A simple process for recovery of a stream of products from marine macroalgal biomass. (March 2016)

• Record Type: Journal Article
• Authors: Baghel, Ravi S.; Trivedi, Nitin; Reddy, C.R.K.
• Is Part Of: Bioresource technology. Volume 203(2016)
• Page Start: 160
• Page End: 165
• Publication Date: 2016-03
• Subjects: Bioethanol -- Biorefinery -- Gracilaria -- Macroalgae -- Renewable chemicals; 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.2015.12.051
• Languages: English
• ISSNs: 0960-8524

Abstract

Graphical abstract: Highlights: High throughput and integrated process. Densification of product mixture with successive process progress. No acid and alkali application. Process comprises of maximum water extraction steps. Effective utilization of total biomass without any leftover solid waste. Abstract: The present study describes a simple process for recovering a stream of products sequentially including bioethanol from the fresh biomass of the red seaweed Gracilaria corticata . From processing of 100 g fresh biomass (∼12.2 g dry), 166 ± 3 μg/g R-phycoerythrin, 126 ± 4 μg/g R-phycocyanin can be realized on fresh weight basis, and 1.41 ± 0.03% crude lipid, 22.45 ± 0.53% agar, 12.39 ± 0.85% soil conditioner, 2.89 ± 0.04% bioethanol on dry weight basis along with 318 ± 3 ml of mineral rich liquid with possible fertilizer applications. The advantages of this process are complete utilization of feedstock without compromising the yield and quality of products, reusability of solvents and no solid waste. Further, the products recovered from one ton fresh biomass were found to have an estimated market value of USD 1051 while processing cost including raw material as 241 USD, a fourfold value addition of feedstock.