TY - JOUR
T1 - Antioxidant and antibacterial activity of nutraceutical compounds from Chlorella vulgaris extracted in hydrothermal condition
AU - Kitada, Kiwa
AU - Machmudah, Siti
AU - Sasaki, Mitsuru
AU - Goto, Motonobu
AU - Nakashima, Yuya
AU - Kumamoto, Shoichiro
AU - Hasegawa, Takashi
PY - 2009/1
Y1 - 2009/1
N2 - 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.
AB - 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.
KW - Antimicrobial activity
KW - Antioxidant activity
KW - Chlorella vulgaris
KW - Hydrothermal extraction
UR - http://www.scopus.com/inward/record.url?scp=70449512715&partnerID=8YFLogxK
U2 - 10.1080/01496390902729056
DO - 10.1080/01496390902729056
M3 - Article
AN - SCOPUS:70449512715
SN - 0149-6395
VL - 44
SP - 1228
EP - 1239
JO - Separation Science and Technology
JF - Separation Science and Technology
IS - 5
ER -