In Beijing , the best-known spiced beef is made in Yue Sheng Zhai .
其中醛类、醚类、含氮含硫以及杂环化合物是月盛斋酱牛肉的重要挥发性成分。
Among these compounds , aldehyde , ether , nitrogen-and sulfur-containing and heterocyclic compounds were the important flavor compounds in Yueshengzhai spiced beef .