2. Materials and methods
2.1. Materials
2.1.1. Rice flour
Rice flour was prepared from high amylose rice grain (Chai Nat cultivar) according to Cham and Suwannaporn (2010) as follows. Rice grains were soaked in water for 4 h and then wet milled using a colloid mill (Masuko Sangyo, MKPM6-2, Japan). Rice flour slurry was centrifuged using a basket centrifuge (Washino, Thailand). The rice flour cake was dried in a tray dryer at 45 °C until the moisture content was 10–12%. The dried rice flour cake was milled with a hammer mill (Ultra-Centrifugal Mill, Type ZM 1; Retsch GmbH, Haan, Germany) and sieved through a 0.150 mm sieve. Fine rice flour samples were packed in polyethylene bags, sealed, and kept at 4 °C until use.
2. 2.1 วัสดุ2.1.1 2. Materials and methods
2.1. Materials
2.1.1. Rice flour
Rice flour was prepared from high amylose rice grain (Chai Nat cultivar) according to Cham and Suwannaporn (2010) as follows. Rice grains were soaked in water for 4 h and then wet milled using a colloid mill (Masuko Sangyo, MKPM6-2, Japan). Rice flour slurry was centrifuged using a basket centrifuge (Washino, Thailand). The rice flour cake was dried in a tray dryer at 45 °C until the moisture content was 10–12%. The dried rice flour cake was milled with a hammer mill (Ultra-Centrifugal Mill, Type ZM 1; Retsch GmbH, Haan, Germany) and sieved through a 0.150 mm sieve. Fine rice flour samples were packed in polyethylene bags, sealed, and kept at 4 °C until use.
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