Effect of milk composition upon the partition coefficients of diacetyl, acetaldehyde, and ethanol in acidified milk products /

12%. The partition coefficients of acetaldehyde, ethanol,

Bibliographic Details
Main Author: Wilke, Anthony Gerald, 1968-
Format: Thesis eBook
Language:English
Published: [Place of publication not identified] : [publisher not identified] ; 1994.
Subjects:
Online Access:Link to OAKTrust copy
Description
Summary:12%. The partition coefficients of acetaldehyde, ethanol,
30 and 50'C. At 50'C, the milk fat x concentration
300C, milk fat affected the partition coefficients of
500C, partition coefficients increased as concentration of
Acidified milk samples were prepared with fat concentrations
affected the partition coefficients of acetaldehyde at both
and 4.6, and at 30 and 500C using gas chromatographic
and diacetyl were determined in acidified samples at pH 4.4
and milk fat x concentration interaction affected the
both temperatures and at the lowest concentration.
coefficients decreased as concentration of acetaldehyde
coefficients. The highest partition coefficients were
concentration and the SNF x fat x concentration interaction
concentration interaction, and SNF x milk fat x pH
concentration of diacetyl at both temperatures. At 300C, as
concentration of ethanol, pH, milk fat, milk fat x
concentration of milk fat increased so did the partition
diacetyl and at 500C, pH x concentration of diacetyl
from 0 to 20% and solids-not-fat concentrations from 6 to
headspace analysis (IGCHS). Concentration, SNF x
increased. The partition coefficients for ethanol at 300C
increasing concentration of ethanol at both temperatures. At
increasing concentrations of milk fat. Partition
interaction affected the partition coefficients of diacetyl.
interaction affected the partition coefficients of ethanol.
interaction significantly affected the partition coefficient.
milk fat increased at 12 % SNF and pH did not have an effect
observed for acetaldehyde compared to diacetyl and ethanol at
on partition coefficients. Concentration of diacetyl, pH,
Partition coefficients increased with increasing
partition coefficients of diacetyl at both temperatures. At
The partition coefficient of acetaldehyde increased with
The partition coefficients for ethanol increased with
were affected only by concentration of ethanol. At 500C,
Item Description:"Major subject: Food Science and Technology".
Vita.
Physical Description:xiv, 102 leaves : illustrations ; 28 cm.
Also available online.
Bibliography:Includes bibliographical references.