کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8070920 1521389 2018 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Deciphering biostimulation strategy of using medicinal herbs and tea extracts for bioelectricity generation in microbial fuel cells
ترجمه فارسی عنوان
اتخاذ استراتژی بیوسیستولاسیون استفاده از گیاهان دارویی و عصاره چای برای تولید بیوالکتریک در سلولهای سوختی میکروبی
کلمات کلیدی
چای کاملیا، گیاهان دارویی، سلولهای سوختی میکروبی، شاتل الکترونی، آنتی اکسیدان های پلی فنولی،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی (عمومی)
چکیده انگلیسی
This first-attempt study revealed optimal strategy to supplement extracts of polyphenolics-abundant medicinal herbs and Camellia tea as electron shuttles (ESs) for stimulating bioenergy generation in microbial fuel cells (MFCs). Apparently, Camellia sinensis (L.) Kuntze and Syzygium aromaticum were promising electroactive ESs. Moderate temperature (ca. 65 °C) and slightly alkali pHs (∼10) were electrochemically feasible conditions for herbal extraction. Optimal contents of polyphenolics-rich herbs and tea extracts with maximal electrochemical activities could be stably obtained. Power density of MFC supplemented with Camellia green tea extract could significantly increase ca. 176%, suggesting that green tea extract would be the most appropriate ESs. Total phenolic contents and electron shuttling capabilities were all electrochemically associated. In addition, chemical structure strongly affected whether antioxidant activities of polyphenolics-abundant herbal extracts could be reversibly switched to be electron-shuttling capabilities (e.g., substitution patterns). Hydroxyl substiutuents ortho or para to each other were very likely promising for electron-shuttling, but not for meta substituents. Moreover, bioelectrochemical treatment upon medicinal herbal extracts (e.g., cyclic electron-donating and withdrawing processes) might be inevitably needed for toxicity attenuation to fully express bioenergy-shuttling activities.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy - Volume 161, 15 October 2018, Pages 1042-1054
نویسندگان
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