𝔖 Bobbio Scriptorium
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Pectin studies. Part I. Method of purification

✍ Scribed by Lampitt, L. H. ;Money, R. W. ;Judge, B. E. ;Urie, A.

Publisher
Wiley (John Wiley & Sons)
Year
1947
Weight
508 KB
Volume
66
Category
Article
ISSN
0368-4075

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✦ Synopsis

Abstract

Comparative rests were carried out on the purification of crude pectin extracts by (a) dialysis, (b) precipitation by alcohol, and (c) ionic exchange. The results showed that dialysis followed by precipitation gave the highest calcium pectate value and complete removal of sugars, free acids and free ash. Ionic exchange gave a pectin of considerably lower residual ash content, but the additional reduction was at the expense of the inorganic ions combined with the pectin and is thus of doubtful desirability, except for particular purposes.

πŸ“œ SIMILAR VOLUMES

Pectin studies.-Part II. The effect of d
Pectin studies.-Part II. The effect of dry grinding
✍ Lampitt, L. H. ;Money, R. W. ;Judge, B. E. ;Urie, A. πŸ“‚ Article πŸ“… 1947 πŸ› Wiley (John Wiley & Sons) βš– 444 KB

## Abstract The dry grinding of pectins from various sources in a ball mill caused depolymerisation of the pectin molecules as evidenced by the fall in the value of viscosity of aqueous solutions of the pectin and of acetone solutions of the nitro‐ester. The depolymerisation was accompanied by loss