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In vitro starch digestibility changes during storage of maize flour tortillas

Agama-Acevedo, Edith ; Rendón-Villalobos, Rodolfo ; Tovar, Juscelino LU orcid ; Paredes-López, Octavio ; Islas-Hernández, José Juan and Bello-Pérez, Luis Arturo (2004) In Nahrung / Food 48(1). p.38-42
Abstract

Nixtamalized maize flours elaborated by four factories in Mexico were used for tortilla preparation. Samples were stored at 4°C for up to 72 h and their in vitro starch digestibility features were evaluated. Moisture content was different between flour and tortilla but no evident relation could be established. Protein and lipid levels were lower in tortillas than in flour but ash content was not different in both samples. A decrease in available starch content was observed upon 48 h cold storage (4°C), changes that were concomitant with increased total resistant starch (RS) levels. These changes were due mainly to retrogradation, as suggested by the increased retrograded resistant starch (RRS) levels recorded in stored tortillas; in... (More)

Nixtamalized maize flours elaborated by four factories in Mexico were used for tortilla preparation. Samples were stored at 4°C for up to 72 h and their in vitro starch digestibility features were evaluated. Moisture content was different between flour and tortilla but no evident relation could be established. Protein and lipid levels were lower in tortillas than in flour but ash content was not different in both samples. A decrease in available starch content was observed upon 48 h cold storage (4°C), changes that were concomitant with increased total resistant starch (RS) levels. These changes were due mainly to retrogradation, as suggested by the increased retrograded resistant starch (RRS) levels recorded in stored tortillas; in some samples, RRS represented up to 100% of total RS. The digestion (α-amylolysis) rate (DR) of freshly prepared tortillas differed for the various samples. Although the amylolysis patterns for fresh and 72 h-stored tortillas were similar, lower DR values were shown for the stored materials. The differences found among the various tortilla samples may be due to variations in processing conditions during commercial maize flour preparation, and to the use of different maize varieties.

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author
; ; ; ; and
publishing date
type
Contribution to journal
publication status
published
keywords
Maize, Nixtamalization, Resistant starch, Starch digestibility, Tortillas
in
Nahrung / Food
volume
48
issue
1
pages
5 pages
publisher
John Wiley & Sons Inc.
external identifiers
  • scopus:1642315520
  • pmid:15053349
ISSN
0027-769X
DOI
10.1002/food.200300352
language
English
LU publication?
no
id
77505afb-8f42-4799-bbe0-0efa1af021d3
date added to LUP
2018-10-05 15:45:14
date last changed
2024-09-17 03:47:04
@article{77505afb-8f42-4799-bbe0-0efa1af021d3,
  abstract     = {{<p>Nixtamalized maize flours elaborated by four factories in Mexico were used for tortilla preparation. Samples were stored at 4°C for up to 72 h and their in vitro starch digestibility features were evaluated. Moisture content was different between flour and tortilla but no evident relation could be established. Protein and lipid levels were lower in tortillas than in flour but ash content was not different in both samples. A decrease in available starch content was observed upon 48 h cold storage (4°C), changes that were concomitant with increased total resistant starch (RS) levels. These changes were due mainly to retrogradation, as suggested by the increased retrograded resistant starch (RRS) levels recorded in stored tortillas; in some samples, RRS represented up to 100% of total RS. The digestion (α-amylolysis) rate (DR) of freshly prepared tortillas differed for the various samples. Although the amylolysis patterns for fresh and 72 h-stored tortillas were similar, lower DR values were shown for the stored materials. The differences found among the various tortilla samples may be due to variations in processing conditions during commercial maize flour preparation, and to the use of different maize varieties.</p>}},
  author       = {{Agama-Acevedo, Edith and Rendón-Villalobos, Rodolfo and Tovar, Juscelino and Paredes-López, Octavio and Islas-Hernández, José Juan and Bello-Pérez, Luis Arturo}},
  issn         = {{0027-769X}},
  keywords     = {{Maize; Nixtamalization; Resistant starch; Starch digestibility; Tortillas}},
  language     = {{eng}},
  month        = {{02}},
  number       = {{1}},
  pages        = {{38--42}},
  publisher    = {{John Wiley & Sons Inc.}},
  series       = {{Nahrung / Food}},
  title        = {{In vitro starch digestibility changes during storage of maize flour tortillas}},
  url          = {{http://dx.doi.org/10.1002/food.200300352}},
  doi          = {{10.1002/food.200300352}},
  volume       = {{48}},
  year         = {{2004}},
}