A STUDY OF SHELF-LIFE OF SOME SOFT DRINKS AND A COMPARATIVE ANALYSIS OF GRAPE AND PALM WINES.
A STUDY OF SHELF-LIFE OF SOME SOFT DRINKS AND A COMPARATIVE ANALYSIS OF GRAPE AND PALM WINES.
No Thumbnail Available
Date
1982
Authors
ADENIYI, SAMUEL ONITIRI
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
Shelf-life studies of Brahma Orange, Brahma
Guarana, Brahma Lemon, Brahma Tonic and Green Sands
Shandy drinks show that the pH, carbonation and
specific gravity values increased constantly with time
while the ascorbic acid and nutritive values decreased.
The acidity value remained unchanged throughout the period
of investigation (4 months) although it varied from one
drink to the other. By the end of the third month virtually
no ascorbic acid was present in any of the drinks;
shelf-life of soft drinks analysed varied with temperature.
Comparative studies of palm and grape wines (table
wines) showed that the former had higher initial sugar
content, lower extract - to - alcohol ratio and lower
pH values than the latter. Grape wines had an even
distribution of all preservatives while an exceptionally
high benzoic acid content was recorded for palm-wines.
The determination of the amount of ethanol in palm-wine
was affected by the presence of volatile acids.
Considering the two palm-wines, 'Uncle T' had more
water content (dilution) than FIRRO.
Description
THESIS SUBMITTED IN PARTIAL FULFILLMENT OF THE
REQUIREMENTS FOR THE MASTER OF SCIENCE.
DEPARTMENT OF CHEMISTRY,
FACULTY OF SCIENCE,
AHMADU BELLO UNIVERSITY,
ZARIA.
1982.
Keywords
SHELF-LIFE,, SOFT DRINKS,, COMPARATIVE,, GRAPE,, PALM WINES.