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9,000-YEAR HISTORY OF CHINESE FERMENTED BEVERAGES CONFIRMED BY PENN MUSEUM ARCHAEOCHEMIST AND AN INTERNATIONAL TEAM OF SCHOLARS

Chemical analyses of ancient organics absorbed, and preserved, in pottery jars from the Neolithic village of Jiahu, in Henan province, Northern China, have revealed that a mixed fermented beverage of rice, honey, and fruit was being produced as early as 9,000 years ago, approximately the same time that barley beer and grape wine were beginning to be made in the Middle East.

In addition, liquids more than 3,000 years old, remarkably preserved inside tightly lidded bronze vessels, were chemically analyzed. These vessels from the capital city of Anyang and an elite burial in the Yellow River Basin, dating to the Shang and Western Zhou Dynasties (ca. 1250-1000 B.C.), contained specialized rice and millet "wines." The beverages had been flavored with herbs, flowers, and/or tree resins, and are similar to herbal wines described in the Shang dynasty oracle inscriptions.

The new discoveries, made by an international, multi-disciplinary team of researchers including the University of Pennsylvania Museum's archaeochemist Dr. Patrick McGovern of MASCA (Museum Applied Science Center for Archaeology), provide the first direct chemical evidence for early fermented beverages in ancient Chinese culture, thus broadening our understanding of the key technological and cultural roles that fermented beverages played in China.

The discoveries and their implications for understanding ancient Chinese culture will be published on-line the week of December 6, 2004 in the PNAS Early Edition (Proceedings of the National Academy of Sciences): "Fermented Beverages of Pre-and Proto-historic China," by Patrick E. McGovern, Juzhong Zhang, Jigen Tang, Zhiquing Zhang, Gretchen R. Hall, Robert A. Moreau, Alberto Nuñez, Eric D. Butrym, Michael P. Richards, Chen-shan Wang, Guangsheng Cheng, Zhijun Zhao, and Changsui Wang. Dr. McGovern worked with this team of researchers, associated with the University of Science and Technology of China in Hefei, the Institute of Archaeology in Beijing, the Institute of Cultural Relics and Archaeology of Henan Province, the U.S. Department of Agriculture, the Firmenich Corporation, Max Planck Institute for Evolutionary Anthropology in Leipzig (Germany), and the Institute of Microbiology of the Chinese Academy of Sciences. The PNAS article may be read by clicking here.

Dr. McGovern first met with archaeologists and scientists, including his co-authors on the paper, in China in 2000, returning there in 2001 and 2002. Because of the great interest in using modern scientific techniques to investigate a crucial aspect of ancient Chinese culture, collaboration was initiated and samples carried back to the U.S. for analysis. Chemical tests of the pottery from the Neolithic village of Jiahu was of special interest, because it is some of the earliest known pottery from China. This site was already famous for yielding some of the earliest musical instruments and domesticated rice, as well as possibly the earliest Chinese pictographic writing. Through a variety of chemical methods including gas and liquid chromatography-mass spectrometry, infrared spectrometry, and stable isotope analysis, finger-print compounds were identified, including those for hawthorn fruit and/or wild grape, beeswax associated with honey, and rice.

The prehistoric beverage at Jiahu, Dr. McGovern asserts, paved the way for unique cereal beverages of the proto-historic 2nd millennium BC, remarkably preserved as liquids inside sealed bronze vessels of the Shang and Western Zhou Dynasties. The vessels had become hermetically sealed when their tightly fitting lids corroded, preventing evaporation. Numerous bronze vessels with these liquids have been excavated at major urban centers along the Yellow River, especially from elite burials of high-ranking individuals. Besides serving as burial goods to sustain the dead in the afterlife, the vessels and their contents can also be related to funerary ceremonies in which living intermediaries communicated with the deceased ancestor and gods in an altered state of consciousness after imbibing a fermented beverage.

"The fragrant aroma of the liquids inside the tightly lidded jars and vats, when their lids were first removed after some three thousand years, suggested that they indeed represented Shang and Western Zhou fermented beverages, " Dr. McGovern noted. Samples of liquid inside vessels from the important capital of Anyang and the Changzikou Tomb in Luyi county were analyzed. The combined archaeochemical, archaeobotanical and archaeological evidence for the Changzikou Tomb and Anyang liquids point to their being fermented and filtered rice or millet "wines," either jiu or chang, its herbal equivalent, according to the Shang Dynasty oracle inscriptions. Specific aromatic herbs (e.g., wormword), flowers (e.g., chrysanthemum), and/or tree resins (e.g., China fir and elemi) had been added to the wines, according to detected compounds such as camphor and alpha-cedrene, beta-amyrin and oleanolic acid, as well as benzaldehyde, acetic acid, and short-chain alcohols characteristic of rice and millet wines.

Both jiu and chang of proto-historic China were likely made by mold saccharification, a uniquely Chinese contribution to beverage-making in which an assemblage of mold species are used to break down the carbohydrates of rice and other grains into simple, fermentable sugars. Yeast for fermentation of the simple sugars enters the process adventitiously, either brought in by insects or settling on to large and small cakes of the mold conglomerate (qu) from the rafters of old buildings. As many as 100 special herbs, including wormwood, are used today to make qu, and some have been shown to increase the yeast activity by as much as seven-fold.

For Dr. McGovern, who began his role in the Chinese wine studies in 2000, this discovery offers an exciting new chapter in our rapidly growing understanding of the importance of fermented beverages in human culture around the world. In 1990, he and colleagues Rudolph H. Michel and Virginia R. Badler first made headlines with the discovery of what was then the earliest known chemical evidence of wine, dating to ca. 3500-3100 B.C., from Godin Tepe in the Zagros Mountains of western Iran (see "Drink and Be Merry!: Infrared Spectroscopy and Ancient Near Eastern Wine" in Organic Contents of Ancient Vessels: Materials Analysis and Archaeological Investigation, eds. W. R. Biers and P.E. McGovern, MASCA Research Papers in Science and Archaeology, vol. 7, Philadelphia: MASCA, University of Pennsylvania Museum, University of Pennsylvania). That finding was followed up by the earliest chemically confirmed barley beer in 1992, inside another vessel from the same room at Godin Tepe that housed the wine jars. In 1994, chemical testing confirmed resinated wine inside two jars excavated by a Penn archaeological team at the Neolithic site of Hajji Firuz Tepe, Iran, dating to ca. 5400 B.C. and some 2000 years earlier than the Godin Tepe jar. Dr. McGovern is author of Ancient Wine: The Search for the Origins of Viniculture (Princeton University Press, 2003).

Dr. McGovern's research was made possible by support from the National Natural Science Foundation of China, the Henry Luce Foundation, and the National Science Foundation (2000-2001; award BCS-9911128). The GC-MS analyses were carried out in the Chemistry Department of Drexel University through the kind auspices of J. P. Honovich. Dr. McGovern also thanks the Institute of Archaeology in Beijing and Zhengzhou for logistical support and providing samples for analysis. Qin Ma Hui, Wuxiao Hong, Hsing-Tsung Huang, Shuicheng Li, Guoguang Luo, Victor Mair, Harold Olmo, Vernon Singleton, and Tiemei Chen variously advised on or facilitated the research. Changsui Wang, chairperson of the Archaeometry program at the University of Science and Technology of China in Hefei (Anhui Province) was untiring in his enthusiasm for the project, and personally accompanied Dr. McGovern on travels to excavations and institutes, where collaborations and meetings with key scientists and archaeologists were arranged.

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