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Title: The effects of temperature and frequencies in ultrasound assisted extraction of phycocyanin from microalgae Spirulina sp

Microalgae Spirulina sp has been identified as source of protein and other high added value compounds. One of the compounds is phycocyanin as also known for antioxidant use. The extraction of this compound by using conventional method (soxhlet extraction) resulted low yield and longer processing time. This research was aimed to extract phycocyanin by using an extraction assisted by ultrasound irradiation. The extraction was performed by using variable of ultrasound frequency and extraction temperature and ethanol was used as a solvent. The result showed that yield of phycocyanin extracted by conventional method was 11.13% while the ultrasound irradiation could increase the yield up to 15.61% at constant frequency of 42 kHz, while the optimum temperature was obtained at 45°C. The analysis of variable interactions showed that both temperature and time has an interaction and temperature was the highest variable in increasing the yield. The conclusion of this research was the ultrasound could improve significantly the efficiency of extraction as well as activity of phycocyanin extracted from microalgae.
Authors:
; ; ;  [1] ;  [2] ;  [3]
  1. Department of Chemical Engineering, Diponegoro University, Jl. Prof. Soedarto, SH-Tembalang, Semarang 50239 INDONESIA (Indonesia)
  2. Physic Department, Faculty of Science and Mathematics, Diponegoro University (Indonesia)
  3. Chemistry Department, Faculty of Science and Mathematics, Diponegoro University (Indonesia)
Publication Date:
OSTI Identifier:
22494457
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1699; Journal Issue: 1; Conference: International conference of chemical and material engineering (ICCME) 2015: Green technology for sustainable chemical products and processes, Semarang (Indonesia), 29-30 Sep 2015; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ANTIOXIDANTS; EFFICIENCY; ETHANOL; INTERACTIONS; IRRADIATION; PHYCOCYANIN; PROCESSING; SOLVENT EXTRACTION; SOLVENTS; TEMPERATURE RANGE 0273-0400 K; ULTRASONIC WAVES; YIELDS