缓解
发表于 2025-3-25 05:27:05
https://doi.org/10.1007/978-3-476-03453-3 glass jars in boiling water. In 1810, Peter Durand of England developed the metal can, which was fabricated and sealed by hand soldering. In 1819, William Underwood of the United States started the first canning factory in Baltimore. But preserving foods in boiling water took too long, requiring ab
单片眼镜
发表于 2025-3-25 08:24:15
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哄骗
发表于 2025-3-25 12:22:22
https://doi.org/10.1007/978-3-663-04286-0ntrol over chemical additives used as preservatives or colorings. In 1906, Upton Sinclair published his book entitled ., which was based upon the meat-packing industry in Chicago. In the book, Sinclair intended to focus on poor working conditions and exploitation of workers, but his description of h
SMART
发表于 2025-3-25 15:51:19
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Resection
发表于 2025-3-25 20:29:38
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过去分词
发表于 2025-3-26 00:08:01
Zusammenfassende Schlussfolgerungen,Foods are normally contaminated with microbes (or microorganisms) that are so small that a microscope is required to see them. Microbes include bacteria, yeasts, molds, virus, algae, and protozoans. However, the organisms that normally contaminate and spoil food are the bacteria, with yeasts and molds of secondary importance.
intricacy
发表于 2025-3-26 06:03:59
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冷峻
发表于 2025-3-26 12:13:17
https://doi.org/10.1007/978-3-642-55965-5Drying is probably the oldest food preservation process practiced. It is believed that many foods, especially grains and fruits of high sugar content, were preserved by primitive peoples by allowing the foods to dry in the sun. Spices and fish, cut into thin strips, were also preserved in this manner.
送秋波
发表于 2025-3-26 15:25:44
https://doi.org/10.1007/978-3-322-90462-1Of the many foods obtained from the land, humans tend to prefer animal foods, mainly beef, pork, poultry, and lamb as well as their byproducts (e.g., cheeses, milk, and eggs). The most important source of meat in the United States is cattle. Horses have not been an important source of meat, except during wars when meat shortages have occurred.
atopic
发表于 2025-3-26 17:00:33
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