Optimization of Oleoresin Extraction fromCurcuma longaL. Using RSM and Determination of Equilibrium Constant

Autor:	G.C. Majumdar, Hari Niwas Mishra, Swarrna Haldar
Rok vydání:	2016
Předmět:	Chromatography biology General Chemical Engineering 010401 analytical chemistry Extraction (chemistry) Analytical chemistry 04 agricultural and veterinary sciences General Chemistry Quadratic function biology.organism_classification 040401 food science 01 natural sciences 0104 chemical sciences chemistry.chemical_compound 0404 agricultural biotechnology chemistry Yield (chemistry) Oleoresin Response surface methodology Particle size Curcuma Equilibrium constant Food Science Mathematics
Zdroj:	Journal of Food Processing and Preservation. 40:1188-1198
ISSN:	0145-8892
DOI:	10.1111/jfpp.12701
Popis:	The effect of independent variables of Soxhlet extraction; temperature (35–55C), solvent-to-solid ratio (5–25, g/g) and particle size (0.15–0.6 mm) on oleoresin yield (% db), curcumin yield (% db) as well as total phenolic content (TPC) of extracts was investigated. Response surface methodology was used for optimization and the high correlation of the mathematical models indicated that a quadratic polynomial model could be used for optimization of the investigated responses. Multiresponse optimization study indicated that the optimum conditions for the extraction were extraction temperature 48.94C, solvent-to-solid ratio 20.95 and particle size 0.24 mm. The optimized conditions yielded 9.57% of oleoresin (db), 3.33% curcumin (db) and TPC 13.73 mg GAE/g. From the initial data of optimization, equilibrium studies were conducted considering the optimum particle size (0.24 mm) in a batch extractor at different temperatures ranging from room temperature (28C) to 50C. The equilibrium constant varied between 4.39 and 13.71 under these temperatures. Practical Application In this manuscript, response surface methodology approach has been used as an important research tool to evaluate the effect of different process variables on oleoresin extraction from turmeric. Also, an insight into equilibrium distribution relationship will help in equipment design and scaling up the extraction process.
Databáze:	OpenAIRE
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