Open AccessGranule size distribution and pasting properties of starch in normal, waxy and sweet maize kernels
Author(s) -
Wenyang Li,
Peijin Wu,
Zhang Dong-ping,
Shuhui Yan
Publication year - 2020
Publication title -
bangladesh journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.152
H-Index - 17
eISSN - 2079-9926
pISSN - 0253-5416
DOI - 10.3329/bjb.v49i4.52504
Subject(s) - granule (geology) , starch , maize starch , cultivar , chemistry , zea mays , food science , botany , agronomy , horticulture , biology , paleontology
The granule size and pasting properties of starch and their relationship with quality of maize (Zea mays L.) was investigated. A clear bimodal distribution of granule sizes was found in six cultivars of maize. A number of starch granules were made up of small starch granules in kernels. Normal maize had a smaller proportion of granules 12 μm, whereas sweet maize had a greater proportion of granules 12 μm. The peak, trough and breakdown viscosities were found higher in waxy maize and lower in sweet maize. The final and setback viscosities were found higher in normal maize and lower in sweet maize. The peak, trough, final and setback viscosities were significantly and negatively correlated to volume percentage of granules 12 μm.