Ice cream is a milk product that is very popular with the public. This study aimed to determine the physical, chemical, microbiological, and sensory characteristics of functional ice cream with the addition of a probiotic starter at the right time. The research was carried out experimentally using a completely randomized design (RAL) with five treatments and four replications. The treatments in…
Live bacteria known as probiotics benefit people. Probiotics are able to regulate the intestinal mictobiota and prevent the growth of pathogenic bacteria. The study aimed to evaluate the properties of autoaggregation, coaggregation and cell surface hydrophobicity of Lactobacillus fermentum InaCC B1295 and Pediococcus pentosaceus strain 2397 encapsulated and without encapsulated with cellulose m…
Making fresh cow's milk yoghurt requires innovation in fermentation methods to produceamorepotent product. Theback sloppingfermentation method can be used to accelerate fermentation time, production of relevant metabolites and allow the formation of a more consistent product. This research aimed to evaluate the physical, chemical, and microbiological characteristics of fresh cow's milk yoghurt …
Acacia crassicarpa is a top priority plant in the development of industrial forest plantations, especially in Sumatra, because it meets the requirements as raw material for the pulp and paper industry. PT Sekato Pratama Makmur (SPM) is a company engaged in the cultivation of this crop. Constraints often encountered in the development of pulpwood plantations include pests, diseases and seedlings…
Kawasan perkotaan Indonesia rentan terhadap dampak perubahan iklim, di mana ancaman bencana hidrometeorologis seperti banjir merupakan ancaman bencana yang paling sering terjadi. Fenomena banjir Kota Pekanbaru merupakan permasalahan saling terkaitnya antara permasalahan sosial ekonomi dan lingkungan. Perubahan atau alih fungsi lahan di kawasan non terbangun menjadi kawasan permukiman atau perun…
Background and Objectives: The maximum possible use of natural resources requires control that is harmonious, harmonious and balanced because uncontrolled changes and disturbances to natural resources and the environment will cause problems for the human environment. This will cause pollution, poisoning, erosion, floods and drought so that it can ultimately affect human welfare. Pollution due t…
This research was conducted in November 2020 to December 2023. The objectives of the research were (1) identify and characterize Chlorella vulgaris isolated from the waters of the Rokan River Estuary, Bangko District, Rokan Hilir Regency, Riau Province, (2) evaluate the effect of different composition media on growth characteristics, proximate chemical composition, chlorophyll (a, b), total chl…
Peat forests are one of the natural resources that play an important role in life, especially in storing biodiversity. Therefore, the floristic composition and current conditions of peat forests need to be studied to become basic information in peatland management strategies. This study aims to: i) analyze the floristic composition in two forest conditions with different levels of disturbance; …
Every life insurance company provides financial protection services to the heirs or beneficiaries against various risks that will occurs in the event of death of the policyholder. The company must set aside a reserve fund to meet future obligations related to claims from policyholders. This reserve is obtained from premiums paid by insurance participants. The Premium Difference Formula re- serv…
Cincalok, a traditional food from Indragiri Hilir Regency, is made by spontaneous fermentation of rebon shrimp (Acetes sp.) mixed with salt and sago. This food is thought to contain lactic acid bacteria (LAB) that have the potential as probiotic agents that can provide positive benefits to the body's health if consumed in the right amount. This study aimed to isolate LAB and characterize them m…
Zinc oxide (ZnO) semiconductor is a material with a band gap energy of 3.37 eV that can be used as a photocatalyst to degrade pollutants in water. The weakness of this material is the relatively wide band gap energy, which limits the light response to photocatalytic activity. Efforts to increase its photocatalytic efficiency are carried out by adding impurities to ZnO. Single element doping has…
Thin films of (0.9)BaTiO3-(0.1)BaZr0.5Ti0.5O3 (BT-BZT) is ferroelectric materials developed to meet the specifications for multilayer ceramic capacitors (MLCC). This study aims to analyze the optical properties, crystal structure, morphological structure, and dielectric properties of BT-BZT using Ultraviolet-Visible (UV-Vis) spectroscopy, X-Ray Diffraction (XRD), Field Emission Scanning Electro…
Iron sand possesses unique magnetic properties, making it a promising material for various technological applications. This research aims to analyze the magnetic, optical, and compositional properties of iron oxide particles derived from Sunur-Pariaman beach sand, which were doped with cobalt. The material preparation process involved the ball milling method conducted in three stages, totaling …
This research was conducted to determine the purity of forest honey against the mixing of high fructose corn syrup (HFCS) and apple cider vinegar (ACV) based on concentration variations of..........
Tilapia is one type of freshwater fish that is widely cultivated in Indonesia. Fish is usually a food ingredient that is very easily damaged in freshness and its quality decreases rapidly after death........
Indonesia has abundant biodiversity, including more than 2,000 species of herbal plants that have the potential to be used as natural medicines. However, people still tend to prefer chemical drugs due to a lack of understanding of the benefits of herbal plants, including their ability to relieve pain. Additionally, many herbs are found in hard-to-reach areas, adding to the challenges in the ide…
Improving the quality of education in Indonesia is a crucial aspect of national development, where teacher quality plays a vital role. Teachers at SMPN 5 Teluk Kuantan, as part of the national education system, have an important role in shaping a quality young generation. Therefore, an effective mechanism is needed to evaluate their performance. The Fuzzy Tsukamoto method is a technique in expe…
The existence of the Mangrove Education Center Ecotourism over time has experienced some damage, to attract tourists, of course, efforts are needed to preserve ecotourism. Tourists can preserve ecotourism by paying for services, products and services when visiting ecotourism. This study aims to determine the characteristics of ecotourism visitors, analyze the willingness to pay (WTP) value of v…
This final project discusses the fear effect induced anti-predator behavior on predation in a modified Leslie-Gower predator-prey model, which includes prey refuge and predation rate following the Beddington-DeAngelis functional res- ponse. Furthermore, analyzing the equilibrium points and local stability, it is found that the model has four equilibrium points with one stable nodes and three un…
Keberhasilan peserta didik dalam proses pembelajaran dapat diketahui melalui hasil belajar metematika yang telah memenuhi ketercapaian pembelajaran. Ketercapaian pembelajaran matematika dapat dilihat dari ketuntasan hasil belajar peserta didik. Ketuntasan hasil belajar matematika diukur melalui Kriteria Ketercapaian Tujuan Pembelajaran (KKTP). Berdasarkan nilai sumatif peserta didik kelas VII-4…