期刊
CARBOHYDRATE POLYMERS
卷 89, 期 4, 页码 1283-1288出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2012.04.051
关键词
Chitin; Shrimp waste; Lactic acid bacteria; Minerals; Protein; Removal
资金
- Administration of Ocean and Fisheries of Guangdong Province [A200899A01]
- Administration of Science and Technology of Guangdong Province, P.R. China [20108090400295]
The epiphytic Lactobacillus acidophilus SW01 isolated from shrimp waste (SW) was used in SW fermentation. During the fermentation the lag phase of SW01 was hardly observed. The pH of the fermentation broth decreased to 3.86 within 12 h and reached the lowest point at 3.73 after 48 h. This indicates a quick and deep acidification process by SW01. Besides. SW01 was observed to have high protease activity. As a result, the minerals and protein in SW were quickly removed with their contents decreasing to 0.73% and 7.8% respectively after 48 h fermentation. In the pilot scale fermentation, the pH was 3.99 and 3.86 respectively after 12 and 24 h fermentation. The mineral and protein contents were 0.98% and 8.44% respectively after 48 h fermentation. The residue of the fermented SW contains less than 1% minerals and can be easily transformed into chitin by a mere bleaching treatment. (C) 2012 Elsevier Ltd. All rights reserved.
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