Characteristics of Kaolin Clay on Alluvial Formation Subdistrict Mataraman Based on Physical Properties and Chemical Properties

Gabah Beras Merah (GBM) dan Beras Merah (BM) merupakan bahan pangan yang memiliki nilai gizi yang tinggi dan bermanfaat bagi kesehatan. Malting merupakan proses pengolahan serealia dan biji-bijian untuk meningkatkan nilai gizinya dengan tahapan perendaman, germinasi, kemudian pengeringan. Penelitian ini bertujuan untuk mengetahui karakteristik densitas kamba, kelarutan, kadar air, dextrose equivalent, dan aktivitas antioksidan pada tepung malt GBM dan malt BM dengan perlakuan malting pada lama germinasi yang berbeda. Perlakuan malting dilakukan pada lama germinasi 0, 24, 48, dan 72 jam. Data dianalisis menggunakan pola regresi. Hasil penelitian menunjukkan bahwa lama germinasi pada proses malting mempengaruhi karakteristik kimia dan fisik tepung malt GBM dan tepung malt BM dengan korelasi sangat kuat. Pembuatan tepung malt BM menghasilkan tepung dengan karakter fisik dan kimia yang lebih baik dibanding GBM. Waktu tahap germinasi proses malting utamanya pada BM masih dapat dioptimalkan sehingga karakteristiknya masih berpotensi untuk ditingkatkan. Kesimpulannya, lama germinasi dapat mempengaruhi karakteristik kimia dan fisik tepung malt, baik untuk GBM maupun BM.Physical and Chemical Properties of Rough Red Rice Malt and Red Rice Malt Flour with Malting Treatment in Different Germination TimeRough red rice and red rice have high nutritional value and beneficial to health. Malting is a method of processing cereals and grains to increase its nutritional value by soaking, germination, and drying. This study aims to know the characteristic of bulk density, solubility, moisture content, dextrose equivalent, and antioxidant activity of rough red rice malt flour and red rice malt flour with malting treatment in vaious germination times. The data were analyzed using regression pattern with the treatment of malting germination time 0, 24, 48, and 72 hours. Results indicated that the various time of malting germination influenced the chemical and physical properties of rough red rice malt flour and red rice malt flour with very strong correlation. Red rice malt flour had better physical and chemical characteristics than rough red rice malt flour. Germination time in malting process specially for red rice still could be optimized. As conclusion, time of germination affected to the chemical and physical properties of malt flour from rough red rice and red rice.•|•|•

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Chemical and Physical Properties of Some Hazelnut Varieties Grown in Portugal

Agronomy ◽

10.3390/agronomy11081476 ◽

2021 ◽

Vol 11 (8) ◽

pp. 1476

Author(s):

Ana Cristina Ferrão ◽

Raquel P. F. Guiné ◽

Elsa Ramalhosa ◽

Arminda Lopes ◽

Cláudia Rodrigues ◽

...

Keyword(s):

Discriminant Analysis ◽

Physical Properties ◽

Water Activity ◽

Induction Time ◽

Oxidation Stability ◽

Chemical Properties ◽

Physical And Chemical Properties ◽

Nutritional Characteristics ◽

Physical And Chemical ◽

And Chemical Properties

Hazelnuts are one of the most appreciated nuts worldwide due to their unique organoleptic and nutritional characteristics. The present work intended to analyse several physical and chemical properties of different hazelnut varieties grown in Portugal, namely Tonda de Giffoni, Grada de Viseu, Segorbe, Longa de Espanha, Butler, Gunslebert, and Negreta. In general, the results revealed statistically significant differences between the varieties under study. The Gunslebert had more elongated hazelnuts and with heavier shelled fruits, while the kernels of the Grada de Viseu revealed to be heavier. Grada de Viseu was harder in the shell, Gunslebert had a harder core, and Segorbe was more resistant to fracture. Fat was the more representative component for all varieties and in some cases the values of moisture and water activity were over the recommended amount (≥0.62). Tonda de Giffoni was the variety with the highest induction time, indicating the highest oxidation stability. Moreover, discriminant analysis revealed that the variables more important to distinguish the varieties were protein (λ = 0.007) and water activity (λ = 0.010). The results of this study help to better understand the differences between some hazelnut varieties that are cultivated in Portugal, which gives important hints for all players in the hazelnut sector.

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Effect of Mosses on physical and chemical properties of soil in temperate forests of Garhwal Himalayas

Journal of Tropical Ecology ◽

10.1017/s0266467421000249 ◽

2021 ◽

pp. 1-10

Author(s):

Anshu Siwach ◽

Siddhartha Kaushal ◽

Ratul Baishya

Keyword(s):

Physical Properties ◽

Chemical Properties ◽

Nutrient Status ◽

High Rate ◽

Physical And Chemical Properties ◽

Garhwal Himalayas ◽

Forest Sites ◽

Significant Difference ◽

Physical And Chemical ◽

And Chemical Properties

Abstract Mosses are one of the most important and dominant plant communities, especially in the temperate biome, and play a significant role in ecosystem function and dynamics. They influence the water, energy and element cycle due to their unique ecology and physiology. The present study was undertaken in three different temperate forest sites in the Garhwal Himalayas, viz., Triyuginarayan (Kedarnath Wildlife Sanctuary (KWLS)), Chakrata, and Kanasar forest range. The study was focused on understanding the influence of mosses on soil physical properties and nutrient availability. Different physico-chemical properties were analysed under two different substrata, that is, with and without moss cover in two different seasons, viz., monsoon and winter. We observed mosses to influence and alter the physical properties and nutrient status of soil in both seasons. All soil physical and chemical properties, except magnesium, showed significant difference within the substrates, among all the sites and across the two seasons. Besides the soil characteristics underneath the moss vegetation, the study also highlights the diversity of mosses found in the area. Mosses appear to create high nutrient microsites via a high rate of organic matter accumulation and retain nutrients for longer periods thus, maintaining ecosystem stability.

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Study of Relative Metallic Character of Noble Metals Cu, Ag and Au at Normal Temperatures

Materials Science Forum ◽

10.4028/www.scientific.net/msf.1019.174 ◽

2021 ◽

Vol 1019 ◽

pp. 174-178

Author(s):

Ramesh Kumar ◽

Priti Kumari ◽

Kumar Saurav ◽

Purushottam Poddar ◽

Vijay Kumar Verma

Keyword(s):

Physical Properties ◽

Noble Metals ◽

Chemical Properties ◽

Physical And Chemical Properties ◽

Metallic Character ◽

Physical And Chemical ◽

And Chemical Properties

The relative metallic character of noble metals, Cu, Ag & Au has been suggested by their physical and chemical properties. Their position in the metallic series is in the neighborhood of that of Li, Mg and Zn. These Metals are inferior of Li, Mg, Zn, Fe, Co and Ni in metallic character. Li, Mg, Zn, Fe, Co and Ni are inferior to Na, K, Rb, Cs, Ca, Ba and Sr. The noble metals have simple metallic character in physical properties at normal temperatures.

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The Effect of Gelatin Addition from Various Fish Skin to the Physical and Chemical Properties of Chikuwa

Jurnal Ilmu Pangan dan Hasil Pertanian ◽

10.26877/jiphp.v3i1.3796 ◽

2019 ◽

Vol 3 (1) ◽

pp. 78

Author(s):

Muhammad Irvan

Keyword(s):

Protein Content ◽

Chemical Properties ◽

Gel Strength ◽

Chemical Characteristics ◽

Fish Scale ◽

Physical And Chemical Properties ◽

Physical And Chemical Characteristics ◽

Significant Difference ◽

Physical And Chemical ◽

And Chemical Properties

Chikuwa is one of Japanese traditional fishery food product that commonly made from potato starch, fish surimi, and some spices. To enhance Chikuwa physical and chemical properties especially in texture attribute and protein content, Gelatin can be added. Gelatin is a partial hydrolysis protein that usually added in food making process to improve the gumminess quality and the protein content. Gelatin can be derived from bone collagen, skin and fish scale. The purpose of this study is to analyze the effect of gelatin from various skin fish to the physical and chemical characteristics of Chikuwa. The research method used is experimental laboratories using a completely randomized design (CRD) with 3 replications. The data analysed with ANOVA and continued with BNJ analysis if there is a significant difference between the treatments. This research has divided into two stages. The first step aim is to make the gelatin from the skin of seabass, payus fish and tilapia with 3% concentrations. The second step is Chikuwa making added with gelatin. The parameters that observed are water content, protein content, white degree, gel strength, sensory attributes, folding, bite. The results showed that Chikuwa with the addition of gelatin from seabass, payus and tilapia skin are significantly different (p <0.05) due to the physical and chemical characteristics of Chikuwa. The best Chikuwa quality is Chikuwa with the addition of seabass gelatin, where the gelatin yield is 18.03 ± 0.68; the gelatin gel strength is 251.11 ± 1.08 bloom; the viscosity is 5.80 ± 0.15 cP; the gel Chikuwa sample strength is 954.54 ± 0.56 gcm and protein content is 22.01 ± 0.98%

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Application of a-SiO2 Rich Additives in Cement Paste

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.749.362 ◽

2015 ◽

Vol 749 ◽

pp. 362-367 ◽

Cited By ~ 4

Author(s):

Jaroslav Pokorný ◽

Milena Pavlíková ◽

Eva Navrátilová ◽

Pavla Rovnaníková ◽

Zbyšek Pavlík ◽

...

Keyword(s):

Cement Paste ◽

Bending Strength ◽

Setting Time ◽

Chemical Properties ◽

Xrd Analysis ◽

Fast Reaction ◽

Cement Pastes ◽

Matrix Density ◽

Physical And Chemical ◽

And Chemical Properties

The effect of a-SiO2 of various origin on the properties of cement paste with incorporated different silica containing materials is experimentally studied in the paper. For the applied a-SiO2 materials, basic physical and chemical properties are accessed, together with their chemical composition. Amount of amorphous phase of SiO2 in particular siliceous materials is determined using XRD analysis. Matrix density, bulk density, total open porosity, compressive and bending strength are measured for all developed pastes with incorporated a-SiO2 containing materials, together with initial and final setting time of fresh mixtures. The obtained data give evidence on a high and fast reaction activity of tested siliceous materials which results in a significant improvement of porosity and mechanical strength of a-SiO2 modified cement pastes.

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Corrigenda - The effects of minimum cultivation after three years on some physical and chemical properties of a red-brown earth at Forbes, NSW.

Soil Research ◽

10.1071/sr9910263c ◽

1991 ◽

Vol 29 (2) ◽

pp. 263 ◽

Cited By ~ 1

Author(s):

PP Cavanagh ◽

AJ Koppi ◽

AB Mcbratney

Keyword(s):

Organic Carbon ◽

Physical Properties ◽

Bulk Density ◽

Total Nitrogen ◽

Chemical Properties ◽

Water Infiltration ◽

Electrolytic Conductivity ◽

Physical And Chemical Properties ◽

Physical And Chemical ◽

And Chemical Properties

Reducing cultivation may improve many soil physical and chemical properties of a red-brown earth. A trial was set up in 1986 on a red-brown earth near Forbes, N.S.W., comparing direct-drilling and conventional-cultivation crop establishment techniques. The surface soil (0-100 mm) was sampled at the end of the third year and assessed for macropore structure, infiltration characteristics, bulk density, pH, electrolytic conductivity, organic carbon and total nitrogen content. Cultivation degraded some desirable soil physical properties as indicated by data obtained from image analysis and infiltration. Bulk density did not mirror differences in macroporosity. Organic carbon, total nitrogen and electrolytic conductivity levels were higher in direct-drilled soil in comparison to conventionally tilled soil. It ib concluded that the improvement of soil chemical and physical properties afforded by a reduction in tillage would lead to an increase in soil water infiltration rate and storage.

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The effects of minimum cultivation after three years on some physical and chemical properties of a red-brown earth at Forbes, NSW.

Soil Research ◽

10.1071/sr9910263 ◽

1991 ◽

Vol 29 (2) ◽

pp. 263

Author(s):

PP Cavanagh ◽

AJ Koppi ◽

AB Mcbratney

Keyword(s):

Organic Carbon ◽

Physical Properties ◽

Bulk Density ◽

Total Nitrogen ◽

Chemical Properties ◽

Water Infiltration ◽

Electrolytic Conductivity ◽

Physical And Chemical Properties ◽

Physical And Chemical ◽

And Chemical Properties

Reducing cultivation may improve many soil physical and chemical properties of a red-brown earth. A trial was set up in 1986 on a red-brown earth near Forbes, N.S.W., comparing direct-drilling and conventional-cultivation crop establishment techniques. The surface soil (0-100 mm) was sampled at the end of the third year and assessed for macropore structure, infiltration characteristics, bulk density, pH, electrolytic conductivity, organic carbon and total nitrogen content. Cultivation degraded some desirable soil physical properties as indicated by data obtained from image analysis and infiltration. Bulk density did not mirror differences in macroporosity. Organic carbon, total nitrogen and electrolytic conductivity levels were higher in direct-drilled soil in comparison to conventionally tilled soil. It ib concluded that the improvement of soil chemical and physical properties afforded by a reduction in tillage would lead to an increase in soil water infiltration rate and storage.

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Study of the Chemical and Physical Properties of the Fiber-Matrix Interface of Biocomposite Material Based on a Copolymer Matrix Polylactic Acid (PLA)

Recent Innovations in Chemical Engineering (Formerly Recent Patents on Chemical Engineering) ◽

10.2174/2405520412666190123153957 ◽

2019 ◽

Vol 12 (1) ◽

pp. 70-78

Author(s):

Mokhtaria Ould Kada ◽

Allel Mokaddem ◽

Bendouma Doumi ◽

Mohamed Berber ◽

Lahouari Temimi ◽

...

Keyword(s):

Physical Properties ◽

Polylactic Acid ◽

Probabilistic Approach ◽

Chemical Properties ◽

Physical And Chemical Properties ◽

Matrix Interface ◽

Fiber Matrix Interface ◽

Fiber Matrix ◽

Physical And Chemical ◽

And Chemical Properties

Background: In this paper, we have studied the improvement of the physical and chemical properties of the fiber-matrix interface of a Biocomposite based on the copolymer polylactic acid (PLA). Methodology: We have developed an analytical model using a genetic approach to locate the interface damage under the effect of mechanical stress, temperature and humidity. Our simulation is based on Weibull's probabilistic approach and the law of water diffusion in polymer matrix, the diffusion is generated by Fick's law. Results: Our results show that the interface of Biocomposite (Starch-PLA) is the most resistant to the different constraints applied and that the physical and chemical properties of this material are much more improved compared to other materials studied by the same genetic model. Conclusion: Our calculations coincide perfectly with the conclusions of Antoine et al. who determined that natural fibers improve the physical properties of composite materials.

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The Compounding of Hard Rubber (Natural and Synthetic)

Rubber Chemistry and Technology ◽

10.5254/1.3546994 ◽

1950 ◽

Vol 23 (1) ◽

pp. 266-280 ◽

Cited By ~ 1

Author(s):

W. Murray Gall

Keyword(s):

Physical Properties ◽

Chemical Properties ◽

High Grade ◽

Physical And Chemical Properties ◽

Similar Materials ◽

Physical And Chemical ◽

Plastics Industry ◽

And Chemical Properties ◽

Natural And Synthetic

Abstract Hard rubber, frequently called ebonite, is a material which has many desirable physical and chemical properties. The relatively new plastics industry has offered stiff competition, yet it is reasonably safe to say that, for certain applications, nothing else can be substituted for hard rubber and still maintain its unique properties. One of the principal qualities of this material is its finished appearance. When a high-grade ebonite compound is properly processed, it can be given a high lustrous finish which sets it apart from similar materials for beauty and richness. The highest grade of hard rubber is a compound containing only rubber and sulfur. It is in this type of compound that maximum physical properties and highest luster are found.

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