Effects of melatonin on inhibiting quality deterioration of postharvest water bamboo shoots

• Published in: Food chemistry. Molecular sciences Vol. 8; p. 100208
• Main Authors: Qian, Chunlu, Sun, Yan, Zhang, Bei, Shao, Yuyang, Liu, Jun, Kan, Juan, Zhang, Man, Xiao, Lixia, Jin, Changhai, Qi, Xiaohua
• Format: Journal Article
• Language: English
• Published: England Elsevier Ltd 30-07-2024; Elsevier
• Subjects: Chlorophyll; Cold storage; Lignin; Melatonin; Water bamboo shoots; Ammonia aqueous (PubChem CID: 14923); Chlorophyll; Lignin; Melatonin; N, N-dimethylformamide (PubChem CID: 6228); Melatonin (PubChem CID: 896); Cold storage; Hydrochloric Acid (PubChem CID: 313); Acetone (PubChem CID: 180); Tris (PubChem CID: 6503); Acetylacetone (PubChem CID: 31261); Water bamboo shoots; Trichloroacetic acid (PubChem CID: 6421); Methanol (PubChem CID: 887)
• ISSN: 2666-5662; 2666-5662
• DOI: 10.1016/j.fochms.2024.100208

•Chlorophyll synthesis and lignin deposition limit the storage of water bamboo.•MT restrain the metabolism of chlorophyll in water bamboo during cold storage.•MT inhibit the lignin deposition by restraining the phenylpropanoid metabolism.
Water bamboo shoots (Zizania latifolia) is prone to quality deterioration during cold storage after harvest, which causes the decline of commodity value. Chlorophyll synthesis and lignin deposition are the major reasons for quality degradation. This paper studied the influence of exogenous melatonin (MT) on the cold storage quality of water bamboo shoots. MT treatment could delay the increase in skin browning, hardness and weight loss rate, inhibit chlorophyll synthesis and color change of water bamboo shoots, while maintain the content of total phenols and flavonoids, and inhibit lignin deposition by inhibiting the activity and gene expression of phenylpropanoid metabolism related enzymes as PAL, C4H, 4CL, CAD, and POD. The results indicate that exogenous MT treatment can effectively inhibit the quality degradation of cold stored water bamboo shoots.