scholarly journals Potential for Lead Release from Lead-Immobilized Animal Manure Compost in Rhizosphere Soil of Shooting Range

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Masahiko Katoh ◽  
Wei Lu ◽  
Takeshi Sato
Keyword(s):  
Rhizosphere Soil ◽  
Lead Level ◽  
Animal Manure ◽  
Water Soluble ◽  
Solution Ph ◽  
Shooting Range ◽  
Manure Compost ◽  
Significant Difference ◽  
Guinea Grass ◽  
Lead Release

This study aimed to clarify the magnitude of lead release from lead-sorbed animal manure compost (AMC) in rhizosphere soil compared with nonplanted soil of shooting range. The presence of buckwheat caused reduction in rhizosphere soil pH and enhancement in the level of water-soluble organic carbon compared with those of nonplanted soil. In addition, the presence of buckwheat altered the lead phases and increased the relative amount of the soluble exchangeable fraction, resulting in increase in the CaCl2-soluble lead level. In contrast, the presence of Guinea grass did not change the lead bioavailability or phases compared with nonplanted soil. Lead release tests in solution showed that between solution pH 5 and solution pH 7 the amount of lead released from the compost was higher in the rhizosphere soil of buckwheat than in nonplanted soil, whereas there was no significant difference between the rhizosphere soil of Guinea grass and nonplanted soil. These results suggest that the increase in the quantity of exchangeable lead resulting from the rhizosphere effect induces lead immobilized by the AMC to be remobilized. Therefore, AMC should be applied to soils that contain plants that are unable to alter the lead phases in the shooting range soil. Efforts should be particularly made to ensure that lead cannot be transformed to the exchangeable phase.

scholarly journals Role of Inorganic and Organic Fractions in Animal Manure Compost in Lead Immobilization and Microbial Activity in Soil

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Masahiko Katoh ◽  
Wataru Kitahara ◽  
Takeshi Sato
Keyword(s):  
Microbial Activity ◽  
Contaminated Soil ◽  
Animal Manure ◽  
Water Soluble ◽  
Residual Fraction ◽  
Inorganic Component ◽  
Manure Compost ◽  
Microbial Enzyme ◽  
Lead Immobilization ◽  
Inorganic Fraction

This study aimed to identify how the ratio of inorganic-to-organic components in animal manure compost (AMC) affected both lead immobilization and microbial activity in lead-contaminated soil. When AMC containing 50% or more inorganic fraction with high phosphorous content was applied to contaminated soil, the amounts of water-soluble lead in it were suppressed by over 88% from the values in the soil without compost. The residual fraction under sequential extraction increased with the inorganic fraction in the AMC; however, in those AMCs, the levels of microbial enzyme activity were the same or less than those in the control soil. The application of AMC containing 25% inorganic fraction could alter the lead phases to be more insoluble while improving microbial enzyme activities; however, no suppression of the level of water-soluble lead existed during the first 30 days. These results indicate that compost containing an inorganic component of 50% or more with high phosphorus content is suitable for immobilizing lead; however, in the case where low precipitation is expected for a month, AMC containing 25% inorganic component could be used to both immobilize lead and restore microbial activity.

scholarly journals Influence of Tillage and Daily Manure Application on the Survival of Bacterial Pathogens Indicators in Soil and on Radish

2010 ◽  
Vol 2010 ◽  
pp. 1-6 ◽  
Author(s):  
James A. Entry ◽  
David L. Bjorneberg ◽  
Sheryl Verwey
Keyword(s):  
Bacterial Adhesion ◽  
Raphanus Sativus ◽  
Pathogenic Bacteria ◽  
Rhizosphere Soil ◽  
Bacterial Colonization ◽  
Sampling Period ◽  
Animal Manure ◽  
Dairy Manure ◽  
Control Treatment ◽  
E Coli

We measuredEscherichia coli, andEnterococcussp. numbers in soil and on fresh radish (Raphanus sativusL.) at 1, 7, 14, 28, 54, and 84 days after the addition of high and low amounts of solid dairy manure in combination with chisel tillage to a 20 cm depth (deep) or roller tillage to a 10 cm depth (shallow). When the high or low amount of solid dairy manure was added to the soil,E. colipopulations in soil were higher in the 54 days following manure addition compared to the control treatment. Dairy manure addition increasedEnterococcussp. in soils compared to the control treatment for the entire 84 days sampling period. At harvest, which was 84 days after application, we did not detectE. coliin radish in rhizosphere soil or on radish roots. Addition of solid dairy manure increasedEnterococcussp. numbers in radish rhizosphere soil and on radish roots. We suggest that fresh animal manure be applied to soil at least 120 days prior to planting to allow die-off of human pathogenic bacteria and reduce the incidence of bacterial adhesion on or bacterial colonization of ready to eat vegetables.

scholarly journals Non-structural carbohydrate metabolism and postharvest conservation of gerbera flowers

2017 ◽  
Vol 23 (3) ◽  
pp. 329
Author(s):  
Ana Maria Oliveira Souza Alves ◽  
Jaianne Francielle Oliveira Santos Pimentel ◽  
Gustavo Ferreira Da Silva ◽  
Nilbe Carla Mapeli ◽  
Ana Maria Mapeli
Keyword(s):  
Carbohydrate Metabolism ◽  
Floral Development ◽  
Distilled Water ◽  
Mass Variation ◽  
Solution Ph ◽  
Significant Difference ◽  
Structural Carbohydrate ◽  
Postharvest Handling ◽  
E6 And E7 ◽  
Preservative Solutions

The species Gerbera jamesonii Adlam has great economic importance in the ornamental sector, due to exuberance of floral stems. However, florists face some challenges such as postharvest handling and difficulty of conservation. Therefore, this study aimed to characterize the non-structural carbohydrate content in different floral stages of G. jamesonii var. Dawn and evaluate the effect of preservative solutions during the postharvest storage of this species. For this purpose, it was quantified TSS, RS and NRS from the seven stages of gerbera stems ontogeny (E1, E2, E3, E4, E5, E6 and E7). The preservative solutions used were: T1) distilled water; T2) citric acid (100 mg L-1); T3) glucose (20 g L-1); T4) gibberellic acid (GA3 , 5 mg L-1); T5) calcium chloride (CaCl2 , 20g L-1) and T6) Sodium Thiosulphate (STS, 20 mM). The effect of preservative solutions were assessed daily, considering the longevity of flowers, variation in the absorption of preservative solution, pH of the solution and fresh mass variation. The experimental design was completely randomized with four replicates. There was a difference in carbohydrate metabolism during floral opening and senescence. In the orange bracts there was a lower TSS content, while in the inflorescences it was observed a reduction in the yellowish, greenish-green and greenish stages. The content of RS increased in the bracts, whereas in the inflorescence there was no difference. The NRS content was higher in the orange bracts, showing lower rates in the inflorescences in yellowish and yellowish greenish stages. The preservative solutions had an impact, on the floral stem longevity, varying according to the solutions used, i.e. CaCl2 and STS reduced the durability of gerbera flower in 9.25 and 11.5 days, respectively, compared to stems kept in distilled water. The glucose solution did not promote a significant difference compared to water. Therefore, we conclude that there is variation in the metabolism of non-structural carbohydrates during the floral development of G. jamesonii var. Dawn and the tested solutions were not effective in promoting postharvest conservation of gerbera.

scholarly journals PERBANDINGAN KADAR TIMBAL (Pb) PADA GORENGAN YANG DIJUAL DI JALAN SAM RATULANGI DAN PURWODADI KOTA PEKANBARU

2020 ◽  
Vol 14 (2) ◽  
pp. 114
Author(s):  
Yeli Hartuti ◽  
Efriyeldi Efriyeldi ◽  
Maria Erna
Keyword(s):  
Lead Level ◽  
Threshold Value ◽  
T Test ◽  
The Body ◽  
Motor Vehicles ◽  
Director General ◽  
P Value ◽  
Food Control ◽  
Significant Difference ◽  
Fried Foods

Air pollution gives a negative impact to human health due to pollutants released by motor vehicles. From the several kinds of pollutants generated, CO is one of the most pollutants released by motor vehicles. Lead can contaminate the environment and can poisoning the living organisms. Lead can cause various disorders to the body and also organs such as hematopoietic system, neurological, endocrine, renal, gastrointestinal, hematological, and reproduction. This study aims to analyze the comparison of the levels of lead (Pb) in fried foods sold on Jalan Sam Ratulangi with fried foods sold on the edge of Jalan Purwodadi, Pekanbaru City. This research is descriptive quantitative. Samples in the form of bakwan which were taken by one trader by using a total sampling of 6 samples. The sample will then be examined quantitatively to determine the level of lead in the sample using the atomic absorption spectrophotometric method. The results of the lead level examination will then be compared with the maximum limit of metal contamination according to the standards set by the Directorate General of Drug and Food Control No. 00.06.1.52.4011 Year 2009 to find out whether the fried foods sold in that location meet the Threshold Value (NAB), and compared using the SPSS t test. The results of the research after analysis using the t test, it is known that the p value is 0.216 when compared with a= 0.05, then p>a, so there is no significant difference between the fried foods sold on Jalan Sam Ratulangi and Purwodadi, Pekanbaru City, all samples exceed The threshold value set by the Regulation of the Director General of Drug and Food Control Number HK.00.06.1.52.4011 of 2009 is 0.25 mg/kg.

scholarly journals Photo-transformation of aqueous nitroguanidine and 3-nitro-1,2,4-triazol-5-one : emerging munitions compounds

2021 ◽  
Author(s):  
Julie Becher ◽  
Samuel Beal ◽  
Susan Taylor ◽  
Katerina Dontsova ◽  
Dean Wilcox
Keyword(s):  
Aqueous Solutions ◽  
Degradation Products ◽  
Pure Water ◽  
Transformation Products ◽  
Water Soluble ◽  
Uv Exposure ◽  
Degradation Pathways ◽  
Solution Ph ◽  
Photo Degradation ◽  
Degradation Rates

Two major components of insensitive munition formulations, nitroguanidine (NQ) and 3-nitro-1,2,4-triazol-5-one (NTO), are highly water soluble and therefore likely to photo-transform while in solution in the environment. The ecotoxicities of NQ and NTO solutions are known to increase with UV exposure, but a detailed accounting of aqueous degradation rates, products, and pathways under different exposure wavelengths is currently lacking. We irradiated aqueous solutions of NQ and NTO over a 32-h period at three ultraviolet wavelengths and analyzed their degradation rates and transformation products. NQ was completely degraded by 30 min at 254 nm and by 4 h at 300 nm, but it was only 10% degraded after 32 h at 350 nm. Mass recoveries of NQ and its transformation products were >80% for all three wavelengths. NTO degradation was greatest at 300 nm with 3% remaining after 32 h, followed by 254 nm (7% remaining) and 350 nm (20% remaining). Mass recoveries of NTO and its transformation products were high for the first 8 h but decreased to 22–48% by 32 h. Environmental half-lives of NQ and NTO in pure water were estimated as 4 and 6 days, respectively. We propose photo-degradation pathways for NQ and NTO supported by observed and quantified degradation products and changes in solution pH.

Changes in the total amount of water-soluble antioxidants in the blood serum of Duroc boars depending on the duration of their fattening

2020 ◽  
Vol 1 (12) ◽  
pp. 112-118
Author(s):  
O. A. Voronina ◽  
◽  
A. A. Savina ◽  
N. S. Kolesnik ◽  
N. V. Bogolyubova ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Blood Serum ◽  
Water Soluble ◽  
Laboratory Studies ◽  
Blood Samples ◽  
Amperometric Method ◽  
Significant Difference ◽  
Total Antioxidant ◽  
First Time

The influence of fattening conditions on the digestive and metabolic processes in animals is actively studied to increase the production of animal food. The aim of the study was to estimate the total amount of water-soluble antioxidants in the blood serum of Duroc boars depending on the duration of fattening. Experiments were conducted on 102 animals to confirm the results of laboratory studies, as well as determination of the total antioxidant activity of pig blood serum by amperometric method. For the first time, a significant difference in antioxidant activity was found in blood samples of Duroc boars with the duration of their fattening from 81 to 101 days.

Nanovesicle formulation enhances anti-inflammatory and safe use of piroxicam

2021 ◽  
Vol 09 ◽  
Author(s):  
Chukwuemeka Mbah ◽  
Josephat Ogbonna ◽  
Ifeanyi Nzekwe ◽  
George Ugwu ◽  
Richard Ezeh ◽  
...  
Keyword(s):  
Thin Film Deposition ◽  
Film Deposition ◽  
Water Soluble ◽  
Safe Alternative ◽  
Significant Difference ◽  
Permeation Studies ◽  
Mean Size ◽  
Anti Inflammatory ◽  
Preformulation Studies ◽  
Spherical Vesicles

Background: Enhanced utilization of certain drugs may be possible through the development of alternative delivery forms. Adverse gastrointestinal tract effects such as irritation and ulceration have limited wider applications of NSAIDs in antiiflammatory therapy. This challenge may be overcome through nano topical formulations. Objective: This study was aimed at exploring the potentials of a transdermal nanovesicular formulation for safe and enhanced delivery of piroxicam (PRX), a poorly water-soluble NSAID. Methods: Preformulation studies were done using DSC and FTIR. Ethosomal nanovesicular carrier (ENVC) was prepared by thin-film deposition technique using Phospholipon® 90 H (P90H) and ethanol, and then converted into gel form. The formulation was characterized using a commercial PRX gel as control. Permeation studies were done using rat skin and Franz diffusion cell. Samples were assayed spectrophotometrically and the data obtained analyzed by ANOVA using GraphPad Prism software. Results: The preformulation studies showed compatibility between PRX and P90H. Spherical vesicles of mean size 343.1 ± 5.9 nm, and polydispersity index 0.510 were produced, which remained stable for over 2 years. The optimized formulation (PE30) exhibited pseudoplastic flow, indicating good consistency. The rate of permeation increased with time in the order: PE30 > Commercial, with significant difference (p< 0.05). It also showed higher inhibition of inflammation (71.92 ± 9.67 %) than the reference (64.12 ± 7.92 %). Conclusions: ENVC gel of PRX was formulated. It showed potentials for enhanced transdermal delivery and anti-inflammatory activity relative to the reference. This may be further developed as a safe alternative to the oral form.

DNA Sequence and Community Structure Diversity of Multi-Year Soil Fungi in Grape of Xinjiang

2021 ◽  
Author(s):  
Tong Liu ◽  
Feng Xue
Keyword(s):  
Organic Matter ◽  
Community Structure ◽  
Soil Organic Matter ◽  
Soil Fungi ◽  
Rhizosphere Soil ◽  
Middle Layer ◽  
Fungal Communities ◽  
Seedless Grape ◽  
Significant Difference ◽  
Vineyard Soil

Abstract This study is designed to understand the community structure and diversity of fungi in the rhizosphere soil of grape. As the sample for this study, the rhizosphere soil of Crimson seedless grape with different planting years was collected from Shihezi in Xinjiang to carry out high-throughput sequencing, by which the complete sequence of soil fungi DNA was identified, and accordingly, the richness and diversity index of fungi were determined. The results showed that the dominant phyla of fungi in the grape rhizosphere soil with different planting years were Ascomycota and Basidiomycota, and the dominant classes of fungi were Sordariomycetes and Dothideomycetes. Soil organic matter, total potassium, total nitrogen and available phosphorus were the main soil fertility factors affecting the abundance and diversity of soil fungal communities, among which soil organic matter had the most significant influence. In addition, the fungal diversity and richness were highest in the middle layer (20-35 cm) of the grape rhizosphere soil with 12 planting years and lowest in the lower layer (35-50 cm) of the grape rhizosphere soil with 5 planting years. Linear discriminant analysis suggested that there were more biomarkers in the vineyard rhizosphere soil with 10 planting years, which meant there were more fungal communities with significant difference in the soil, especially in the middle layer (20-35). The results of this study can provide data reference and theoretical basis for improving vineyard soil quality, evaluating soil microecological effects and improving ecological environment of vineyard soil.

scholarly journals Nutritional Composition and Physio-Chemical Properties of Peeled and Unpeeled Yam Flour (White Yam, Dioscorea rotundata)

2020 ◽  
Vol 4 (Supplement_2) ◽  
pp. 735-735
Author(s):  
Oyetunji Akinola
Keyword(s):  
Sensory Evaluation ◽  
Energy Content ◽  
Chemical Properties ◽  
Proximate Analysis ◽  
Nutritional Composition ◽  
Water Soluble ◽  
Nutrient Deficiencies ◽  
Two Samples ◽  
Significant Difference ◽  
Yam Flour

Abstract Objectives The main shelf-stable product of yam is the traditional yam flour (elubo), Yams (Dioscorea spp.) which are regarded as traditional foods are consumed in various ways but majorly consumed as yam flour in the south west region of Nigeria. This study investigated the physical, functional and sensory properties and anti-nutrients contents of peeled and unpeeled yam flour. Methods Yam bought in the popular market production procedures were followed, washing, peeling and slicing, parboiling, steeping. draining, drying, milling, and packaging for peeled yam and unpeeled yam peeling was not included in the process, the two samples were analyzed chemically according to the official methods of analysis described by the Association of Official Analytical Chemist as well as sensory evaluation. Results The results of the study confirmed the significant difference in the micro nutrients content of peeled and unpeeled yam flour in fats and water soluble vitamins respectively (K µg/100 g = 6.97,11.83, Fe(mg/kg) = 95.2, 126.9, minerals content Zn(mg/kg) 13.48, 22.92, Fe(mg/kg) 95.2126.9 and anti-nutrient properties of the ‘Amala’ made from the two products (peeled and unpeeled yam flour) the percentage of Tannin 0.0023, 0.0010 and Hydrocynaide (mg/kg) 0.92, 1.01.The proximate analysis of unpeeled yam four indicated a high value than that of peeled yam flour in protein (2.47, 2.28), fats (1.86, 0.54), ash (3.59, 2.32), and fibre (3.09, 1.31) of both samples respectively but the energy content derived from the ‘amala’ made from unpeeled yam flour is lesser to that of peeled yam flour. Significant exist between the two samples in sensory evaluation of taste, texture, color, mouldability, aroma and general acceptability. Conclusions The result shown that the consumption of unpeeled yam flour can be useful in treatment of nutrient deficiencies diseases. Funding Sources Self.

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