Petroleum ether extract content increased.
石油醚提取物含量有增加。
Mainly by tobacco bud extract petroleum ether extract obtained tobacco bud extract.
烤烟花蕾浸膏主要是通过石油醚浸提烤烟花蕾制得浸膏。
The content of carotenoid and petroleum ether extract reduced at three months of aging and then increased.
类胡萝卜素和石油醚提取物含量在陈化三个月时降低,之后上升。
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