showed a marked increase in sucrose (log₂FC = 1.67). Changes in amino acids and tricarboxylic acid cycle-related metabolites were associated with coordinated alterations in central carbon and nitrogen metabolism. These findings provide novel insights into metabolic responses to chilling stress and a metabolic framework for future studies on postharvest management of chilling-sensitive horticultural crops.
Related Concept Videos
Responses to Heat and Cold Stress
Methods of Controlling Food Spoilage
Effects of Temperature on Free Energy
Principles of Food Preservation
Factors Influencing Microbial Growth: Temperature
Adaptations that Reduce Water Loss
