Volume 32, Issue 2
August 1950, pages 59-95
pp 59-66 August 1950
Highly purified pectin preparation from papaya and Indian gooseberry have been shown to form typical metal complexes and yield poly-galacturonic acid, arabinose and galactose on acid hydrolysis.
The viscosities of the pectin solutions were of the order usually found for long chain solvated polymers. Up to 0.5% concentration of pectin there was no visible change in relative viscosity with increase in temperature.
The formation of jellies under different concentrations of sugar, acid and pectin has been studied.
pp 67-79 August 1950
pp 80-86 August 1950
pp 87-95 August 1950
The normal tail ofAnguis fragilis is characterized by the presence of a tough dermal membrane covering the caudal musculature, the opposite dispositions of the median dorsal and median ventral scales, the slender and elongated form of the vertebrae, the flattened zygapophyses, the passing of the plane of cleavage through the transverse processes, the difference in the form of the neural space at the intervertebral and autotomy planes, the narrowing of the spinal cord in the inter-vertebral regions and the presence of the myomerism in the caudal musculature corresponding to the autotomic segmentation.
In its regenerated part, it shows the presence of sub-dermal scutes, an abruptly ending cartilaginous tube, the replacement of musculature by fibrous connective tissue, and the formation of a terminal conical scute.