| 单词 | pectin body |
| 释义 | > as lemmaspectin body General attributive, as †pectin body, pectin compound, pectin substance, etc. ΘΚΠ the world > matter > chemistry > organic chemistry > acids obtained from plants or trees > [adjective] > from fruits and berries pectic1851 pectin1864 pectous1866 1864 E. Parrish Treat. Pharmacy (ed. 3) iv. ii. 508 The group of pectin compounds..is..nearly allied to the gums. c1868 S. W. Johnson How Crops Grow i. 84 It was formerly thought that the pectin bodies are convertible into sugar by the prolonged action of acids. 1895 F. E. Weiss tr. P. Sorauer Pop. Treat. Physiol. Plants vi. 123 Together with gums and acids we often find substances consisting also of carbon, hydrogen, and oxygen, which form gelatinous masses on boiling, and are termed pectin substances. 1900 A. J. Ewart tr. W. Pfeffer Physiol. Plants I. viii. 477 Many gums..seem to be in part allied to pectin substances. 1989 Jrnl. Exper. Bot. 40 1053/1 It has been postulated that apple cells are bound together by Ca2+ ions forming bridges between pectin molecules. < as lemmas |
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