Factors affecting the color of corn tortillas and tortilla chips /

(1.2% sucrose, 2.3% free amino groups and 1.2% phenols) for

Bibliographic Details
Main Author: Mireles, Raquel C.
Format: Thesis eBook
Language:English
Published: [Place of publication not identified] : [publisher not identified] ; 1995.
Subjects:
Online Access:Link to OAKTrust copy
Description
Summary:(1.2% sucrose, 2.3% free amino groups and 1.2% phenols) for
(L, a, b), pH, and moisture content of tortillas and chips
5, 15, 30, 60 min and 24 hr prior to frying to examine the
acid (GLF) caused darker chips. The combination of glucose
and lysine produced darker chips at lower concentrations
bleaching agents on color of tortillas and tortilla chips
bleaching agents to improve tortilla chip color. Masa was
calcium or benzoyl peroxide. Tortillas and chips prepared
Chips appeared slightly darker when fried immediately
color of the finished chip. Variations in minor components
combination of 50 ppm each of glucose, lysine and ferulic
combinations of glucose, lysine and ferulic acid. Calcium
compared to all paired combinations of glucose, lysine and
compared to chips equilibrated for longer periods. Thus,
effect of equilibration on chip color. White dry masa flour
equilibration time affects the oil absorption, texture and
ferulic acid. Tortillas and chips prepared with hydrogen
GLF alone. Tortillas fried immediately after baking produced
glucose, lysine and ferulic acid required to participate in
Hydrogen, benzoyl and calcium peroxide were added as
in tortillas and chips at pH < 6.4. The minimum level of
increase in a dull, yellow color. No darkening was observed
lightening was observed by the addition of < 2500 ppm of
lightness when compared to tortillas and chips prepared with
NIR. Tortillas and chips became darker above pH 7.5 and 6.4,
of corn significantly affect color of white tortillas and
oily chips which had excessive pillowing and poor texture.
oxide and citric acid were used to increase or decrease pH.
peroxide were lighter than untreated tortillas and chips. No
respectively. A decrease in lightness was accompanied by an
sheeted, baked, cut, equilibrated and fried to produce
The effects of phenols, amino acids, reducing sugars, pH and
the Maillard reaction was much higher in tortillas than chips
tortilla chips was blended with different concentrations and
tortilla chips.
tortillas and chips using pilot plant equipment. The color
were determined. Fat content of chips was determined with
were investigated. Baked tortillas were equilibrated for 0,
with GLF, citric acid and hydrogen peroxide had increased
with significant darkening occurring during frying. The
Item Description:"Major subject: Food Science and Technology".
Vita.
Physical Description:xi, 83 leaves : illustrations ; 28 cm.
Also available online.
Issued also on microfiche from Lange Micrographics.
Bibliography:Includes bibliographical references.