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Screening Antimicrobial Peptides from Hydrolysates of Sunflower Seed Meal Protein Hydrolyzing with Proteases

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Antimicrobial peptides were obtained from the protein of sunflower seed meal (SSM) treated with three kinds of proteases. Only the hydrolysate of sunflower seed meal protein (SSMP) treated by pepsin could appear zones of inhibition on the MRS agar plates for Escherichia coli, Staphylococcus aureus and Bacillus subtillis, and the hydrolysates obtained by trypsin and papain were with little antimicrobial activities. Three fractions of peptides of SSMP hydrolysis by pepsin with molecular weight (MW) <3500 Da (P1), 3500 Da to 5000 Da (P2), and >5000 Da (P3) were obtained by dialysis separation. The zones of inhibition tests of the three fractions showed that all the three fractions possessing antimicrobial activities exhibited the inhibition zones, but their inhibitory activities were distinctly lower in comparison with the unseparated ones.
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Document Type: Research Article

Publication date: 01 October 2017

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  • The goal of the creation of a biobased economy is challenging to agriculture, forestry, academia, government and industry. The extractable resources of the Earth are finite, regardless of the quibble over when they will be depleted. The economic, political and social demands for biobased chemicals, materials and energy are expected to radically transform the materials industries, particularly the plastics industry as well as the biofuel industry. These changes will be based on the principles of sustainability, eco-efficiency, industrial ecology, and green chemistry and engineering. In keeping with the growth of knowledge in this field, there is a strong need for a forum to share original research related to biobased materials and bioenergy. The Journal of Biobased Materials and Bioenergy (JBMB) has been created as an international peer-reviewed periodical to fulfill the need for communication in these research areas. This journal will encompass related research activities in all fields of science, engineering and the life sciences.
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