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Physical, Total Phenolic and Total Flavonoid Properties of Chia (Salvia hispanica L.) Seeds Grown in Kenya

Food and Nutrition Sciences 2022年第12期13卷 973-985页

作者： Pauline W. Ikumi Monica Mburu daniel njoroge Nicholas Gikonyo Benjamin Musyimi Musingi Institute of Food and Bioresources Technology Dedan Kimathi University of Technology Nyeri Kenya National Phytotherapeutics Research Centre Kenyatta University Nairobi Kenya Animal Breeding and Genomics Group Department of Animal Sciences Egerton University Egerton Kenya Department of Biological Sciences Egerton University Egerton Kenya

In the recent past, there has been an increased uptake of chia seeds (Salvia hispanica L.) by consumers resulting in the increased adoption of chia farming, particularly in Kenya whereby most farmers are practising subsistence farming and a few farming it commercially. The widespread farming of chia seeds in Kenya translates to increased uptake at household level while offering a niche for industrial processing of chia seeds necessitating the need for studies on physical, total phenolic and flavonoid properties of chia seeds grown in Kenya. The physical, total phenolic and flavonoid properties of chia seeds from two chia planning seasons April to August 2019 and September to December 2019 were evaluated. The physical attributes (length, width and thickness) were determined using a digital vernier calliper while proximate components were determined using AOAC standard methods. The Quencher procedure was used to determine the total phenolic and flavonoid contents. Chia seeds revealed a length of 1.82 to 2.32 (mm), a width of 1.15 to 1.31 (mm) and a thickness of 0.77 to 0.88 (mm). The percentage moisture content of chia seeds was 7.23 to 10.67, percentage of crude fat was 31.48 to 42.45, percentage of crude ash was 3.63 to 6.82, and percentage of crude fibre was 30.95 to 38.65 and percentage of crude protein was17.82 to 28.97. The total phenolic content observed for chia seeds was 0.73 to 0.87 mg GAE g-1 while total flavonoid content was 0.39 to 0.57 mg GAE g-1. The proximate components of chia seeds varied significantly (p < 0.05) based on the chia planting season while the physical properties, total phenolics and total flavonoid contents did not vary significantly.

关键词： Chia (Salvia hispanica L.) Seeds Properties

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