Indobiosains

Uji In-Vivo Ekstrak Daun Sawo Manila (Manilkara zapota) Terhadap Pertumbuhan Escherichia coli

Anita Anita — 2024-08-01

Sawo manila (Manilkara zapota) is a member of the sapotaceae, which contains active chemical compounds such as saponins, tannins, and flavonoids that can inhibit and kill several bacteria, one of which is Escherichia coli. Escherichia coli is a normal flora bacteria in the digestive tract but will become pathogenic if its number in the digestive tract increases so that it can cause diarrhea. The aim of this research was to determine the effectiveness of Sawo manila (Manilkara zapota) leaf extract against Escherichia coli. Experimental laboratory work was done where Sawo manila leaves (Manilkara zapota) were powdered and then extracted using the maceration method. The inhibitory power test of Sawo manila leaf extract (Manilkara zapota) with concentrations of 50%, 75%, and 100% was carried out using the Kirby-Bauer diffusion method on Mueller Hinton Agar (MHA) media with an incubation period of 24 hours at 37°C. The test results showed that Sawo manila leaf extract (Manilkara zapota) at concentrations of 50%, 75%, and 100% did not contain an inhibitory zone. It was concluded that Sawo Manila (Manilkara zapota) was not effective against Escherichia coli.

Pembuatan Virgin Coconut Oil (VCO) Dengan Cara Penambahan Ragi Tempe

Razelita — 2024-08-01

Virgin Coconut Oil (VCO) is an innovative coconut oil that is processed without using heating or chemicals . The aim of this research is to analyze the quality of VCO by adding tempeh yeast and fermentation time to the VCO obtained. The research was carried out in March-May 2024 and quality testing was carried out at the Biology Laboratory, Faculty of Science and Technology, PGRI University, Palembang. The research method was a survey and experiment, the survey was carried out on community plantations in Kumbang Ilir Village, Kandis District, Ogan Ilir Regency. The experimental method was carried out with 16 treatments and 3 repetitions, then the data was analyzed using a Completely Randomized Design (CRD) with 2 factors, factor 1 was a variation of adding control tempe yeast starter (without yeast), 15 ml, 30 ml, 45 ml, and factor 2 was a variation fermentation time 6, 12, 18, 24 hours. The research results showed that the highest value for the amount of VCO was 104 ml in the T ₄S _{3 treatment,}the lowest value was in the T ₁S ₀= 15 ml treatment. The lowest VCO yield value was in the T ₁S _{0 treatment}= 7.5%, while the highest VCO yield value was in the T ₄S _{3 treatment}= 52%. The results of the organoleptic test assessed by the respondents stated that 100% of the VCO obtained was clear in color, in the taste test 80% of respondents assessed the taste as typical of coconut and 20% had no taste, and in the aroma test 64% assessed the aroma as typical of coconut, 18% assessed it as slightly rancid, and 18% rated rancid.

Keberadaan Escherichia coli Pada Air Sungai Musi Kota Palembang

Masito Masito — 2024-08-02

This research is entitled The Existence of Escherichia coli in Musi River Water, Palembang City. This research was conducted from April to May 2024 at the Palembang Public Health Laboratory Center. This research aims to analyze the number of E.coli in the Musi River water in the city of Palembang. The location for sampling river water is divided into 3 (three) stations, namely upstream (Musi VI), middle (Ampera) and downstream (Musi IV). Each river water sample was taken 2 (two) times on different days at low tide. This sample was taken by purposive sampling and 10 ml of each river water sample was taken. River water samples were tested using the membrane filter method. The results showed that the ALT value in river water at station 1 on the 1st day was 2.2 x 103 CFU/ml, at station 1 on the 2nd day as much as 2.4 x 103 CFU/ml, at station 2 on the 1st day as much as 1.9 x 103 CFU/ml, at station 2 on the 2nd day as much as 2.3 x 103 CFU/ml, at station 3 on the 1st day as much as 1.7 x 103 CFU/ml, at station 3 on the 3rd day as much as 2.1 x 103 CFU/ml. All positive samples contained E.coli bacteria, and exceeded the threshold for hygienic water and sanitation, namely above 0 CFU/100 ml (Permenkes, 2023)

Pola Pertumbuhan Dan Kebiasaan Makan Ikan Janggut (Esomus metallicus) Di Sungai Ogan Sumatera Selatan

Dewi Rosanti — 2024-08-01

ABSTRACT

Research on the growth patterns and eating habits of bearded fish (Esomus metallicus) in the Ogan River was carried out in April-May 2024. This research aims to study the growth patterns of bearded fish and analyze the types of food of bearded fish that live in the Ogan River, Palembang City. The research uses a survey method. Sampling was carried out at 3 stations. Station I is around water vegetation or is a natural habitat for fish, station II is around residential areas and station III is around a rubber factory. The fish obtained were taken as samples from 5 individuals each from each station. Each fish was measured for total length and weight. The sample was then dissected, the stomach was taken. The contents of the stomach are examined to see the composition of the types of food, and measure the total volume of food eaten and the volume of each type of food to determine the largest type of food (Index of Preponderance). The research results showed that the composition of the jangut fish's food was phytoplankton (44.39%), leaf debris (27.26%), zooplankton (0.26%) and unidentified (28.07%). The growth pattern of beard fish is negative allometric or growth in length is faster than growth in weight.

Keywords: Esomus metallicus, Index of Preponderance, allometric

Analisis Penentuan C-Organik Pada Sampel Tanah Secara Spektrofotometer UV-Vis

Kamisah Kamisah — 2024-08-01

Research has been carried out to analyze organic C levels in soil samples using a UV-Vis Spectrophotometer. Carbon in soil functions as a food source for microorganisms, which can accelerate decomposition activities and reactions of organic matter in the soil. The aim of determining organic C levels is to determine the amount of organic carbon contained in soil samples, which plays an important role in assessing soil fertility. The analytical method used is UV-Vis spectrophotometry. The analysis results showed that organic C levels in soil samples ranged from 0.15% to 2.27%. Samples with code D have the highest C-organic content, namely 2.27%, while samples with code A have the lowest C-organic content, namely 0.15%. Most organic C levels were detected in the deficiency (low) category. Low levels of organic C in the soil have an impact on plant growth that is less than optimal. To improve the quality and levels of soil organic C, it is recommended to add compost or urea to reach standards that correspond to good soil quality.

Analisis Pengaruh Peluang Dan Tantangan Dalam Pengembangan Teknologi Pertanian Di Era Revolusi Industri 4.0 Terhadap Hasil Produksi Padi Di Musi Rawas

Syabawaihi Syabawaihi — 2024-08-02

The goal of this investigation This study's focus is on how the industrial revolution unfolded. This journal's discussion of the elements influencing the growth of the industrial revolution is on how rice production affects the extent to which PTT and SRI technology is applied. This study aims to define and comprehend the effects of the industrial revolution. The purpose of this study is to determine variable values without developing, comparing, or seeking for correlations. It employs a single descriptive qualitative methodology. In this study, the sample method was purposeful sampling. A technique referred to as "purposive sampling" selects particular traits in accordance with the study's goals. According to research, technical advancements have.

Keywords: revolution, industry, rice.