2019
DOI: 10.1007/s13762-018-02204-3
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Marine shell industrial wastes–an abundant source of chitin and its derivatives: constituents, pretreatment, fermentation, and pleiotropic applications-a revisit

Abstract: Unscientific dumping of shellfishery waste is a major environmental concern worldwide and a serious threat to the coastal area. The shell wastes constitute of many commercially valuable products, such as, chitin, calcium carbonate, proteins, and carotenoids. Processing of shell wastes is a source of wealth. Chitin is one of the constituents of the shell wastes and also the most abundant biopolymer next to the cellulose. Calcium carbonate and proteins are the other valuable constituents of the shell wastes and … Show more

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Cited by 68 publications
(31 citation statements)
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“…This factor must be considered by nutritionists when using this food, since an imbalance between these minerals could compromise animal metabolism. Crustacean shells have between 30% and 50% of calcium-based compounds, such as carbonates and phosphates, which may limit their use in broiler diets (Suryawanshi et al, 2019). Calcium intake above requirements results in decreased plasma parathyroid hormone concentration through a negative feedback mechanism that would affect the absorption of Ca and P (Proszkowiec-Weglarz & Angel, 2013).…”
mentioning
confidence: 99%
“…This factor must be considered by nutritionists when using this food, since an imbalance between these minerals could compromise animal metabolism. Crustacean shells have between 30% and 50% of calcium-based compounds, such as carbonates and phosphates, which may limit their use in broiler diets (Suryawanshi et al, 2019). Calcium intake above requirements results in decreased plasma parathyroid hormone concentration through a negative feedback mechanism that would affect the absorption of Ca and P (Proszkowiec-Weglarz & Angel, 2013).…”
mentioning
confidence: 99%
“…Therefore, in conclusion, the optimized concentration of HCl is 2.0 M for the demineralization process of the crab shell samples. Several previous studies conducted by several authors globally, however, the optimized acid concentrations for demineralization process are not similar [ 23 ]. Their optimized concentration of HCl for demineralization process of the marine waste samples is different from each other' or even from our results, even though, they used the same method for the demineralization process of marine samples and the same process was used for the quantification of minerals in the demineralized crab shell samples by using ICP-OES analysis [ 14 ].…”
Section: Discussionmentioning
confidence: 99%
“…For commercial purposes, chitin is extracted using chemical, electrochemical and biochemical methods from the cuticles of crustaceans, mostly crabs and shripms [19][20][21][22][23][24] and corals [25]. It is isolated by chemical extraction via three stages, i.e., deproteinization by alkaline treatment, i.e., employing NaOH, Na 2 CO 3 , NaHCO 3 , KOH, K 2 CO 3 , demineralization using acidic (i.e., HCl, HNO 3 , H 2 SO 4 , CH 3 COOH), or EDTA-based solutions [26], and finally discoloration following the incubation in alkaline solution or by the addition of acetone or, alternatively, using KMnO 4 , H 2 O 2 [27] or oxalic acid [12,28].…”
Section: Chitin Extraction/physical Form After Extractionmentioning
confidence: 99%