PT AHP is a chemical industry with the main product of emulsion polymer. The problem faced is the inconsistent product quality, especially the GP 31XXC product. PT AHP must immediately take action to reduce problem products, and increase productivity. The purpose of this study was to identify the cause of the problem, provide suggestions for improvement, and find out the decline in the no-good GP 31XXC product after repairs were made. This study uses an experimental design method, with SPSS17.0 statistical analysis. The results of the application of the experimental design show that the cause of the problem with the GP 31XXC product is the technical production process, namely, the cooling temperature parameters, feeding starting temperature, and inappropriate observation time. Proposed improvements made are changes to standardization and validation of temperature and time parameters. The cooling temperature is to 95°C – 96°C, the starting temperature is feeding on 80°C to 89°C, and the observation time is from 90 minutes – 120 minutes to a minimum of 93 minutes. The decline in the GP 31XXC no-good product after repairs were made was 90%, from 10 batches to 1 batch.

Keywords: chemical industry, emulsion polymer, quality, experimental design.

Nitrocellulose as the basic component of a single base propellant type for rocket booster fuel has been developing for a long time, since 2010 the process of making nitrocellulose from pineapple leaves, palm frond, cotton fibers, and coconut fibers. Based on this, this research was directed to synthesize nitrocellulose from ramie (Boehmeria nivea L. Gaudich) fiber due to its cellulose content being relatively very high at around 97% through nitration reaction. The process of nitrocellulose synthesis was carried out in two stages. First, the process of separating cellulose from fiber, starting with the process of hydrolysis, delignin, and bleaching. Second, the reaction of nitration with nitric acid and sulfuric acid as a catalyst with temperature variation of 7oC, 12oC, 17oC, 22oC, and 27oC with nitration reaction time is 15-60 minutes. The final step is a analysis using the Fourier Transform InfraRed (FTIR) tool and analysis using the Kjeldahl method nitrogen content. The results showed that the highest absorption of Nitro (-NO2) groups at the temperature 7oC and the reaction time of 30 minutes with the percentage of Nitrogen in the cellulose is 10.791% N.

Keywords: ramie, cellulose, nitration, nitrocellulose

Poliprima Cipta Unggul is a company in manufacturing which is a plastic injection molding company with one of its superior products is G2. The purpose of this research is to optimize the production process and ordering raw materials. Minimizing excess stock of materials and protecting out-of-stock safety. The first thing to do this research is the stocktaking of all materials starting from post 1 to post 4. List all existing POs, Next is the formation of future state mapping in identifying the type of waste that occurs in the company, the main type of waste is the type of waste of overproduction, waste of inventory and waste of overprocessing.

Keywords: MRP (Material Requirement Planning), current state mapping, future state mapping, kaizen, BOM to Helmet, BOM vs PO, FIFO (First in First Out) process cycle efficiency, pull system, Stockopname

Aloe  vera  is  believed  to  be  able  to  moisturize  the  skin  and  refresh  the  skin,  for  that  many people use Aloe vera as a scrub or skin care mask. The scrub can gently remove dirt and dead skin  cells  and  refresh  the  skin  is  the  key  to  the  formation  of  collagen,  which  is  a  protein compound that plays a role in the formation of skin cells, and gives strength to the skin. This study  aimed  to  obtain  the  effect  of  adding  Aloe  vera  flour  on  the  organoleptic  properties  of the  cucumber  body  scrub  and  to  get  the  best  results  from  the  Aloe  vera  powder  body  scrub formula. The method used in this study is the variation of the concentration of the addition of Aloe vera flour, namely 0%, 2.5%, 5%, 7.5%, 10% and 12.5%. The ingredients used to make Aloe  vera  scrub  are  Aloe  vera  flour,  rice  flour,  cucumber  flour,  glycerin,  methyl  paraben, sodium  lauryl  sulfate,  triethanolamine,  stearic  acid,  propyl  paraben,  alpha  tocopherol  and propyl  ethylene  glycol.  The  tests  in  this  study  were  organoleptic  tests  (color,  aroma,  texture and  adhesion)  and  pH  tests.  This  study  obtained  the  results  of  color,  aroma,  texture  and adhesion at a concentration of 7.5% and a pH ranging  from 5.80-7.60 with a weight of Aloe vera flour of 3.75 grams and cucumber powder of 1.8 grams.

Keywords: Scrub, Bath Scrub, Aloe vera, Cucumber, Cucumber Flour

The  dissemination  of  sustainable  Integrated  Multi  Tropic  Aquaculture  (IMTA)  Sato  Umi  model within  coastal  area  of  Indonesia  has  been  applied  by  development  the  experimental  model  and socialization through workshop and training programs.  The result of preliminary experiment that conducted  in  2010  has  shown  the  best  performance  on  the  biomass  productivity  of  the  IMTA Sato Umi model using 4 (four) species cultivated organism (fish, shrimp, algae and green muscle) compare with using 1 (one) to 3 (three) species  model.  The similar performance also shown on the water quality and the environmental stability.  The application of sustainable IMTA Sato Umi model  currently  has  and  is  developing  from  the  western  (Sabang  Aceh)  to  eastern  part  (Raja Ampat-Papua) of Indonesia.  The model  has expanded  from the center of  first experiment in the northern coastal area of west Java to central Java  and Bantaeng  in the South Sulawesi of central Indonesia. In the next 5 years, Indonesia is developing the Techno Parks Program in some areas, in which aquaculture and fisheries activities development on the base of Sato Umi concept in the coastal  area  are  involves  in  this  program.  The  development  of  Techno  Parks  are  directed  as  a center application of technology to stimulate the economy in the regency, and a place of training, apprenticeship,  technology  dissemination  center,  and  center  business  advocacy  for  the  public. Hopefully the sustainable aquaculture  model on the  base of  Sato Umi concept that has a similar spirit with Techno Park can be applied to support the implementation of Techno Park program in Indonesia.

Keywords: Dissemination, sustainable IMTA, Sato Umi model, Productivity, Environment, Coastal area, Indonesia

Study analysis burden work physical and mental for employees mechanic at PT. Global Palm Universe addressed for knowing is operator job required repair or no, as well as for knowing amount employee optimal mechanics for workers and also for knowing is burden mental work on employees mechanic is have optimal mental load for worker as well as knowing is burden employee mental work mechanic moment before and after work is have difference or no . Based          on results study with Cardiovascular Load (CVL) method, found that all employee mechanic experience fatigue physical at the moment where do you work need repair work however nature no soon. So from that, proposed for company give training about use machines in accordance with useful procedure for repair machine factory moment machine currently in repair. Goal is so that the operator does not easy feel tired at the moment work. Temporary that, based on results the calculation of the sampling test is obtained amount optimal employees of 7 people. This means the operator must added 1 helper mechanic so that all employee have burden even work, and for calculation burden mental work using NASA – TLX method, the most dominant aspect moment before work are mental demand and own performance, namely  confidence mechanic will success at work. Temporary the most dominant aspect at the time measurement after work is mental demand and effort, i.e where mechanic feel that the work he  does need focus for solution as well as need effort high mental and physical work

Keywords: Workload Physical, Mental Workload, Cardiovascular Load (CVL), Sampling Test, NASA – TLX, Total Optimal Employees

Indonesia  is  the  largest  produced  tempe  country  in  the  world  and  the  largest  soybean market  in  Asia.  Tempe  is  in  demand  by  the  public,  besides  being  cheap,  tempe  also  has good nutritional  value, contain  by  highly  vegetables protein. The addition of citric acid  in the  tempe  soaking  process  can  affect  the  tempe  fermentation  time.  Previous  research shown that the optimal soaking time in the tempe production process using citric acid 10%. However,  residual  citric  acid  was  0.1-0.2%  (standard  WHO:  0.3%).  This  study  is continued research for search another agent to accelerate fermentation such as bean sprout extract.  Tempe  soaking  process  used  citric  acid  and  bean  sprout  extract  as  additives  that contained  many  minerals.  Sprout  extract  is  obtained  by  boiling  or  blending.  Soybean soaking  was  carried  out  for  2  hours  to  obtain  a  result  of  21.25  hours,  fermentation efficiency  55.73%  for  combination-B  and  23  hours  fermentation  efficiency  52.08%  for BSE-NB.  Test  the  citric  acid  content  in  tempe  by  using  the  HPLC  (High  Performance Liquid  Chromatography)  method  and  obtain  the  result  that the  residual  citric  acid  content in  tempe  is  0.03%  for  combination-B  and  0.11%  hours  for  combination-NB.  Moreover, organoleptics show combination-B preferred than conventional Tempe.

Keywords: Tempe, Fermentation, Bean Sprouts Extract, Citric Acid, HPLC

PT. Passion Abadi Korpora as one of the producers of the jewelry retail industry, every company must pay attention to the balance of the workload of its employees. PT. Passion Abadi Korpora has many departments in it, although it is not easy to do but the company must be able to balance the two burdens. One of the departments that also has a workload imbalance is the finishing production department. To measure the workload, you can use the NASA-TLX method on mental workloads, for physical workloads using the Work Sampling method which then produces the optimal amount of productivity. There are six indicators in the NASA-TLX method, namely mental needs, physical needs, time requirements, work performance, frustration levels, and physical and mental effort. In the finishing production department there are 20% for work performance indicators, 7% for time requirements indicators, 20% for physical and mental effort indicators, 20% for mental needs indicators, and 13% each for indicators of physical needs and frustration levels. Based on the calculation results, the highest productive working hours were obtained,  the first  being Nurman  with  146 hours/month, followed by Rahma Purnomo with 145 hours/month, and Dwi Rian S, Andri Andrianto with 144 hours/mont The results of these calculations can be caused by the heavy workload of operators who are rarely found unemployed when observing for 5 working days. There are 3 (three) factors that cause mental workload, namely lack of training and understanding of work for operators, poor time management and inadequate work environment. The most dominant thing felt by finishing operators on the production floor is the demands of work from a human point of view. Because the work demands given by the company are evenly distributed between new employees and old employees. For the old employees, it is suggested to use headphones so as not to disturb the concentration of the new  employees.  Furthermore, the proposed improvement that can be made by the company is to design a product, namely a box that can be used in finishing work so that the gold flakes that are filed or sanded do not scatter on the table and can be collected for smelting so that there is a retrun which can reduce the loss of grams of gold. The most dominant thing felt by finishing operators on the production floor is the demands of work from a human point of view. Because the work demands given by the company are evenly distributed between new employees and old employees. For the old employees, it is suggested to use headphones so as not to disturb the concentration of the new employees. Furthermore, the proposed improvement that can be made by the company is to design a product, namely a box that can be used in finishing work so that the gold flakes that  are filed or sanded do not scatter on the table and can be collected for smelting so that there is a retrun which can reduce the loss of grams of gold. The most dominant thing felt by finishing operators on the production floor is the demands of work from a human point of view. Because the work demands given by the company are evenly distributed between new employees and old employees. For the old employees, it is suggested to use headphones so as not to disturb the concentration of the new employees. Furthermore, the proposed improvement that can be made by the company is to design a product, namely a box that can be used in finishing work so that the gold flakes that are filed or sanded do not scatter on the table and can be collected for smelting so that there is a retrun which can reduce the loss of grams of gold. Because the work demands given  by the  company are  evenly distributed  between new employees and  old employees. For the old employees, it is suggested to use headphones so as not to disturb the concentration of the new employees. Furthermore, the proposed improvement that can be made by the company is to design a product, namely a box that can be used in finishing work so that gold flakes that are filed or sanded do not scatter on the table and can be collected for smelting so that there is a retrun which can reduce the loss of grams of gold. Because the work demands given by the company are evenly distributed between new employees and old employees. For the old employees, it is suggested to use headphones so as not to disturb the concentration of the new employees. Furthermore, the proposed improvement that can be made by the company is to design a product, namely a box that can be used in finishing work so that the gold flakes that are filed or sanded do not scatter on the table and can be collected for smelting so that there is a retrun which can reduce the loss of grams of gold.

Keywords: NASA – TLX, Sampling Test, Physical Workload, Mental Workload, Productivity.

Wearing mask is very essential in doing activities during COVID-19 pandemic. Many studies have revealed that wearing mask could prevent infection of COVID-19. However, single use face mask created new problem, which is discarded mask waste. This study aims to identify discarded mask quantity and public knowledge in mask waste management, particularly in Sumber Jaya Village, Bekasi District. The majority of resident in mentioned location are industrial and retail sector workers. The study was performed by distributing questionnaire concerning the  quantity  of  discarded  waste  daily,  mask  waste  disposal  method,  and knowledge of mask waste disposal. Selected respondents were workers who actively worked outside the house every day. Commonly used mask types were KN-95, KF 94, duckbill, medical mask, and fabric mask. Based on this study result, mask waste quantity based on the type were 0.16 kg/day for KN-95, 0.19 kg/day for KF94, 0.09 kg/day for duckbill waste, and 0.29 kg/day for 3-ply medical waste. Most of the respondents (92%) did not know that mask waste should be disposed in dedicated waste container. Majority of respondents (93%) have not known that mask waste  should  be  disinfected  prior  to  disposal.  Mask waste was commonly disposed of without being destroyed first. Considering that the quantity of mask waste is increasing and knowledge in mask waste management is still low, many efforts shall be conducted to prevent negative impact to the environment.

Keywords: Face mask, Waste, COVID-19, Management, Disposal

Avocado  leaves  (Persea  americana  mill)  contain  flavonoid  compounds  rich  in  antioxidants and  can  be  used  as  raw  materials  for  making  natural  antibacterial  hand  sanitizer.  This  study aims  to  extract the  content of  flavonoid  compounds  contained  in  avocado  leaves  and  get the best  yield  from  5  comparisons  of  materials  and  solvents  as  well  as  the  highest  flavonoid levels. The method used in this study was the extraction of maceration using ethanol solvents 96 % then made a comparison variation of materials and solvents (1:5, 1:10, 1:15, 1:20, 1:25 b/v) with a length of soaking of the material for 24 hours. The obtained maceration results are filtered  and  glued  with  rotary  vacuum  evaporator.  The  extract  is  then  analyzed  flavonoid levels  with  kuersetin  as  a  standard  comparison  that  has  been  known  with  certain  flavonoid content. In this  study  obtained  the  best  yield  on the  comparison  of  dried  avocado  leaves  and ethanol 1:25 which is 6,267 %. The highest total flavonoid content obtained in the comparison of  dried  avocado  leaves  and  ethanol  1:5  is  3.1724  mgQE/gram  extract  with  the  equation  y  = 0.07173x – 0.00213, and R2 = 0.99998.

Keywords : Avocado leaves, antioxidants, flavonoids, extraction, kuersetin

CV Mulya Jaya Abadi is engaged in the bag industry. In this study, the workload analysis of the cutting section is carried out to analyze the level of physical workload and mental workload and whether the workload needs to be improved. The method used in this study using the NASA-TLX method and sampling test. The NASA – TLX method is used to measure mental workload objectively, while the dimensions of mental workload on NASA- TLX are mental needs, physical needs, time requirements, performance, effort, and stress levels. Sampling test is a technique for conducting a large number of observations on work activities. Complaints for operators where the work is done standing up, feeling sluggish, sleepy when working not concentrating so that the operator experiences fatigue and results in a workload for the operator. Based on the results of the study using a sampling test where observations were made five working days, from the calculation of the uniformity test and the data adequacy test, the data was uniform and sufficient. The results of the average calculation that cutting operators are indicated in the category of productive workers with Gunawan percentage 88.44%, Segat 89.33%, Ariyadi 88.00%, and Parid 87.55%, the results of the physical workload for Gunawan operators get the results 128%, Segat operators 153%, Ariyadi operators 138%, and for Parid operators 136%. and for the calculation of workload using the NASA-TLX method, the most dominant aspect is the physical requirement of 26%, because of the physical activity required in the work, so that the operator experiences fatigue. For mental needs due to the operator in his work requires concentration.

Keywords: Physical Workload, Mental Workload, NASA – TLX, Sampling Test

The development of business in Indonesia in the field of services and products that are increasingly skyrocketing requires companies to be able to rack their brains to be able to survive and advance in the fierce competition. Based on data from the Ministry of Cooperatives and SMEs, the number of MSMEs in Indonesia reached 64.19 million units in 2021 and has contributed as much as 61.97% of GDP or IDR 8.6 trillion. The large number of MSMEs also indicates the importance of accessibility of people’s business credit (KUR) products, Jamkrindo is present as one of the SOEs providing KUR guarantees. As of March 2022, Jamkrindo KCK Jakarta is appointed to also produce KUR Guarantees like other branches with a target of IDR 160M per month. Strategic planning can help companies determine strategies and make decisions. This research uses swot and QSPM methods by analyzing the internal and external conditions of the company through the IFAS-EFAS approach. Based on the results of the IFAS-EFAS matrix analysis, an IFAS score = 7.86 and EFAS = 7.16  is obtained so that the company’s condition is in quadrant 1 which means it is in a favorable position because it has strength in seizing existing opportunities. Based on the SWOT analysis, four sets of alternative strategies were obtained. With QSPM Analysis, Jamkrindo KCK Jakarta can carry out the following SO strategies: improving service and distribution networks, improving the quality of Human Resources, continuing to improve and evaluate  service  quality  and  continuing  to  maintain  and  improve  good  relations  with partners.

Keywords: strategy, People’s Business Credit (KUR), IFAS-EFAS, SWOT, QSPM

Financial health measurement is very important to be carried out, including PT Bank BNI Persero Tbk as a banking institution. One of the indicators of financial health is the measurement of the level of financial risk The purpose of this research is to analysis the financial performance of PT. Bank BNI (persero) Tbk in 2017-2021, by using Altman z”-score method to see the financial risk possibility of the PT. Bank BNI itself. Data type used is the secondary data from annual report published. Based on the results of the analysis carried out on PT. Bank BNI (persero) Tbk data. From 2017 to 2021 using the modified z-score method, the z-score value obtained for 5 consecutive years is 9.595 for 2017, 8.331 for 2018, 8.744 for 2019, 8.111 for 2020, and 11.259 for 2021. It can be concluded that PT Bank.

Keywords: Altman Z Score, Financial Risk

This study aims to analyze the economic feasibility of MgSO₄ plant from saline water waste with a capacity of 20,000 tons/year. Saline water waste is obtained from processing iron ore using STAL (Step Temperature Acid Leach) technology with a waste TDS of 120,000 ppm. This MgSO₄ plant was built using 439,597.65 liters of saline water/hour which produces 2,577.89 kg/hour of MgSO₄ through 4 stages. These stages are filtration using a screen filter, then followed by ultrafiltration, then nanofiltration, evaporation, crystallization to obtain salt in the form of powder. From the calculation of the economic parameters using the fixed estimation method, the value and break event point of 38% for the first year and the Internal Rate of Return of 37.5% are an indication that this MgSO₄ plant is a feasible investment.

 Keywords: Magnesium Sulfat, Saline Water, Nanofiltrasi, Internal Rate of Return, Break Even Point

Quality improvement carried out at PT. Inspira Multi Karya on partition products is still not effective, as evidenced by the presence of defective products such as scratches, dents, cracks, and edge defects. Based on these problems, the authors are interested in analyzing the quality improvement of Office Partitions products using the Six Sigma method and improving processes with the DMAIC approach (Define, Measure, Analyze, Improve, Control) to reduce the level of product defects, as well as with the help of analytical tools in the form of Pareto Diagrams. , Fishbone Diagram, FMEA after doing all the analysis, the results obtained are the factors that cause defects in office partition products at PT. Inspira Multi Karya namely Human, Environment, and Method. The results of the calculation of the value of Defects Per Million Opportunity (DPMO) are used to determine the level of defects per million opportunities. From the calculation results obtained a sigma value of 3.0502 with an average value of Defect Per Million Opportunity (DPMO) of 61405 per one million opportunity, Defect per Opportunity (DPO) or the possibility of the Office Partition product experiencing defects to meet the company standards of PT. Inspira Multi Karya of 0.061405. Proposed improvements that need to be made to reduce the level of defects in Office Partition products are Making good and appropriate SOPs, Cartons for packing must be given Styrofoam, Cutting materials according to size standard dimensions, Checking raw materials before processing, Employees must work carefully and focus , Conduct training for the operator concerned.

Keywords: Six Sigma, DMAIC, Pareto Charts, Fishbone Diagrams, Defects Per Million Opportunity, Quality Control

Lead (Pb) is one of the toxic and dangerous metals if it accumulates in the body. It comes from industrial waste. The adsorption is one of the efficient methods for handling the impact of water pollution caused by lead waste. This
research utilizes durian peel as a raw material for making biosorbent for the removal of Pb in liquid waste. From its characteristics, durian peel can be used as a potential raw material in the manufacture of biosorbent due to the rich
in cellulose content of 43.72% which can be utilized as raw material of activated carbon (AC) for eliminating industrial wastewater containing Pb metal. The durian peel waste was converted to AC by chemical activation. The
adsorption process was carried out using variations in biosorbent concentration (1; 1.5; 2; 2.5 and 3 grams in 50 ml sample) and contact time with Pb concentration was measured every 15 min for 75 min using Atomic Absorption  Spectrophotometry (AAS) equipment. Based on the Langmuir equation, the adsorption capacity and Langmuir coefficient were 43.860 mg/g and 0.318, respectively. The results of the Pb concentration analysis showed that the maximum elimination in Pb levels in industrial wastewater was obtained at the adsorbent amount of 3 grams with contact time for 60 minutes and resulting the adsorption efficiency of 99.48%.