TY - JOUR
T1 - The effect of the structure of native banana starch from two varieties on its acid hydrolysis
AU - Aparicio-Saguilán, Alejandro
AU - Aguirre-Cruz, Andrés
AU - Méndez-Montealvo, Guadalupe
AU - Rodriguez-Ambriz, Sandra L.
AU - Garcia-Suarez, Francisco J.
AU - Páramo-Calderón, Delia E.
AU - Bello-Pérez, Luis A.
N1 - Funding Information:
The authors are grateful for support from SIP-IPN , COFAA-IPN , PROMEP and EDI-IPN . The authors gave thanks to Dr. Gonzalo Velazquez de la Cruz for the support in the statistical analysis.
PY - 2014/10
Y1 - 2014/10
N2 - Two banana starches were studied to analyze the effect of the acid hydrolysis on their molecular structure, and the impact in their physicochemical features. The native banana starches exhibit differences in the amylose content, molar mass, gelatinization parameters, X-ray diffraction pattern, and pasting profile. These results suggested that different acid hydrolysis mechanisms may be operative in these two starches. The kinetic hydrolysis is different in both banana starches that are related to the crystalline packing of the starch molecules. This was confirmed by the amylose content, the X-ray diffraction pattern, and the thermal study in the acid hydrolyzed starches at different times. The acid-treated Roatan starch showed higher retrogradation than Macho starch, a phenomenon that increases in the sample hydrolyzed for the longer time. This pattern is related to the amylose/amylopectin ratio, the reduction in the molar mass and the gyration radius. The acid hydrolysis of banana starches, although they have some similarities, they are different.
AB - Two banana starches were studied to analyze the effect of the acid hydrolysis on their molecular structure, and the impact in their physicochemical features. The native banana starches exhibit differences in the amylose content, molar mass, gelatinization parameters, X-ray diffraction pattern, and pasting profile. These results suggested that different acid hydrolysis mechanisms may be operative in these two starches. The kinetic hydrolysis is different in both banana starches that are related to the crystalline packing of the starch molecules. This was confirmed by the amylose content, the X-ray diffraction pattern, and the thermal study in the acid hydrolyzed starches at different times. The acid-treated Roatan starch showed higher retrogradation than Macho starch, a phenomenon that increases in the sample hydrolyzed for the longer time. This pattern is related to the amylose/amylopectin ratio, the reduction in the molar mass and the gyration radius. The acid hydrolysis of banana starches, although they have some similarities, they are different.
KW - Acid treatment
KW - Banana starches
KW - Molar mass
KW - Physicohemical properties
UR - http://www.scopus.com/inward/record.url?scp=84901255838&partnerID=8YFLogxK
U2 - 10.1016/j.lwt.2014.03.028
DO - 10.1016/j.lwt.2014.03.028
M3 - Artículo
SN - 0023-6438
VL - 58
SP - 381
EP - 386
JO - LWT
JF - LWT
IS - 2
ER -