Cases of death due to COVID-19 have also increased the number of children who have become orphans. Thus, these children are now in need of social welfare service (PPKS). Children who have lost their parents due to COVID-19 in Pekanbaru City are the highest compared to all regencies/cities in Riau Province, these children belong to a vulnerable group so that inclusiveness (partiality) is ne…
ABSTRACT Stow net is a static catching tool and operated around the beach with the target species of catch are shrimp and small fish. The study aims to find out the composition of the cleaner catch during the day and night and to find out the comparison of the catch by weight and tail number. The method used in this study is the survey method, researchers go down directly to the field to retri…
Abstract Determining the composition of gill net catches during the day and night in the waters of Bantan Village aims to determine the composition of gill net catches in terms of weight (kg), number of individuals (tails) and types of fish at the time of catching. The gill fishing area has a distance from the fishing base to the fishing ground ± 1 km. There are 9 types of gill net catches, n…
ABSTRACT Fish consumption every year will increase along with the increasing number of people. The need for fish is very high because fish contains a lot of protein which is good for the human body, this is a factor so that interest in fish consumption is very high. To obtain fish in sufficient quantities requires fishing gear that can exploit good and environmentally friendly fish resources. S…
ABSTRACK This research was conducted from July to September 2021 for 42 days at the Hall of Brackish Water Fish Seed, Meranti Islands Regency, Riau. This study aims to determine the best dose for addition of probiotics to the maintenance media for the growth rate and survival of seabass. This study used completely randomized design (CRD) of one factor consisting of five levels of treatment and…
ABSTRACT During this pandemic, shopping centers are one of the places that have the potential to gather crowds of people, with large crowds of people will cause an increase in the spread of the covid-19 virus. Fulfillment of basic needs in markets or shopping centers will continue. Therefore, the government has emphasized to follow health protocols in all activities outside the home, be it in …
vii SUMMARY Dyes are extensively utilized throughout a number of industrial, including textiles, rubber, paper, printing and plastics. Most of the dye turns water color at very low quantities, causing severe ecological issue, the extinction aquatic life and harm to human health. The most widely use dye is methylene blue. For these reasons it is essential to remove methylene blue from wastewat…
vi SUMMARY Composite is a material wich is produced from two or more constituent material to form a new materials. Composite materials prepared by mixing matrix and fillers. The composite material used in this study consists of SIR 20 natural rubber as a matrix with the addition of 5% avocado seed activated charcoal and cast sand as a filler. Composites are made with a variety of fillers, con…
vi SUMMARY Polyethylene terephthalate (PET) is a plastic polymer from the polyester group. PET is a polymer composed of terephthalate acid and ethylene glycol as monomers. The PET biodegradation test has been done using isolated thermophilic bacteria from Padang Ganting hot spring called Pseudomonas sp. genus. LBKURCC173, LBKURCC175 and Thermus sp. genus. LBKURCC174, LBKURCC176, LBKURCC177, L…
Abstract Maggot (Hermetia illucens) can be used as fish feed and has a fairly high protein. This study aims to determine the effect of using silage maggot leaf flour in feed on the growth and feed efficiency of siamese catfish (Pangasius hypohpthalmus). This research was conducted for 56 days at the fish nutrition laboratory and the Fisheries and Marine Science, University of Riau. This study …
ABSTRACT Honey not only contains sweeteners or food flavorings, but honey also contains very essential nutrients. Honey is produced by honey bees by utilizing plant flowers. In this study, the decrease in water content in honey used whiting as the adsorbent. This study aims to determine the ability of whiting as an adsorbent in reducing the water content of honey bee silang and determine the q…
ABSTRACT Eucalyptus leaf is one of the essential oil-producing ingredients. The purpose of this study was to study the effect of sample conditions (fresh leaves and dried leaves), whole leaves and chopped leaves, as well as the extraction time on the yield of essential oils extracted from hybrid eucalyptus leaves using the microwave hydrodistillation and gravity (MHG) method. The essential oil…
ABSTRACT Honey not only contains sweeteners or food flavorings, but honey also contains very essential nutrients. Honey is produced by honey bees by utilizing plant flowers. In this study, the decrease in water content in honey used whiting as the adsorbent. This study aims to determine the ability of whiting as an adsorbent in reducing the water content of honey bee silang and determine the q…
ABSTRACT Bengkalis Island has a very large area of peat, 66,429.92 hectares of peatland that has been damaged. With the large area of peatland that has been disturbed and the massive construction of drainage canals in the peat ecosystem, it has an impact on the drainage of peatlands, decreasing water storage capacity. Research at the Peat Hydrological Unit (KHG) of Bengkalis Island needs to be…
ABSTRACT Petroleum is the main source of energy and a source of foreign exchange for the country. However, Indonesia's oil reserves are limited, so alternative fuels are needed. Biodiesel is an alternative fuel to replace diesel which is produced from vegetable oil through a transesterification reaction process between vegetable oil, methanol and a catalyst. However, in its use in diesel engin…
ABSTRACT Along with the development of the times, the need for fuel oil is increasing. The development of research and use of diesel engines in industry will not stop just because of the depletion of fossil fuels. The search for alternative fuels as a substitute for diesel fuel continues to be carried out in addition to overcoming the problems of the global energy and environmental crisis …
Abstract Oil palm fronds are lignocellulosic biomass that has not been utilized optimally. Juice-free palm frond fractionation can convert the main components of biomass into valuable products, such as pulp. The purpose of this study was to study the effect of process conditions on the yield of pulp, cellulose and lignin contained in the pulp. The effect of process conditions was studied by Re…
ABSTRACT Isobutyl palmitate (C20H40O2) known as hexadecanoic acid 2-methyl propyl ester is an organic compound which at room temperature is a colorless liquid, soluble in alcohol and ether, but insoluble in water. Isobutyl Palmitate is used as plasticizers, namely materials that function to increase the workability and flexibility of plastics. Isobutyl palmitate is produced by reacting palmiti…
ABSTRACT Palm oil is Indonesia's mainstay commodity which plays an important role in the economic development of the Indonesian nation. One of the products produced from the oleochemical industry is fatty acid. Palmitic acid is one of the largest fatty acid fraction found in Crude Palm Oil (CPO). The process used is a hydrolysis process with raw materials of CPO (Crude Palm Oil) and water. The…
vi SUMMARY Composites contain more than one material element with different characteristics. The composite material consists of two phases, namely the matrix and the filler. In this study, the composites were prepared using natural rubber SIR 20 as a matrix and activated charcoal of candlenut shells activated by 5% KOH and cast sand as filler which were applied to peat water in Rimbo Panjang.…