340
D. J. BELL
VII. Chromatographie Examinations of Biological Materials
for Free Sugars
A wide range of biological materials have been examined, largely by
Chromatographie methods, with the result that the presence in them
of many free sugars has been detected. In the appended list, which
does not claim to be in any way complete, the sugars detected have
not been, on the whole, completely characterized. As has been stated
earlier, chromatography does not distinguish between D- and L-isomers;
in addition there is always the possibility of more than one sugar
migrating at the same rate. In experiments which led to the discovery
of D-apiose among the sugars obtained, mild acid treatment of tissues
of Posidonia australis (24) it was found that the sugar in question could
frequently behave chromatographically as if it were rhamnose.
The materials reported are listed in a rough alphabetical order.
LIST OF MATERIALS REPORTED
Aconitum napellus L. (246)
Alfalfa (Medicago sativa)
(247)
Allium spp. (229, 248, 249)
"Aphids": Woolly alder (250)
Coccus hesperidium
(251)
Eucallipterus tiliae L (226)
Tuberolachnus salignus (251a)
Artichoke (Helianthus tuberosus)
(252)
Cereals (253)
Chlorophyta (254)
Clover (Trifolium pratense)
(255)
Collagen hydrolyzates (26 vertebrate and invertebrate spp.) (256)
Crassulaceae spp. (257)
Eugenia jamholana
(258)
Flowers: Tea (262)
Fruits: Apple, plum, pear (259)
Apricot (260)
Banana (261)
Gramineae: Barley (264)
Lolium sp. (228)
Lolium sp. and Arrhenatherum sp. (229)
Lolium sp. and Festuca sp. (263)
Heather (Calluna vulgaris)
(265)
Honey (228a, 266, 273a)
Hop cones (Humulus sp.) (267)