Volume 4, Issue 1, March 2020, Page: 23-30
Effect of Ethanol on Physical Chemistry Characterization, Microorganism, and Toxicity of Carrageenan Extracted with the Assistant of Enzyme Viscozyme L
Bui Huy Chich, Department of Science and Technology, Ba Ria-Vung Tau Province, Vung Tau, Vietnam
Do Van Ninh, Pacific Ocean University, MOET, Nha Trang, Vietnam
Vu Ngoc Boi, Faculty of Food Technology, Nha Trang University, Nha Trang, Vietnam
Dang Xuan Cuong, Organic Matterial from Marine Resource, Nhatrang Institute of Technology Application and Research, Vietnam Academy of Science and Technology, Nha Trang, Vietnam
Received: Mar. 17, 2020;       Accepted: Apr. 3, 2020;       Published: Apr. 29, 2020
DOI: 10.11648/j.wjfst.20200401.14      View  323      Downloads  56
Carrageenan is a biopolymer found in red algae with high potential in food, functional food, pharmaceutics, and cosmetics. The study focused on the effect of ethanol on physical chemistry characterization and microorganisms of carrageenan that extracted by the enzyme – assisted method and the purification by using ethanol. The results showed the moisture of carrageenan varied from 10.9 to 9.5% DW. After the impact of ethanol, the purification and physical (dispersal in water and rheological) characterization of carrageenan was higher than before the impact of ethanol. For example, dispersal in water, the viscosity of the solution, the solution strength (1.5% of carrageenan and 0.2% of potassium chloride), and carbohydrate content at 20°C corresponded to 1.06, 1.18, 1.07, and 1.11 times, compared to before the impact of ethanol. The content of ethanol-insolubility impurities, total ash, acid-solubility ash, acid-insolubility ash, total protein, sunphat content (SO42-), and lipid content was 43%, 94.6%, 42.9%, 44.44%, 3.9%, 97.2%, and none-detected in comparison to before the impact of ethanol. The content of lead, arsenic, cadmium, and mercury was 0.01, < 0.01, 0.05, and < 0.01 ppm, respectively. Total aerobic bacterial of carrageenan got the highest value of 2.1 x 102 cells/g. E. coli, coliforms, staphylococcus aureus, salmonella, and bacillus cereus did not occur in carrageenan.
Carrageenan, NMR, Rheology, Mineral, Kappaphycus alvarezii, Cam Ranh
To cite this article
Bui Huy Chich, Do Van Ninh, Vu Ngoc Boi, Dang Xuan Cuong, Effect of Ethanol on Physical Chemistry Characterization, Microorganism, and Toxicity of Carrageenan Extracted with the Assistant of Enzyme Viscozyme L, World Journal of Food Science and Technology. Special Issue: Marine Bio-Polymer: Bio-Activity, Extraction and Application. Vol. 4, No. 1, 2020, pp. 23-30. doi: 10.11648/j.wjfst.20200401.14
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