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Solid-state NMR Spectroscopic Analysis of Sweet Cherry Leaves under Different Cultivation Patterns

Huimin ZhangInstitute for Forest Resources and Environment of Guizhou/College of Forestry, Guizhou University, Guiyang 550025, ChinaHongguang YanSchool of Architectural Engineering , Kaili University , Kaili 556011 , Guizhou , ChinaLU Cui-xiangGuangxi Key Laboratory of Superior Timber Trees Resource Cultivation , Guangxi Zhuang Autonomous Regton Forest Research Institute , Nanning 530002 , ChinaHui LinCollege of Chemistry and Materials , Ningde Normal University , Ningde 352100 , ChinaQuan LiSchool of Architectural Engineering , Kaili University , Kaili 556011 , Guizhou , China

2021en

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Litsenziya: cc-by-nc-nd

ABI

Annotatsiya

Solid-state 1 H-NMR and 13 C-NMR spectroscopy were used to investigate the chemical components of sweet cherry tree leaves under rain-shelter cultivation (RS) and open-field cultivation (CK). The 1 H-NMR spectral chemical shifts of RS and CK showed differences in height and integral value. The δ 1–3, δ 3–4, δ 4–6, and δ 6–10 regions were attributed to the hydrogen signals of aliphatic compounds, unsaturated carbohydrate compounds, and aromatic compounds, respectively. Among the four regions, the percentage of signal strength and the integral value of hydrogen signals of RS and CK were 34.25% and 28.34%, 11.64% and 12.26%, 26.71% and 31.06%, 27.4% and 28.34%, respectively. The 13 C-NMR results showed that the CK sample had slightly stronger spectral lines and contained slightly more carbon atoms than the RS sample. Sweet cherry leaves contain aromatic and carboxyl carbons, mainly from carboxylic acids, esters, and amides. The alkyl carbons exhibited the lowest ratio, whereas the alkyl and alkoxy carbons were mainly derived from carbohydrates (cellulose, polysaccharides).

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Identifikatorlar

DOI: 10.21273/hortsci15346-20

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