Integration of protein extraction with a stream of byproducts from marine macroalgae: A model forms the basis for marine bioeconomy. (November 2017)

• Record Type: Journal Article
• Authors: Gajaria, Tejal K.; Suthar, Poornima; Baghel, Ravi S.; Balar, Nikunj B.; Sharnagat, Preeti; Mantri, Vaibhav A.; Reddy, C.R.K.
• Is Part Of: Bioresource technology. Volume 243(2017)
• Page Start: 867
• Page End: 873
• Publication Date: 2017-11
• Subjects: Algal salt -- Integrated biorefinery -- Nutritional supplement -- Sustainable process -- Ulvan; Biomass -- Periodicals; Biomass energy -- Periodicals; Bioremediation -- Periodicals; Agricultural wastes -- Periodicals; Factory and trade waste -- Periodicals; Organic wastes -- Periodicals; Bioénergie -- Périodiques; Déchets agricoles -- Périodiques; Déchets industriels -- Périodiques; Déchets organiques -- Périodiques; Déchets (Combustible) -- Périodiques; 662.88
• DOI: 10.1016/j.biortech.2017.06.149
• Languages: English
• ISSNs: 0960-8524

Abstract

Graphical abstract: Highlights: Biorefinery approach for integrated extraction of proteins from marine macroalgae. The digestibility of protein is more than 85% based on in vitro enzyme hydrolysis. Sap extraction was optimized for effective recovery of constituents from biomass. Abstract: The present study describes an advanced biorefinery model for marine macroalgae that assumes significant importance in the context of marine bio-economy. The method investigated in this study integrates the extraction of crude proteins with recovery of minerals rich sap, lipids, ulvan and cellulose from fresh biomass of Ulva lactuca . The protein content extracted was 11 ± 2.12% on dry weight basis with recovery efficiency of 68.75 ± 4.01%. The amino acid composition of crude protein fraction showed iso-leucine as the most abundant amino acid with 16.51 ± 0.03% followed by histidine, arginine, tyrosine, serine, aspartic acid, threonine, phenyl alanine, leucine, alanine, lysine, glycine and glutamic acid (0.22 ± 0.24%). The digestibility of protein was as high as 85.86 ± 5.92% indicating its suitability for use in food supplements. The protein production with co-recovery of other products would not only result in effective utilisation marine macroalgal resources but also forms the basis for marine bio-economy.