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This study was conducted to clarify the effect of eucalyptus essential oil mixed with milk casein peptide food for human physiological relaxation. Fifteen male university students (21.2 ± 0.9 yr) participated in study as subjects. The subjects were given one of two types of experimental drink (peptide + eucalyptus flavor (Pep + EF), and peptide + grapefruit·orange flavor (Pep + G·O), each flavor contains natural essential oil). We measured the change in salivary cortisol concentration and POMS scores before and two hours after taking experimental drink. The results of a Type A behavior pattern test were used to classify subjects. The concentration of salivary cortisol decreased significantly two hours after taking Pep + EF. And Type B showed bigger change than Type A. In conclusion, the results show that eucalyptus essential oil has the effect of relaxation, and that the effects on Type A and Type B are different.
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Park,
Chiba University, Center for Environment, Health and Field Sciences, 277-0882 Kashiwa, Chiba, Japan
E-mail:
bjpark@faculty.chiba-u.jp
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Morikawa,
Chiba University, Center for Environment, Health and Field Sciences, 277-0882 Kashiwa, Chiba, Japan
E-mail:
tm@nn.jp
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Ogata,
Chiba University, Center for Environment, Health and Field Sciences, 277-0882 Kashiwa, Chiba, Japan
E-mail:
to@nn.jp
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Washida,
Chiba University, Center for Environment, Health and Field Sciences, 277-0882 Kashiwa, Chiba, Japan
E-mail:
kw@nn.jp
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Iwamoto,
Chiba University, Center for Environment, Health and Field Sciences, 277-0882 Kashiwa, Chiba, Japan
E-mail:
mi@nn.jp
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Nakamura,
Chiba University, Center for Environment, Health and Field Sciences, 277-0882 Kashiwa, Chiba, Japan
E-mail:
hn@nn.jp
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Miyazaki,
Chiba University, Center for Environment, Health and Field Sciences, 277-0882 Kashiwa, Chiba, Japan
E-mail:
ym@nn.jp