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Variation in Protein Content and Amino Acids in the Leaves of Grain, Vegetable and Weedy Types of Amaranths
Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai Tsukuba-Ibaraki, Japan
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Received: 26 March 2013; in revised form: 20 April 2013 / Accepted: 24 April 2013 / Published: 3 May 2013
Abstract: Malnutrition has affected almost 31% of pre-school children. This paper provides the information of nutritional values (leaf protein, 15 amino acids, biomass and leaf dry matter) of grain, vegetable and weedy types of amaranths (n = 76 accessions); particularly those novel materials originated from the highland areas of Sumatra-Takengon. The highest values of leaf protein and total amino acids were found in many weedy species (A. viridis, A. blitum L. and A. dubius). The ranges of leaf protein and total amino acids in most of weedy types were 12–29 g 100 g−1 DM and 84–93 g 100 g−1 DW protein, respectively. The leaves of amaranths were found to be a good source for lysine which is the limiting essential amino acids in most of cereal plants. Their values were in the range of 6 g 100 g−1 DW protein which are close to that of good protein quality according to FAO/WHO’s standard. The leaves of underutilized weedy species of A. dubius, A. blitum, A. viridis and the dual purpose types of A. caudatus L., A. cruentus L. deserve to be further exploited as a low cost solution for solving malnutrition problems, especially in Indonesia.
Keywords: Amaranthus; genetic diversity; lysine; malnutrition; nutritional values
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MDPI and ACS Style
Andini, R.; Yoshida, S.; Ohsawa, R. Variation in Protein Content and Amino Acids in the Leaves of Grain, Vegetable and Weedy Types of Amaranths. Agronomy 2013, 3, 391-403.
Andini R, Yoshida S, Ohsawa R. Variation in Protein Content and Amino Acids in the Leaves of Grain, Vegetable and Weedy Types of Amaranths. Agronomy. 2013; 3(2):391-403.
Andini, Rita; Yoshida, Shigeki; Ohsawa, Ryo. 2013. "Variation in Protein Content and Amino Acids in the Leaves of Grain, Vegetable and Weedy Types of Amaranths." Agronomy 3, no. 2: 391-403.