栅藻B38营养成分分析及蛋白质营养价值评价

doi:10.16378/j.cnki.1003-1111.2020.01.013

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Abstract The nutritional composition of green alga Scenedesmus (Desmodesmus) armatus B38 separated from tropical freshwater area in Hainan was analyzed and the protein value of the alga was assessed by essential amino acid index (EAAI), ratio of essential amino acids (AAS), ratio coefficient of amino acids (RC), score of ratio coefficient (SRC), and compactness to provide reference for the comprehensive utilization of the alga. The results showed that the green alga B38 was rich in oil (14%), carbohydrates (13.86%), fiber (3.52%), and ash (4.28%) and high in protein (49.0%). There were 23 kinds of fatty acids, with total amino acid content of 852.58 mg/g protein, 47.45% of essential amino acids in the microalga B38, with EAAI of 85.42%. The two models indicated that the AAS were close to each other, both above 65, and the amino acid quality of the substance was close to 1 (0.93 and 0.88) in close proximity to the model protein. A total of 23 mineral elements were detected from the microalga B38, with abundant contents of sodium, potassium, calcium, magnesium, iron and aluminum. The content of heavy metals was found to be lower than the national food hygiene standards, and the amounts of vitamin B₃ (106.02 mg/100 g) and vitamin E (540.77 mg/100 g) in the microalga B38 was higher, which is rich in nutrients and can be further developed and utilized.

Key words： Scenedesmus (Desmodesmus) armatus B38 nutritional composition evaluation of nutritional value compactness

Received: 05 July 2018

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	Articles by authors
	CAO Meng
	WANG Shenglin
	LIU Pinghuai
	PAN Xiaoyan
	WANG Xiuhai

Cite this article:

CAO Meng,WANG Shenglin,LIU Pinghuai, et al. Nutritional Composition and Evaluation of Protein in Green AlgaScenedesmus (Desmodesmus) armatus B38[J]. Fisheries Science, 2020, 39(1): 103-110.

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https://www.shchkx.com/EN/10.16378/j.cnki.1003-1111.2020.01.013 OR https://www.shchkx.com/EN/Y2020/V39/I1/103

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