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Preparation of Nanomaterial Wettable Powder Formulations of Antagonistic Bacteria from Phellodendron chinense and the Biological Control of Brown Leaf Spot Disease
Yanling Zeng, Han Liu, Tianhui Zhu, Shan Han, Shujiang Li 한국식물병리학회 The Plant Pathology Journal 17 Pages
한국식물병리학회 The Plant Pathology Journal 2021, 37권 3호 2 215-231 (17 pages)
and conditions improved the inhibitory effect of B. megaterium JKB05 on N. guilinensis: 2% glucose, 0.1% soybean powder, 0.1% KCl, and 0.05% MgSO 4; initial concentration 6 × 10 6 cfu/ml, and a 42-h optimal fermentation time. A composite of 0.1% nano-SiO2 JKB05 improved the thermal stability, acid-base stability and ultraviolet resistance by 16%, 12%, and 38.9%, respectively, and nano-SiO... stability, acid-base stability and ultraviolet resistance by 16%, 12%, and 38.9%, respectively, and nano-SiO2 was added to the fermentation process. The best formula for the wettable powder was 35% kaolin, 4% polyethylene glycol, 8% Tween, and 2% humic acid. The following quality test results for the wettable powder were obtained: wetting time 87.0 s, suspension rate 80.33%, frequency of microbial contamination 0.08%, pH 7.2, fineness 95.8%, drying loss 1.47%, and storage stability ≥83.5%. A... -
Electrochemical synthesis of nanosized hydroxyapatite/graphene composite powder
Vesna Mi?kovi?-Stankovi?, Sanja Erakovi?, Ana Jankovi?, Maja Vuka?inovi?-Sekuli?, Miodrag Mitri?, Young Chan Jung, Soo Jin Park, Kyong 한국탄소학회 Carbon Letters 8 Pages
한국탄소학회 Carbon Letters 2015, Vol.16 No.4 2 233-240 (8 pages)
Raman spectroscopy, Fourier transform infrared spectroscopy and X-ray diffraction confrmed graphene incorporation in the HAP/Gr powder. The electrochemically prepared HAP/Gr composite powder exhibited slight antibacterial effect against the growth of the bacterial strain Staphylococcus aureus. Key words: graphene, hydroxyapatite, electrochemical synthesis, composites, antibacterial activity 1.... Electrochemical synthesis was employed to prepare a novel hydroxyapatite/graphene (HAP/ Gr) composite powder suitable for medical applications as a hard tissue implant (scaffold). The synthesis was performed in a homogeneous dispersion containing Na2H2EDTA·2H2O, NaH2PO4 and CaCl2 with a Ca/EDTA/PO4 3? concentration ratio of 0.25/0.25/0.15M, along with 0.01 wt% added graphene nanosheets, at a current density of 137 mA cm?2 and pH value of 9.0. The field emission scanning electron microscopy and... -
Method and mechanism of dispersing agent free dispersion of short carbon fibers in silicon carbide powder
Thakur Sudesh Kumar Raunija, Mariamma Mathew, Sharad Chandra Sharma 한국탄소학회 Carbon Letters 7 Pages
한국탄소학회 Carbon Letters 2014, Vol.15 No.3 4 180-186 (7 pages)
March 2014 Accepted 27 June 2014 *Corresponding Author E-mail: thakurskr@gmail.com Open Access pISSN: 1976-4251 eISSN: 2233-4998 Carbon Letters Vol. 15, No. 3, 180-186 (2014) Original Articles Article Info Copyright Korean Carbon Society http://carbonlett.org Abstract This study highlights a novel method and mechanism for the rapid and effective milling of carbon fbers (CFs) in silicon carbide... A wide range of CFs loading, from 10 to 50 vol%, was studied. The milling of CFs and SiC powder was checked by measuring the average particle size of the composite powders. The dispersivity of CFs in SiC powder was checked through scanning electron microscope. The results show that the usage of exfoliated CF tows resulted in a rapid and effective milling of CFs and SiC powder. The results further show an excellent dispersion of CFs in SiC powder for all CFs loading without any dispersing agent. -
Trial to Identify Irradiated Corn Powder by Viscometric and Pulsed Photostimulated Luminescence (PPSL) Methods
Yi. Sang-Duk, Chang. Kyu-Seob, Yang. Jae-Seung 한국식품위생안전성학회 한국식품위생안전성학회지 6 Pages
한국식품위생안전성학회 한국식품위생안전성학회지 2001, Vol.16 No.1 82-87 (6 pages)
본 연구는 점도 측정법과 광여기발광법을 이용하여 방사선 조사된 옥수수분말의 검지를 시도하였으며, 이전의 연구에서 수행되지 않은 다양한 rpm에서의 검지 가능성과 저장기간에 따른 광여기발광의 변화를 검토하였다. 실험에 사용된 옥수수분말은 polyethylene bag으로 포장하였고, Co-60 감마선 조사시설을 이용하여 1, 2, 3, 5, 7, 10 및 15kGy로 조사하였다. 점도측정 시료는 증류수를 가하여 현탁하고 알카리화 한 후에 RV 3 spindle이 장착된 Brookfield DV-III rotation viscometer를 이용하여 3$0^{circ}C$에서 30초 동안 30,... -
Transmission electron microscopy for characterization of acrosomal damage after Percoll gradient centrifugation of cryopreserved bovine spermatozoa
Letícia Z. Oliveira*, Vera F. M. Hossepian de Lima, Marcelo A. Levenhagen, Ricarda M. dos Santos, Terezinha I. Assumpç 대한수의학회 Journal of Veterinary Science 6 Pages
대한수의학회 Journal of Veterinary Science 2011, 제 12권 제 3호 10 267-272 (6 pages)
medium 10× concentrated (DMEM 10×; Gibco, USA), complemented with 0.01 g/L gentamicin (Gibco, USA) and 6 mM HEPES (Sigma-Aldrich, USA). The DMEM 10× was prepared by diluting the amount of powder needed to prepare 1 L in 100 mL of double-distilled ultrapure water (Milli Q System; Millipore, USA). The solution was then filtered through a 0.22-μm membrane and stored at 4 o C for 3 days. A... The objective of this study was to characterize acrosomal ultrastructure following discontinuous Percoll gradient centrifugation of cryopreserved bovine sperm. Semen was collected from six bulls of different breeds and three ejaculates per bull were evaluated. Frozen semen samples were thawed and the acrosomal region of sperm cells was evaluated by transmission electron microscopy (TEM) before (n = 18) and after (n = 18) Percoll centrifugation. The evaluation of 20 sperm heads from each of the... -
Efficacy of nano-hydroxyapatite prepared by an aqueous solution combustion technique in healing bone defects of goat
Samit Kumar Nandi, Biswanath Kundu*, Samir Kumar Ghosh, Dipak Kumar De, Debabrata Basu 대한수의학회 Journal of Veterinary Science 10 Pages
대한수의학회 Journal of Veterinary Science 2008, 제 9권 제 2호 9 183-192 (10 pages)
foam, from where a flame appeared and burned with incandescence. At the initiation of ignition, the furnace was switched off. The heat evolved during the reaction sustained itself and proceed to com- pletion without requiring any further heat from an external source. The general flowchart for the process is shown in Fig. 1. Details of the in vitro characterization of the prepared powder are... The present study was undertaken to evaluate porous hydroxyapatite (HAp), the powder of which was prepared by a novel aqueous solution combustion technique, as a bone substitute in healing bone defects in vivo, as assessed by radiologic and histopathologic methods, oxytetracycline labeling, and angiogenic features in Bengal goat. Bone defects were created in the diaphysis of the radius and either not filled (group I) or filled with a HAp strut (group II). The radiologic study in group II showed... -
Protective and therapeutic effects of an extract mixture of alder tree, labiate herb, milk thistle green bean-rice bran fermentation, and turnip against ethanol-induced toxicity in the rat
Min-Won Baek, Seung-Hyeok Seok, Hui-Young Lee, Dong Jae Kim, Byoung-Hee Lee, Young-Tae Ahn, Kwang-Sei Lim, Chul-Sung Huh, Jae-Ha 대한수의학회 Journal of Veterinary Science 7 Pages
대한수의학회 Journal of Veterinary Science 2008, 제 9권 제 1호 5 31-37 (7 pages)
of labiate herb extract. Milk thistle extract was purchased in powder form (TGS, Japan) and had, by weight, a total flavonoid content of 80-95% and 28-32% sylibin content. In addition, a liquid green bean-rice bran fermentation extract was purchased (Toyo Hakko, Japan) along with a liquid turnip concentrate (34-36%) (KangHwa Product, Korea). In this study, two different doses (1 × and 2 ×)... An herbal extract mixture and yogurt added to the herbal extract mixture were tested for their protective and therapeutic effects on ethanol-induced liver injury. The herbal extract mixture, yogurt and commercial drugs were used for treatment for two weeks prior to administering a single oral dose of ethanol (3 g/kg body weight). The herbal extract mixture and yogurt added to the herbal extract mixture were found to provide protection against ethanolinduced toxicity comparable to the commercial... -
Enhancement of protective immune responses by oral vaccination with Saccharomyces cerevisiae expressing recombinant Actinobacillus pleuropneumoniae ApxIA or ApxIIA in mice
Sung Jae Shin, Seung Won Shin, Mi Lan Kang, Deog Yong Lee, Moon-Sik Yang, Yong-Suk Jang, Han Sang Yoo* 대한수의학회 Journal of Veterinary Science 10 Pages
대한수의학회 Journal of Veterinary Science 2007, 제 8권 제 4호 11 383-392 (10 pages)
to one of five im- munization regimens. Group A (control) received oral ad- ministration of 500 l of 10 mM PBS (pH 7.2) and group B (vector) was orally vaccinated with 20 mg of S. cer- evisiae powder dissolved into 500 l of 10 mM PBS (pH 7.2). The vaccinated groups were immunized with 20 mg of S. cerevisiae expressing either ApxIA (group C), ApxIIA (group D), or both (10 mg each, group E)... We previously induced protective immune response by oral immunization with yeast expressing the ApxIIA antigen. The ApxI antigen is also an important factor in the protection against Actinobacillus pleuropneumoniae serotype 5 infection; therefore, the protective immunity in mice following oral immunization with Saccharomyces cerevisiae expressing either ApxIA (group C) or ApxIIA (group D) alone or both (group E) was compared with that in two control groups (group A and B). The immunogenicity of... -
Phytotherapeutic effects of Echinacea purpurea in gamma-irradiated mice
Amira M. K. Abouelella, Yasser E. Shahein*, Sameh S. Tawfik, Ahmed M. Zahran 대한수의학회 Journal of Veterinary Science 12 Pages
대한수의학회 Journal of Veterinary Science 2007, 제 8권 제 4호 5 341-352 (12 pages)
reviewed by evaluating the changes in bone marrow and peripheral blood cell count and peripheral blood antioxidant activity. Materials and Methods Administration of E. purpurea Standardized dried powder extract from E. purpurea (Echinacin; Madaus AG, Germany) at a dose of 30 mg/kg body wt/day, was suspended in 1.0 ml of saline and gav- aged to each animal for 2 weeks as previously described ... Echinacea (E.) purpurea herb is commonly known as the purple coneflower, red sunflower and rudbeckia. In this paper, we report the curative efficacy of an Echinacea extract in ■-irradiated mice. E. purpurea was given to male mice that were divided into five groups (control, treated, irradiated, treated before irradiation & treated after irradiation) at a dose of 30 mg/kg body weight for 2 weeks before and after irradiation with 3 Gy of ■-rays. The results reflected the detrimental... -
Effects of Combination Dietary Conjugated Linoleic Acid with Vitamin A (Retinol) and Selenium on the Response of the Immunoglobulin Productivity in Mice
Jin-young Kim, Byung-hyun Chung 대한수의학회 Journal of Veterinary Science 6 Pages
대한수의학회 Journal of Veterinary Science 2003, 제 4권 제 1호 16 103-108 (6 pages)
CLA at dose of 0.5% and 1.5% was given at 133.5 mg/kg/day and 400.5 mg/kg/day, respectively. For complete mixing ofthe ingredients,CLA was sprayed on the powder diet under nitrogen gas in a closed space before feeding. Preparation of vitamin ADE and selenium Vitamin A (as retinol) and selenium were obtained from Sigma (U.S.A.).These were sprayed on the powder diet just before feeding. Vitamin A at... The dietary effect of conjugated linoleic acid (CLA) on the response of the immunoglobulin (serum and tissue) production in Balb/C mice was examined at three doses: 0 %(control), 0.5% and 1.5%. The combination effects of CLA with vitamin ADE or selenium also were investigated. CLA at 0.5% increased serum immunoglobulin A, G, mesenteric lymph node (MHN) and gut luminal IgA (secretory IgA) levels. However, 1.5% CLA decreased SIgG slightly. CLA both alone and combined with vitamin ADE and selenium...