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Molecular preservation and bulk isotopic signals of ancient rice from the Neolithic Tianluoshan site, lower Yangtze River valley, China
Gupta,NS(Gupta,Neal S.)1,2; Leng,Q(Leng,Qin)1; Yang,H(Yang,Hong)1; Cody,GD(Cody,George D.)2; Fogel,ML(Fogel,Marilyn L.)2; Liu,WG(Liu,Weiguo)3; Sun,GP(Sun,Guoping)4
2013-08-15
Source PublicationOrganic Geochemistry
Volume63Pages:85-93
Subtype期刊论文
Abstract

Pyrolysis gas chromatography–mass spectrometry (Py–GC–MS) analysis of Neolithic (4900–3800 BC) archeological rice grains (husked rice fruit) from the Tianluoshan site (Zhejiang Province, eastern China) revealed no polysaccharide products from starch present in the original rice fruit; however, benzene, toluene, dimethyl benzene, phenol, dimethyl phenol and n-alkanes > C30 were detected, indicating their aromatic nature, plus some aliphatic components. On the contrary, polysaccharides were observed in husk material but in significantly lower concentration than in the modern equivalent. The molecular composition was supported by 13C nuclear magnetic resonance spectroscopy (NMR) data. Variation in preservation quality was also detected in persimmon seeds, oak acorns and amanranthaceous seeds from the site. This variation in molecular preservation, which could also be observed at the micro-morphological level, was tracked with scanning electron microscopy (SEM). Variation in bulk tissue carbon isotopic values (d13C) was apparent among archeological samples, a net 1–2‰ positive shift in bulk tissue d13C being found in most of the Tianloushan plant remains. Our data suggest the importance of post-excavation storage conditions and illustrate the power of the application of multiple analytical methods for the study of archeological plant remains.

DOI10.1016/j.palaeo.2013.04.020
Indexed BySCI
Language英语
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Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/9976
Collection加速器质谱中心
Corresponding AuthorYang,H(Yang,Hong)
Affiliation1.Laboratory for Terrestrial Environments, Bryant University, 1150 Douglas Pike, Smithfield, RI 02917, USA;
2.Geophysical Laboratory, Carnegie Institution of Washington, 5251 Broad Branch Road NW, Washington, DC, USA;
3.State Key Laboratory of Loess and Quaternary Geology, IEE, CAS, Xi’an 710075, China;
4.Zhejiang Province Institute of Archaeology and Cultural Heritage, Hangzhou 310014, China
Recommended Citation
GB/T 7714
Gupta,NS,Leng,Q,Yang,H,et al. Molecular preservation and bulk isotopic signals of ancient rice from the Neolithic Tianluoshan site, lower Yangtze River valley, China[J]. Organic Geochemistry,2013,63:85-93.
APA Gupta,NS.,Leng,Q.,Yang,H.,Cody,GD.,Fogel,ML.,...&Sun,GP.(2013).Molecular preservation and bulk isotopic signals of ancient rice from the Neolithic Tianluoshan site, lower Yangtze River valley, China.Organic Geochemistry,63,85-93.
MLA Gupta,NS,et al."Molecular preservation and bulk isotopic signals of ancient rice from the Neolithic Tianluoshan site, lower Yangtze River valley, China".Organic Geochemistry 63(2013):85-93.
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