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Journal of Desert Research ›› 2023, Vol. 43 ›› Issue (1): 58-65.DOI: 10.7522/j.issn.1000-694X.2022.00087

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Progress on the structural and physicochemical properties of sand riceAgriophyllum squarrosumstarch

Lu Yang1(), Xin Liu1, Changcheng Zhao1, Qiaozhen Kang1, Jike Lu1, Pengshan Zhao2()   

  1. 1.School of Life Sciences,Zhengzhou University,Zhengzhou 450001,China
    2.Key Laboratory of Stress Physiology and Ecology in Cold and Arid Regions,Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou 730000,China
  • Received:2022-03-24 Revised:2022-05-30 Online:2023-01-20 Published:2023-01-17
  • Contact: Pengshan Zhao

Abstract:

Agriophyllum squarrosum is a future crop belonging to Chenopodioideae Amaranthaceae. The seeds of A. squarrosum, also known as sand rice, contain rich nutrients, including protein, essential amino acids, and unsaturated fatty acids. Starch accounts for more than 43.85% of the weight of sand rice, and the starch granule is spherical and smooth, with an average diameter of 1 μm and an A-type crystal structure. The native sand rice starch has high pasting viscosity and gelatinization enthalpy, and good thermal stability. The granules of sand rice starch become coarser after heat-moisture and/or ultrasonic treatments, but still maintain the A-type crystal pattern. Accordingly, the pasting temperatures of the modified sand rice starches are increased, the gelatinization enthalpy values decreased, and the contents of slowly digestible starch and resistant starch increased. This manuscript briefly summarized the structural and physicochemical characteristics and functional properties of the native sand rice starch, as well as its property changes with different processing methods, and provided a theoretical basis for the comprehensive development and utilization of sand rice in food and other industries.

Key words: Agriophyllum squarrosum starch, structure, physicochemical properties, modified treatment

CLC Number: