Bulletin of the Faculty of Agriculture, Yamaguchi University

Back to Top
Permalink : https://petit.lib.yamaguchi-u.ac.jp/13960
Bulletin of the Faculty of Agriculture, Yamaguchi University Volume 4
published_at 1953

Notes on Some Properties of Brazilian Woods (2)

ブラジル材について(2)
Hino Iwao
Katumoto Ken
About This Article
Descriptions
3. Flavonoid compounds of Brazilian woods. The flavonoid compounds are usually contained abundantly in the epidermal cells and parenchymal cells of outer cortex, though they are often found in the bark and xylem. KANEHIRA mentioned that the alcohol extracts of woods acidified by adding a few drops of concentrated HC1 solution showed the colours of various kinds when they were treated with a small quantity of mercury and metallic magnesium powder. He also added that this variety of colouration of the extracts was due to the flavone derivatives which served the purpose in identifying the kinds of woods. The identification of Brazilian woods by KANEHIRA's method was found not to be satisfactorily utilizable for the purpose.The writers detected the flavonoid compounds by using the method of Paper Chromatography. Among 58 kinds of Brazilian woods 26 kinds were proved to have the flavonoid compounds. Quercetin was found to be of general occurrence, The list of Brazilian woods which have flavonoid compounds is mentioned on pages 205―206.
Other Article
Scolytid-fauna of the Chugoku and Kinki Districts
PP. 1 - 38
Some interesting aphids living upon the quercus
PP. 39 - 50
Histo-chemical studies on plant gall tissues I Microchemical Observation on the Insect Gall of Distylium racemosum SIEBOLD et ZUCCARINI
PP. 51 - 56
Chemical studies on citrus natsudaidai Part 15 Chemistry of Limonin and its related Substance (The Bitter Principles of Citrus)
PP. 57 - 68
Studies on the Histological Change of the Calf-skin during the Process
PP. 69 - 116
Embryological Studies on the Oesophagus of the Domestic Fowl 1 On the Developmental Changes in the Oesophageal Epithelium
PP. 117 - 128
Haematologocal Studies of Egg-laying Fowls 1 Comparison on the Number of Blood-corpuscles between Egg-laying Fowls and Non-laying Fowls
PP. 129 - 132
The Guttation from Rice Seedling Leaves as influenced by Root Activity
PP. 133 - 162
Studies on the Pot-transplanting of Fruit Vegetables Part 2 The Size of the Pot with Refwrence to the Growth of the Top and the Root
PP. 163 - 170
Hormone Spraying on Tomato Plants and Fruition of Tomatoes
PP. 171 - 184
Suspected virus discase of camphor trees
PP. 185 - 198
The virus in the seeds of tobacoo and rsdish plants
PP. 199 - 202
Notes on Some Properties of Brazilian Woods (2)
PP. 203 - 208
Plants and Plant Associations as Natural Monuments in Yamagiti Prefecture (2)
PP. 209 - 216
Flora of iwaisima Island Yamagiti Prefecture
PP. 217 - 238
Effects of Fan on the Velocity and Distribution of the Air Current in the Winnowing Mechanism of Thresher
PP. 239 - 246
A Report of the Rescarches in the Economic Condition of yje Farmers in the Mountainous Region
PP. 247 - 278
Studies on the Misima Cattle II On the Utilization of the Misima Cattle with Special Reference to the Tractive Force of the Misima Cattle as compared with That of the Japanese Black Breed of Cattle the Japanese Brown Breed of Cattle and the Japanese Polla
PP. 279 - 288
Studies on the Misima Cattle III On the Maxroscopic Observation of the Hair of the Misima Cattle
PP. 289 - 292
Parasitological Studies on the ”Misima-Usi”(Misima Cattle) I On the Fasciola hepatica L
PP. 293 - 296