Antioxidant and antibacterial activity of nutraceutical compounds from Chlorella vulgaris extracted in hydrothermal condition

Kiwa Kitada, Siti Machmudah, Mitsuru Sasaki, Motonobu Goto*, Yuya Nakashima, Shoichiro Kumamoto, Takashi Hasegawa

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

Abstract

Water in hydrothermal condition has been used for extraction of nutraceutical compounds from Chlorella vulgaris. Hydrothermal extraction was carried out in a semi-batch and a batch extractor at various temperatures (120-200 C), pressures (2-10MPa), and extraction times (30-300min) to extract anti-oxidant and antibacterial compounds. The effect of extraction condition on the yield of extract was investigated. The antioxidant and antibacterial activity of extracts obtained by hydrothermal extraction were examined. The increasing extraction temperature resulted in higher antioxidant activity, but lower antimicrobial activity. As comparison with hot water extraction, the antioxidant activity of extract obtained by hydrothermal extraction was higher than that obtained by hot water extraction, but the antibacterial activity of the extract obtained by hydrothermal extraction was lower.

Original languageEnglish
Pages (from-to)1228-1239
Number of pages12
JournalSeparation Science and Technology
Volume44
Issue number5
DOIs
Publication statusPublished - Jan 2009

Keywords

  • Antimicrobial activity
  • Antioxidant activity
  • Chlorella vulgaris
  • Hydrothermal extraction

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