biostudies-literatureUnknown14(23)Zaman WUThis study investigated how amylopectin (AP) chain-length distribution (CLD) influences the structural and functional properties of ten waxy rice varieties through a multiscale analysis. The fitting CLD parameters revealed that varieties such as YN12 and GMN2 contained the highest proportions of intermediate chains (h_iii~14.5~10.2) and long chains (h_v~0.552~0.477), resulting in higher gelatinization temperatures, including onset temperatures (T_o~60.2~66.4 °C), temperature peak (T_p~72.0~72.2 °C), and the conclusion temperatures (T_c~80.8~79.4 °C). Sample YN12 exhibited the lowest breakdown viscosity (BDV~748 cP), indicating higher thermal stability and stable pasting behavior. All of the samples showed relative crystallinity (Rc%) ranginFoods (Basel, Switzerland)4130https://www.ebi.ac.uk/biostudies/studies/S-EPMC12692052biostudies-literatureInvestigating the Impact of Amylopectin Chain-Length Distribution on the Structural and Functional Properties of Waxy Rice Starch.PMC12692052Ijaz ZZaman WUAhmed SNadeem MYLi EfalseInvestigating the Impact of Amylopectin Chain-Length Distribution on the Structural and Functional Properties of Waxy Rice Starch.This study investigated how amylopectin (AP) chain-length distribution (CLD) influences the structural and functional properties of ten waxy rice varieties through a multiscale analysis. The fitting CLD parameters revealed that varieties such as YN12 and GMN2 contained the highest proportions of intermediate chains (h_iii~14.5~10.2) and long chains (h_v~0.552~0.477), resulting in higher gelatinization temperatures, including onset temperatures (T_o~60.2~66.4 °C), temperature peak (T_p~72.0~72.2 °C), and the conclusion temperatures (T_c~80.8~79.4 °C). Sample YN12 exhibited the lowest breakdown viscosity (BDV~748 cP), indicating higher thermal stability and stable pasting behavior. All of the samples showed relative crystallinity (Rc%) rangin2025-01-01T00:00:00Z2025 Dec2026-05-26T17:04:25.616Z2026-05-24T03:11:38.774ZS-EPMC126920524137606610.3390/foods14234130