Antioxidant and antibacterial activities and the composition of Brazilian spearmint (Mentha spicata) extracts were evaluated. They were obtained by maceration with methanol, acetone, and dichloromethane, and the essential oil was obtained by hydrodistillation. The antioxidant activity was determined by antioxidant activity index (AAI), and the antimicrobial activity was evaluated by the diffusion method and by determination of minimum inhibitory concentration against Staphylococcus aureus and Escherichia coli. Phenolic compounds were determined by the Folin-Cioucalteu method, and the essential oil composition was identified by GC/MS. The methanolic extract showed a higher content of total phenolic compounds and stronger antioxidant activity, while only the essential oil showed antibacterial activity. The major compounds of the essential oil were carvone (67%), limonene (14.3%), muurolene (2.3%), and myrcene (2.1%). (C) 2013 Elsevier B.V. All rights reserved.
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Cent Inst Med & Aromat Plants, Field Stn, Distt US Nagar 263149, Uttar Pradesh, IndiaCent Inst Med & Aromat Plants, Field Stn, Distt US Nagar 263149, Uttar Pradesh, India
Patra, NK
Tanveer, H
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Cent Inst Med & Aromat Plants, Field Stn, Distt US Nagar 263149, Uttar Pradesh, IndiaCent Inst Med & Aromat Plants, Field Stn, Distt US Nagar 263149, Uttar Pradesh, India
Tanveer, H
Khanuja, SPS
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Cent Inst Med & Aromat Plants, Field Stn, Distt US Nagar 263149, Uttar Pradesh, IndiaCent Inst Med & Aromat Plants, Field Stn, Distt US Nagar 263149, Uttar Pradesh, India
Khanuja, SPS
Shasany, AK
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Cent Inst Med & Aromat Plants, Field Stn, Distt US Nagar 263149, Uttar Pradesh, IndiaCent Inst Med & Aromat Plants, Field Stn, Distt US Nagar 263149, Uttar Pradesh, India
Shasany, AK
Singh, HP
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Cent Inst Med & Aromat Plants, Field Stn, Distt US Nagar 263149, Uttar Pradesh, IndiaCent Inst Med & Aromat Plants, Field Stn, Distt US Nagar 263149, Uttar Pradesh, India
Singh, HP
Singh, VR
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Cent Inst Med & Aromat Plants, Field Stn, Distt US Nagar 263149, Uttar Pradesh, IndiaCent Inst Med & Aromat Plants, Field Stn, Distt US Nagar 263149, Uttar Pradesh, India
Singh, VR
Kumar, S
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Cent Inst Med & Aromat Plants, Field Stn, Distt US Nagar 263149, Uttar Pradesh, IndiaCent Inst Med & Aromat Plants, Field Stn, Distt US Nagar 263149, Uttar Pradesh, India
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Natl Cheng Kung Univ, Coll Med, Dept Environm & Occupat Hlth, Tainan 70428, Taiwan
Dr ALM Post Grad Inst Basic Med Sci, Dept Genet, Madras 600113, Tamil Nadu, IndiaNatl Cheng Kung Univ, Coll Med, Dept Environm & Occupat Hlth, Tainan 70428, Taiwan
Arumugam, Ponnan
Murugan, Rajenderan
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Univ Madras, Ctr Adv Studies CAS Bot, Madras 600025, Tamil Nadu, IndiaNatl Cheng Kung Univ, Coll Med, Dept Environm & Occupat Hlth, Tainan 70428, Taiwan
Murugan, Rajenderan
Subathra, Mahalingam
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Dr ALM Post Grad Inst Basic Med Sci, Dept Genet, Madras 600113, Tamil Nadu, IndiaNatl Cheng Kung Univ, Coll Med, Dept Environm & Occupat Hlth, Tainan 70428, Taiwan
Subathra, Mahalingam
Ramesh, Arabandi
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Dr ALM Post Grad Inst Basic Med Sci, Dept Genet, Madras 600113, Tamil Nadu, IndiaNatl Cheng Kung Univ, Coll Med, Dept Environm & Occupat Hlth, Tainan 70428, Taiwan