From:  Physicochemical, morphological characteristics, and functional properties of Brosimum alicastrum Sw. seed starch modified by HMT

 Morphological characteristics and amylose-amylopectin content of native and HMT-modified starches.

STMorphologyAmylose
(%)
Amylopectin
(%)
Amylose/Amylopectin ratio
Diameter
(µm)
Shape
RSSNative6.3 ± 1.4–11.5 ± 1.3Oval-Spherical24.9 ± 0.4b75.1 ± 0.4b1:3.0
HMT10%7.1 ± 1.8–16.2 ± 0.025.8 ± 0.1a74.2 ± 0.1c1:2.9
HMT20%7.3 ± 1.8–14.1 ± 0.824.3 ± 0.1c75.7 ± 0.1a1:3.1
HMT30%8.0 ± 1.2–11.5 ± 1.525.5 ± 0.2a74.5 ± 0.2c1:2.9
CSNative12.1 ± 1.2–21.8 ± 2.6Polyhedral28.1 ± 0.2a71.9 ± 0.2b1:2.6
HMT10%12.6 ± 1.5–14.8 ± 1.827.4 ± 0.4b72.6 ± 0.4a1:2.7
HMT20%8.6 ± 1.2–18.7 ± 0.828.6 ± 0.2a71.4 ± 0.2b1:2.5
HMT30%8.3 ± 1.4–16.6 ± 1.128.5 ± 0.4a71.5 ± 0.4b1:2.5
WSNative12.9 ± 0.9–24.7 ± 3.0Spherical and flat circular22.1 ± 0.2d77.9 ± 0.2a1:3.5
HMT10%18.8 ± 3.4–23.8 ± 5.623.2 ± 0.5c76.8 ± 0.5b1:3.3
HMT20%11.7 ± 0.2–23.0 ± 3.524.3 ± 0.5b75.7 ± 0.5c1:3.1
HMT30%15.1 ± 1.4–29.1 ± 4.525.1 ± 0.4a74.9 ± 0.4d1:3.0

The two mean ± SD values represent the minimum and maximum mean diameter in the same treatment. S: starch; T: treatments; RSS: Ramón seed starch; CS: corn starch; WS: wheat starch; HMT: heat-moisture treatment. Amylose and amylopectin content were compared among treatments in the same starch. Values in the same column with different lowercase letters indicate significant difference (P < 0.05).