A Study of the Chemical and Physical Characteristics of the Soils from the South of Piauí for Soil-Cement Brick Production

2016 ◽  
Vol 869 ◽  
pp. 112-115 ◽  
Author(s):  
Francisca Pereira de Araújo ◽  
Edson Cavalcanti Silva Filho ◽  
João Sammy Nery de Souza ◽  
Josy Anteveli Osajima ◽  
Marcelo Barbosa Furtini
Keyword(s):  
Organic Matter ◽  
Particle Density ◽  
Environmentally Friendly ◽  
Physical Characteristics ◽  
Chemical Characteristics ◽  
The South ◽  
Physical Chemical ◽  
Soil Cement ◽  
Made In

Soil-cement bricks are good examples of environmentally friendly products. This brick is the combination of soil with compacted cement with no combustion in its production. In this work the physical chemical characteristics of the soil from Piaui for producing this material were investigated. Samples of the soil were collected in three potteries from the county of Bom Jesus and pH analysis were carried out, as well as the rate of organic matter, texture, particle density, limits of liquidity and plasticity rates. The results have shown that the soils have acid tones (pH 5,49 a 6,11), which can be neutralized by adding cement, and organic matter percentages up to 1%. The samples have shown predominantly clay-rich textures with adequate plasticity limits, however, values of liquidity limits and particle density above recommended. Altogether, these soils tend to present viability concerning soil-cement brick production, provided that corrections with additives are made in order to minimize this effect.

scholarly journals EVALUASI KARAKTERISTIK FISIKA-KIMIA SEDIAAN KRIM DAN LOTION EKSTRAK KULIT BUAH NANAS (Ananas comosus L.Merr)

2018 ◽  
Vol 15 (2) ◽  
pp. 41
Author(s):  
Elya Zulfa ◽  
Mufrod Mufrod
Keyword(s):  
Physical Chemistry ◽  
Ethanolic Extract ◽  
Ananas Comosus ◽  
Chemical Characteristics ◽  
Physical Chemical ◽  
Fruit Skin ◽  
Pineapple Peel ◽  
Pineapple Fruit ◽  
Positive Controls ◽  
Made In

ABSTRACTIn previous research, ethanolic extract of pineapple peel (EEPP) has activity as a sunscreen because of the content of flavonoids. EEPP can be formulated in the form of creams and lotions to facilitate use on the skin. This study aims to evaluate the physical chemistry characteristics of EEPP creams and lotions. Creams and lotions were made in 3 formulas based on variations in FI extract concentrations (15.0%), FII (17.5%), FIII (20.0%), base controls and positive controls (preparations on the market). The cream obtained was evaluated for physical chemical characteristics including organoleptic, homogeneity, adhesion and dispersion, viscosity, pH and SPF values which were analyzed descriptively. cream with varying concentrations of green, the distinctive smell of pineapple, homogeneous and in accordance with the pH of the skin. Increasing the concentration of EEPP in the preparation has an effect on increasing viscosity, adhesion but decreasing the dispersion. Whereas the lotion shows greenish color, aromatic odor and semisolid texture and is easily applied. The increase in EEPP in lotion affects the increase in pH, adhesion, but decreasing the dispersion.Keywords: Creams, lotions, sunscreen, pineapple fruit skin

scholarly journals Qualidade do Solo sob Cultivo de Banana em Sistemas de Produção Orgânico e Convencional em Gonçalves (MG)

2021 ◽  
Vol 14 (3) ◽  
pp. 1206
Author(s):  
Vanêssa Lopes de Faria ◽  
Rogério Melloni ◽  
Eliane Guimarães Pereira Melloni
Keyword(s):  
Organic Matter ◽  
Soil Quality ◽  
Production Systems ◽  
Microbial Biomass Carbon ◽  
Particle Density ◽  
Geometric Mean ◽  
Integrated Analysis ◽  
Native Forest ◽  
Physical Chemical ◽  
Conventional Production

O objetivo foi avaliar a qualidade do solo em função dos diferentes sistemas de produção orgânico e convencional de banana mediante análise integrada dos atributos físicos, químicos e microbiológicos, tendo como referência uma área de mata nativa. As amostras deformadas e indeformadas foram coletadas na profundidade de 0 a 20 cm, no município de Gonçalves (MG) e submetidas às análises físicas (textura, densidade do solo, densidade de partículas, porosidade total, diâmetro médio geométrico e ponderado), químicas (fertilidade básica e matéria orgânica), microbiológicas (carbono da biomassa microbiana, atividade microbiana e qCO2). Os resultados indicam que as práticas culturais e o manejo do solo adotado no sistema de produção orgânico e convencional contribuíram para um aporte expressivo de matéria orgânica atribuído à constante deposição da biomassa da bananeira, sem diferença com a área de referência de mata nativa, havendo, dessa forma, manutenção da qualidade física e microbiológica do solo. Os indicadores químicos apresentaram condições químicas favoráveis ao desenvolvimento do plantel nos sistemas orgânicos, e em especial nos sistemas convencionais, onde, além do material orgânico depositado, houve adição de insumos químicos. Ressalta-se as limitações da seleção dos indicadores químicos, os quais não avaliaram os efeitos dos insumos químicos utilizados nos sistemas convencionais, sendo este, o principal fator que diferencia o manejo realizado nos sistemas orgânicos e convencionais. Soil Quality under Banana Cultivation in Organic and Conventional Production Systems in Gonçalves (MG) ABSTRACTThe aim of this work was to evaluate the soil quality depending on different banana cultivation conventional and organic systems, through integrated analysis of physical, chemical and microbiological attributes, using an area of a native forest as reference. The deformed and not deformed samples were collected at a depth of 0 to 20 cm in the city of Gonçalves (Minas Gerais’ state), then undergo to physic analysis (texture, soil density, particle density, total porosity, weighted geometric mean diameter); chemical (soil fertility and organic matter); and microbiological (microbial biomass carbon, microbial activity and qCO2). The results indicated that the cultural practices and the soil management adopted in the organic and conventional productions system contributed to an expressive input of organic matter, improving soil quality in terms of physical, chemical and microbiological aspects. Thus, due to the similarity of soil quality, it is recommended that the practices of adding agricultural inputs to conventional production systems be reviewed.Keywords: use of the soil, banana cultivation, indicators of the soil quality.

Application of MIEX® pre-treatment for ultrafiltration membrane process for NOM removal and fouling reduction

2005 ◽  
Vol 5 (5) ◽  
pp. 15-24 ◽  
Author(s):  
H.J. Son ◽  
Y.D. Hwang ◽  
J.S. Roh ◽  
K.W. Ji ◽  
P.S. Sin ◽  
...  
Keyword(s):  
Organic Matter ◽  
Removal Efficiency ◽  
Membrane Fouling ◽  
Membrane Filtration ◽  
Reduction Rate ◽  
Chemical Characteristics ◽  
Permeate Flux ◽  
Physical Chemical ◽  
Sample Water ◽  
Original Water

In this study, pretreatment of organic matters with MIEX® was evaluated using bench-scale experimental procedures on three organic matters to determine its effect on subsequent UF or MF membrane filtration. For comparison, a coagulation process was also used as a pretreatment of UF or MF membrane filtration. Moreover, the membrane fouling potential was identified using different fractions and molecular weights (MW) of organic matter. From the removal property of MW organic matter by the coagulation process for the sample water NOM and AOM, the removal efficiencies of high MW organic matter were much higher than those of low MW organic matter. It was shown that the removal efficiency of high MW organic matter (more than 10 kDa) was lower than that of low MW organic matter for the MIEX® process. For the change of permeate flux by the pretreatment process, the MIEX®-UF process showed high removal efficiency of organic matter compared with the coagulation-UF processes, but a high reduction rate of permeate flux was presented through the reduction of removal efficiency of high MW organic matter. From sequential filtration test results to examine the effect of MW of organic matter on membrane fouling, we found that the membrane fouling occurred with high MW organic matter, and the DOC of organic matter less than 0.5 mg/L was acting as the membrane foulant. In sample water composed of low MW organic matter (less than 10 kDa), because the low MW organic matter of less than 10 kDa has a high removal efficiency by MIEX®, a low reduction rate of permeate flux is obtained compared with the coagulation-UF processes. In summary, research on the physical/chemical characteristics of original water is needed before a membrane pretreatment process is selected, and a pertinent pretreatment process should be used based on the physical/chemical characteristics of the original water.

scholarly journals AVALIAÇÃO DE PARÂMETROS FÍSICOS E QUÍMICOS DE MARCAS DE ERVA-MATE

2001 ◽  
Vol 19 (1) ◽  
Author(s):  
LUIZ CARLOS GUTKOSKI ◽  
JORGE GRUN SCHULZ ◽  
MARIA BERNADETE SAMPAIO ◽  
DANIELA RODRIGUES DA SILVA
Keyword(s):  
Aqueous Extract ◽  
Chemical Characteristics ◽  
The South ◽  
Caffeine Content ◽  
Physical Chemical ◽  
Extract Content ◽  
South Of Brazil

O objetivo deste trabalho foi avaliar as características físico-químicas de marcas de erva-mate, segundo os padrões estabelecidos pela legislação em vigor, e verificar sua influência nas características sensoriais dos produtos. Foram realizadas três coletas de 33 marcas de erva-mate em indústrias da região Sul do Brasil e as amostras analisadas quanto aos teores de umidade (máximo de 10%), cinzas (máximo de 7%), cinzas insolúveis (máximo de 1%), extrato aquoso (mínimo de 25%), cafeína (mínimo de 0,5%) e características sensoriais. A análise dos resultados indicou que todas as amostras das marcas analisadas, referentes as três épocas de coleta, estavam de acordo com a Portaria 234 do Ministério da Saúde quanto aos teores determinados, exceto para cafeína. Nas marcas de erva-mate com teores de extrato aquoso superiores a 34%, os altos teores de cafeína indicaram melhor resposta sensorial. Já nas amostras com teores de extrato aquoso abaixo deste valor, os altos teores de cafeína prejudicaram a aceitabilidade da erva-mate para o consumo tipo chimarrão. Abstract The aim of this work was to evaluate the physical chemical characteristics of mate herb brands, according to the standards established by the valid legislation and to verify its sensorial characteristics. Three samplings of 33 mate herb brands were realized in industries from the South of Brazil and the samples were analyzed for humidity content (maximum 10%), ashes (maximum 7%), insoluble ashes (maximum 1%), aqueous extract (minimum 25%), caffeine (minimum 0,5%) and sensorial characteristics. The results analysis demonstrated that the humidity, ashes and insoluble ashes contents of all analyzed brands in three samplings were according to the valid legislation, except aqueous extract and caffeine. In the mate herb brands with aqueous extract content superior to 34%, high caffeine content indicated better sensorial response. In samples with aqueous extract lower of this value, high caffeine content have adversely affected on the sensorial acceptability.

scholarly journals Karakteristik Sosis dengan Fortifikasi β-Caroten dari Labu Kuning (Cucurbita moschata) (Sausage Characteristics as Affected by β-Caroten Fortification of Pumpkin (Cucurbita moschata))

2012 ◽  
Vol 33 (2) ◽  
pp. 111
Author(s):  
Agus Hadi Prayitno ◽  
Firdha Miskiyah ◽  
Afina Viyunnur Rachmawati ◽  
Tombak Mahesa Baghaskoro ◽  
Bekti Putra Gunawan ◽  
...  
Keyword(s):  
Ph Value ◽  
Physical Characteristics ◽  
Sensory Characteristics ◽  
Chemical Characteristics ◽  
Cucurbita Moschata ◽  
Physical Chemical ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Physical And Chemical ◽  
Water Holding

<p>The objectives of the experiment were to evaluate physical, chemical, and sensory characteristics of sausage by using fortification with β-caroten of pumpkin. There were five treatments of fortification with β-caroten of pumpkin as<br />the filler substitutions on sausage processing. The treatments were: 0% (control), 25, 50, 75, and 100% of the filler. There were five replications in each treatment. The data of physical and chemical characteristics from the completely randomized design were analysed by analysis of variance. The data of sensory characteristics were analysed by the analysis of non parametric test of Hedonic Kruskal-Wallis. The results showed that sausage fortified with β-caroten of pumpkin as the filler substitutions up to 100% level on sausage processing affected significantly (P&lt;0.01) on physical characteristics of sausage (decreased water-holding capacity, increased tenderness and it did not affect pH value of sausage), chemical characteristics of sausage (decreased moisture, increased protein, fiber, β-caroten, and it did not affect the fat content of sausage), and sensory characteristics of sausage (increased taste, decreased color, aroma, texture, touchness, and acceptability of sausage).</p><p>(Key words: Sausage, Pumpkin, β-caroten, Physical characteristics, Chemical, Sensory)<br /><br /></p>

Karakteristik Fisik, Kimia, Dan Biologi Tempat Perindukan Potensial Larva Anopheles Sp. Dan Indeks Habitat Di Desa Sukamaju Kecamatan Punduh Pidada Kabupaten Pesawaran

2021 ◽  
Vol 1 (2) ◽  
pp. 122-133
Author(s):  
Akmal Taher ◽  
Tusy Triwahyuni ◽  
Ismalia Husna ◽  
Devita Febriani
Keyword(s):  
Water Depth ◽  
Sampling Site ◽  
Physical Characteristics ◽  
Biological Characteristics ◽  
Water Salinity ◽  
Chemical Characteristics ◽  
Cross Sectional ◽  
Physical Chemical ◽  
Average Water ◽  
Breeding Place

ABSTRACT: PHYSICAL, CHEMICAL, AND BIOLOGICAL CHARACTERISTICS OF POTENTIAL FARMING PLACE OF LARVA Anopheles sp. AND HABITAT INDEX IN SUKAMAJU VILLAGE DISTRICT PUNDUH PIDADA PESAWARAN DISTRICT Background:  Malaria is an infectious disease transmitted through mosquitoes and has become a health problem both in the world and Indonesia especially in Lampung. The population of the malaria vector is strongly influenced by the location of the breeding place. Purpose: Knowing the Physical, Chemical, and Biological Characteristics of Potential Breeding Places for Anopheles Sp. and Habitat Index in Sukamaju Village, Punduh District, Pesawaran Regency, Lampung Province, 2020. Methods: This was a descriptive study with a cross-sectional study research design. The physical characteristics have done by measuring temperature and water depth, the chemical characteristics by measuring pH and water salinity, and the biological characteristics by looking at organisms found at the sampling site. As well as calculating the habitat index. Results: The physical characteristics of the brooding sites have an average water temperature of 31.33 ° C and an average water depth of 25.840 cm. Chemical characteristics of brooding sites mean 2.4280 ‰ of water salinity, and most of the acidity (pH) of water is acidic. The biological characteristics of breeding sites are mostly water and plant predators. Habitat index obtained a value of 1%.Conclusion: That these places have the potential to transmit malaria. Keywords: Anopheles sp., breeding place, malaria   INTISARI: KARAKTERISTIK FISIK, KIMIA, DAN BIOLOGI TEMPAT PERINDUKAN POTENSIAL LARVA Anopheles sp. DAN INDEKS HABITAT DI DESA SUKAMAJU  KECAMATAN PUNDUH PIDADA KABUPATEN PESAWARAN  Latar Belakang : Malaria merupakan penyakit infeksi yang ditularkan melalui nyamuk dan telah menjadi masalah kesehatan baik di dunia maupun di Indonesia khususnya di daerah Lampung. Populasi vektor malaria sangat dipengaruhi oleh lokasi tempat perindukannya. Tujuan : Mengetahui Karakteristik Fisik, Kimia, dan Biologi Tempat Perindukan Potensial Nyamuk Anopheles Sp. dan Indeks Habitat Di Desa Sukamaju Kecamatan Punduh Kabupaten Pesawaran Provinsi Lampung Tahun 2020. Metode : Jenis penelitian ini merupakan penelitian deskriptif dengan pendekatan cross sectional. Karakteristik fisik dilakukan dengan mekukur suhu dan kedalaman air, karakteristik kimia dengan mengukur pH dan salinitas air, dan karakteristik biologi dengan melihat organisme yang ditemukan di tempat pengambilan sampel. Serta melakukan penghitungan indeks habitat. Hasil : Karakteristik fisik pada tempat perindukan rata-rata suhu air 31,33°C, dan rata-rata kedalaman air 25,840 cm. Karakteristik Kimia pada tempat perindukan rata-rata salinitas air 2,4280‰, dan sebagian besar derajat keasaman (pH) air adalah asam. Karakteristik Biologi pada tempat perindukan sebagian besar terdapat predator air dan tumbuhan. Indeks habitat didapatkan nilai 1%. Kesimpulan : Bahwa tempat-tempat tersebut berpotensi untuk penularan penyakit malaria. Kata Kunci : Anopheles sp., malaria, tempat perindukan

Study on the Influence of the Wastes from Cashew Industry on Environmentally Friendly Bricks

2018 ◽  
Vol 930 ◽  
pp. 120-124
Author(s):  
Francisca Pereira de Araújo ◽  
Josy Anteveli Osajima ◽  
João Sammy Nery de Souza ◽  
Marcelo Barbosa Furtini
Keyword(s):  
Environmentally Friendly ◽  
The State ◽  
The South ◽  
Cashew Nut Shell Liquid ◽  
Cashew Nut ◽  
Soil Cement ◽  
Cashew Nut Shell ◽  
Properties Of Soil

Soil-cement bricks are sustainable and economically viable alternatives due to the possibility of residue utilization. CNSL (Cashew nut shell liquid ) is an example of residue from the cashew industry that can be reused in many applications. Therefore, the present work had as its objective to produce soil-cement bricks having CNSL as a constituent of the formulation. The samples were obtained from the mixture of pure CNSL, soil and cement (1:10). The soils used in the research were extracted from the south of the state and the mixture was pressed in a modular manual press. The samples were submitted to resistance and permeability tests and the results related to resistance and compression showed that the bricks presented an average of 2,3 MPa and were in accordance with what is suggested by NBR 8491/12. The presence of CNSL also altered the permeability of the material which was obtained. Hence, one may conclude that the presence of CNSL satisfactorily influences upon the properties of soil-cement bricks.

El viaje botánico de Pierre Edmond Boissier por el sur de España (1837). The botanical trip of Pierre Edmond Boissier by the South of Spain

2010 ◽  
Vol 35 ◽  
pp. 5-21 ◽  
Author(s):  
Antonio González Bueno
Keyword(s):  
The South ◽  
200Th Anniversary ◽  
Made In

Español.  Coincidiendo con el 200 aniversario del nacimiento de Pierre-Edmond Boissier (1810-1885), presentamos un análisis de su primer viaje por el Sur de España, realizado en 1837: estudiamos los motivos que le impulsaron a llevarlo a cabo, la información que tuvo disponible, el viaje en sí y la publicación de sus resultados en la más señera de sus obras, el Voyage botanique dans le midi de l’Espagne… (París, 1839-1845).English. In the 200th anniversary of the birth of Pierre-Edmond Boissier (1810-1885) we analized his first trip to the south of Spain, made in 1837, the reasons that prompted him to carry out, the information available, the trip itself and the publication of their results in the most outstanding of his works, the Voyage botanique dans le midi de l’Espagne ... (Paris, 1839-1845).

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