日本无限资源_福禄影院午夜伦_美国av毛片_亚洲自拍在线观看_激情亚洲一区国产精品_999久久久久

 
Ancestors make bread before invention of agriculture: study
                 Source: Xinhua | 2018-07-17 03:39:25 | Editor: huaxia

Dr. Amaia Arranz-Otaegui and Ali Shakaiteer sampling cereals in Jordan's Shubayqa area. (Credit: Joe Roe)

WASHINGTON, July 16 (Xinhua) -- Danish and British scientists found that the oldest direct evidence of bread found to date, at least 4,000 years before the advent of agriculture.

A study published on Monday in the journal Proceedings of the National Academy of Sciences journal Proceedings of the National Academy of Sciences reported the charred remains of a flatbread baked by hunter-gatherers 14,400 years ago at an archaeological site in northeastern Jordan.

The findings suggest that bread production based on wild cereals may have encouraged hunter-gatherers to cultivate cereals, thus contributing to the agricultural revolution in the Neolithic period.

A team of researchers from the University of Copenhagen, University College London and University of Cambridge analyzed charred food remains from a Natufian hunter-gatherer site known as Shubayqa 1 located in the Black Desert in northeastern Jordan.

"The 24 remains analyzed in this study show that wild ancestors of domesticated cereals such as barley, einkorn, and oat had been ground, sieved and kneaded prior to cooking. The remains are very similar to unleavened flatbreads identified at several Neolithic and Roman sites in Europe and Turkey," said Amaia Arranz Otaegui, an archaeobotanist from University of Copenhagen and the first author of the study.

"So we now know that bread-like products were produced long before the development of farming," said Otaegui.

According to the researchers, Natufian hunter-gatherers lived through a transitional period when people became more sedentary and their diet began to change.

"Flint sickle blades as well as ground stone tools found at Natufian sites in the Levant have long led archaeologists to suspect that people had begun to exploit plants in a different and perhaps more effective way," said Tobias Richter from University of Copenhagen who led the excavations.

"But the flat bread found at Shubayqa 1 is the earliest evidence of bread making recovered so far, and it shows that baking was invented before we had plant cultivation."

They suggested that the early and extremely time-consuming production of bread based on wild cereals may have been one of the key driving forces behind the later agricultural revolution where wild cereals were cultivated to provide more convenient sources of food.

Back to Top Close
Xinhuanet

Ancestors make bread before invention of agriculture: study

Source: Xinhua 2018-07-17 03:39:25

Dr. Amaia Arranz-Otaegui and Ali Shakaiteer sampling cereals in Jordan's Shubayqa area. (Credit: Joe Roe)

WASHINGTON, July 16 (Xinhua) -- Danish and British scientists found that the oldest direct evidence of bread found to date, at least 4,000 years before the advent of agriculture.

A study published on Monday in the journal Proceedings of the National Academy of Sciences journal Proceedings of the National Academy of Sciences reported the charred remains of a flatbread baked by hunter-gatherers 14,400 years ago at an archaeological site in northeastern Jordan.

The findings suggest that bread production based on wild cereals may have encouraged hunter-gatherers to cultivate cereals, thus contributing to the agricultural revolution in the Neolithic period.

A team of researchers from the University of Copenhagen, University College London and University of Cambridge analyzed charred food remains from a Natufian hunter-gatherer site known as Shubayqa 1 located in the Black Desert in northeastern Jordan.

"The 24 remains analyzed in this study show that wild ancestors of domesticated cereals such as barley, einkorn, and oat had been ground, sieved and kneaded prior to cooking. The remains are very similar to unleavened flatbreads identified at several Neolithic and Roman sites in Europe and Turkey," said Amaia Arranz Otaegui, an archaeobotanist from University of Copenhagen and the first author of the study.

"So we now know that bread-like products were produced long before the development of farming," said Otaegui.

According to the researchers, Natufian hunter-gatherers lived through a transitional period when people became more sedentary and their diet began to change.

"Flint sickle blades as well as ground stone tools found at Natufian sites in the Levant have long led archaeologists to suspect that people had begun to exploit plants in a different and perhaps more effective way," said Tobias Richter from University of Copenhagen who led the excavations.

"But the flat bread found at Shubayqa 1 is the earliest evidence of bread making recovered so far, and it shows that baking was invented before we had plant cultivation."

They suggested that the early and extremely time-consuming production of bread based on wild cereals may have been one of the key driving forces behind the later agricultural revolution where wild cereals were cultivated to provide more convenient sources of food.

010020070750000000000000011100001373292941
主站蜘蛛池模板: 理论片在线 | 国产亚洲精品无码在线观看 | 色综合天天综合高清 | 亚洲一二区视频 | 精品无人乱码一区二区 | 中文字幕乱在线伦视频中文字幕乱码在线 | 日本添下边无码视频全过程 | 9191久久 | 乱码精品国产成人观看免费 | 欧美美乳视频网站在线观看 | 免费看的av网站 | 国产成人精 | 在线观看一区二区三区国产免费 | 少妇挑战三个黑人惨叫4p国语 | 50岁熟妇的呻吟声对白 | 91啪在线观看国产在线 | 亚洲中文字幕无码日韩精品 | AV不卡在线永久免费观看 | 精品国模一区二区三区浪潮 | 国产一级视频免费 | 曰韩三级 | 亚洲成国产人片在线观看 | 中文字幕肉感巨大的乳专区 | 99久久久精品免费观看国产 | 麻豆精品国产免费 | 免费一级婬片AAA毛片肥肥女 | 不卡高清视频 | 无码人妻aⅴ一区二区三区蜜桃 | 新白娘子传奇免费50集 | 成人黄色av片 | 精品久久久久久无码AV | 最新免费中文字幕 | 亚洲一区精品无码 | 欧美日韩亚洲视频 | 99精品免费久久久久久日本 | 日韩成人国产 | 亚洲一区精品无码 | 麻豆精品国产免费 | BT天堂新版中文在线 | 91精品婷婷国产综合久久 | 我想看一级黄色毛片 |