Combined melatonin and UV-C treatment maintains the quality of fresh-cut bamboo shoots during storage by altering microbial diversity and metabolites
文献类型: 外文期刊
作者: Liu, Dongjie 1 ; Wang, Feng 1 ; Brennan, Charles 1 ; Benjakul, Soottawat 2 ; Xiao, Gengsheng 1 ; Ying, Xiaoguo 3 ; Ma, Lukai 1 ;
作者机构: 1.Zhongkai Univ Agr & Engn, Coll Light Ind & Food, Key Lab Green Proc & Intelligent Mfg Lingnan Speci, Guangzhou 510225, Peoples R China
2.RMIT Univ, Sch Sci, Melbourne, Australia
3.Prince Songkla Univ, Fac Agroind, Int Ctr Excellence Seafood Sci & Innovat, Hat Yai 90110, Thailand
4.Zhejiang Ocean Univ, Collaborat Innovat Ctr Seafood Deep Proc, Zhejiang Prov Key Lab Hlth Risk Factors Seafood, Coll Food & Pharm, Zhoushan 316022, Peoples R China
5.Tibet Acad Agr & Anim Husb Sci, Inst Agr Prod Dev & Food Sci, Lhasa 850000, Peoples R China
关键词: Fresh-cut bamboo shoot; Melatonin; UV-C; Microbial diversity; Metabolome; Lignification
期刊名称:POSTHARVEST BIOLOGY AND TECHNOLOGY ( 影响因子:7.0; 五年影响因子:6.9 )
ISSN: 0925-5214
年卷期: 2023 年 200 卷
页码:
收录情况: SCI
摘要: The quality of fresh-cut Ma bamboo (Dendrocalamus latiflorus Munro) shoots was evaluated via physicochemical, 16S rRNA gene sequencing, and metabolomic analyses. Lactobacillaceae, Streptococcaceae, and Enterobacteriaceae were the predominant bacteria. Melatonin and UV-C treatments most inhibited Lactobacillaceae and Cyano-bacteriales, respectively. Differential metabolic profiling revealed that 47 and 44 metabolites were down-regulated and upregulated, respectively, in the shoots during storage. Significant metabolite accumulation, including secondary metabolite precursors related to phenylpropanoid biosynthesis (tyrosine, leucine, and phenylalanine), was detected. This corresponded to the lignin content and firmness. Melatonin and UV-C treatments increased resistance to external stress via the accumulation of fatty acids and flavonoids. UV-C irradiation upregulated 19 of 22 fatty acyls, including ethyl linoleate, ethyl palmitoleate, 2-isopropylmalic acid, and jasmonic acid, whereas melatonin treatment increased 12 of 16 flavonoids, including hildgardtene and butein 4 '-arabinosyl-(1->4)-galactoside. A combined melatonin and UV-C treatment exhibited the merits of both and best maintained the quality of the shoots.
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