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The Effect of SO2 Fumigation, Acid Dipping, and SO2 Combined with Acid Dipping on Metabolite Profile of 'Heiye' Litchi (Litchi chinensis Sonn.) Pericarp

文献类型： 外文期刊

作者： Yin, Feilong 1 ; Li, Zhuoran 3 ; Lai, Tingting 2 ; Long, Libing 2 ; Liu, Yunfen 1 ; Han, Dongmei 4 ; Wu, Zhenxian 1 ; Shuai, Liang 1 ; Luo, Tao 1 ;

作者机构： 1.Hezhou Univ, Guangxi Key Lab Hlth Care Food Sci & Technol, Hezhou 542899, Peoples R China

2.South China Agr Univ, Coll Hort,Minist Educ, Engn Res Ctr Southern Hort Prod Preservat, Guangdong Prov Key Lab Postharvest Sci Fruits & Ve, Guangzhou 510642, Peoples R China

3.Tianjin Agr Univ, Coll Hort & Landscape Architecture, Tianjin 300394, Peoples R China

4.Guangdong Acad Agr Sci, Inst Fruit Tree Res, Key Lab South Subtrop Fruit Biol & Genet Resource, Minist Agr, Guangzhou 510640, Peoples R China

5.Nanchang Normal Univ, Coll Chem & Food Sci, Nanchang 330032, Peoples R China

关键词： litchi (Litchi chinensis Sonn.); sulfur fumigation (SF); widely targeted metabolomics; sulfur-containing metabolites; substrates for browning

期刊名称：HORTICULTURAE （ 影响因子：3.0； 五年影响因子：3.2 ）

ISSN：

年卷期： 2025 年 11 卷 8 期

页码：

收录情况： SCI

摘要： Sulfur fumigation (SF), acid dipping (HCl treatment, HAT), and their combination (SF+HAT) are common methods for long-term preservation and color protection of litchi. However, their effects on the metabolic profile of the litchi pericarp have not been investigated. SF resulted in a yellowish-green pericarp by up-regulating lightness (L*), b*, C*, and h degrees but down-regulating total anthocyanin content (TAC) and a*, while HAT resulted in a reddish coloration by up-regulating a*, b*, and C* but down-regulating L*, h degrees, and TAC. SF+HAT recovered reddish color with similar L*, C* to SF but a*, b*, h degrees, and TAC between SF and HAT. Differential accumulated metabolites (DAMs) detected in HAT (vs. control) were more than those in SF (vs. control), but similar to those in SF+HAT (vs. control). SF specifically down-regulated the content of cyanidin-3-O-rutinoside, sinapinaldehyde, salicylic acid, and tyrosol, but up-regulated 6 flavonoids (luteolin, kaempferol-3-O-(6 ''-malonyl)galactoside, hesperetin-7-O-glucoside, etc.). Five pathways (biosynthesis of phenylpropanoids, flavonoid biosynthesis, biosynthesis of secondary metabolites, glutathione metabolism, and cysteine and methionine metabolism) were commonly enriched among the three treatments, which significantly up-regulated sulfur-containing metabolites (mainly glutathione, methionine, and homocystine) and down-regulated substrates for browning (mainly procyanidin B2, C1, and coniferyl alcohol). These results provide metabolic evidence for the effect of three treatments on coloration and storability of litchi.

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