In practice, the wood ashes were boiled in water, which was then strained off, and the resulting filtrate, or lye, was mixed with the fats for soap making. 伯莎M.克拉克.科学通论.
Broadly speaking, plants furnish the carbohydrates, that is, starch and sugar; animals furnish the fats and proteids. 伯莎M.克拉克.科学通论.
The best-known fats are butter, lard, olive oil, and the fats of meats, cheese, and chocolate. 伯莎M.克拉克.科学通论.
Most fats contain a substance of an acid nature, and are decomposed by the action of bases such as caustic soda and caustic potash. 伯莎M.克拉克.科学通论.
Va pour les beaux fats et les jolis fripons! 夏洛蒂·勃朗特.维莱特.
This class of foods contains carbon, oxygen, and hydrogen, and in addition, two substances not found in carbohydrates or fats--namely, sulphur and nitrogen. 伯莎M.克拉克.科学通论.
Here great closed tanks cook the fats, under high steam pressure, and make them into snow-white lard. 佚名.神奇的知识之书.
When we test fats for fuel values by means of a calorimeter (Fig. 26), we find that they yield twice as much heat as the carbohydrates, but that they burn out more quickly. 伯莎M.克拉克.科学通论.
The fats which go to waste in our garbage could be made a source of income, not only to the housewife, but to the city. 伯莎M.克拉克.科学通论.
Most of our fats, like lard and butter, are of animal origin; some of them, however, like olive oil, peanut butter, and coconut oil, are of plant origin. 伯莎M.克拉克.科学通论.
To some extent the same may be said of the soluble fats which give to the butter its variable though characteristic flavor. Edward W. Byrn.十九世纪发明进展.
When a farmer had killed a hog, he would render out certain of the fats in an iron caldron. 佚名.神奇的知识之书.