title: Antioxidant properties of bio-active substances from shrimp head fermented by Bacillus licheniformis OPL-007.
abstract: Antioxidative activities were found in the culture supernatant of Bacillus licheniformis OPL-007 using shrimp head waste (SHW) as the sole carbon and nitrogen source. After optimizing fermentation conditions, some bio-active substances were determined from the broth. The contents of total phenols, polysaccharides, reducing sugars, free amino acids, and organic acids were 888.80, 402.74, 85.88, 2,061.79, and 5,426.74 mg/l, respectively. Moreover, the fermentation liquid was found rich in eight essential amino acids and non-protein amino acids. The antioxidant activity of the culture supernatant, in terms of the scavenging activity of DPPH radicals, reducing power, and metal chelating ability, was monitored, and the fermentation liquid showed a strong antioxidant capacity. The results indicate that bio-deproteinization of SHW by B. licheniformis OPL-007 can increase its antioxidant activity, and SHW has the potential application in the production of functional foods.
authors.affiliation: College of Food Science and Engineering, Ocean University of China, Qingdao, 266003, China, xzhmao@ouc.edu.cn.
authors.forename: Xiangzhao
authors.initials: X
authors.lastname: Mao
authors.forename: Pei
authors.initials: P
authors.lastname: Liu
authors.forename: Shuai
authors.initials: S
authors.lastname: He
authors.forename: Jieling
authors.initials: J
authors.lastname: Xie
authors.forename: Feifei
authors.initials: F
authors.lastname: Kan
authors.forename: Chunyu
authors.initials: C
authors.lastname: Yu
authors.forename: Zhaojie
authors.initials: Z
authors.lastname: Li
authors.forename: Changhu
authors.initials: C
authors.lastname: Xue
authors.forename: Hong
authors.initials: H
authors.lastname: Lin
mesh_terms: D000818:Animals; D000975:Antioxidants / Q000737:chemistry* / Q000378:metabolism; D001407:Bacillus / Q000378:metabolism*; D001711:Biotransformation; D003470:Culture Media / Q000737:chemistry / Q000378:metabolism; D005285:Fermentation; D007218:Industrial Microbiology; D033561:Penaeidae / Q000378:metabolism / Q000382:microbiology*; D014866:Waste Products / Q000032:analysis
chemical_list: D000975:Antioxidants; D003470:Culture Media; D014866:Waste Products