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Biopropal Industri
Published by Kementerian Perindustrian Republik Indonesia
ISSN : -     EISSN : -     DOI : -
Core Subject : Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Industrial & Manufacturing Engineering
Arjuna Subject : -
Articles 208 Documents
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Application of Calibration Curve, Accuracy and Precision Chart as Internal Quality Control at COD Testing in Wastewater Lusiana, Uray
Biopropal Industri Vol 3, No 1 (2012)
Publisher : Balai Riset dan Standardisasi Industri Pontianak

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Abstract

Quality assurance is one of the technical requirements that include in the quality management system based on SNI ISO/IEC 17025 : 2008. Quality assurance is all the process that planned and systematic activity that applied in analysis, so can give the confidence to the customer or data user. Quality assurance that is applied for COD testing in wastewater are calibration curve, accuracy and precision control chart. The purpose of calibration curve, accuracy and precision control chart applied was to control the data of COD testing so that guaranty the validity to report and to keep the consistence of testing result as statistic all the time. Calibration curve of COD testing have a coefficient correlation 0,99987. Accuracy control chart have limited line BTA = 104,95%, BPA = 102,97%, BIA = 100,98%, BTB = 93,03%, BPB = 95,02% and BIB = 97,0%. Accuracy data can be accepted if that data present between line of BPA and BPB (± 2 SD), data is warned if that data present between line BTA-BPA or BTB-BPB (± 2 SD and ± 3 SD), and data is outlier if that data present out of line BTA and BTB (± 3 SD). The precision data can accepted if that the RPD value is not more than 10 % of COD testing result.
Debittering of Pontianak Orange Juice using Naringinase Enzyme Salahudin, Farid
Biopropal Industri Vol 1, No 1 (2010)
Publisher : Balai Riset dan Standardisasi Industri Pontianak

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Abstract

The goal of this research is debittering of orange juices with enzimatic process. Naringinase enzim is produced with Penicillium decumbens. The research metode is complete random design with two variabel. The first variabel is concentration of enzim : 0,0; 200; 400 ppm and the second variabel is time of incubation : 1, 2 and 3 hours. The product of this research is tested ascorbic acid, Total Plate Count and organoleptic test. The result showed concentration of naringinase enzim 400 ppm and incubation 3 hours can eliminated the after taste of orangge juice without reduce the ascorbic acid and colour of orange juice.
Testing Methods Validation of Copper in Bottled Drinking Water Using Flame Atomic Absorption Spectrophotometry Winata, Ari Surya
Biopropal Industri Vol 1, No 2 (2010)
Publisher : Balai Riset dan Standardisasi Industri Pontianak

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Abstract

Testing Laboratories of Institute for Industrial Research and Standardization (IIRS) Pontianak has used modified SNI 01-3554-2006 clause 2.22.2.1 in the testing of copper in bottled drinking water. Modification of the methods required validation. Validation aims to evaluate the suitability of such methods by means of laboratory study as standard testing methods in Various Commodity Testing Laboratory of IIRS Pontianak. Validation parameter conducted namely accuracy, precision, recovery, linearity methods, method detection limit, quantization limit, sensitivity, and measurement uncertainty. Based on the results of the validation methods and statistical data processing it was concluded that copper testing method in bottled drinking water using Flame Atomic Absorption Spectrophotometry (AAS) was compliant and suitable for use as standard testing methods in Various Commodity Testing Laboratory of IIRS Pontianak, indicated with good value of accuracy and precision, recovery 102.61%, method linearity correlation coefficient 0.9997, LOD 0.001 mg / L, LOQ 0.002 mg / L, sensitivity 0.0002 and uncertainty 0.0134 mg / L.
Reducing of Raffinose and Stachyose by Rhizopus oryzae and Lactobacillus plantarum at Soybean Fermentation Salahudin, Farid; Utomo, Pramono Putro
Biopropal Industri Vol 3, No 2 (2012)
Publisher : Balai Riset dan Standardisasi Industri Pontianak

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Abstract

Soybean (Glycine max) has high levels of protein. Furthermore, it also contains raffinose and stachyose, which in high amounts can lead to flatulence. It is known that Rhizopus oryzae could reduce the levels of stachyose and raffinose in soybean flour processing. Lactobacillus plantarum also could reduce stachyose levels on the processing of yoghurt from soybean.  Therefore the aim of this study was to determine the reduction of raffinose and stachyose on soybean fermentation using R. oryzae and L. plantarum isolates. The study was conducted by using combination of R. oryzae and L. plantarum isolates in soybean fermentation process in different length of time. The levels of raffinose and stachyose on fermented soybean products then tested. The results of this study showed that fermentation using R. oryzae single isolates for 2 days (R2L0) can produce soybean flour with low levels of raffinose and stachyose.  The products also have good color and smell.
Pretreatment Technologies of Lignocellulosic Materials in Bioethanol Production Process Hidayat, Mohamad Rusdi
Biopropal Industri Vol 4, No 1 (2013)
Publisher : Balai Riset dan Standardisasi Industri Pontianak

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Abstract

Bioethanol is one type of biofuel that developed significantly. The utilization of bioethanol is not only limited for fuel, but also could be used as material for various industries such as pharmaceuticals, cosmetics, and food. With wide utilization and relatively simple production technology has made bioethanol as the most favored biofuel currently. The use of lignocellulosic biomass, microalgae, seaweeds, even GMO (Genetically modified organisms) as substrates for bioethanol production has been widely tested. Differences in the materials eventually led to change in the production technology used. Pretreatment technology in the bioethanol production using lignocellulosic currently experiencing rapid development. It is a key process and crucial for the whole next steps. Based on the advantages and disadvantages from all methods, steam explotion and liquid hot water methods are the most promising  pretreatment technology available.
Characteristics of Tanning Leather Using Gambir on pH 4 and 8 Ardinal, Ardinal; Kasim, Anwar; Mutiar, Sri
Biopropal Industri Vol 4, No 2 (2013)
Publisher : Balai Riset dan Standardisasi Industri Pontianak

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Abstract

Tannery production process in Indonesia is still using chromium sulfate or mimosa in general. Gambier (Uncaria gambier Roxb.) extract could be used as material for tanners because it contains tannin. This study aimed to investigate the characteristics of tanned leather using gambier solution at pH 4 and 8. Standard tanning method was used which includes the processing of goat leather with salt, acid and then tanned with gambier extracts. Observation of tanned leather refers to the SNI-06-0463-1989-A and ISO 0234:2009. The results showed that characteristics of tanned leather with solution of gambier at pH 4 and 8 respectively i.e.: degrees of tanning 29.87% and 39.55%, tensile strength 279.94 kg/cm2 and 433.85 kg/cm2, leather conditions was limp, light gray colour and yellow, thickness of 0.12 mm and 0.11 mm, and density 0.74 g/cm3 and 0.74 g/cm3. Tanned leather from different pH conditions generally has the same characteristic and meet standards.
Zinc Adsorption Kinetics Using Pseudomonas as Biomass Hidayat, Hidayati; Suyono, Yoyon
Biopropal Industri Vol 5, No 1 (2014)
Publisher : Balai Riset dan Standardisasi Industri Pontianak

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Abstract

Zinc adsorption kinetics using Pseudomonas aeruginosa and Pseudomonas sp. was conducted to determine the ability of biomass to adsorb Zinc, and also to get the biosorption equilibrium and kinetics. Adsorption process conducted in this study was using batch method with variables on the amount of biomass (0.01 g, 0.02 g, 0.03 g, 0.04 g and 0.05 g), adsorption time (30, 60 and 120 min) and pH (4 and 6). Zinc metal biosorption kinetics following the pseudo-second-order equation. The highest correlation coefficient obtained on the condition of 0.04 g biomass for both pH 4 and pH 6 was 0.999. The best Zinc metal adsorption equilibrium models obtained at pH 4 with contact time at 60 minutes. This heavy metal adsorption equilibrium models comply the Freundlich isothermal with a correlation coefficient (R2) of 0.973.
Protection Ability Comparison of Several Mosquito Repellent Lotion Incorporated with Essential Oils of Mosquito Repellent Plants Utomo, Pramono Putro; Supriyatna, Nana
Biopropal Industri Vol 5, No 2 (2014)
Publisher : Balai Riset dan Standardisasi Industri Pontianak

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Abstract

Most mosquito repellent lotions available on the market today contain the active ingredient diethyltoluamide (DEET) which is very harmful to the skin. Natural mosquito repellent research using various essential oils (geranium oil, lemon oil, citronella oil and lavender oil) as the active ingredient and the addition of aloe vera gel as a moisturizer has been done on a laboratory scale. The purpose of this study was to compare the protection ability of the mosquito repellent plants in Indonesia. The results showed that geranium oil, lemongrass oil, lavender oil and lemon oil could act as mosquito repellent. Best lotion formula all containing 15% essential oils have the effectiveness above 50% until the sixth hour were geranium oil, citronella oil and lavender oil while lemon oil only giving effectiveness above 50% until the second hour.
Incorporation of Sunflower Oil and d-alpha-tocopherol Effect on Mechanical Properties and Permeability of Corn Starch Composite Edible Film Utomo, Pramono Putro; Salahudin, Farid
Biopropal Industri Vol 6, No 1 (2015)
Publisher : Balai Riset dan Standardisasi Industri Pontianak

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Abstract

Corn starch-based films are inherently brittle and lack the necessary mechanical integrity for conventional packaging. However, the incorporation of additives can potentially improve the mechanical properties and processability of starch films. In this work sunflower oil (SO) and vitamin E (d-alpha-tocopherol) at three levels each (0.05%, 0.1% and 0.15% (w/vtotal)) and (0.18%, 0.36% and 0.54% (w/vtotal)) were incorporated into corn starch films using a solution casting method to improve the mechanical and water vapour transmission rate (WVTR) properties. The addition of SO and vitamin E increased elongation at break of starch-based film while decreased tensile strength and WVTR of starch-based film. The best edible film obtained on addition of sunflower oil concentration of 0.15% and 0.54%, vitamin E with a value of 0.121 mm thickness, tensile strength of 65.38 kg/cm2, elongation at break 14.17% and WVTR 1144 g/m2 24 hours.
Adsorption of Lead Ion in Water Solutions using Kaolin-Surfactant Modified as Adsorben Putra, Alfian; Lestari, Novia; Meilina, Hesti
Biopropal Industri Vol 6, No 2 (2015)
Publisher : Balai Riset dan Standardisasi Industri Pontianak

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Abstract

Kaolin is one of the natural adsorbent materials. The adsorption ability of kaolin is still low and need to be modified with organic compounds such as surfactants. This research aimed to optimize the lead adsorption in a waste water using modified kaolin. This study modified kaolin adsorben with cationic surfactants which have activated on temperature 300oC during 3 hours in a furnace. The comparison of kaolin and surfactant were 1:0, 1:2, 1:3 and 2:1, respectively while adsorption time were 30, 60 and 90 minute. Lead was used as the artificial waste at a concentration of 100 ppm. The waste from municipal reservoir water storage of Lhokseumawe was used as a benchmark and application. The sample was analyzed by using AAS and characterized by FTIR. The modified adsorben kaolin-surfactan 1:2 gained the highest reduction of efficiency 78% while the lead ion of municipal waste decreased from 4.65 ppm into 2.67 ppm.

Page 6 of 21 | Total Record : 208

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