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.

Antioxidant Activity of Bacteria Associated with the Marine Sponge Tedania anhelans

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Isolation and Structural Elucidation of Antiproliferative Compounds of Lipidic Fractions from White Shrimp Muscle (Litopenaeus vannamei)

“…Even though previous studies have reported the presence of bioactive compounds in shrimp, most of these were not extracted from shrimp muscle. Antioxidant activity was detected in extracts obtained from several shrimp byproducts such as head [ 41 , 42 ] and shell [ 43 ]. Anti-inflammatory properties have been reported in shrimp shell [ 43 ] and antimutagenic activity was detected in shrimp muscle using a crude extract [ 44 ].…”

GC-MS-Based Metabolomics Analysis of Prawn Shell Waste Co-Fermentation by Lactobacillus plantarum and Bacillus subtilis

“…Currently, crustacean waste serves as the largest source of chitin or its deacetylated derivative chitosan [5]. Chitin, a polysaccharide with a similar structure to cellulose, is an N-acetyl-glucosamine biopolymer with α-1,4 bonds between each monomeric unit [6]. The isolation of chitin involves deproteinization, demineralization, and bleaching [7].…”