본 조사에서 확인된 관속식물상은 98과 310속 402종 52 변종 7품종 1아종 462종류로 확인되었다. 한반도 고유종은 국립생물자원관(2011)이 지정한 한반도고유종은 눈주목, 외대으아리 및 할미밀망 등 총 10종류가 확인되었다. 식물 구계학적 식물종은 Ⅴ등급 종은 목련과 왕벚나무로 2종, Ⅳ등급종은 산복사, 측백나무 및 꽃창포 등 3종, Ⅲ등급종 은 단풍나무, 탱자나무 및 노각나무 등 3종, Ⅱ등급 종은 석창포, 주목 및 개고사리 등 3종 그리고 Ⅰ등급 종은 이팝 나무, 회양목 및 거지덩굴 등 8종이 확인되었다. 전주지역 소류지 7곳에서 부유식물은 개구리밥과 좀개구리밥으로 2 분류군, 부엽식물은 마름, 애기마름 및 가는가래 등 6분류 군, 침수식물은 말즘과 물수세미로 2분류군 그리고 정수식 물은 고마리, 왕버들 및 논냉이 등 총 52분류군이 확인되었 다. 귀화식물종은 총 45종류로 국화과가 노랑코스모스, 미 국가막사리, 실망초 및 개망초 등 16종으로 가장 많았고, 다음은 벼과로 메귀리, 큰김의털 및 들묵새 등 7종이, 메꽃 과 4종, 현삼과 3종, 마디풀과, 명아주과, 십자화과, 콩과 및 바늘꽃과는 각 2종 그리고 자리공과, 석죽과, 비름과, 대극과 및 소태나무과 등은 각 1종씩 확인되었다. 환경부 생태계교란식물은 돼지풀, 털물참새피와 물참새피 3종류가 출현하였다. 수질은 COD 기준으로 10이 초과되는 소류지 는 구주제가 16.23, 성곡제 14.59, 황학제 13.79 및 오송제 10.66으로 매우 나쁜 상태를 보였으며, 10이하인 소류지는 지사제 9.48과 서은제 8.65로 나쁜 상태이며, 학소제만 4.74 로 보통상태였다. 소류지 생태공원 이용실태 응답자의 50% 이상이 주 2회 이하로 방문하는 것으로 응답하였으며 생태 공원을 이용함에 있어 가장 큰 이점이 약 50%의 응답자가 스트레스 해소 및 생활 활력의 증가를 꼽았다. 탐방객 중 한 부류는 위락, 편의시설이 잘 구비된 곳보다는 불편하더 라도 한적한 곳을 찾고 싶다는 응답자가 50%를 넘었다.

Background : Although ginseng has various bioactive compounds in it, there is lack of study on the variations of bioactive compounds in ginseng according to the cultivation soil and the applied fertilizer types (or amount). Therefore, this study aims to examine the variations of 37 fatty acids (FA) and 8 vitamin E (Vit-E) vitamers in 6-year-old ginseng root cultivated in different soil types with different fertilizers regimes. Methods and Results : The profiling of 37 FAs and 8 Vit-E vitamers in 6-year-old ginseng roots was measured by gas chromatography coupled with a flame ionization detector, and then these results were statistically analyzed with chemometrics. The FA and Vit-E content in ginseng roots varied significantly with respect to soil cultivation conditions due to organic fertilizer types and amounts used. Unsaturated FA in ginseng is approximately 2.7 fold higher than the saturated FA. Linoleic, palmitic, and oleic acids were the most abundant FAs found in the ginseng roots. Also, the major Vit-E vitamer found in ginseng root is α-tocopherol. In particular, the application of rice straw compost or food waste fertilizer was increased to create nutritionally desirable FAs and bioactive Vit-E in ginseng root. In addition, phytonutrient profiling coupled with chemometrics can be used to discriminate the cultivation conditions of ginseng. Conclusion : This study extends our understanding about the variations of FA and Vit-E in ginseng root depending on cultivation conditions. Hence, these results can be useful as basic information for reliable ginseng production containing high amounts of phytonutrients in a paddy-converted field.

Background : Corrosion is one of the most devastating problems faced by most industries. Mild steel has played a vital role in various fields due to the excellent mechanical properties of mild steel such as low density, high strength-to-weight ratios, good environmental stability, high thermal conductivity, and corrosion resistance. Methods and Results : The total phenolic contents (TPC) and total flavonoid contents (TFC) of the methanolic extract of C. grandiflora and R. verniciflua leaf have been examined, and its corrosion inhibition performance was investigated by weight loss and electrochemical impedance spectroscopy (EIS) and polarization measurements. The surface morphology of mild steel was analyzed by scanning electron microscopy (SEM) equipped with energy dispersive X-ray spectroscopy (EDX) and by atomic force microscopy (AFM). The percentage composition of polyphenolic compounds was found to be higher in C. grandiflora and R. verniciflua plant extracts, and it was proved to be a superior, eco-friendly, and anti-corrosive inhibitor for mild steel in 1M of H2SO4. The Tafel polarization studies indicate that the plant extract is a mixed-type inhibitor. Scanning electron microscopy/energy -dispersive X-ray spectroscopy (SEM-EDS), and atomic force microscopy (AFM) studies confirmed the formation of a protective film on the metal surface. The corrosion inhibition of the C. grandiflora and R. verniciflua plant extracts was characterized by Fourier transform infrared (FT-IR), UV-visible spectra, and wide-angle X-ray diffraction (XRD) studies; these show the strong interaction between the metal surface and the inhibitor. Conclusion : The methanolic extract was prepared the two different plants like C. grandiflora, and R. verniciflua was studied the corrosion inhibition on the mild steel specimen in acidic medium through various methods involving weight loss measurements, EIS, and potentiodynamic polarization. The results shows that the C. grandiflora, and R. verniciflua plant extracts illustrate an effective corrosion inhibitor for mild steel with good anticorrosion properties in acidic environmen

Background : Despite the presence of various bioactive compounds in ginseng, there is lack of study on the variations of bioactive compounds in ginseng according to the cultivation of soil and the applied fertilizer types (or amount). Therefore, this study aims to examine the variations of 37 fatty acids (FA) and 8 vitamin E (Vit-E) vitamers in 6-year-old ginseng root cultivated in different soil types with different fertilizers regimes. Methods and Results : The profiling of 37 FAs and 8 Vit-E vitamers in 6-year-old ginseng roots was measured by gas chromatography coupled with a flame ionization detector, and then these results were statistically analyzed with chemometrics. The FA and Vit-E content in ginseng roots varied significantly with respect to soil cultivation conditions due to organic fertilizer types and amounts used. Unsaturated FA in ginseng is approximately 2.7 fold higher than the saturated FA. Linoleic, palmitic, and oleic acids were the most abundant FAs found in the ginseng roots. Also, the major Vit-E vitamer found in ginseng root is α -tocopherol. In particular, the application of rice straw compost or food waste fertilizer was increased to create nutritionally-desirable FAs and bioactive Vit-E in ginseng root. In addition, phytonutrient profiling coupled with chemometrics can be used to discriminate the cultivation conditions of ginseng. Conclusion : This preliminary study extends our understanding about the variations of FA and Vit-E in ginseng root depending on cultivation conditions. Hence, these results can be useful as basic information for reliable ginseng production containing high amounts of phytonutrients in a paddy-converted field.