scholarly journals Monitoring Kekenyalan Tahu Kedelai dengan Sensor Kapasitif Menggunakan Mikrokontroller Berbasis Android

2021 ◽  
Vol 2 (1) ◽  
pp. 35-42
Author(s):  
Rizki Putri Nur Laili ◽  
Farida Arinie Soelistianto Arinie Soelistianto ◽  
Nanak Zakaria ◽  
Nurul Hidayati
Keyword(s):  
Storage Temperature ◽  
Ph Value ◽  
Ph Sensor ◽  
Capacitive Sensor ◽  
Test Results ◽  
Quality Of Data ◽  
Metal Plates ◽  
Ph Level ◽  
Output Information

Tofu has the best quality vegetable protein because it has the most complete amino acid composition and is believed to have high digestibility (85% -98%). According to SNI 01-3142-1998 and SII No. 0270-1990 testing criteria for soy tofu based on smell, taste, color, appearance, or texture. Tofu soybeans are prone to physical or texture damage due to factors such as inappropriate pH levels and insufficient storage which results in damaged tofu. Therefore in this study, it is proposed to determine the elasticity of soy tofu with the parameters tested are the pH level in the manufacture of soy tofu, the storage temperature, and the capacitance value to see how thick the tofu is with a capacitive sensor using the capacitor principle. Where the parallel plate capacitor is a capacitor consisting of two parallel metal plates. The test results of all sensors are sent to the database and will be displayed on the page on the Android application which will provide real-time sensor output information to the user. Based on the results of testing on this system using a pH sensor, the pH value is around 3-4 which indicates that the pH level used is very good for use in tofu processing, at pH 4.56 with storage at 29 ° C the highest elastic capacitance value is 3.58.  In testing data delivery, the throughput value is 4336,217 b / s and the smallest delay value is 0.017ms because the smaller the delay value, the better the quality of data transmission because there will be no delay in sending data.

scholarly journals The effect of rice types on chao properties during fermentation

2021 ◽  
pp. 83-90
Author(s):  
Meysi Azkiyah ◽  
Amran Laga ◽  
Meta Mahendradatta ◽  
Riku Shimomura
Keyword(s):  
Lactic Acid ◽  
Ph Value ◽  
Average Score ◽  
Test Results ◽  
Red Rice ◽  
Processing Technologies ◽  
Fermented Fish ◽  
White Rice ◽  
Side Dish

Chao is a typical Indonesian dish from Pangkep Regency that is relatively unknown to the general public. Chao is made from fermented fish, which is subsequently fermented with rice. Chao has the properties of pasta-like, light-brown color, unique flavor, slightly acidic and salty taste. Pangkep communities typically use chao as a seasoning, condiment ingredient, or as a side dish. Due to the product's attractive features, which resemble stale food, make it less appealing to consumers. It necessitates innovation and processing technologies in order to improve the quality of Chao products. This research this study aimed to find out the effect of rice variations including white rice, red rice and black rice on the characteristics of Shrimp Chao during fermentation. The testing parameters in this study were total Lactic Acid Bacteria (LAB), total lactic acid, pH, and organoleptic. The highest LAB growth was found in the red rice that is 7.67 log cfu/g with the lowest pH value of 6.02 and the highest lactic acid content (1.8%). The best organoleptic test results own by white rice-based shrimp chao with preference average score of 3.85 and red rice 3.78 which imply “like” in organoleptic scale scoring.

scholarly journals SISTEM KENDALI KEKERUHAN DAN pH AIR KOLAM BUDIDAYA IKAN NILA

ELKHA ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 99
Author(s):  
Ali Basrah Pulungan ◽  
Aditya Manggala Putra ◽  
Hamdani Hamdani ◽  
Hastuti Hastuti
Keyword(s):  
Ph Sensor ◽  
Fish Growth ◽  
Fish Pond ◽  
Fish Ponds ◽  
Test Results ◽  
Detection Error ◽  
Water Turbidity ◽  
Turbidity Level ◽  
To Come ◽  
Ph Level

This study aims to make a tool that can monitor the condition of the pH level and water turbidity in fish ponds so that fish growth can be maximized. This fish pond has a control system that can be controlled automatically. The purpose of using this control is to get maximum results and to save water use in fish ponds This tool has two sensors consisting of a TDS-10 sensor which functions to detect the turbidity level of water in fish ponds and a pH sensor which functions to detect the pH level of the water in the fish pond. Comparison with previous research, the application of fish ponds with a size of 3 x 4 meters so that observations about how the tools work and the success rate of the tools can be observed more intensively. In addition, the ESP8266 wifi module is supported as a collaboration monitoring center without the need to come to the location directly Based on the test results of the TDS-10 sensor and pH sensor that have been carried out in the fish pond, the test results show good performance with the proportion of detection error of the TDS-10 sensor (4.8 NTU) to the set point (5 NTU) is 4%.

scholarly journals Synerisis and Cycling Test the Sendok Leaf Extract Gel (Plantago Mayor L.) with Optimization of Variations of Gelling Agent Carbomer 940 Concentration

2021 ◽  
Vol 6 (12) ◽  
pp. 908-910
Author(s):  
A L Yusuf ◽  
D Nugraha
Keyword(s):  
Experimental Method ◽  
Extraction Method ◽  
Leaf Extract ◽  
Storage Temperature ◽  
Gelling Agent ◽  
Plantago Major ◽  
Test Results ◽  
Cycling Test ◽  
Carbomer 940

The purpose of this study was to determine the effect of the concentration of the gelling agent Carbomer 940 on the gel of daun Leaf Extract (Plantago major L.). The method used is the experimental method. The extraction method used is maceration with 96% alcohol. The design in this study is the manufacture of a gel formulation of sendok Leaf extract (Plantago major L.) with the concentration of the gelling agent Carbomer 940 and the syneresis test. Syneresis test results show that all formulas do not occur syneresis. The results of the cycling test showed that the sendok Leaf (Plantago major L.) extract gel was not affected by storage temperature. The conclusion of this study shows the effect of variations in the concentration of the gelling agent Carbomer 940 on the quality of gel.

scholarly journals "Base Genep" Instant Spices Quality For Sale In East Denpasar

2020 ◽  
Vol 4 (2) ◽  
pp. 142-150
Author(s):  
Sofia nggoweng ◽  
Ni Made Ayu Suardani singapurwa ◽  
I Nyoman Rudianta
Keyword(s):  
Escherichia Coli ◽  
Moisture Content ◽  
Water Content ◽  
Ph Value ◽  
Descriptive Study ◽  
Experimental Methods ◽  
Plate Count ◽  
Test Results ◽  
Total Plate Count

Instant spices is a mixture of several spices that are young to be found in the market at an affordable price, and are usually used immediately as a cooking spice for certain foods. This study aims to determine the quality of the "Base Genep" instant spices sold in the East Denpasar Market. This research is a descriptive study using survey and experimental methods in the laboratory. The number of samples to be studied was 44 samples from 81 populations. The variables in the study were moisture content, pH, Escherichia coli, Total Plate Count (TPC) and mold. The results showed that from 44 samples of "Basa Genep" instant seasoning water content test results obtained were 21.62% - 23.707%, while the pH value of 44 samples of "Basa Genep" instant spice was obtained between 2.2-2.5 so that it meets the requirements.

scholarly journals Rancang Bangun Alat Pendeteksi Kelayakan Air Menggunakan Sensor PH

2019 ◽  
Vol 4 (1) ◽  
pp. 127
Author(s):  
Fitri Ariska ◽  
Irawan Hadi ◽  
Lindawati Lindawati
Keyword(s):  
Air Quality ◽  
Ph Value ◽  
Liquid Crystal Display ◽  
Ph Sensor ◽  
Measuring Device ◽  
Measurement Results ◽  
Turbidity Level ◽  
The Republic ◽  
The Government ◽  
Ph Level

One parameter of air quality is the level of turbidity and acidity. For most people, air quality is considered insignificant because it is inappropriate for aesthetics. Good water to be issued according to regulations issued by the government through the Minister of Health of the Republic of Indonesia has a pH value of 6.5 - 8.5 and the maximum turbidity level is 5 NTU (Nephelometric Turbidity Unit). Therefore the author makes a measuring device for acidity in water to facilitate the use of water that will be used by the community. Processing the measurement results is carried out by a pH sensor which will be processed by the Arduino Uno Microcontroller and produced with output via LCD (Liquid Crystal Display). In this test, the author uses several air samples that have been determined by the government, namely pH 4, pH 7 and pH 10. And from several other samples using water that is reasonably suitable for consumption with a pH level of 6.5 and above and can be used as Neutral.

Design Concept of Two Tank Reservoirs to Maintain pH Value for Tiger Prawn

2014 ◽  
Vol 660 ◽  
pp. 851-856
Author(s):  
Badrul Aisham Md Zain ◽  
Muhammad Farhan Khasim ◽  
Salihatun Md Salleh ◽  
Md Saidin Wahab
Keyword(s):  
Control System ◽  
Ph Value ◽  
Ph Sensor ◽  
Monitoring And Control ◽  
Shrimp Culture ◽  
Water Storage Tank ◽  
Slaked Lime ◽  
Tiger Prawn ◽  
Water Ph ◽  
Ph Level

Shrimp culture is the fastest growing sector of the aquaculture industry in Malaysia. In culturing tiger prawn, the pH level needed for water is around 7.0-8.5. Currently, prawn farmer in Malaysia still using a manual method to control the water pH level by adding chemical (Lime), in which, the process required constant monitoring and control by labor. Since the prawns are so sensitive on pH level, an automatic pH control system is required to maintain the water pH automatically and precisely. This research was conducted to design a system that can control and provide feedback on the changes of pH level and been implemented at the reservoir tank that can act as water storage tank and prawn pond. Control system and pH sensor are the important components in controlling the pH level. Input from pH sensor was processed by controller. Moreover, after an error is detected by controller, the correction will be delivered to the system as a feedback process. Nitric acid with concentration of 0.001M was added to 25 liter water in tank 1 so that the pH level is decreased to pH 3.00. Different concentrations were used for slaked lime; 0.5M, 0.4M. 0.3M, 0.2M and 0.1M, to increase the pH from acid to slightly alkaline in the range of pH value 7.00-8.50. Slaked lime was pumped to Tank by water pump and it will stop if the pH level reaches the setting level. The time for the system to recover from pH 3.00 to 7.00-8.50 was recorded. The results shows that slaked lime with the concentration 0.5M has the fastest recover time which was 29s follow by 0.4M in 69s, 0.3M in 92s, 0.2M in 151s and 0.1M in 252s, respectively.

scholarly journals Improving the Quality of Data Exchange Formats in the U.S. National Tuberculosis Surveillance System

2018 ◽  
Vol 10 (1) ◽  
Author(s):  
Wilfred Bonney ◽  
Sandy F Price ◽  
Roque Miramontes
Keyword(s):  
Public Health ◽  
Surveillance System ◽  
Surveillance Systems ◽  
Test Results ◽  
Snomed Ct ◽  
Quality Of Data ◽  
High Quality ◽  
Laboratory Test Results ◽  
National Tuberculosis

Objective: The objective of this presentation is to use a congruence of standardization protocols to effectively ensure that the quality of the data elements and exchange formats within the NTSS are optimal for users of the system.Introduction: Disease surveillance systems remain the best quality systems to rely on when standardized surveillance systems provide the best data to understand disease occurrence and trends. The United States National Tuberculosis Surveillance System (NTSS) contains reported tuberculosis (TB) cases provided by all 50 states, the District of Columbia (DC), New York City, Puerto Rico, and other U.S.-affiliated jurisdictions in the Pacific Ocean and Caribbean Sea [1]. However, the NTSS currently captures phenotypic drug susceptibility testing (DST) data and does not have the ability to collect the rapid molecular DST data generated by platforms such as Cepheid GeneXpert MTB/RIF, Hain MTBDRplus and MTBDRsl, Pyrosequencing, and Whole Genome Sequencing [2-6]. Moreover, the information exchanges within the NTSS (represented in HL7 v2.5.1 [7]) are missing critical segments for appropriately representing laboratory test results and data on microbiological specimens.Methods: The application of the standardization protocols involves: (a) the revision of the current Report of Verified Case of Tuberculosis (RCVT) form to include the collection of molecular DST data; (b) the enhancement of the TB Case Notification Message Mapping Guide (MMG) v2.03 [8] to include segments for appropriately reporting laboratory test results (i.e., using Logical Observation Identifiers Names and Codes (LOINC) as a recommended vocabulary) and microbiology related test results (i.e., using Systematized Nomenclature of Medicine -- Clinical Terms (SNOMED CT) as a recommended vocabulary); and (c) the standardization of the laboratory testing results generated by the variety of molecular DST platforms, reported to TB health departments through electronic laboratory results (ELR), using those same standardized LOINC and SNOMED CT vocabularies in HL7 v2.5.1 [7].Results: The application of the standardization protocols would optimize early detection and reporting of rifampin-resistant TB cases; provide a high-quality data-driven decision-making process by public health administrators on TB cases; and generate high-quality datasets to enhance reporting or analyses of TB surveillance data and drug resistance.Conclusions: This study demonstrates that it is possible to apply standardized protocols to improve the quality of data, specifications and exchange formats within the NTSS, thereby streamlining the seamless exchange of TB incident cases in an integrated public health environment supporting TB surveillance, informatics, and translational research.

scholarly journals Galvanic pH sensor for continuous monitoring of soil parameters in agriculture

2021 ◽  
Vol 2140 (1) ◽  
pp. 012023
Author(s):  
M S Yuzhakov ◽  
D I Filchenko ◽  
A V Badin ◽  
A K Berzin
Keyword(s):  
Continuous Monitoring ◽  
Ph Sensor ◽  
Sensor Calibration ◽  
Soil Parameters ◽  
Test Results ◽  
Software Complex ◽  
Process Methodology ◽  
Ph Level ◽  
Physical And Chemical ◽  
Agriculture Development

Abstract The article discusses trends in agriculture development in digitalization direction, substantiates need for monitoring pH level throughout year. The main solutions existing on market at moment are given, as well as need to develop a pH sensor for USKD-Agro hardware and software complex. The article discusses in detail the ongoing physical and chemical processes, on them basis pH level is determined, circuitry solutions used, as well as pH sensor implementation. The article describes the sensor calibration process, methodology and test results.

The Electrical Signals Measurement for Silicon Nanowires pH Sensor

2015 ◽  
Vol 1109 ◽  
pp. 219-222
Author(s):  
M.N. Md Nuzaihan ◽  
U. Hashim ◽  
Mohd Khairuddin Md Arshad ◽  
A. Rahim Ruslinda ◽  
A.H. Azman
Keyword(s):  
Silicon Nanowires ◽  
Ph Value ◽  
Ph Sensor ◽  
Electrical Performance ◽  
Electrical Signals ◽  
Buffer Solutions ◽  
Source Current ◽  
Ph Buffer ◽  
Ph Level ◽  
Nanowires Array

In this work, we report the geometrical characteristics and the electrical performance of silicon nanowires array for pH level detection. The smallest silicon nanowires structure is 40 nm width and 400 μm length. The Silicon Nanowires Array is tested with pH buffer solutions of pH4, pH7 amd pH10. Direct current (DC) measurement is the most common method of detecting the electrical signals of silicon nanowires sensor. The results show that the IV characteristic is directly proportional and the pH sensitivity calculated from linear relation between the drain-source current vs the pH value was 1.4nA/pH. These results are important for future biosensing experiments and data analysis using Silicon Nanowires Array devices.

Carbon Dioxide Induced Corrosion of Carbon Steel X65 Exposed to Nitrite Aqueous Solutions

SPE Journal ◽  
2018 ◽  
Vol 24 (05) ◽  
pp. 2279-2291
Author(s):  
Silvia M. Vargas ◽  
Richard Woollam ◽  
William Durnie ◽  
Michael Hodges
Keyword(s):  
Carbon Dioxide ◽  
Carbon Steel ◽  
Corrosion Inhibitors ◽  
Produced Water ◽  
Ph Value ◽  
Oil Fields ◽  
Acid Solutions ◽  
Test Results ◽  
Ph Level ◽  
Carbon Dioxide Co2

Summary Nitrate used to control reservoir souring in oil fields contains nitrite impurities. Nitrite is a strong oxidizer, and when used in souring–treatment fluids, the flow path often includes carbon–steel piping. Vanadium, also an oxidizer, is at times found in oilfield–production streams that commingle with souring–treatment fluids. The interactions between nitrite and vanadium and their effects on carbon steel X65 corrosion were investigated. The effect of nitrite on corrosion was investigated using synthetic brine to simulate produced water [rich in carbon dioxide (CO2), pH value of approximately 5] and seawater (negligible CO2, pH value of approximately 7). Tests were conducted with carbon steel X65 exposed to synthetic brine at 25, 60, and 80°C using a rotating cylinder electrode (RCE). The test results demonstrate the following: The corrosivity of nitrite strongly depends on the pH level. Nitrite increases corrosion at pH of approximately 5 and is relatively benign at pH of approximately 7. Nitrite reduces to ammonium (thermodynamically stable in acid solutions), whereas vanadium(III) delays the formation of ammonium. Inhibited corrosion tests indicate that nitrite reduces the performance of the studied commercial corrosion inhibitors (CIs).

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