ABSTRACT The sedimentation rate in a slurry is the speed at which solid particles settle out of the liquid due to the force of gravity. A dispersant is a dispersing agent used to ensure that the particles in the GCC slurry remain stable, do not clump together, and do not settle. This study aims to determine the effect of dispersant dosage on the sedimentation rate, viscosity, and solid con…
ABSTRACT The manufacturing process of Ground Calcium Carbonate (GCC) involves wet grinding which requires a certain energy known as Specific Grinding Energy (SGE). This energy is critical in achieving the desired particle size and has a direct impact on the quality of the final product as well as the efficiency of the energy used in the process. This study aims to analyze the effect of pow…
ABSTRACT The DA stage is an important stage in the process of increasing brightness because the DA stage is a delignification stage to damage and separate the remaining lignin structure in the pulp. This study aims to determine the effect of temperature and time on brightness, fiber morphology and tensile strength. In this study, the DA bleaching process was carried out using chlorine dioxide …
ABSTRACT Recausticizing is a process of chemical recovery plant that is tasked with converting green liquor into white liquor as the main product and lime mud as a by-product. Lime mud is one of the by-products of recycling in the pulp industry process produced from the recausticizing process which has a high CaCO3 content so that it can be used as the main material for the calcination process…
ABSTRACT The rotogravure printing technique is a direct printing technique. Printing techniques in deep printing or rotogravure include direct printing techniques, namely printing raw materials directly in contact with the gravure cylinder as an image carrier. During the production process, there are often production defects such as printing defects. The existence of printing defects in wrappi…
Narrow Barred Spanish Mackerel (Scomberomorus commersonii) is a high economic value fishery commodity in Indonesia, but its utilization is still limited to the meat, while the bones as waste have not been optimally utilized. Fish bones contain high calcium and protein so they have the potential to be used as nutritious food ingredients, one of which is as raw material for crackers. This study a…
ABSTRACT Wastewater treatment is an important part in supporting the sustainability of pulp and paper industry operations. One of the stages used to improve wastewater quality is the coagulation-flocculation process in tertiary treatment. This study aims to evaluate and compare the performance of two types of coagulants, namely aluminum sulfate (alum) and polyaluminium chloride (PAC), which ar…
Pasar Lama Pangkalan Kerinci is the main smoked fish trading center in Pelalawan Regency, Riau. The marketed smoked fish consists of various species such as catfish, baung, and catfish originating from Kampar, Langgam, and Kerinci areas. These products are traditionally processed with limited sanitation, potentially leading to quality degradation and microbiological contamination during storage…
This study aims to determine the effect of tilapia bone meal fortification on the quality of crispy brownies and to determine the concentration of tilapia bone meal on the quality of cispy brownies. The method used in this research is an experiment with anon-factorial completerandomized design with fourtreatment levels, namely without tilapia bone meal fortification 0% (B0), tilapia bone meal f…
ABSTRACT This research aims to design a marketing strategy for green bean products of lasi coffee in the Selaras Alam Community, West Sumatra. Method used is descriptive qualitative. Data collection method used primary data and secondary data. Sampling technique used was purposive sampling with a total of three respondents. Analysis used is identified of internal and external factors, assessme…
ABSTRACT Isotonic drinks are carbonated or non-carbonated soft drinks that contain sugar, nitric acid, and minerals to improve fitness. Isotonic drinks can be made from young coconut water by adding fruit juice to complement the nutritional content of isotonic drinks. One of the fruits that can be added is kelubi fruit. Kelubi is a fruit of the Araceae family that has complete nutritional …
ABSTRACT Dadih is a fermented product made from buffalo milk involving lactic acid bacteria as probiotic agents in bamboo tubes. The effectiveness of probiotics is seen from the hydrophobicity of the cell surface, autoaggregation, and coaggregation. The purpose of this study was to determine the ability of cell surface hydrophobicity, autoaggregation, and coaggregation of Lactiplantibacill…
ABSTRACT Papaya fruit contains beta-carotene which can function as a natural dye in marshmallow, replacing synthetic dyes. Making marshmallow also requires gelling agents, such as gelatin, to create a chewy texture, which is supported by their ability to trap air. Water is essential for dissolving ingredients and stabilizing the structure therefore, the ratio of gelatin to water is crucial in …
ABSTRACT Nuggets are high-protein fast food products that are popular among consumers. However, most nuggets available on the market have low dietary fiber content. This study aimed to determine the best formulation based on the ratio of catfish to kepok banana peel flour in nugget production, focusing on fiber content and compliance with the Indonesian National Standard (SNI 7758-2013) fo…
ABSTRACT Kombucha tea is a fermented drink that has a sour and slightly sweet taste. Gambir leaf tea has high antioxidants that can be used as a basic ingredient for making kombucha tea. Gambir leaf tea has a bitter and astringent taste, therefore efforts are needed to reduce this by fermenting it and adding honey as a source of sugar. This study aims to determine the appropriate concentration …
ABSTRACT Shallot (Allium ascalonicum L.) is a medicinal and spice plant with high economic value and notable health benefits. Efforts to increase its production can be pursued by utilizing the vast acidic drylands available in Riau Province, despite the physical and chemical limitations these lands present. The application of soil amendments such as rice husk charcoal can enhance soil fert…
ABSTRACT Sweet corn (Zea mays saccharata sturt.) is a popular horticultural crop among the public due to its sweet taste and significant role in fulfilling nutritional needs. The increasing demand for sweet corn, driven by Indonesia’s growing population, necessitates efforts to boost its production. One approach is through fertilization, which aims to enhance soil fertility and nutrient avai…
ABSTRACT Shallot (Allium ascalonicum L.) is a horticultural crop widely used as a cooking ingredient and in traditional medicine. In Riau Province, the increasing population has led to a higher demand for shallots. One way to meet this demand is by improving production through fertilization, using either organic or inorganic fertilizers. This study aimed to determine the interaction and th…
ABSTRACT Corn is a food crop that contains lots of carbohydrates, fat and high protein. The decline in corn plant productivity is caused by attacks by plant pests and one of them is the corn armyworm. S. frugiperda attacks parts of corn plants that are growing. The research was carried out experimentally, using a completely randomized design (CRD), consisting of 5 treatments and 5 replications…
ABSTRACT The research aims to determine the interaction of providing sludge compost and NPK fertilizer, sludge compost factors and NPK fertilizer factors and to obtain the best dose for the growth and yield components of upland rice. This research was carried out experimentally using a factorial completely randomized design (CRD). The first factor is palm oil sludge compost fertilizer with 3 l…