scholarly journals Ekstraksi dan Identifikasi Komponen Utama Pasir Putih dari Desa Marinsow Kabupaten Minahasa Utara dengan Pengujian XRF dan XRD

2020 ◽  
Vol 5 (2) ◽  
pp. 78
Author(s):  
Billy Gabriel Langi ◽  
Meyti J Rampe ◽  
Soenandar M T Tengker
Keyword(s):  
Crystal Structure ◽  
Fusion Method ◽  
Calcite Crystal ◽  
White Sand ◽  
North Sulawesi ◽  
Naoh Solution ◽  
Main Components ◽  
Main Component ◽  
The Village ◽  
Silica Crystals

North Sulawesi is one of the regions in Indonesia which has a wealth of natural resources which is quite abundant, one of the natural potential that can be utilized is White sand. White sand has a composition that is SiO2, CaO, Fe2O3, TiO2, MgO. This study aims to identify the composition of the main components of white sand through XRF testing and the results of extraction of white sand from Marinsow village using the alkaline fusion method, NaOH solution for extracting and crystallizing the formation of silica crystals and tested using XRD testing to determine the crystal characteristics. Extraction and testing processes have been carried out using XRF and XRD on white sand samples taken in Marinsow Village, North Minahasa Regency. The results of the identification of the components of the white sand constituents through XRF testing namely CaO is the largest main component of the white sand compilers in the village of Marinsow which is as much as 89.97%. The content of SiO2 compounds in white sand (Marinsow) is as much as 1.41%. Other components found in white sand from Marinsow village, North Minahasa Regency include MgO as much as 5.85%, SrO as much as 2.31%, Fe2O3 as much as 0.277 %, TiO2 is 0.079%, Cr2O3 is 0.032%, Nb2O5 is 0.0238%, MoO3 is 0.0159%, SnO2 is 0.0082%, Sb2O3 is 0.0079% and RuO4 is 0.0074%. The results of XRD testing on white sand taken in the village of Marinsow give results that white sand has a calcite crystal structure (CaO) and for the SiO2 silica component is quartz.

OIL CONTENT AND CHEMICAL COMPOSITION IN THE PARTS OF OIL PALM FRUIT FROM 8 IOPRI VARIETIES

2018 ◽  
Vol 24 (2) ◽  
pp. 67-76
Author(s):  
Sujadi Sujadi ◽  
Hasrul Abdi Hasibuan ◽  
Meta Rivani ◽  
Abdul Razak Purba
Keyword(s):  
Fatty Acid ◽  
Palmitic Acid ◽  
Oil Palm ◽  
Oil Content ◽  
Mean Value ◽  
Oleic Acid Content ◽  
Palm Fruit ◽  
Fruit Samples ◽  
Main Components ◽  
Main Component

Fresh fruit bunches (FFB) consist of fruit be composed grade in few spikelet. Fruit at a spikelet can be distinguished into performed fruit namely internal fruit, middle fruit and outer fruit as soon as each section contain parthenocarpy fruits. This research was conducted for determine composition and content fatty acid of oil at internal fruit, middle, outer and parthenocarpy fruit from oil palm fruit. Samples of fruit came from 3 – 5 spikelet the central of FFB. Result showed that oil content of outer fruit (46.9 + 9.9)% trend higher be compared middle fruit (42.8 + 10.3)% and internal fruit (39.1 + 9.5)%. Parthenocarpy fruits have a low oil content (14.2 + 16.2)% except yellowish fruit trend high relatively oil content. The main components of fatty acid at outer fruit, middle and internal are palmitic acid, oleic, linoleic and stearic with mean value respectively (44.8 – 45.8)%, (37.6 – 38.0)%, (9.9 – 10.9)% and (4.6 – 4.8)%. Oil content at parthenocarpy fruit have amount main component of fatty acid with performed fruit but composition of palmitic acid (40.0 + 5.9)% and oleic (34.6 + 8.4)% lower while linoleic acid (16.9 + 8.5)% and linolenic (1.6 + 1.8)% higher be compared to performed fruit. Simalungun variety has the highest oil content in the part of fruit, with that PPKS 540 and La Mé respectively. PPKS 540 variety has the highest oleic acid content while PPKS 718 has the highest linoleic content.

scholarly journals Behavioral and Antennal Responses of Tribolium confusum to Varronia globosa Essential Oil and Its Main Constituents: Perspective for Their Use as Repellent

Molecules ◽  
2021 ◽  
Vol 26 (15) ◽  
pp. 4393
Author(s):  
Cesar Auguste Badji ◽  
Jean Dorland ◽  
Lynda Kheloul ◽  
Dimitri Bréard ◽  
Pascal Richomme ◽  
...  
Keyword(s):  
Essential Oil ◽  
Tribolium Confusum ◽  
High Dose ◽  
Synthetic Chemicals ◽  
Stored Product Pest ◽  
Indigenous Plant ◽  
Main Components ◽  
Electroantennogram Recordings ◽  
The Individual ◽  
Main Component

Essential oils of aromatic plants represent an alternative to classical pest control with synthetic chemicals. They are especially promising for the alternative control of stored product pest insects. Here, we tested behavioral and electrophysiological responses of the stored product pest Tribolium confusum, to the essential oil of a Brazilian indigenous plant, Varronia globosa, collected in the Caatinga ecosystem. We analyzed the essential oil by GC-MS, tested the effects of the entire oil and its major components on the behavior of individual beetles in a four-way olfactometer, and investigated responses to these stimuli in electroantennogram recordings (EAG). We could identify 25 constituents in the essential oil of V. globosa, with anethole, caryophyllene and spathulenole as main components. The oil and its main component anethole had repellent effects already at low doses, whereas caryophyllene had only a repellent effect at a high dose. In addition, the essential oil abolished the attractive effect of the T. confusum aggregation pheromone. EAG recordings revealed dose-dependent responses to the individual components and increasing responses to the blend and even more to the entire oil. Our study reveals the potential of anethole and the essential oil of V. globosa in the management of stored product pests.

Influence of Mineralogical Origin of Limestone Powder on the Performance of Complex Binder Material

2011 ◽  
Vol 477 ◽  
pp. 136-141
Author(s):  
Qin Wang ◽  
Jia Long Chen ◽  
Chang Cheng Zhang ◽  
Wei Niu
Keyword(s):  
Crystal Structure ◽  
Clay Mineral ◽  
Lamellar Structure ◽  
Perfect Crystal ◽  
Limestone Powder ◽  
Elemental Component ◽  
Binder Material ◽  
Complex Binder ◽  
Main Components ◽  
Perfect Crystal Structure

The effect of mineralogical origin, elemental component, crystal structure of three types of limestone powder on the fluidity of cement-limestone paste and mortar was investigated. The results show that the limestone powder originated from the mine of limestone and river pebble have better water-reducing effect, which is closely correlated with the main components of Calcite and Dolomite. These two mineral have relatively regular, orderly and perfect crystal structure with few defects and unfilled pores which are liable to adsorb more water and water-reducing agents. On the contrary, the limestone powder derived from the mine of sandstone has nearly no water-reducing effect which is ascribed to the large amount of clay mineral which exhibit lamellar structure leading to the large quantity of consumption of water.

DUST-BORNE TRACE GASES AND ODORANTS The analysis of dust-borne trace gases requires their i-solation from the dust particles. Procedures for the isolation and characterization of trace gases and odorants in the dust from pig houses are given by SCHAEFER et al. (29), HAMMOND et al.(30) and TRAVIS and ELLIOTT (31). Alcoholic solvents were found to be effective for the extraction of volatile fatty ac­ ids and phenols from the dust of hen (32) and pig houses (33), (34). Today, gas chromatography is usually used for the sepa­ ration and identification of the trace gases. Table IV gives a literature review of compounds identified in the dust of pig houses. There are only very few reports on investigations on the dust from hen houses (32). Most of the odours coming from livestock production units are associated with the biological degradation of the animal wastes (35), the feed and the body odour of the animals (1). Volatile fatty acids and phenolic compounds were found to con­ tribute mostly to the strong, typical odour of animal houses by the help of sensory evaluations parallel to the chemical analysis (29),(30). Table V gives quantitative values of volatile fatty acids and phenolic/indolic compounds found in the aerosol phase and in settled dust of piggeries, respectively. The results from the aerosol phase coincide, particularly as far as acetic acid is concerned. For the investigations of the settled dust the coefficients of variation (CV) and the relative values (%) characterizing the percentage of the single compounds as part of the total amount are quoted. The values are corrected with the dry matter content of the dust. Main components are acetic acid and p-cresol, respectively. Table VI compares results from air, dust and slurry in­ vestigations on VFA and phenolic/indolic compounds in piggeries. Relative values are used. When comparing the results derived from investigations on dust, air or slurry it is necessary to use relative values because of the different dimensions, for experience shows that in spite of large quantitative differ­ ences between two samples within the group of carboxylic acids and within the group of phenolic/indolic compounds the propor­ tions of the components remain rather stable (36). In the group of VFA acetic acid is the main component in air, dust, and slurry followed by propionic and butyric acid. The other three acids amount to less than 25%. In the group of phenols/ indoles p-cresol is the main component in the four cited in­ vestigations. However, it seems that straw bedding can reduce the p-cresol content; in this case phenol is the main compo­ nent , i nstead (37 ). 4. EMISSION OF DUST-BORNE VFA AND PHENOLS/INDOLES FROM PIGGERIES The investigations of dust from piggeries show that both VFA and phenols/indoles are present in a considerable amount. However, compared to the air-borne emissions calculated on the base of the results of LOGTENBERG and STORK (38) less than the tenth part (1/10) of phenols/indoles and about the hundredth part (1/100) of VFA are emitted by the dust, only. Table VII compares the dust-borne and air-borne emissions of VFA and

1986 ◽  
pp. 337-337
Keyword(s):  
Fatty Acids ◽  
Acetic Acid ◽  
Volatile Fatty Acids ◽  
Trace Gases ◽  
Matter Content ◽  
Biological Degradation ◽  
Indolic Compounds ◽  
Settled Dust ◽  
Main Components ◽  
Main Component

scholarly journals Judiciary and legal principles for the development of a profile for the profession of detectives of the National Police of Ukraine

2018 ◽  
Vol 68 (1) ◽  
pp. 50-55
Author(s):  
V. P. Ostapovich
Keyword(s):  
Professional Activity ◽  
Occupational Risk Factors ◽  
Legal Principles ◽  
Personal Qualities ◽  
Main Components ◽  
Main Component ◽  
National Police ◽  
Negative Factors ◽  
Theoretical Foundations ◽  
Selection Of

The author has studied the problem of the development of theoretical foundations and methodical tools for conducting job research within the National Police of Ukraine. The author has stated theoretical grounds of creating a profile for the profession of a detective; has revealed the possibilities of using some methods and means of job research for the development of modern profiles of the professions of the system of the National Police of Ukraine. It has been demonstrated that a profile of the profession as a set of parameters characterizing a successful specialist, a professional in a certain field of professional activity, is an important component of the job description. The main component of the profile is the characteristic of psychological peculiarities of professional activity.On the basis of experimental research, the author has formulated the requirements of the profession to the motivational sphere of a specialist, his abilities, temperamental and characterological traits, etc. The main components of the profile of a detective’s profession have been considered. The author has described such structural components of the profile of the profession as general characteristics of the activity, working conditions, negative factors, occupational risk factors, psychological characteristics and professionally important personal qualities of a specialist. The author has provided the demands of the profession to the sensory and perceptual sphere of a detective, general and special abilities, the features of temperament and character, motivation, emotional and volitional qualities. It has been emphasized that comprehensive study of professional police activity based on the development of profiles of the profession is a prerequisite for solving problems related to the efficiency of using personnel potential, optimizing the selection of the most appropriate candidates for the police force, training and retraining of personnel, rationalization of work and reduction of injuries, etc.On the basis of a broad experimental study, the author has established the list of the main professional qualities of a detective of the National Police; has determined the qualitative and quantitative psychological and psychophysiological indicators recommended for the professional activity. The author has also established psychological and psychophysiological contraindications for overtaking the professional activity of a detective (a criminal police officer).

scholarly journals OIL CONTENT AND CHEMICAL COMPOSITION IN THE PARTS OF OIL PALM FRUIT FROM 8 IOPRI VARIETIES

2016 ◽  
Vol 24 (2) ◽  
pp. 67-76
Author(s):  
Sujadi Sujadi ◽  
Hasrul Abdi Hasibuan ◽  
Meta Rivani ◽  
Abdul Razak Purba
Keyword(s):  
Fatty Acid ◽  
Palmitic Acid ◽  
Oil Palm ◽  
Oil Content ◽  
Mean Value ◽  
Oleic Acid Content ◽  
Palm Fruit ◽  
Fruit Samples ◽  
Main Components ◽  
Main Component

Fresh fruit bunches (FFB) consist of fruit be composed grade in few spikelet. Fruit at a spikelet can be distinguished into performed fruit namely internal fruit, middle fruit and outer fruit as soon as each section contain parthenocarpy fruits. This research was conducted for determine composition and content fatty acid of oil at internal fruit, middle, outer and parthenocarpy fruit from oil palm fruit. Samples of fruit came from 3 – 5 spikelet the central of FFB. Result showed that oil content of outer fruit (46.9 + 9.9)% trend higher be compared middle fruit (42.8 + 10.3)% and internal fruit (39.1 + 9.5)%. Parthenocarpy fruits have a low oil content (14.2 + 16.2)% except yellowish fruit trend high relatively oil content. The main components of fatty acid at outer fruit, middle and internal are palmitic acid, oleic, linoleic and stearic with mean value respectively (44.8 – 45.8)%, (37.6 – 38.0)%, (9.9 – 10.9)% and (4.6 – 4.8)%. Oil content at parthenocarpy fruit have amount main component of fatty acid with performed fruit but composition of palmitic acid (40.0 + 5.9)% and oleic (34.6 + 8.4)% lower while linoleic acid (16.9 + 8.5)% and linolenic (1.6 + 1.8)% higher be compared to performed fruit. Simalungun variety has the highest oil content in the part of fruit, with that PPKS 540 and La Mé respectively. PPKS 540 variety has the highest oleic acid content while PPKS 718 has the highest linoleic content.

scholarly journals Actinopterygians of The Permian Locality Buxières-Les-Mines (Bourbonl’archambault Basin, France) and Their Relationship to Other Early Actinopterygians

2018 ◽  
Vol 74 (3-4) ◽  
pp. 245-291
Author(s):  
Stanislav Štamberg
Keyword(s):  
Coal Mine ◽  
Shoulder Girdle ◽  
Great Variability ◽  
Anatomical Features ◽  
The Third ◽  
Skull Roof ◽  
New Knowledge ◽  
Main Component ◽  
The Village ◽  
Dermal Bones

Actinopterygians from the large opencast coal mine in the vicinity of the village of Buxières-les-Mines (Bourbonl’Archambault Basin, Allier, France) are revisited and redescribed based on newly studied specimens. The understanding of the anatomy of Progyrolepis heyleri POPLIN, 1999, originally described by Poplin (1999) on the basis of the upper and lower jaws only, is greatly enhanced and is relatively complete. The anatomy of the palatoquadrate, dermal bones of the skull roof, hyoid arch, operculum, suboperculum, shoulder girdle, cheek bones and branchiostegal rays is described. In addition, new observations have been made on changes in the shape of the maxilla during ontogenesis and microstructure of the teeth. Details of Progyrolepis heyleri scales, including their microstructure and morphology of the ridge scales are provided. The collection of whole individuals, body fragments and numerous isolated bones provide confirmation of the presence of Aeduella blainvillei which is the main component of the actinopterygian fauna in Buxières-les-Mines. Additional new knowledge was obtained regarding the great variability in bones of the opercular apparatus and maxilla, presence of the supraorbital, branchiostegal ray with a conspicuous hyoid process and the direction of mutual overlapping of the suboperculum and branchiostegal ray in Aeduella blainvillei (AGASSIZ, 1833). Microsculpture on the scales is redescribed in this species. Paramblypterus cf. duvernoy is the third member of the actinopterygians in the locality Buxières-les-Mines. Fragments of Paramblypterus are very rare and the bones of the skull roof are presented here. Anatomical features of Progyrolepis heyleri, Aeduella blainvillei and Paramblypterus cf. duvernoy were studied and compared with those of other Devonian and Permo-Carboniferous actinopterygians.

scholarly journals ANALISIS FINANSIAL USAHA PEMBENIHAN IKAN LELE SANGKURIANG (Clarias gariepinus) DI DESA TATELI DUA KECAMATAN MANDOLANG KABUPATEN MINAHASA PROVINSI SULAWESI UTARA

2016 ◽  
Vol 4 (7) ◽  
Author(s):  
Maria Binei ◽  
Victoria E.N. Manoppo ◽  
Djuwita R.R. Aling
Keyword(s):  
Return On Investment ◽  
Financial Analysis ◽  
Clarias Gariepinus ◽  
Profit Rate ◽  
Hatchery Fish ◽  
Operating Profit ◽  
North Sulawesi ◽  
One Year ◽  
Break Even Point ◽  
The Village

Abstrak Penelitian ini bertujuan untukmengetahui kelayakan usaha pembenihan ikan lele sangkuriang (Clarias gariepinus) di Desa Tateli Dua Kecamatan Mandolang Kabupaten Minahasa Provinsi Sulawesi Utara dari aspek finansialnya dan Untuk mendeskripsikan faktor-faktor apa saja yang turut mempengaruhi dalam usaha pembenihan ikan lele sangkuriang (Clarias gariepinus) di Desa Tateli Dua Kecamatan Mandolang Kabupaten Minahasa Provinsi Sulawesi Utara. Berdasarkan hasil analisis secara finansial, usaha pembenihan ikan lele sangkuriang di Desa Tateli Dua tersebut sangat layak dijalankan karena semua nilai Operating Profit positif , Profit Rate dari usaha tersebut mencapai 31%, nilai BCR > 1, usaha tersebut termasuk kategori sangat baik karena mempunyai nilai rentabilitas >100%, BEP atau titik impas tidak sama yaitu BEP penjualan Rp. 8.607.285, BEP satuan 8.197 ekor. tingkat pengembalian investasi dari usaha pembenihan ikan lele sangkuriang tersebut sangat layak dijalankan karena dapat mengembalikan investasi kurang dari 1 tahun, yaitu 0,5 tahun. Kata Kunci : Analisis Finansial, Usaha, Pembenihan Ikan Lele Sangkuriang, Kecamatan Mandolang Abstrack This study aims to determine the feasibility of hatchery fish catfish (Clarias gariepinus) in the village of Tateli Two sub district Mandolang Minahasa North Sulawesi province of aspects of financial and To describe what factors are also influencing the business hatchery fish catfish (Clarias gariepinus) Village Tateli Two subdistrict Mandolang Minahasa North Sulawesi Province. Based on the analysis in the financial, business hatchery fish catfish in the village Tateli Two is very viable for all grades Operating Profit positive, Profit Rate of the effort reaches 31%, the value of BCR> 1, these efforts included the very good category because it has the value of earnings > 100%, BEP or break-even point at which the sale of BEP Rp. 8,607,285, 8,197 units BEP tail. the return on investment of catfish fish hatchery operations is very viable because it can recover the investment of less than one year, which is 0.5 years. Keywords: Financial Analysis, Business, Catfish Hatchery Sangkuriang, District Mandolang

scholarly journals Chemical Composition and Behavioral Responses of the Marine Insect Halobates hawaiiensis (Heteroptera: Gerridae)

2001 ◽  
Vol 56 (7-8) ◽  
pp. 597-602 ◽  
Author(s):  
Maria Tsoukatou ◽  
Lanna Cheng ◽  
Constantinos Vagias ◽  
Vassilios Roussis
Keyword(s):  
Surface Lipid ◽  
Chemical Profile ◽  
Behavioral Differences ◽  
Surface Waxes ◽  
Males And Females ◽  
Main Components ◽  
Main Component ◽  
Airborne Chemicals ◽  
Laboratory Bioassays ◽  
Marine Insect

Halobates is the only insect genus with representatives in the open ocean. How adults find one another at sea has long been an intriguing issue. Since chemical communications have been demonstrated in a related marine veliid Trochopus, and laboratory bioassays indicated behavioral differences between males and females when insect extracts were presented, we carried out similar studies on Halobates. Analyses of surface lipid constituents of female and male Halobates hawaiiensis revealed marked differences. Palmitic and oleic acid, major constituents in the male extracts, were absent in the female extract, whereas nonacosenol, dominating the female extracts, was not detected in the male extracts. Analyses of nymphal extracts indicated an intermediate chemical profile. Surface waxes of all insect stages investigated showed nonacosanol and isononacosanol to be main components. “Headspace” analyses of airborne chemicals showed high levels of 4-hydroxy-4-methyl-2-pentanone and benzal­dehyde from the male, whereas benzyl alcohol was the main component in the female mixture

scholarly journals Karakteristik Edible Film Berbahan Dasar Ekstrak Karagenan dari Alga Merah (Eucheuma Spinosum)

2021 ◽  
Vol 1 (1) ◽  
pp. 24-32
Author(s):  
Ani Nurmilla ◽  
Nety Kurniaty ◽  
Hilda Aprillia W
Keyword(s):  
Red Algae ◽  
Edible Film ◽  
Coating Film ◽  
Percent Elongation ◽  
Red Algal ◽  
Naoh Solution ◽  
Main Components

Abstract. Nowadays, edible film is a food coating film that has been developed as a food wrapper. The main components for edible film include carrageenan, starch and pectin. This study aims to isolate carrageenan from red algae and find the best edible film formula from red algal carrageenan. Carrageenan was isolated using NaOH solution of various concentrations of 0.5; 1,0; 1.5 and 2.0 N. Carrageenan which has the best characteristics is then made into an edible film with the addition of glycerol as a plasticizer. Edible film formula is made with four variations of carrageenan concentration, i.e. 1; 1,5; 2 and 2.5%. The results of carrageenan isolation produced the best yield using 2N NaOH, which was 8.4%. The best edible film is edible film made from carrageenan 2.5% because it has the best percent elongation of 77%. Abstrak. Edible film merupakan film penyalut makanan yang banyak dikembangkan akhir-akhir ini sebagai pembungkus makanan. Komponen utama penyusun edible film diantaranya adalah karageenan, pati dan pektin. Penelitian ini bertujuan untuk mengisolasi karagenan dari alga merah dan mencari formula edible film dari karagenan alga merah yang paling baik. Karagenan diisolasi dengan menggunakan larutan NaOH berbagai konsentrasi yaitu 0,5; 1,0; 1,5 dan 2,0 N. Karagenan yang memiliki karakteristik paling baik kemudian dibuat menjadi edible film dengan tambahan gliserol sebagai plastisizer. Formula edible film dibuat dengan empat variasi konsentrasi karagenan, yaitu 1; 1,5; 2 dan 2,5%. Hasil isolasi karagenan menghasilkan yield yang paling baik menggunakan NaOH 2N, yaitu sebesar 8,4%. Edible film yang paling baik adalah edible film yang dibuat dari karagenan 2,5% karena memiliki persen pemanjangan yang paling baik yaitu 77%.

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