A preparation of debranched waxy maize starch derivatives: Effect of drying temperatures on crystallization and digestibility.
Int J Biol Macromol
; 264(Pt 2): 130684, 2024 Apr.
Article
en En
| MEDLINE
| ID: mdl-38460647
ABSTRACT
The impact of recrystallization conditions and drying temperatures on the crystallization and digestibility of native waxy maize (Zea mays L.) starch (NWMS) was explored. This study involved subjecting NWMS to concurrent debranching and crystallization at 50 °C for up to 7 days. Samples were collected by oven-drying at 40, 60, and 80 °C for 24 h. This simultaneous debranching and crystallization process increased the resistant starch (RS) content by approximately 48 % compared to the native starch. The drying temperatures significantly influenced the RS content, with samples dried at 60 °C exhibiting the lowest digestibility. X-ray diffraction (XRD) analysis revealed that most crystals demonstrated a characteristic A-type arrangement. Debranching and crystallization processes enhanced the crystallinity of the samples. The specific crystal arrangement (A- or B-type) depended on the crystallization conditions. A 15 min heating of NWMS in a boiling water bath increased the digestible fraction to over 90 %, while the samples subjected to debranching and crystallization showed an increase to only about 45 %. A linear correlation between starch fractions and enthalpy was also observed.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Zea mays
/
Amilopectina
Idioma:
En
Revista:
Int J Biol Macromol
/
Int. j. biol. macromol
/
International journal of biological macromolecules
Año:
2024
Tipo del documento:
Article
País de afiliación:
Corea del Sur
Pais de publicación:
Países Bajos