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Biochemical Composition of Marine Microalgae and Their Potential Antimicrobial Activity

Journal of fisheries science and technology, v.4 no.2, 2001년, pp.75 - 83  

Kim Se-Kwon (Department of Chemistry, Pukyong National University) ,  Jeon You-Jin (Faculty of Applied Marine Science, Cheju National University) ,  Kim Won-Suk (Binex Co. Ltd., R&D Center) ,  Back Ho-Cheol (Department of Chemistry, Pukyong National University) ,  Park Pyo-Jam (Department of Chemistry, Pukyong National University) ,  Byun Hee-Guk (Department of Chemistry, Pukyong National University) ,  Bai Sungchul C. (Department of Aquaculture, Pukyong National University)

Abstract AI-Helper 아이콘AI-Helper

This study is to investigate biochemical compositions of two species of marine microalgae, Chlorella ellipsoidea of Chlorophyta and Tetraselmis suecica of Prasinophyta, and to assess their potential antimicrobial activities. Crude protein, lipid and carbohydrate for C. ellipsoidea were $43.15\%...

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제안 방법

  • In order to evaluate the usefulness of the microalgae, Chlorella ellipsoidea and Tetraselmis suecica as a functional material, the biochemical composition was preferentially analysed in terms of proximate chemical composition, sugar composition of the polysaccharides, mineral composition, and vitamin composition.
  • In this study, we selected two marine microalgae, Chlorella ellipsoidea of Chlorophyta and Tetrasel- mis suecica of Prasinophyta that can be massively cultivated, and investigated biochemical compositions and antimicrobial activity.

대상 데이터

  • Marine microalgae used in this study were Chlorella ellipsoidea of Chlorophyta and Tetraselmis suecica of Prasinophyta obtained from Korean Microalgae Collection Center of Pukyong National University (Pusan, Korea). The two microalgae were cultured using F/2 culture medium under 20℃, 30 PPT, 6, 000 Lux, 24L:D = 24:O.

이론/모형

  • Proximate compositions of the microalgae were determined according to AOAC method (1990). Crude protein was determined by semi-micro Kjel- dahl method (nitrogen contentX 6.25), crude lipid was performed by Soxhlet method, and crude carbohydrate was determined by phenol-sulfuric acid reaction (absorbance at 470 nm, using glucose as the calibration standard). In addition, crude ash was carried out at 550℃ of the dry-type of furnace and mineral analysis was performed using HP~4500 ICP (inductively coupled plasma, Hewlett Packard, USA) with the crude ash dissolved in 0.
  • Proximate compositions of the microalgae were determined according to AOAC method (1990). Crude protein was determined by semi-micro Kjel- dahl method (nitrogen contentX 6.
  • The assay of various vitamin was performed according to AOAC method (1990).
  • Antibacterial activity of the fractions obtained from the two marine microalgae was examined against 15 strains of bacteria including five gram-negative bacteria (Escherichia coli KCTC 1682, Escherichia coli 0-157 ATCC 11775, Salmonella typhi KCTC 2424, Pseudomonas aeruginosa KCTC 1750, Vibrio para- haemolyticus ATCC 17802), nine gram-positive bacteria (Streptococcus mutans KCTC 3065, Micrococcus luteus KCTC 10240, Staphylococcus aureus ATCC 6538P, Staphylococcus epidermidis KCTC 1917, Bacillus subtilis KCTC 1028, Lactobacillus bulgaricus KCTC 3188, Lactobacillus casei KCTC 3189, Lactobacillus fennentum KCTC 3112, Streptococcus faecalis ATCC 10541) and a yeast (Can-dida albicans KCTC 1940). The assay was carried out by the colony count method on agar plate according to Jeon et al. (2001). The mixture of 0.
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