TY - JOUR
T1 - Starch debranching enzyme activity and its effects on some starch physicochemical characteristics in developing substituted and complete triticales (X Triticosecale Wittmack)
AU - Cornejo-Ramírez, Yaeel I.
AU - Ramírez-Reyes, Francisco
AU - Cinco-Moroyoqui, Francisco J.
AU - Rosas-Burgos, Ema C.
AU - Martínez-Cruz, Oliviert
AU - Carvajal-Millán, Elizabeth
AU - Cárdenas-López, José L.
AU - Torres-Chavez, Patricia I.
AU - Osuna-Amarillas, Pablo S.
AU - Borboa-Flores, Jesús
AU - Wong-Corral, Francisco J.
N1 - Publisher Copyright:
© 2016 AACC International, Inc.
PY - 2016/1/1
Y1 - 2016/1/1
N2 - The present work was carried out to make a comparison between the starch debranching enzyme activity and the synthesis of total carbohydrates, starch, amylose, and amylopectin in developing kernels of two sets of triticales differing in genome composition (complete and substituted triticales). The results showed that the carbohydrate and starch accumulation observed in both genotypes of triticales increased rapidly at the early stage, reaching the maximum at the medium stage and decreasing slightly or remaining relatively constant at the last stage of kernel development. At the end of the development stage, the mature grains of complete and substituted triticales accumulated 62.5 and 54.6% starch, respectively. Both sets of triticales showed the same amylose accumulation profile as well as degree of polymerization; however, at the maturity stage there was a small but significant difference between the two sets. The final polymerization values of amylose chains in mature seeds of complete and substituted triticales were DP 1,549 and 1,313. A and B1 amylopectin chains of the complete triticales were approximately 19 and 33% shorter than those of the substituted triticales. The complete triticales showed higher isoamylase and pullulanase activities than the substituted triticales, which coincided with the highest starch and amylose contents observed in kernels under development. The results of this study demonstrate that the synthesis of starch differs between the triticale genotypes used in the study, which influences their chemical structure and physicochemical properties.
AB - The present work was carried out to make a comparison between the starch debranching enzyme activity and the synthesis of total carbohydrates, starch, amylose, and amylopectin in developing kernels of two sets of triticales differing in genome composition (complete and substituted triticales). The results showed that the carbohydrate and starch accumulation observed in both genotypes of triticales increased rapidly at the early stage, reaching the maximum at the medium stage and decreasing slightly or remaining relatively constant at the last stage of kernel development. At the end of the development stage, the mature grains of complete and substituted triticales accumulated 62.5 and 54.6% starch, respectively. Both sets of triticales showed the same amylose accumulation profile as well as degree of polymerization; however, at the maturity stage there was a small but significant difference between the two sets. The final polymerization values of amylose chains in mature seeds of complete and substituted triticales were DP 1,549 and 1,313. A and B1 amylopectin chains of the complete triticales were approximately 19 and 33% shorter than those of the substituted triticales. The complete triticales showed higher isoamylase and pullulanase activities than the substituted triticales, which coincided with the highest starch and amylose contents observed in kernels under development. The results of this study demonstrate that the synthesis of starch differs between the triticale genotypes used in the study, which influences their chemical structure and physicochemical properties.
UR - http://www.scopus.com/inward/record.url?scp=84957600989&partnerID=8YFLogxK
U2 - 10.1094/CCHEM-02-15-0034-R
DO - 10.1094/CCHEM-02-15-0034-R
M3 - Artículo
SN - 0009-0352
VL - 93
SP - 64
EP - 70
JO - Cereal Chemistry
JF - Cereal Chemistry
IS - 1
ER -