ABSTRACT Paperboard is a thick and strong paper-based material that has 3 layers, generally used to make products such as packaging, boxes, and covers. In the process of making paperboard, coating is needed as a coating on the paperboard which will provide attractiveness and durability to the paperboard. Coating is a material used to improve the surface quality of paperboard. Quality improveme…
ABSTRACT Eucalyptus is one of the hardwood tree species commonly used in the pulp and paper industry. Pulp itself is wood pulp that is commonly used as raw material in papermaking, which is a thin material produced from the compression of fibres derived from pulp. There are various factors that affect the characteristics of paper, one of which is the wood harvesting age. In this study, the bul…
ABSTRACT This study aims to determine the effect of adding Gmelina as a chip raw material in a continuous digester on the efficiency of the oxygen delignification stage. The Gmelina ratio variations used range from 0% to 15%, with key parameters analyzed including kappa reduction, brightness, and the consumption of chemicals such as alkali charge and oxygen charge during the oxygen delignifica…
Paper grammature is defined as a measure of the weight of a sheet of paper, where paper weight is measured in grams per square meter (gsm) or g/m2. Grammature plays an important role in determining the characteristics of the paper sheet as well as the cutting quality during the cutting process. This final project aims to determine the effect of grammature on cutting quality on folio sheeter mac…
ABSTRACT Size press is a process to improve the quality of the surface properties of sheets by coating using surface sizing and starch. The amount of starch that sticks to the surface of the paper and penetrates into the paper is called size pick up. In this study, the author analyzes what parameters can affect the size pick up value and its relationship to size pick up, this study was conduct…
ABSTRACT The sizing process is an important stage in paper production that aims to improve the surface quality properties of paper, including water absorption, strength, and water resistance. The main chemicals used in the sizing process are native starch and the applicator rod as a means of applying starch to the sheet. These two things greatly affect the quality of the sheet during productio…
ABSTRACT Folio sheeter Machine is a machine that functions to change paper roll into sheets of folio-sized paper which are then stacked on a pallet. Folio paper products that have been arranged on the pallet can be directly packed for bulk orders or sent to the folio sheeter wrapping machine to be wrapped per ream into a ream wrap order. In the process of cutting folio paper, several defec…
The purpose of this study was to obtain an effective concentration of neem seed extract (Azadirachta indica A. Juss) to kill Spodoptera frugiperda J. E. Smith maize pests in the laboratory. This research was conducted experimentally using a completely randomized design (CRD) consisting of five treatments and four replications in order to obtain 20 experimental units. Parameters observed were in…
Study this aiming for determine proximate characteristics, amino acids (essential and non-essential), fatty acids and minerals in catfish meat (Clarias batrachus) from different habitats. The methods used in study this is method experiment comparison with a t-test design consists from 2 treatments that is compare between catfish river natural (LS) and catfish cultivation pool (LK). Research res…
ABSTRACT Pulp Dryer is one of the important business units of pulp and paper companies in pulp production that will produce slush pulp into pulp sheet. The main process in producing slush pulp into pulp sheet is the drying process. The drying process occurs in the dryer, where the dryer will require heat to dry the pulp sheet. Heat recovery system is one of the components in the drying process…
ABSTRACT Forming section is one of the key stages in the papermaking process, where fiber sheets begin to form from a mixture of pulp and water. This stage determines the initial characteristics of the paper sheet, including fiber distribution and Dryness. In the papermaking process, the level of Dryness in the forming section is one of the important parameters that affect process efficiency a…
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 Pineapple peel extract and citronella contain active compounds that have antibacterial properties that can inhibit or kill Staphylococcus aureus and Escherichia coli in hand sanitizers. This study aims to determine the antibacterial activity of hand sanitizer from pineapple peel and citronella extracts against Staphylococcus aureus and Escherichia coli. The research was carried out ex…
ABSTRACT The aims of this research were to study the effect of breadfruit starch coating on barangan banana during storage and to obtain the appropriate breadfruit starch concentration to extend the shelf life of barangan banana. The research was conducted experimentally using a completely randomized design method with treatments OF breadfruit starch concentration: control, 1%, 3%, 5%, and 7%.…
ABSTRACT This study aimed to evaluate the effect of the addition of biang fish (Ilisha elongata) flour on the organoleptic quality and nutritional content of instant noodles. Biang fish flour, which is rich in protein and minerals, was used to increase the nutritional value of instant noodles. The method used was an experimental design with a completely randomized non-factorial approach, w…
ABSTRACT The need for soybeans in Indonesia continues to increase, but this is not accompanied by an increase in soybean production. One of the efforts to increase soybean production is by expanding the planting area by providing mycorrhiza. Another factor that needs to be considered in the growth of soybean plants is the provision of phosphorus fertilizer. This study aims to determine the eff…
ABSTRACT Shallot (Allium ascalonicum L.) is a horticultural commodity that is widely consumed by the Indonesian people as a mixture of spices and medicines. Onion production in Riau fluctuates from year to year so it is necessary to develop cultivation techniques by combining the use of organic fertilizers with inorganic fertilizers. The source of organic fertilizer material can be composted e…
ABSTRACT The development of shallot plants in Riau Province is one of the efforts to increase regional agricultural productivity. Despite various efforts, shallot productivity in Riau Province is still relatively low. One of the main obstacles faced by farmers is the attack of fusarium wilt disease, which causes significant damage to plants and reduces yields. Fusarium wilt disease is caused b…
ABSTRACT Rice (Oryza sativa L.) is the primary staple food for most Indonesians, but its productivity in Riau Province declined from 4,1 tons.ha-1 in 2022 to 3,96 tons.ha-1 in 2023. One strategy to improve rice yields is enhancing soil fertility through the application of organic and inorganic fertilizers, such as bokashi and NPK. Bokashi improves soil microbial activity and nutrient availabil…
ABSTRACT Herbal tea is a functional drink made from processed tea from a mixture of dried herbs that have benefits for the body. This study aimed to obtain the selected ratio of corn silk and Citronella to the quality characteristics of herbal tea in accordance with SNI 3836:2013. The research was conducted experimentally using a completely randomized design (CRD) with four treatments and …