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PENGARUH SUBSTITUSI IKAN TUNA (Thunnus sp) TERHADAP MUTU ORGANOLEPTIK DAN KIMIA ABON JANTUNG PISANG (Musa acuminate balbisiana colla) dara, widia; Fanyalita, Antia
Sainstek : Jurnal Sains dan Teknologi Vol 9, No 1 (2017)
Publisher : IAIN Batusangkar

The purpose of this research is to know the making of shredded banana flower that has been boild and fried (abon) with an experiment of tuna substitution of 0%, 25%, 50% and 75% from weight of banana flower. The highest yield of 42% was obtained from the making of abon consisting of 25% banana flower and 75% tuna. The best result of organoleptic test result is D treatment (comparison of banana flower and tuna were 25%: 75%) in the likes category. Protein content increases with the increasing number of substitutes of tuna , otherwise the fiber content decreases. Fat content was between 18-20%. The most preferred abon chemical content (abon D) in every 100 g of abon contains 302 calories, 20.6% carbohydrate, 14.0% protein, 18.2% fat, ash content 4.2% and water content 42.9% and fiber 0.92 g. Abon D is made from 25% banana heart and 75% tuna meets SNI abon fish standard, except for the water content is still a bit high that is more than 10% of SNI standards.

PERUBAHAN SUDUT POLARISASI ALAMI DAN ELEKTROOPTIS MINYAK SAWIT YANG DICAMPUR BERBAGAI MINYAK HEWANI Idrus, Hadiyati; Kaltsum, Ummi; Firdausi, K. Sofjan
Sainstek : Jurnal Sains dan Teknologi Vol 9, No 1 (2017)
Publisher : IAIN Batusangkar

Palm oil-based cooking oil is the most widely used cooking oil. Palm oil circulating in the market is often mixed with animal oil by culinary entrepreneurs with a view to produce a more tasty taste so it needs to be examined purity. Research on the content of saturated fatty acids using gas chromatography mass spectrophotometer (GCMS) requires quite expensive cost so that an alternative method is needed to determine the quality of cooking oil; especially its purity is by using polarization both naturally and by electrooptic method. This research uses incandescent lamp as light source. Samples flanked by parallel metal plates are placed between polarizers and analyzers. Samples of a mixture of palm oil with each animal oil (chicken oil, pork oil, cow oil). The samples of each oil are tested byu using natural polarization (active polarization) and electro-polarization polarization (impact polarization). The results showed that the polarization angle change in the oil of the mixture was greater than that of pure palm oil with the greatest angular change produced by a mixture of palm oil and cow oil (1.5 for natural polarization and 3 for electro-polarization). This result was in accordance with the result of the titration test shows that mixed oils have free fatty acids and PV peroxide numbers higher than pure palm oil. The cow's oil mix is the greatest change compared to pigs and chickens. This result shows that cow's oil has the highest saturated fatty acid content. Electrooptical polarization angle larger than natural polarization. This is due to the interaction of the electric field of the light source with the electric field of the molecule induced by the electric field of the power supply. The polarization method successfully distinguishes the type of pure and mixed cooking oil.

PEMERIKSAAN KADAR PESTISIDA DALAM DARAH PETANI BAWANG MERAH DI NAGARI ALAHAN PANJANG Marisa, Marisa; Arrasyid, Akbar Septian
Sainstek : Jurnal Sains dan Teknologi Vol 9, No 1 (2017)
Publisher : IAIN Batusangkar

Purpose of this study to determine whether or not farmers exposed to pesticides the and the inhalation pesticide factors in blood on farmers of onion in Alahan Panjang. The population in this study was the farmers of onion in Alahan Panjang. The sample were 5 farmers. The research instrument by Cholinesterase test in the district LABKESDA Solok. Cholinesterase test result can be determined by mean of photometer 5010. Examination result in onion farmers Alahan Panjang village revealed that one of the farmers contained below normal Cholinesterase in blood. The inhalation pesticide factors on onion farmer can be caused by years of service or length of work, health status, lack of knowledge of farmers in the use the pesticide such as spraying exceeds the set time, do not wear personal protective equipment in the spraying and personal hygiene farmers. It is recommended that farmers Cholinesterase below normal not use pesticides before to cholinesterase returned to normal, and following the extension and use pesticide safely.

ANALISIS KADAR LOGAM TIMBAL (Pb) PADA RAMBUT KARYAWAN SPBU Mayaserli, Dyna Putri; Renowati, Renowati; Biomed, M
Sainstek : Jurnal Sains dan Teknologi Vol 9, No 1 (2017)
Publisher : IAIN Batusangkar

Development in the field of health is the achievement of an optimal public health degree. Among people who are often exposed to air pollution such as lead metal (Pb) is a gas station officer. One of the objectives of this research is to figure out the differences of lead level (Pb) in the hair of SPBU workers who base on Jl. Ir. Juanda based on length of service period by using experimental research to analyze Pb metal at gas station workers. The population and sample of research is hair of three gas station workers that contains metal of lead (Pb). The results of this study revealed that the longer employment period of workers, the higher the Pb level in their hair and the percentage recovery value for the wet destruction method using HNO3 and HCLO4 has an average recovery of 96.23% which is the precision test value of 4.01%. It is recommended that the validation test then use another method of dry destruction and examine the identity of age, place of birth date and lifestyle.

UJI AKTIVITAS ANTIMIKROBA EKSTRAK KULIT BUAH NAGA (Hylocareus costarisensis) TERHADAP E.coli, Staphylococcus aureus, DAN Candida albicans Shinta, Dewi Yudiana; Hartono, Adi
Sainstek : Jurnal Sains dan Teknologi Vol 9, No 1 (2017)
Publisher : IAIN Batusangkar

Hylocareus costarisensis more commonly known as red dragon fruit are beneficial as antioxidant and a source of natural pigments and potentially as antimicrobial. Journal of Food Research points out that the content of Phenol in the peel of red dragon fruit is greater than the the red dragon fruit itself. Phenol contained in the dragon fruit peel can be useful as antimicrobial because it can lower the surface tension of the microbial. This study therefore aims to figure out whether there is an effect the phenol of Red Dragon Fruit Peel (Hylocareus Costarisensis) extract on the ability to block the growth of microbial patogent such as E.coli, Staphylococcus aureus, and Candida albicans and to figure out the compounds found in in the dragon fruit peel . This research employs statistical analysis experiment design by using One Way ANOVA test. The concentration of Red Dragon Fruit Peel extract used was 0,4 gr, 0,8 gr, 1,4 gr, 1,8 gr, 2,0 gr and positive control concentration thinning microbial 1,8 x 103Cell/ml. These studies demonstrated that the antimicrobial compounds in extract of Red Dragon Fruit Peel is Acetic Acid, Formic Acid and Phenol. This research also indicates that the bigger dose of Red Dragon Fruit Peel, the greater power ability to block the growth. The ability to block the growth of microbial is statistically significant (p< 0,05) after giving of Red Dragon Fruit Peel extract

PROSES BERPIKIR MAHASISWA QUITTER DALAM MENYELESAIKAN MASALAH GEOMETRI DENGAN PEMBERIAN SCAFFOLDING DI JURUSAN PENDIDIKAN MATEMATIKA IAIN BUKITTINGGI M.Imamuddin, M.Imamuddin
Sainstek : Jurnal Sains dan Teknologi Vol 9, No 1 (2017)
Publisher : IAIN Batusangkar

The role of lecturers to improve students mathematical errors and to lead students to achieve higher potential developments is by (1) facilitating students to connect their current knowledge to the previous ones, (2) encouraging students to continue learning, (3) providing sufficient assistance (scaffolding) to the students toward independence, (4) trigger students to always think so that the development of the scheme is always increasing, and (5) help students internalize the knowledge so that ultimately can construct his knowledge. Scaffolding is one way to assist students in overcoming difficulties solving geometry problems. The purpose of this research is to describe quitter students' thinking process in solving geometry problem by giving scaffolding in Mathematics Education Department of IAIN Bukittinggi. This research employs qualitative research that seeks to express in depth the process of thinking of quitter students in solving geometry problem by giving scaffolding, by using study process of student mathematics concept and its diagnosis through cognitive map. The results showed that quitter students' thinking process in solving geometry problem with scaffolding was unique and interesting. Each student has different ways of solving problems. Problem of difficulty are also experienced by quitter students. Scaffolding provided varies according to the needs of each student to develop his thinking process. By providing scaffolding in general, the process of thinking the subject of research to develop in line with the structure of the problem.

PENGEMBANGAN ALAT PRAKTIKUM GERAK JATUH BEBAS MENGGUNAKAN SENSOR PHOTOTRANSISTOR UNTUK PEMBELAJARAN FISIKA PADA MATERI GERAK JATUH BEBAS Maiyena, Sri; Imamora, Marjoni; Ningsih, Fitri
Sainstek : Jurnal Sains dan Teknologi Vol 9, No 1 (2017)
Publisher : IAIN Batusangkar

This study aims to produce free fall practicum tools by utilizing phototransistor sensors to record the travel time of objects that fall from the starting point to the end point. Dealing with free falling equipment (GJB), equipment in schools is generally still very simple that is using a stopwatch. This type of research is a research and development using 4-d model (define, design, develop and disseminate), which is limited to the stage of development to practicalization activities. Data were collected through validation and responses toward administered questionnaires. Data analysis were conducted by analyzing validation sheet and quantitative response questionnaire by finding percentage of each item on the validation sheet. Then the data validation results are analyzed by descriptive technique to describe the quality of the developed product. The result of calibration of free fall practicum by using phototransistor sensor at 40 cm, 50 cm, and 70 cm distance obtained the average travel time of each object is 0.28 s, 0.32 s, and 0.37 s. These results indicate that the practicum tool has been calibrated. Validation of practicum tool is 72,39% and validation of questionnaire response of practican is 75%, indicating tool categorized valid. Furthermore, this tool is tested in class X.MIA and XI.MIA MAN 3 Payakumbuh which consisted 23 students in the science laboratory of MAN 3 Payakumbuh with the questionnaire response practicality are 87.75% and 84.41% respectively which are categorized very practical.

VERIFIKASI ANALISA KADAR LOGAM TIMBAL (Pb) DALAM DARAH DAN GAMBARAN HEMATOLOGI DARAH PADA PETUGAS TAMBANG BATU BARA Rosita, Betti; Sosmira, Eri
Sainstek : Jurnal Sains dan Teknologi Vol 9, No 1 (2017)
Publisher : IAIN Batusangkar

Verification is performed on a method to prove that the relevant laboratory is capable of testing by such method with valid results Validation of the results of the examination to be performed by laboratory personnel to reinforce and confirm that the method used in accordance with its use, such as in the use of wet digestion method with test equipment that supports the laboratory is an Atomic Absorption Spectrometer (AAS), principally for the analysis of metal content in blood samples. One of the metals that may be contaminated with blood are metal Plumbum (Pb) threats to health such as the circulatory system and the central nervous system of humans, other negative impacts caused that damage to the kidneys, anemia, liver and reproductive system of humans. This research is an experiment, The results showed the blood sample examination officer Bara stone mine average Pb content results are still below the threshold (NAB) is 0.292 mg / L in accordance with Kepmenkes No. 1406 2002 of <10 g / L of blood price 0.5996% precision (<2%), the accuracy of 104.55% (100% ± 15%), LOD and LOQ 0.0252982 0.007589946 ppm ppm for the validation of the results can be stated that the method of destruction wet for test equipment SSA fit for use and picture examination results of laboratory hematolgi blood samples showed the complete blood still in the normal range whereas when viewed in counts an increase in lymphocytes of 40% and 37% (normal 25-35%) and monocyte 6% (normally 2-4%) indicate that the blood of those officers already contain lead (Pb).

MULTI-OBJECTIVE VEHICLE ROUTING PROBLEM WITH TIMES WINDOWS DENGAN PENDEKATAN GOAL PROGRAMMING UNTUK MENYELESAIKAN MASALAH OPTIMISASI RUTE PERJALANAN BUS PARIWISATA Manaqib, Muhammad; Pantoro, Renova Dedi
Sainstek : Jurnal Sains dan Teknologi Vol 9, No 1 (2017)
Publisher : IAIN Batusangkar

Determining the route of the tourism bus to visit some tourism object not only to minimaze the distance, but also there are another purpose, such as minimization cost, maximizing tourism object, minimizing trip time, and maximizing the visit time in the tourism object. But, determining the route we should notice the open hours of the tourism object and operational hours for the tourism bus. The matter of determining the rute that involve some purpuse and considering the visit hours in the math is known as multi-objective vehicle routing problem with times windows. Goal programming is one of technique to solve the model with the multi-objective function and assist to find an optimal solution form several an compatible purpose. The purpose of goal programming is to minimize the total of deviation of all the purpose. Based on the case, goal programming will be apply the multi-objective vehicle routing problem with times windows which has been finised with goal programming approachment. Then, from the model it applied for the trip route of tourism agen Purpledia Pictures T&T in Bali island. The completion with LINGO, give an optimal route solution of the tourism bus, as many as three route with total cost IDR 1.269.700,00, as 25 tourism object which has been visited from 49 tourism place, the tour time 14.1 hours in 3 days and the total time to visited of tourism object 27 hours in 3 days.

BIOSORPSI ION LOGAM Cd (II) DARI LARUTAN MENGGUNAKAN KULIT BUAH PINANG Lazulva, Lazulva; Utami, Lisa
Sainstek : Jurnal Sains dan Teknologi Vol 9, No 1 (2017)
Publisher : IAIN Batusangkar

The ability of betel nut skin as a biosorbent at a low cost to remove the metal ions Cd (II) from the solution has been investigated. This study shows the effect of pH of the solution, contact time and initial concentration on the absorption capacity of betel nut skin. The result of measurement of metal ion content of Cd (II) using AAS shows that optimum pH of biosorption is 6 and the optimum contact time is 15 minutes, while the optimum initial concentration of biosorption is 50 ppm. Based on FTIR spectroscopic spectra, it can be concluded that the functional groups which act as binding metal ions Cd (II) by betel nut skin as biosorbent are amine function group (N-H), alcohol (O-H) and carbonyl (C = O). The result of the langmuir isotherm obtained by the price of Q (maximum absorption) for metal Cd is 1.14 mg / g.

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Marjoni Imamora

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Fakultas Tarbiyah dan Ilmu Keguruan IAIN Batusangkar Jl. Sudirman No. 137 Kuburajo Lima Kaum Batusangkar, Sumatera Barat. 27213

Location
Kab. tanah datar,

Sumatera barat

INDONESIA

Abstract

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Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Marjoni Imamora

Contact Email -

Phone +6282169719397

Journal Mail Official sainstek@iainbatusangkar.ac.id

Editorial Address Fakultas Tarbiyah dan Ilmu Keguruan IAIN Batusangkar Jl. Sudirman No. 137 Kuburajo Lima Kaum Batusangkar, Sumatera Barat. 27213

Location Kab. tanah datar, Sumatera barat INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
Marjoni Imamora

Contact Email
-

Phone
+6282169719397

Journal Mail Official
sainstek@iainbatusangkar.ac.id

Editorial Address
Fakultas Tarbiyah dan Ilmu Keguruan IAIN Batusangkar Jl. Sudirman No. 137 Kuburajo Lima Kaum Batusangkar, Sumatera Barat. 27213

Location
Kab. tanah datar,

Sumatera barat

INDONESIA