Psychophysiological Responses of Humans during Seed-Sowing Activity Using Soil Inoculated with Streptomyces rimosus
Na-Yoon Choi,
Sin-Ae Park,
Ye-Rim Lee and
Choong Hwan Lee ()
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Na-Yoon Choi: Department of Bio and Healing Convergence, Graduate School, Konkuk University, Seoul 05029, Republic of Korea
Sin-Ae Park: Department of Bio and Healing Convergence, Graduate School, Konkuk University, Seoul 05029, Republic of Korea
Ye-Rim Lee: Department of Bioscience and Biotechnology, Konkuk University, Seoul 05029, Republic of Korea
Choong Hwan Lee: Research Institute for Bioactive-Metabolome Network, Konkuk University, Seoul 05029, Republic of Korea
IJERPH, 2022, vol. 19, issue 23, 1-14
Abstract:
Electroencephalogram (EEG) responses and serum metabolite levels were used to investigate the effects of horticultural activities (seed-sowing) on the psychophysiological aspects of adults based on the presence or absence of the soil microorganism Streptomyces rimosus . In this case, 31 adults were subjected to seed-sowing activities using S. rimosus inoculated (experimental group) and medium (control group) soils. EEG was measured to analyze the resulting psychophysiological response, and blood samples (5 mL) were collected. The relative gamma power (RG), relative high beta (RHB), and SEF 50 and SEF 90 were significantly higher in the right than in the left occipital lobe ( p < 0.05). In both occipital lobes, ratios of SMR to theta (RST), mid beta to theta (RMT), and SMR-mid beta to theta (RSMT) were high ( p < 0.05). GC-TOF-MS-based serum metabolite analysis detected 33 metabolites. Compared to the control group, the experimental group showed a lower content of amino acids (except aspartic acid), lipids, and C6 sugar monomers after the activity ( p < 0.05). Aminomalonic acid was decreased, and aspartic acid was increased ( p < 0.05). This study confirmed a positive effect on improving the concentration and attention of adults when seed-sowing activity was performed using S. rimosus -inoculated soil.
Keywords: soil microorganism; electroencephalogram; serum metabolites; GC-TOF-MS; horticultural therapy; psychophysiology; gardening; geosmin; metabolite profiling (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2022
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